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<rss version="2.0" xmlns:boostbook="urn:boost-org:boostbook" xmlns:atom="http://www.w3.org/2005/Atom">
<channel>
<generator>Boost Website Site Tools</generator>
<title>Boost Downloads</title>
<link>https://www.boost.org/users/download/</link>
<atom:link href="https://www.boost.org/generated/downloads.rss" rel="self" type="application/rss+xml" />
<description></description>
<language>en-us</language>
<copyright>Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or https://www.boost.org/LICENSE_1_0.txt)</copyright>
<item><title>Version 1.70.0</title><link>https://www.boost.org/users/history/version_1_70_0.html</link><guid>https://www.boost.org/users/history/version_1_70_0.html</guid><pubDate>Fri, 12 Apr 2019 06:04:48 +0000</pubDate><description>
&lt;div id="version_1_70_0.known_issues"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Known Issues&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
These are patches from library authors which were found too late to be fixed
in the release. Be careful as they have not been through the normal testing
process.
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fix moved-from executor in idle ping timeout (&lt;a href="https://github.com/boostorg/beast/issues/1599"&gt;#1599&lt;/a&gt;)
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://www.boost.org/patches/1_70_0/0001-beast-fix-moved-from-executor.patch"&gt;Beast
patch&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_70_0.new_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;New Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/outcome/"&gt;Outcome&lt;/a&gt;:&lt;/span&gt; A set of tools for reporting
and handling function failures in contexts where &lt;em&gt;directly&lt;/em&gt;
using C++ exception handling is unsuitable, from Niall Douglas.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/histogram/"&gt;Histogram&lt;/a&gt;:&lt;/span&gt; Fast and extensible
multi-dimensional histograms with convenient interface for C++14, from
Hans Dembinski.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_70_0.updated_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Updated Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/asio/"&gt;Asio&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
This release includes a number of new features, bug fixes, performance
enhancements, and documentation improvements. Notable changes include:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added the ability to use custom I/O executors with I/O objects
(such as sockets).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a new &lt;code&gt;&lt;span class="identifier"&gt;async_result&lt;/span&gt;&lt;/code&gt;
form with an &lt;code&gt;&lt;span class="identifier"&gt;initiate&lt;/span&gt;&lt;/code&gt;
static member function.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Updated the Coroutines TS support and promoted it to the &lt;code&gt;&lt;span class="identifier"&gt;asio&lt;/span&gt;&lt;/code&gt; namespace.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a new &lt;code&gt;&lt;span class="identifier"&gt;DynamicBuffer_v2&lt;/span&gt;&lt;/code&gt;
concept which is CopyConstructible.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a new &lt;code&gt;&lt;span class="identifier"&gt;async_compose&lt;/span&gt;&lt;/code&gt;
function that simplifies the implementation of user-defined
asynchronous operations.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a &lt;code&gt;&lt;span class="identifier"&gt;make_strand&lt;/span&gt;&lt;/code&gt;
helper function.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Relaxed the completion condition type requirements to only
require move-constructibility rather than copy-constructibility.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a constructor for &lt;code&gt;&lt;span class="identifier"&gt;local&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;basic_endpoint&lt;/span&gt;&lt;/code&gt;
that takes a &lt;code&gt;&lt;span class="identifier"&gt;string_view&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added the noexcept qualifier to various functions.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a new &lt;code&gt;&lt;span class="identifier"&gt;BOOST_ASIO_DISABLE_VISIBILITY&lt;/span&gt;&lt;/code&gt;
configuration &lt;code&gt;&lt;span class="preprocessor"&gt;#define&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Enabled recycling of the memory used to type-erase a function
object with the polymorphic executor.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Changed receive operations to return the correct number of
bytes transferred when truncation (&lt;code&gt;&lt;span class="identifier"&gt;error&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;message_size&lt;/span&gt;&lt;/code&gt;)
occurs on a datagram-oriented socket.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed calculation of absolute timeout when the backend uses
&lt;code&gt;&lt;span class="identifier"&gt;pthread_cond_timedwait&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Changed the range-based asynchronous connect operation to deduce
the &lt;code&gt;&lt;span class="identifier"&gt;EndpointSequence&lt;/span&gt;&lt;/code&gt;
iterator type.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed &lt;code&gt;&lt;span class="identifier"&gt;buffer_sequence_begin&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="identifier"&gt;buffer_sequence_end&lt;/span&gt;&lt;/code&gt;
to prevent implicit conversion.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Ensured SSL handshake errors are propagated to the peer before
the local operation completes.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Suppressed the &lt;code&gt;&lt;span class="identifier"&gt;eof&lt;/span&gt;&lt;/code&gt;
error on SSL shutdown as it actually indicates success.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a fallback error code for when we OpenSSL produces an
&lt;code&gt;&lt;span class="identifier"&gt;SSL_ERROR_SYSCALL&lt;/span&gt;&lt;/code&gt;
result without an associated error.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Changed composed asynchronous read and write operations to
move buffer sequence objects.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a macOS-specific warning about the deprecation of &lt;code&gt;&lt;span class="identifier"&gt;OSMemoryBarrier&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed compile errors that occur when using the composed read
and write operations with MSVC 11.0.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improved &lt;code&gt;&lt;span class="identifier"&gt;dispatch&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;post&lt;/span&gt;&lt;/code&gt; and &lt;code&gt;&lt;span class="identifier"&gt;defer&lt;/span&gt;&lt;/code&gt; documentation.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a Windows-specific memory leak that may occur when &lt;code&gt;&lt;span class="identifier"&gt;system_executor&lt;/span&gt;&lt;/code&gt; is used.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Consult the &lt;a href="https://www.boost.org/doc/libs/1_70_0/doc/html/boost_asio/history.html"&gt;Revision
History&lt;/a&gt; for further details.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/beast/"&gt;Beast&lt;/a&gt;:&lt;/span&gt;
&lt;strong&gt;BIG
Update!!!&lt;/strong&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Some APIs have changed.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/quickref.html"&gt;reference&lt;/a&gt;
shows a star ★ next to each new item.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Beast needs your help!
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/beast/wiki/Companies-and-Individuals-Using-Beast"&gt;Tell
Us&lt;/a&gt; how you or your company use Beast
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Please &lt;a href="https://github.com/boostorg/beast/issues/new"&gt;report&lt;/a&gt;
any bugs, feature requests, or general feedback
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Join the &lt;a href="https://cppalliance.org/slack/"&gt;&lt;strong&gt;C++ Slack Workspace&lt;/strong&gt;&lt;/a&gt; for free
and chat with us in the #beast and #boost channels
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Don't forget to &lt;a href="https://github.com/boostorg/beast"&gt;star
the repository&lt;/a&gt; ⭐!
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
More tutorials, code like the pros!
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://www.boost.org/libs/beast/doc/html/beast/using_io/asio_refresher.html"&gt;Networking
Refresher&lt;/a&gt; teaches you from the ground up.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Updated &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/using_io/writing_composed_operations/echo.html"&gt;Asynchronous
Echo&lt;/a&gt; example
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Updated &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/using_io/writing_composed_operations/detect_ssl.html"&gt;&lt;strong&gt;Detect SSL&lt;/strong&gt;&lt;/a&gt; composed operation
tutorial
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://www.boost.org/libs/beast/example/websocket/server/chat-multi"&gt;websocket-chat-multi&lt;/a&gt;
threaded chat server with a JavaScript &lt;a href="https://www.boost.org/libs/beast/example/websocket/server/chat-multi/chat_client.html"&gt;browser
client&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__basic_stream.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;basic_stream&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; and &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__tcp_stream.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;tcp_stream&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; offer:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Timeouts: &lt;code&gt;&lt;span class="identifier"&gt;async_read_some&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;async_write_some&lt;/span&gt;&lt;/code&gt;
complete with &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__error.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;error&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;timeout&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; on expiration!
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Traffic-shaping policies &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__simple_rate_policy.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;simple&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; and &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__unlimited_rate_policy.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;unlimited&lt;/span&gt;&lt;/code&gt;&lt;/a&gt;, or a user-defined
&lt;a href="https://www.boost.org/libs/beast/doc/html/beast/concepts/RatePolicy.html"&gt;&lt;em&gt;RatePolicy&lt;/em&gt;&lt;/a&gt;!
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Put the strand directly on the socket using &lt;a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1322r0.html"&gt;P1322R0&lt;/a&gt;,
no more &lt;code&gt;&lt;span class="identifier"&gt;bind_executor&lt;/span&gt;&lt;/code&gt;
at call sites!
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Base classes &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__async_base.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;async_base&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; and &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__stable_async_base.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;stable_async_base&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; and handle
all composed operation boilerplate for you.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://www.boost.org/libs/beast/doc/html/beast/ref/boost__beast__ssl_stream.html"&gt;&lt;code&gt;&lt;span class="identifier"&gt;ssl_stream&lt;/span&gt;&lt;/code&gt;&lt;/a&gt; provides a movable,
assignable SSL stream with a flat write optimization.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
All asynchronous operations use Asio's &lt;code&gt;&lt;span class="identifier"&gt;async_initiate&lt;/span&gt;&lt;/code&gt;
for efficient integration with Coroutines TS.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;strong&gt;&lt;em&gt;faster compilation&lt;/em&gt;&lt;/strong&gt;,
define &lt;code&gt;&lt;span class="identifier"&gt;BOOST_BEAST_SEPARATE_COMPILATION&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="preprocessor"&gt;#include&lt;/span&gt; &lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;beast&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;src&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt;
in one of your .cpp files!
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
See the full &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/release_notes.html"&gt;Release
Notes&lt;/a&gt; for a complete list of changes.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/context/"&gt;Context&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/91"&gt;#91&lt;/a&gt;: cleanup of stack if creating ucontext fails
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/97"&gt;#97&lt;/a&gt;: add missing BOST_CONTEXT_DECL in stack_context
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/98"&gt;#98&lt;/a&gt;: fix jump_i386_sysv_macho writing garbage to the x87
control word
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/coroutine2/"&gt;Coroutine2&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/coroutine2/issues/28"&gt;#28&lt;/a&gt;: don't crash on pthread_cancel
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/dll/"&gt;DLL&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
New macro &lt;a href="https://www.boost.org/libs/dll/BOOST_DLL_USE_STD_FS.html"&gt;BOOST_DLL_USE_STD_FS&lt;/a&gt;.
Define it to &lt;code&gt;&lt;span class="number"&gt;1&lt;/span&gt;&lt;/code&gt; to make
the Boost.DLL use C++17's &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;filesystem&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;path&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;system_error&lt;/span&gt;&lt;/code&gt; and &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;error_code&lt;/span&gt;&lt;/code&gt; (&lt;a href="https://github.com/boostorg/dll/issues/21"&gt;#21&lt;/a&gt;). Note that
exception types change from &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;system&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;system_error&lt;/span&gt;&lt;/code&gt;
to &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;system_error&lt;/span&gt;&lt;/code&gt;, so make sure to update
&lt;code&gt;&lt;span class="keyword"&gt;catch&lt;/span&gt;&lt;/code&gt;es.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Significant rewrite of the dynamic loadable detection and decoration
logic. More precise errors are now reported in case of loading failures.
Added &lt;code&gt;&lt;span class="identifier"&gt;shared_library&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;decorate&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; function that returns a decorated
path to the library without doing any platform related queries and
detections. Prefer using &lt;code&gt;&lt;span class="identifier"&gt;shared_library&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;load&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="identifier"&gt;shared_library&lt;/span&gt;&lt;/code&gt;
constructors for better results (many thanks to Loïc Touraine for
the work &lt;a href="https://github.com/boostorg/dll/pull/23"&gt;PR#23&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
CI hardening, docs updates, typos fixes, cleanups and many portability
fixes.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/dynamic_bitset/"&gt;Dynamic Bitset&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Disabled hardware-assisted popcount (added in 1.69.0) on MSVC due
to undefined behavior on older CPUs. (&lt;a href="https://github.com/boostorg/dynamic_bitset/issues/33"&gt;#33&lt;/a&gt; &lt;a href="https://github.com/boostorg/dynamic_bitset/pull/35"&gt;PR#35&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/fiber/"&gt;Fiber&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/191"&gt;#191&lt;/a&gt;: ignore unused argument warning
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/196"&gt;#196&lt;/a&gt;: fix high contention on remote_ready_splk_
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/filesystem/"&gt;Filesystem&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a few instances of dereferencing &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;end&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; in &lt;code&gt;&lt;span class="identifier"&gt;path&lt;/span&gt;&lt;/code&gt;
implementation.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed program termination in case of out of memory condition in directory
iterators constructors and operations accepting a reference to &lt;code&gt;&lt;span class="identifier"&gt;error_code&lt;/span&gt;&lt;/code&gt;. (&lt;a href="https://github.com/boostorg/filesystem/issues/58"&gt;#58&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed possible linking errors caused by missing definitions of static
members of &lt;code&gt;&lt;span class="identifier"&gt;path&lt;/span&gt;&lt;/code&gt;.
(&lt;a href="https://svn.boost.org/trac/boost/ticket/12759"&gt;#12759&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed possible use of uninitialized data in directory iterator increment
operation on Linux.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added support for movability to directory iterators.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added file status query overloads for &lt;code&gt;&lt;span class="identifier"&gt;directory_entry&lt;/span&gt;&lt;/code&gt;.
This avoids a relatively expensive OS query when file status is requested
for a result of dereferencing a directory iterator. (&lt;a href="https://github.com/boostorg/filesystem/pull/55"&gt;PR#55&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Reworked &lt;code&gt;&lt;span class="identifier"&gt;current_path&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="identifier"&gt;read_symlink&lt;/span&gt;&lt;/code&gt;
implementation to avoid possible memory exhaustion on broken or tampered
with filesystems. The functions now have an internal limit of the
path size they will accept from the OS, which is currently 16 MiB.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Increased the size of the internal buffer used by &lt;code&gt;&lt;span class="identifier"&gt;copy_file&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/integer/"&gt;Integer&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added Extended Euclidean Algorithm and Modular Multiplicative Inverse
function. (Nick Thompson, &lt;a href="https://github.com/boostorg/integer/pull/11"&gt;PR#11&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/log/"&gt;Log&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
New features:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added support for generating another log file name before collecting
the file in the text file sink backend. This allows to combine
appending to an existing log file with timestamps and file
counters in log filenames, and, consequently, file collection
in general.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
See &lt;a href="https://www.boost.org/libs/log/doc/html/log/changelog.html"&gt;changelog&lt;/a&gt;
for more details.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/math/"&gt;Math&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
New features:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Add Lanczos smoothing derivatives
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Move &lt;code&gt;&lt;span class="identifier"&gt;numerical_differentiation&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;
from &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;math&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;tools&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;/code&gt; to &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;math&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;differentiation&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;finite_difference&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add mean, variance, skewness, kurtosis, median, Gini coefficient,
and median absolute deviation to &lt;code&gt;&lt;span class="identifier"&gt;tools&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;univariate_statistics&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add correlation coefficients and covariance to &lt;code&gt;&lt;span class="identifier"&gt;tools&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;bivariate_statistics&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add absolute Gini coefficient, Hoyer sparsity, oracle SNR,
and the &lt;em&gt;M&lt;/em&gt;[sub 2]&lt;em&gt;M&lt;/em&gt;[sub
4] SNR estimator to &lt;code&gt;&lt;span class="identifier"&gt;tools&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;signal_statistics&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add total variation, l0, l1, l2, and sup norms, as well as
corresponding distance functions to &lt;code&gt;&lt;span class="identifier"&gt;tools&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;norms&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add move constructors for polynomials, support complex coefficients,
add &lt;code&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;prime&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; and &lt;code&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;integrate&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt;
methods.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add &lt;code&gt;&lt;span class="identifier"&gt;quadratic_roots&lt;/span&gt;&lt;/code&gt;
to &lt;code&gt;&lt;span class="identifier"&gt;tools&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;roots&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add support for complex-valued functions to Newton's method
in &lt;code&gt;&lt;span class="identifier"&gt;roots&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add Catmull-Rom interpolator.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/mp11/"&gt;Mp11&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Renamed &lt;code&gt;&lt;span class="identifier"&gt;mp_invoke&lt;/span&gt;&lt;/code&gt;
to &lt;code&gt;&lt;span class="identifier"&gt;mp_invoke_q&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_similar&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_set_union&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;mp_set_intersection&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;mp_set_difference&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_not_fn&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_transform_first&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;mp_transform_second&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;mp_transform_third&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_filter&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_eval_if_not&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;mp_eval_or&lt;/span&gt;&lt;/code&gt;, &lt;code&gt;&lt;span class="identifier"&gt;mp_valid_q&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;mp_back&lt;/span&gt;&lt;/code&gt;, &lt;code&gt;&lt;span class="identifier"&gt;mp_pop_back&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multi_index/"&gt;Multi-index Containers&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;size_type&lt;/span&gt;&lt;/code&gt; and &lt;code&gt;&lt;span class="identifier"&gt;difference_type&lt;/span&gt;&lt;/code&gt; are now defined
as the allocator's same-named types. This will not make any difference
in the vast majority of cases, but allows for some degree of control
of resulting internal structures via user-defined allocator types
(see issue &lt;a href="https://github.com/boostorg/multi_index/issues/17"&gt;#17&lt;/a&gt; for motivation). For the moment being,
this change is not documented in the reference section (i.e., it
has semi-official status).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Maintenance work.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multiprecision/"&gt;Multiprecision&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fix various conversion issues in the traits classes, check for compatibility
with Boost.Optional.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Prevent instantiation of &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;numeric_limits&lt;/span&gt;&lt;/code&gt;
on any old type when checking for convertibility. See &lt;a href="https://github.com/boostorg/multiprecision/issues/98"&gt;#98&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Update variable precision code to account for arbitrary precision
integers. See &lt;a href="https://github.com/boostorg/multiprecision/issues/103"&gt;#103&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add support for XML serialization archives.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix bug in fixed precision iostream formatting in &lt;code&gt;&lt;span class="identifier"&gt;mpf_float&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="identifier"&gt;mpfr_float&lt;/span&gt;&lt;/code&gt;. See
&lt;a href="https://github.com/boostorg/multiprecision/issues/113"&gt;#113&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add more overloads for special functions which are better handled
natively by MPFR.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed bug in generic &lt;code&gt;&lt;span class="identifier"&gt;exp&lt;/span&gt;&lt;/code&gt;
implementation which could cause invariant failure.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed generic conversion from float to integer to avoid undefined
behaviour. See &lt;a href="https://github.com/boostorg/multiprecision/issues/110"&gt;#110&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/poly_collection/"&gt;PolyCollection&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Improved handling of stateful allocators and allocator propagation
traits, after an error reported by Billy O'Neal (&lt;a href="https://github.com/boostorg/poly_collection/pull/9"&gt;PR#9&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a potentially serious bug with an internal cache structure.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/spirit/"&gt;Spirit&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Removed use of deprecated &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;detail&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;iterator&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;
header. &lt;a href="https://github.com/boostorg/spirit/pull/432"&gt;PR#432&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
X3
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Integer parsers should now handle user defined types. &lt;a href="https://github.com/boostorg/spirit/pull/429"&gt;PR#429&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;strong&gt;Note:&lt;/strong&gt; The &lt;code&gt;&lt;span class="identifier"&gt;check_overflow&lt;/span&gt;&lt;/code&gt;
trait default implementation now relies on &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;numeric_limits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;is_bounded&lt;/span&gt;&lt;/code&gt;
instead of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;integer_traits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;is_integral&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed sequence into plain parsing. Now it triggers a compile
time error instead of silently parsing the the sequence and
taking the last value as a result. &lt;a href="https://github.com/boostorg/spirit/pull/439"&gt;PR#439&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed &lt;code&gt;&lt;span class="identifier"&gt;parse_rule&lt;/span&gt;&lt;/code&gt;
instantiation with &lt;code&gt;&lt;span class="identifier"&gt;BOOST_SPIRIT_INSTANTIATE&lt;/span&gt;&lt;/code&gt;
when:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
A rule has no attribute. &lt;a href="https://github.com/boostorg/spirit/pull/455"&gt;PR#455&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
An actual attribute is not of type a rule was declared
with. &lt;a href="https://github.com/boostorg/spirit/pull/456"&gt;PR#456&lt;/a&gt; &lt;a href="https://github.com/boostorg/spirit/issues/457"&gt;#457&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
A &lt;strong&gt;huge&lt;/strong&gt; thanks goes out to
&lt;a href="https://github.com/Xeverous"&gt;Xeverous&lt;/a&gt; for
reporting a regression in &lt;a href="https://github.com/boostorg/spirit/issues/453"&gt;#453&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed unneded attribute synthesization and no-transformation
attribute reference pass-through in rules. &lt;a href="https://github.com/boostorg/spirit/issues/444"&gt;#444&lt;/a&gt; &lt;a href="https://github.com/boostorg/spirit/pull/449"&gt;PR#449&lt;/a&gt; &lt;a href="https://github.com/boostorg/spirit/pull/452"&gt;PR#452&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed broken 1.0#INF parser. It was poorly documented and
never worked. &lt;a href="https://github.com/boostorg/spirit/issues/415"&gt;#415&lt;/a&gt; &lt;a href="https://github.com/boostorg/spirit/pull/458"&gt;PR#458&lt;/a&gt; &lt;a href="https://svn.boost.org/trac/boost/ticket/8699"&gt;#8699&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The undocumented &lt;code&gt;&lt;span class="identifier"&gt;make_attribute&lt;/span&gt;&lt;/code&gt;
trait was removed due to bugs &lt;a href="https://github.com/boostorg/spirit/pull/449"&gt;PR#449&lt;/a&gt;
and to simplify
attribute transformation. &lt;a href="https://github.com/boostorg/spirit/pull/460"&gt;PR#460&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
If you were using it to workaround bugs in attribute transformation
- they should not be needed anymore as of this release.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The integer value parser now respects &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;numeric_limits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;digits10&lt;/span&gt;&lt;/code&gt;
value. &lt;a href="https://github.com/boostorg/spirit/pull/469"&gt;PR#469&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed underflow check for a &lt;code&gt;&lt;span class="special"&gt;(&lt;/span&gt;&lt;span class="identifier"&gt;Min&lt;/span&gt; &lt;span class="special"&gt;%&lt;/span&gt;
&lt;span class="identifier"&gt;Base&lt;/span&gt;&lt;span class="special"&gt;)&lt;/span&gt;
&lt;span class="special"&gt;==&lt;/span&gt; &lt;span class="number"&gt;0&lt;/span&gt;&lt;/code&gt;
corner case. &lt;a href="https://github.com/boostorg/spirit/pull/469"&gt;PR#469&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed an output value on overflow of IgnoreOverflowDigits=true
integer parser. &lt;a href="https://github.com/boostorg/spirit/pull/470"&gt;PR#470&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Container attribute elements were copyied, but not moved. &lt;a href="https://github.com/boostorg/spirit/pull/472"&gt;PR#472&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Special handling of references in &lt;code&gt;&lt;span class="identifier"&gt;transform_attribute&lt;/span&gt;&lt;/code&gt;
was removed. &lt;a href="https://github.com/boostorg/spirit/pull/480"&gt;PR#480&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
V2
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Macro name collisions and namespace conflicts with Boost.Endian
were fixed. &lt;a href="https://github.com/boostorg/spirit/pull/349"&gt;PR#349&lt;/a&gt; &lt;a href="https://github.com/boostorg/spirit/pull/482"&gt;PR#482&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
utree
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed UB in tag getter due to left shift of negative
value. &lt;a href="https://github.com/boostorg/spirit/pull/423"&gt;PR#423&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed double-conversion (&lt;code&gt;&lt;span class="identifier"&gt;spirit&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string&lt;/span&gt;
&lt;span class="special"&gt;-&amp;gt;&lt;/span&gt; &lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string&lt;/span&gt;
&lt;span class="special"&gt;-&amp;gt;&lt;/span&gt; &lt;span class="identifier"&gt;spirit&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string&lt;/span&gt;&lt;/code&gt;).
&lt;a href="https://github.com/boostorg/spirit/pull/462"&gt;PR#462&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Qi
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added static asserts for rule skipper type problems.
&lt;a href="https://github.com/boostorg/spirit/pull/427"&gt;PR#427&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The &lt;code&gt;&lt;span class="identifier"&gt;check_overflow&lt;/span&gt;&lt;/code&gt;
trait default implementation now relies on &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;numeric_limits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;is_bounded&lt;/span&gt;&lt;/code&gt; instead
of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;integer_traits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;is_integral&lt;/span&gt;&lt;/code&gt;
&lt;a href="https://github.com/boostorg/spirit/pull/429"&gt;PR#429&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Integer parsers should now handle user defined types.
&lt;a href="https://github.com/boostorg/spirit/pull/429"&gt;PR#429&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;strong&gt;Note:&lt;/strong&gt; The &lt;code&gt;&lt;span class="identifier"&gt;check_overflow&lt;/span&gt;&lt;/code&gt; trait
default implementation now relies on &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;numeric_limits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;is_bounded&lt;/span&gt;&lt;/code&gt;
instead of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;integer_traits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;is_integral&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed broken 1.0#INF parser. It was poorly documented
and never worked. &lt;a href="https://github.com/boostorg/spirit/issues/415"&gt;#415&lt;/a&gt; &lt;a href="https://github.com/boostorg/spirit/pull/458"&gt;PR#458&lt;/a&gt; &lt;a href="https://svn.boost.org/trac/boost/ticket/8699"&gt;#8699&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The undocumented &lt;code&gt;&lt;span class="identifier"&gt;make_attribute&lt;/span&gt;&lt;/code&gt;
trait was merged into &lt;code&gt;&lt;span class="identifier"&gt;transform_attribute&lt;/span&gt;&lt;/code&gt;
trait. &lt;a href="https://github.com/boostorg/spirit/pull/471"&gt;PR#471&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The &lt;code&gt;&lt;span class="identifier"&gt;pre_transform&lt;/span&gt;&lt;/code&gt;,
&lt;code&gt;&lt;span class="identifier"&gt;post_transform&lt;/span&gt;&lt;/code&gt;,
and &lt;code&gt;&lt;span class="identifier"&gt;fail_transform&lt;/span&gt;&lt;/code&gt;
utility functions were removed in favor of directly using
&lt;code&gt;&lt;span class="identifier"&gt;pre&lt;/span&gt;&lt;/code&gt;/&lt;code&gt;&lt;span class="identifier"&gt;post&lt;/span&gt;&lt;/code&gt;/&lt;code&gt;&lt;span class="identifier"&gt;fail&lt;/span&gt;&lt;/code&gt; of the transform
trait. &lt;a href="https://github.com/boostorg/spirit/pull/467"&gt;PR#467&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The integer value parser now respects &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;numeric_limits&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;::&lt;/span&gt;&lt;span class="identifier"&gt;digits10&lt;/span&gt;&lt;/code&gt;
value. &lt;a href="https://github.com/boostorg/spirit/pull/469"&gt;PR#469&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed underflow check for a &lt;code&gt;&lt;span class="special"&gt;(&lt;/span&gt;&lt;span class="identifier"&gt;Min&lt;/span&gt; &lt;span class="special"&gt;%&lt;/span&gt;
&lt;span class="identifier"&gt;Base&lt;/span&gt;&lt;span class="special"&gt;)&lt;/span&gt;
&lt;span class="special"&gt;==&lt;/span&gt; &lt;span class="number"&gt;0&lt;/span&gt;&lt;/code&gt;
corner case. &lt;a href="https://github.com/boostorg/spirit/pull/469"&gt;PR#469&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed an output value on overflow of IgnoreOverflowDigits=true
integer parser. &lt;a href="https://github.com/boostorg/spirit/pull/470"&gt;PR#470&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Special handling of references in &lt;code&gt;&lt;span class="identifier"&gt;transform_attribute&lt;/span&gt;&lt;/code&gt;
was removed. &lt;a href="https://github.com/boostorg/spirit/pull/480"&gt;PR#480&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Lex
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed UB in default constructor of lexer with user specified
token type. &lt;a href="https://github.com/boostorg/spirit/pull/420"&gt;PR#420&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Classic:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed &lt;code&gt;&lt;span class="identifier"&gt;position_iterator&lt;/span&gt;&lt;/code&gt;
forming reference to local when the underlying iterator dereference
operator returns a non-reference type. &lt;a href="https://github.com/boostorg/spirit/pull/422"&gt;PR#422&lt;/a&gt; &lt;a href="https://svn.boost.org/trac/boost/ticket/9737"&gt;#9737&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/stacktrace/"&gt;Stacktrace&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Build fix for iOS 32-bit ARM (many thanks to Ivan Ponomarev for providing
the fix &lt;a href="https://github.com/boostorg/stacktrace/pull/70"&gt;PR#70&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed multiple typos, warnings and updated the docs.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/test/"&gt;Test&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Boost.test v3.10 see the &lt;a href="https://www.boost.org/users/history/libs/test/doc/html/boost_test/change_log.html"&gt;Changes
log&lt;/a&gt; for more details.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Breaking changes:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Boost.Test &lt;code&gt;&lt;span class="identifier"&gt;minimal&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;
is now showing a deprecation warning,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Change in floating point comparison may fail tests that were
silently not using the floating point comparison logic prior
to this release,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Internal API change to &lt;code&gt;&lt;span class="identifier"&gt;unit_test_log_formatter&lt;/span&gt;&lt;/code&gt;,
see detailed change log,
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
New feature:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Floating point comparison has been extended to capture non-floating
point and arithmetic operands: expressions like &lt;code&gt;&lt;span class="identifier"&gt;BOOST_TEST&lt;/span&gt;&lt;span class="special"&gt;(&lt;/span&gt;&lt;span class="number"&gt;3.0001&lt;/span&gt; &lt;span class="special"&gt;==&lt;/span&gt;
&lt;span class="number"&gt;3&lt;/span&gt;&lt;span class="special"&gt;)&lt;/span&gt;&lt;/code&gt;
now use floating point support of Boost.Test,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Custom datasets are not required to declare the &lt;code&gt;&lt;span class="identifier"&gt;sample&lt;/span&gt;&lt;/code&gt; type field anymore,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Extending template test cases from &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;tuple&lt;/span&gt;&lt;/code&gt;
to any variadic definition,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows support for timed tests,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Timed test on test-suites,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed dependency to Boost.Timer,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
New macro &lt;code&gt;&lt;span class="identifier"&gt;BOOST_TEST_INFO_SCOPE&lt;/span&gt;&lt;/code&gt;
for scoped context declaration,
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improved &lt;code&gt;&lt;span class="identifier"&gt;BOOST_TEST_CONTEXT&lt;/span&gt;&lt;/code&gt;
syntax
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Bug fixes and pull requests:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Trac tickets: &lt;a href="https://svn.boost.org/trac/boost/ticket/7397"&gt;#7397&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/9434"&gt;#9434&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/13106"&gt;#13106&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/13418"&gt;#13418&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GitHub Issues: &lt;a href="https://github.com/boostorg/test/issues/133"&gt;#133&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/138"&gt;#138&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/141"&gt;#141&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/157"&gt;#157&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/issues/160"&gt;#160&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/174"&gt;#174&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/176"&gt;#176&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/177"&gt;#177&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/180"&gt;#180&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/issues/181"&gt;#181&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/194"&gt;#194&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/196"&gt;#196&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/198"&gt;#198&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/199"&gt;#199&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/issues/202"&gt;#202&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/203"&gt;#203&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/204"&gt;#204&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GitHub Pull Requests: &lt;a href="https://github.com/boostorg/test/pull/171"&gt;PR#171&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/172"&gt;PR#172&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/182"&gt;PR#182&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/pull/183"&gt;PR#183&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/184"&gt;PR#184&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/190"&gt;PR#190&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/195"&gt;PR#195&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/pull/195"&gt;PR#195&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/197"&gt;PR#197&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/205"&gt;PR#205&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/type_index/"&gt;TypeIndex&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Support for the GHS C++ compiler added (many thanks to Brandon Castellano
for providing the patch &lt;a href="https://github.com/boostorg/type_index/pull/28"&gt;PR#28&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Optimized string and type comparisons (many thanks to Andrey Semashev
for providing the patch &lt;a href="https://github.com/boostorg/type_index/pull/23"&gt;PR#23&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed clang-win compilation (many thanks to Peter Dimov for providing
the patch &lt;a href="https://github.com/boostorg/type_index/pull/25"&gt;PR#25&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
CI hardening.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/type_traits/"&gt;TypeTraits&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added is_bounded_array and is_unbounded_array (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added copy_reference and copy_cv_ref (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improved support for msvc with /clr option.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Misc compiler compatibility fixes.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/variant/"&gt;Variant&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Many cleanups and internal improvements, many thanks to Nikita Kniazev
(&lt;a href="https://github.com/boostorg/variant/pull/55"&gt;PR#55&lt;/a&gt;, &lt;a href="https://github.com/boostorg/variant/pull/56"&gt;PR#56&lt;/a&gt;, &lt;a href="https://github.com/boostorg/variant/pull/57"&gt;PR#57&lt;/a&gt;) and Louis Dionne
(&lt;a href="https://github.com/boostorg/variant/pull/51"&gt;PR#51&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
CI hardening.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/numeric/ublas/"&gt;uBlas&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Addition of tensor framework (many thanks to Cem Bassoy &lt;a href="https://github.com/boostorg/ublas/pull/65"&gt;PR#65&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Addition of basic OpenCL support (many thanks to Fady Essam &lt;a href="https://github.com/boostorg/ublas/pull/59"&gt;PR#59&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Integration of basic benchmark suite (many thanks to Stefan Seefeld
&lt;a href="https://github.com/boostorg/ublas/pull/57"&gt;PR#57&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
CI integration and hardening
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_70_0.compilers_tested"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Compilers Tested&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Boost's primary test compilers are:
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Linux:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 3.0, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++0x: 3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1, 7.0.0, 8.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2,
6.0.1, 7.0.0, 8.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++17: 5.0.2, 6.0.1, 7.0.0, 8.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 4.4.7, 4.5.3, 4.6.3, 5.4.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.4.7
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.4.0, 5.5.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Intel, C++14: 18.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
OS X:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++11: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++14: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++17: 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++1z: 9.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++2a: 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.6.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
FreeBSD:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++1z: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Boost's additional test compilers include:
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Linux:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 3.0, 3.8.1, 3.9.1, 4.0.1, 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++0x: 3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1, 7.0.0, 8.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2,
6.0.1, 7.0.0, 8.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++17: 5.0.2, 6.0.1, 7.0.0, 8.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 4.4.7, 4.5.3, 4.6.3, 4.9.4, 5.4.0, 5.5.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.4.7
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.4.0, 5.5.0, 6.3.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1, 8.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Intel, C++14: 18.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
OS X:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++11: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++14: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++17: 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++1z: 9.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++2a: 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.6.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
FreeBSD:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++1z: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_70_0.acknowledgements"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Acknowledgements&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Daniel James, Vladimir Prus, Marshall Clow and Michael Caisse managed this
release.
&lt;/p&gt;
&lt;/div&gt;
</description></item><item><title>Version 1.69.0</title><link>https://www.boost.org/users/history/version_1_69_0.html</link><guid>https://www.boost.org/users/history/version_1_69_0.html</guid><pubDate>Wed, 12 Dec 2018 02:58:32 +0000</pubDate><description>
&lt;div id="version_1_69_0.notes_for_non_windows_users"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Notes for non-Windows
users&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
The Boost build system now supports visibilities. If you are building shared
libraries, they will use hidden visibility by default. As a result Boost shared
libraries become smaller, load faster and have less chances to get a symbol
collision.
&lt;/p&gt;
&lt;p&gt;
See &lt;a href="https://www.boost.org/build/manual/develop/index.html#bbv2.builtin.features.visibility"&gt;Boost.Build
visibility and local-visibility&lt;/a&gt; for more info.
&lt;/p&gt;
&lt;p&gt;
To disable that feature you can use use a command line &lt;code&gt;&lt;span class="special"&gt;./&lt;/span&gt;&lt;span class="identifier"&gt;b2&lt;/span&gt; &lt;span class="identifier"&gt;visibility&lt;/span&gt;&lt;span class="special"&gt;=&lt;/span&gt;&lt;span class="identifier"&gt;global&lt;/span&gt;&lt;/code&gt; to
build.
&lt;/p&gt;
&lt;/div&gt;
&lt;div id="version_1_69_0.new_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;New Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/safe_numerics/"&gt;Safe Numerics&lt;/a&gt;:&lt;/span&gt; A library
for guaranteed correct integer arithmetic for C++14 and later, from Robert
Ramey.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_69_0.updated_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Updated Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/any/"&gt;Any&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed issue with visibility. Now &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;any&lt;/span&gt;&lt;/code&gt;
variables constructed in one shared library with hidden visibility
could be used and destroyed in other shared library with hidden visibility.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Maintenance: dropped some dependencies on other Boost libraries,
fixes for docs.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/asio/"&gt;Asio&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a problem with the detection of &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;future&lt;/span&gt;&lt;/code&gt;
availability with libstdc++.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed compile error in regex overload of &lt;code&gt;&lt;span class="identifier"&gt;read_until&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a timer heap corruption issue that can occur when moving a
cancelled timer.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed detection of &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;experimental&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string_view&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string_view&lt;/span&gt;&lt;/code&gt; with newer clang/libc++.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed MSVC version detection for availability of &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;invoke_result&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed the buffer sequence traits to test the new requirements, if
&lt;code&gt;&lt;span class="keyword"&gt;decltype&lt;/span&gt;&lt;/code&gt; is available.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed an MSVC issue when building with exceptions disabled.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added SSL context options for TLS v1.3.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added a compile-time test for TLS v1 support.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed the macro used to test for TLS v1.2 support.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Prevented global objects from being created once per thread on Windows.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a crash when using &lt;code&gt;&lt;span class="identifier"&gt;size&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt;, &lt;code&gt;&lt;span class="identifier"&gt;max_size&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; or &lt;code&gt;&lt;span class="identifier"&gt;empty&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; on default-constructed resolver
results.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Changed to move the return value in &lt;code&gt;&lt;span class="identifier"&gt;basic_resolver_results&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;begin&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; to avoid copying.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Enabled move support for the Intel Compiler.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string_view&lt;/span&gt;&lt;/code&gt; detection issue when
using clang-cl.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed the handler tracking operation name for &lt;code&gt;&lt;span class="identifier"&gt;io_context&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;executor_type&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;dispatch&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a buffer overflow that could occur when parsing an address
string with a 64-bit scope id.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added examples showing how to write composed operations.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added C++11 versions of the Timeouts, Timers, SOCKS4 and SSL examples.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed minor issues in documentation and examples.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/assign/"&gt;Assign&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Add rvalue reference, perfect forwarding, and variadic template support
(&lt;a href="https://github.com/boostorg/assign/pull/6"&gt;PR#6&lt;/a&gt;) (&lt;a href="https://svn.boost.org/trac/boost/ticket/10477"&gt;#10477&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Avoid conversion to container's allocator (&lt;a href="https://github.com/boostorg/assign/pull/29"&gt;PR#29&lt;/a&gt;) (&lt;a href="https://svn.boost.org/trac/boost/ticket/5419"&gt;#5419&lt;/a&gt;)
(&lt;a href="https://svn.boost.org/trac/boost/ticket/7364"&gt;#7364&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/beast/"&gt;Beast&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
This version fixes some issues in the examples, and provides a new
experimental socket which supports built-in timeouts on asynchronous
operations.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
New CppCon 2018 &lt;a href="https://www.boost.org/doc/libs/master/libs/beast/doc/html/beast/examples.html#beast.examples.cppcon_2018"&gt;websocket
chat example&lt;/a&gt; and &lt;a href="https://www.youtube.com/watch?v=7FQwAjELMek"&gt;presentation
video&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
For a complete list of changes, please view the official &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/release_notes.html"&gt;Release
Notes&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/circular_buffer/"&gt;CircularBuffer&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Use the empty base optimization for storing allocators that are empty
and not final (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/concept_check/"&gt;Concept Check&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Removed dependency on mpl. (&lt;a href="https://github.com/boostorg/concept_check/pull/14"&gt;PR#14&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/context/"&gt;Context&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/85"&gt;#85&lt;/a&gt;: duplicate alias should be missing GCC alias
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/87"&gt;#87&lt;/a&gt;: the clang-win toolset (clang-cl.exe) uses masm from
the underlying msvc
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/90"&gt;#90&lt;/a&gt;: remove useless lines in Jamfile.v2
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/91"&gt;#91&lt;/a&gt;: add .file section for *_elf_gas.S files
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/core/"&gt;Core&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Implemented &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;empty_value&lt;/span&gt;&lt;/code&gt;,
for library authors to conveniently leverage the Empty Base Optimization
to store objects of potentially empty types (Glen Fernandes). This
facility is now used in Boost.Beast, Boost.CircularBuffer, Boost.MultiArray,
and more.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Implemented &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;quick_exit&lt;/span&gt;&lt;/code&gt;
to provide the C++11 standard library facility &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;quick_exit&lt;/span&gt;&lt;/code&gt;
functionality (Peter Dimov).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Reduced the number of statics in Lightweight Test, and employ lighter
abort behavior for MSVC compilers upon failure to call &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;report_errors&lt;/span&gt;&lt;/code&gt; (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/dll/"&gt;DLL&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Resolved link issues with the smart library &lt;a href="https://github.com/boostorg/dll/issues/20"&gt;#20&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Maintenance: fixes for docs and tests.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/dynamic_bitset/"&gt;Dynamic Bitset&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Performance improvements (over 2x in some cases). (&lt;a href="https://github.com/boostorg/dynamic_bitset/pull/26"&gt;PR#26&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added range-based set, reset, flip methods (&lt;a href="https://github.com/boostorg/dynamic_bitset/pull/27"&gt;PR#27&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/fiber/"&gt;Fiber&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/181"&gt;#181&lt;/a&gt;: unbuffered_channel push not return
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/182"&gt;#182&lt;/a&gt;: Remove UTF-8 BOM at begining of the file
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/183"&gt;#183&lt;/a&gt;: Fix boost-install use; should only be issued once
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/filesystem/"&gt;Filesystem&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Don't use &lt;code&gt;&lt;span class="identifier"&gt;readdir_r&lt;/span&gt;&lt;/code&gt;
on Linux and Android since the &lt;code&gt;&lt;span class="identifier"&gt;readdir&lt;/span&gt;&lt;/code&gt;
function is already thread-safe. (&lt;a href="https://github.com/boostorg/filesystem/pull/68"&gt;PR#68&lt;/a&gt;, &lt;a href="https://github.com/boostorg/filesystem/issues/72"&gt;#72&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed crashes in &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;filesystem&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;copy&lt;/span&gt;&lt;/code&gt;
due to undefined behavior in the implementation. (&lt;a href="https://github.com/boostorg/filesystem/pull/71"&gt;PR#71&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed undefined behavior in &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;filesystem&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;directory_iterator&lt;/span&gt;&lt;/code&gt;
implementation. (&lt;a href="https://github.com/boostorg/filesystem/pull/77"&gt;PR#77&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed compilation errors when using directory iterators with &lt;code&gt;&lt;span class="identifier"&gt;BOOST_FOREACH&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed workarounds for older PGI C++ compiler versions to fix compilation
on the newer ones. (&lt;a href="https://github.com/boostorg/filesystem/pull/49"&gt;PR#49&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed MSVC warnings about narrowing conversions. (&lt;a href="https://github.com/boostorg/filesystem/pull/44"&gt;PR#44&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/flyweight/index.html"&gt;Flyweight&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed some issues in GCC related to Boost.MPL placeholder expression
handling.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Maintenance fixes.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/function/"&gt;Function&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Removed dependencies on mpl, test (&lt;a href="https://github.com/boostorg/function/pull/20"&gt;PR#20&lt;/a&gt;) (&lt;a href="https://github.com/boostorg/function/pull/22"&gt;PR#22&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/geometry/"&gt;Geometry&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Improvements
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/486"&gt;PR#486&lt;/a&gt; Karney's solution of direct geodesic problem
for internal use (thanks to Adeel Ahmad).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/490"&gt;PR#490&lt;/a&gt; Discrete Frechet and Hausdorff distance algorithms
(thanks to Yaghyavardhan Singh Khangarot).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/496"&gt;PR#496&lt;/a&gt; New run-time and upgraded compile-time SRS
transformation interfaces (undocumented for now due to potential
interface changes).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Solved issues
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/520"&gt;#520&lt;/a&gt; Missing documentation for dsv().
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/521"&gt;#521&lt;/a&gt; Wrong documentation description for distance().
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/524"&gt;#524&lt;/a&gt; Fixed 'enumeration values not handled in switch'
warnings.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/527"&gt;#527&lt;/a&gt; Workaround for VS 2017 (msvc-15).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Bugfixes
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/505"&gt;PR#505&lt;/a&gt; Fixed overflow in overlay algorithms (thanks
to Dane Springmeyer).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/518"&gt;PR#518&lt;/a&gt; Fixed passing of temporaries in append() (thanks
to xventura81).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/522"&gt;PR#522&lt;/a&gt; Support python3 in building documentation.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/integer/"&gt;Integer&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;pending&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;integer_log2&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt; header is deprecated and will
be removed in future releases. Use &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;integer&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;integer_log2&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;
instead.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/iostreams/"&gt;Iostreams&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Remove call to nonexistent member seekpos() of std::fpos (&lt;a href="https://github.com/boostorg/iostreams/pull/58"&gt;PR#58&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/iterator/"&gt;Iterator&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed compilation problems with ambiguous unqualified calls to &lt;code&gt;&lt;span class="identifier"&gt;advance&lt;/span&gt;&lt;/code&gt; and &lt;code&gt;&lt;span class="identifier"&gt;distance&lt;/span&gt;&lt;/code&gt;
on iterators whose types involve types in the namespace &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;/code&gt;. (&lt;a href="https://github.com/boostorg/iterator/issues/43"&gt;#43&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/lexical_cast/"&gt;LexicalCast&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed sign-conversion warnings &lt;a href="https://svn.boost.org/trac/boost/ticket/8991"&gt;#8991&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Maintenance: dropped some dependencies on other Boost libraries,
fixed build system warnings.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/log/"&gt;Log&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
General changes:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Updated syslog sink backend to avoid using deprecated Boost.ASIO
interfaces. (&lt;a href="https://github.com/boostorg/log/issues/59"&gt;#59&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Bug fixes:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a possible incorrect estimation of the total size of
rotated files in the target directory of a text file sink in
some cases.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
See &lt;a href="https://www.boost.org/libs/log/doc/html/log/changelog.html"&gt;changelog&lt;/a&gt;
for more details.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/logic/"&gt;Logic&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;strong&gt;Breaking change:&lt;/strong&gt; Use explicit operator
bool when available (&lt;a href="https://github.com/boostorg/logic/pull/5"&gt;PR#5&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/math/"&gt;Math&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Add LambertW functions.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Update integration routines to support complex valued integrands
and contour integrals.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added the derivative of the Barycentric rational approximation.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Minor fixes to better support variable precision floating point types.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed use of deprecated Boost.Endian in favour of Predef.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Updated continued fraction and series evaluation code to support
complex types.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Prevent logic error leading to infinite loop in toms748_solve. See
&lt;a href="https://github.com/boostorg/math/issues/138"&gt;#138&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix mean and standard_deviation for extreme_value_distribution. See
&lt;a href="https://github.com/boostorg/math/issues/139"&gt;#139&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improve heuristics used in newton_raphson_iterate. See &lt;a href="https://github.com/boostorg/math/issues/145"&gt;#145&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix result of &lt;code&gt;&lt;span class="identifier"&gt;erf&lt;/span&gt;&lt;span class="special"&gt;(&lt;/span&gt;&lt;span class="identifier"&gt;NaN&lt;/span&gt;&lt;span class="special"&gt;)&lt;/span&gt;&lt;/code&gt;. See &lt;a href="https://github.com/boostorg/math/issues/141 #141"&gt;#141 #141&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Big push to reduce GCC warnings. See &lt;a href="https://github.com/boostorg/math/issues/136 #136"&gt;#136 #136&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Refactor polynomial addition. See &lt;a href="https://github.com/boostorg/math/pull/132"&gt;PR#132&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix for vxWorks having a &lt;code&gt;&lt;span class="identifier"&gt;real&lt;/span&gt;&lt;/code&gt;
function in the global namespace. See &lt;a href="https://github.com/boostorg/math/pull/131"&gt;PR#131&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improve &lt;code&gt;&lt;span class="identifier"&gt;sinc&lt;/span&gt;&lt;/code&gt; approximations
and add better tests.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix typo in Student's T hypothesis testing documentation, see &lt;a href="https://github.com/boostorg/math/issues/143"&gt;#143&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/mp11/"&gt;Mp11&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Implemented the &lt;code&gt;&lt;span class="identifier"&gt;mp_starts_with&lt;/span&gt;&lt;/code&gt;
facility (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multi_array/"&gt;MultiArray&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Improve C++11 allocator model support including: Support for C++11
minimal allocators, support for stateful allocators, using the allocator
for construction and destruction of the value type, and using the
empty base optimization for storing empty or stateless allocators
(Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multi_index/"&gt;Multi-index Containers&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Introduced an alternative &lt;a href="https://www.boost.org/libs/multi_index/doc/tutorial/key_extraction.html#key"&gt;terse
key specification syntax&lt;/a&gt; for C++17 compliant environments.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multiprecision/"&gt;Multiprecision&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Big update to better support variable precision types so that the
precision of the result is always the largest of all the arguments.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add support for allocators that are &lt;code&gt;&lt;span class="identifier"&gt;final&lt;/span&gt;&lt;/code&gt;
in __cpp_int (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed use of deprecated Boost.Endian in favour of Predef.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add support for &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string_view&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed minor bug in constant initialization. See &lt;a href="https://github.com/boostorg/multiprecision/issues/67"&gt;#67&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Make assignment of non-finite value to &lt;code&gt;&lt;span class="identifier"&gt;cpp_int&lt;/span&gt;&lt;/code&gt;
a runtime errors. See &lt;a href="https://github.com/boostorg/multiprecision/issues/58"&gt;#58&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added typedefs for &lt;code&gt;&lt;span class="identifier"&gt;cpp_bin_float_oct&lt;/span&gt;&lt;/code&gt;
and &lt;code&gt;&lt;span class="identifier"&gt;cpp_complex_oct&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/poly_collection/"&gt;PolyCollection&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added Boost.PolyCollection-specific versions of algorithms &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;for_each_n&lt;/span&gt;&lt;/code&gt; and &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;sample&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/pool/"&gt;Pool&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Replace boost::mutex use to avoid a dependency on Boost.Thread (&lt;a href="https://github.com/boostorg/pool/pull/23"&gt;PR#23&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/preprocessor/"&gt;Preprocessor&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Supports the new C++ standard conforming preprocessor in VC++ 14.1,
which is currently enabled by using the /experimental:preprocessor
switch, in Visual Studio 2017 15.8 on up.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/rational/"&gt;Rational&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Add constexpr support (&lt;a href="https://github.com/boostorg/rational/pull/28"&gt;PR#28&lt;/a&gt;) (&lt;a href="https://github.com/boostorg/rational/pull/32"&gt;PR#32&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/spirit/"&gt;Spirit&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Spirit.X3:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Drop own FP routines in favor of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;math&lt;/span&gt;&lt;/code&gt;
(&lt;a href="https://github.com/boostorg/spirit/issues/392"&gt;#392&lt;/a&gt;) (&lt;a href="https://svn.boost.org/trac/boost/ticket/13531"&gt;#13531&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Missing visibility mark on exception types (&lt;a href="https://github.com/boostorg/spirit/issues/409"&gt;#409&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
to_utf8: Fixed wchar_t handling on Windows (&lt;a href="https://github.com/boostorg/spirit/issues/413"&gt;#413&lt;/a&gt;)
(&lt;a href="https://github.com/boostorg/spirit/issues/395"&gt;#395&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Spirit V2
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Drop own FP routines in favor of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;math&lt;/span&gt;&lt;/code&gt;
(&lt;a href="https://github.com/boostorg/spirit/issues/392"&gt;#392&lt;/a&gt;) (&lt;a href="https://svn.boost.org/trac/boost/ticket/13531"&gt;#13531&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Missing visibility mark on exception types (&lt;a href="https://github.com/boostorg/spirit/issues/409"&gt;#409&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed transform_attribute ambiguity (&lt;a href="https://github.com/boostorg/spirit/issues/407"&gt;#407&lt;/a&gt;) (&lt;a href="https://github.com/boostorg/spirit/issues/396"&gt;#396&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
to_utf8: Fixed wchar_t handling on Windows (&lt;a href="https://github.com/boostorg/spirit/issues/413"&gt;#413&lt;/a&gt;)
(&lt;a href="https://github.com/boostorg/spirit/issues/395"&gt;#395&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Spirit.Classic:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Missing visibility mark on exception types (&lt;a href="https://github.com/boostorg/spirit/issues/409"&gt;#409&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/stacktrace/"&gt;Stacktrace&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;libbacktrace&lt;/span&gt;&lt;/code&gt; usage
was significantly improved. &lt;code&gt;&lt;span class="identifier"&gt;BOOST_STACKTRACE_USE_BACKTRACE&lt;/span&gt;&lt;/code&gt;
or &lt;code&gt;&lt;span class="identifier"&gt;boost_stacktrace_backtrace&lt;/span&gt;&lt;/code&gt;
users are encouraged to update:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Memory consumprion dropped down.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Stack capturing became faster by an order of magnitude.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;syminfo&lt;/span&gt;&lt;/code&gt; fallback
enabled to provide information for visible symbols even without
debug information (thanks to github user driesdeschout!)&lt;a href="https://github.com/boostorg/stacktrace/issues/60"&gt;#60&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/stacktrace/issues/61"&gt;#61&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Exact location of the &lt;code&gt;&lt;span class="identifier"&gt;backtrace&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;h&lt;/span&gt;&lt;/code&gt;
header now can be specified via &lt;code&gt;&lt;span class="identifier"&gt;BOOST_STACKTRACE_BACKTRACE_INCLUDE_FILE&lt;/span&gt;&lt;/code&gt;,
to allow &lt;code&gt;&lt;span class="identifier"&gt;backtrace&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;h&lt;/span&gt;&lt;/code&gt;
header usage on platforms and compilers where that header is
unreachable otherwise (for example Ubuntu Xenial + Clang) &lt;a href="https://github.com/boostorg/stacktrace/issues/59"&gt;#59&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Optimized stack capturing if &lt;code&gt;&lt;span class="identifier"&gt;max_depth&lt;/span&gt;&lt;/code&gt;
is set (thanks to Jan Eisenhauer for the PR!) &lt;a href="https://github.com/boostorg/stacktrace/issues/67"&gt;#67&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added &lt;code&gt;&lt;span class="identifier"&gt;to_string&lt;/span&gt;&lt;span class="special"&gt;(&lt;/span&gt;&lt;span class="keyword"&gt;const&lt;/span&gt; &lt;span class="identifier"&gt;stacktrace&lt;/span&gt;&lt;span class="special"&gt;&amp;amp;&lt;/span&gt; &lt;span class="special"&gt;)&lt;/span&gt;&lt;/code&gt;
functions for fast conversion of stacktraces to &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;string&lt;/span&gt;&lt;/code&gt;
&lt;a href="https://github.com/boostorg/stacktrace/issues/57"&gt;#57&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Maintenance: updated docs &lt;a href="https://github.com/boostorg/stacktrace/issues/62"&gt;#62&lt;/a&gt;, tests updated.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/system/"&gt;System&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Boost.System is now header-only. A stub library is still built for
compatibility, but linking to it is no longer necessary.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Even more functions have been marked &lt;code&gt;&lt;span class="keyword"&gt;constexpr&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The destructor of &lt;code&gt;&lt;span class="identifier"&gt;error_category&lt;/span&gt;&lt;/code&gt;
is now &lt;code&gt;&lt;span class="keyword"&gt;protected&lt;/span&gt;&lt;/code&gt; and
no longer &lt;code&gt;&lt;span class="keyword"&gt;virtual&lt;/span&gt;&lt;/code&gt;. This
is a potentially breaking change, but its impact is expected to be
limited.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;error_category&lt;/span&gt;&lt;/code&gt; now
has a constructor that accepts a 64 bit identifier, enabling distinct
category objects to compare equal.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The constructors of &lt;code&gt;&lt;span class="identifier"&gt;error_category&lt;/span&gt;&lt;/code&gt;
are now &lt;code&gt;&lt;span class="keyword"&gt;protected&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
A non-allocating, nonthrowing overload of &lt;code&gt;&lt;span class="identifier"&gt;message&lt;/span&gt;&lt;/code&gt;
has been added.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
A virtual function &lt;code&gt;&lt;span class="identifier"&gt;failed&lt;/span&gt;&lt;/code&gt;
has been added, allowing categories for which success is not synonymous
with 0.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The deprecated &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;system&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;throws&lt;/span&gt;&lt;/code&gt;
object has been removed.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;throws&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt;
is now deprecated and its use is discouraged.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The constructor of &lt;code&gt;&lt;span class="identifier"&gt;system_error&lt;/span&gt;&lt;/code&gt;
taking a single &lt;code&gt;&lt;span class="identifier"&gt;error_code&lt;/span&gt;&lt;/code&gt;
argument is now &lt;code&gt;&lt;span class="keyword"&gt;explicit&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;system_error&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;code&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt;
now returns by value.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/test/"&gt;Test&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Boost.test v3.9 see the &lt;a href="https://www.boost.org/users/history/libs/test/doc/html/boost_test/change_log.html"&gt;Changes
log&lt;/a&gt; for more details.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
New feature:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Official support of header-only variant of Boost.Test with
multiple translation units.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Now possible to manually add a test case by specifying its
name, with &lt;code&gt;&lt;span class="identifier"&gt;BOOST_TEST_CASE_NAME&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Better support of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;exception&lt;/span&gt;&lt;/code&gt;
in the logs
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Bug fixes and pull requests:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Trac tickets: &lt;a href="https://svn.boost.org/trac/boost/ticket/13380"&gt;#13380&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/13625"&gt;#13625&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/13637"&gt;#13637&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GitHub Issues: &lt;a href="https://github.com/boostorg/test/issues/149"&gt;#149&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/150"&gt;#150&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/156"&gt;#156&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/issues/158"&gt;#158&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/issues/163"&gt;#163&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GitHub Pull Requests: &lt;a href="https://github.com/boostorg/test/pull/147"&gt;PR#147&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/148"&gt;PR#148&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/151"&gt;PR#151&lt;/a&gt;,
&lt;a href="https://github.com/boostorg/test/pull/154"&gt;PR#154&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/161"&gt;PR#161&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/type_index/"&gt;TypeIndex&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fix the regression and speed up parsing of the &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;type_traits&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;/code&gt;
header by 30% (thanks to Nikita Kniazev for the PR!) &lt;a href="https://github.com/boostorg/type_index/issues/21"&gt;#21&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/utility/"&gt;Utility&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added support for non-inheritable empty types to &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;compressed_pair&lt;/span&gt;&lt;/code&gt;
by avoiding the empty base optimization for types which are declared
as final (Glen Fernandes).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/variant/"&gt;Variant&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed issue with visibility. Now &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;bad_visit&lt;/span&gt;&lt;/code&gt;
exception could cross the boundaries of shared library with hidden
visibility and could be catched in other shared library with hidden
visibility.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/yap/"&gt;YAP&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Minor changes to support MSVC++ version 14.15 (Visual Studio 2017
version 15.8).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Doc fixes.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_69_0.discontinued_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Discontinued Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Signals (v1) is now removed. Its removal was announced in 1.68 and its
deprecation was announced in 1.54. Boost 1.68 is the last release that
provides this library. Users are encouraged to use Signals2 instead. The
Boost community thanks Douglas Gregor for his work on Signals which served
its users well and which also inspired Signals2.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_69_0.compilers_tested"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Compilers Tested&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Boost's primary test compilers are:
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Linux:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 3.0, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++0x: 3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2,
6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++17: 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 4.4.7, 4.5.3, 4.6.3, 5.4.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.4.7
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.4.0, 5.5.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Intel, C++14: 18.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
OS X:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++11: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++14: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++17: 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++1z: 9.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++2a: 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.6.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
FreeBSD:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++1z: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Boost's additional test compilers include:
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Linux:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 3.0, 3.8.1, 3.9.1, 4.0.1, 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++0x: 3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2,
6.0.1, 7.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++17: 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 4.4.7, 4.5.3, 4.6.3, 4.9.4, 5.4.0, 5.5.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.4.7
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.4.0, 5.5.0, 6.3.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1, 8.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Intel, C++14: 18.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
OS X:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++11: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++14: 9.0.0, 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++17: 9.1.0, 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++1z: 9.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++2a: 10.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.6.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
FreeBSD:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++1z: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_69_0.acknowledgements"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Acknowledgements&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Daniel James, Vladimir Prus, Marshall Clow and Michael Caisse managed this
release.
&lt;/p&gt;
&lt;/div&gt;
</description></item><item><title>Version 1.68.0</title><link>https://www.boost.org/users/history/version_1_68_0.html</link><guid>https://www.boost.org/users/history/version_1_68_0.html</guid><pubDate>Thu, 09 Aug 2018 03:46:16 +0000</pubDate><description>
&lt;div id="version_1_68_0.notes_for_windows_users"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Notes for Windows
users&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Boost.WinAPI has been updated to target Windows 7 by default, where possible.
In previous releases Windows Vista was the default.
&lt;/p&gt;
&lt;p&gt;
Boost.WinAPI is used internally as the Windows SDK abstraction layer in a number
of Boost libraries, including Boost.Beast, Boost.Chrono, Boost.DateTime, Boost.Dll,
Boost.Log, Boost.Process, Boost.Stacktrace, Boost.System, Boost.Thread and
Boost.UUID. To select the target Windows version define &lt;code&gt;&lt;span class="identifier"&gt;BOOST_USE_WINAPI_VERSION&lt;/span&gt;&lt;/code&gt;
to the numeric version similar to &lt;code&gt;&lt;span class="identifier"&gt;_WIN32_WINNT&lt;/span&gt;&lt;/code&gt;
while compiling Boost and user's code. For example:
&lt;/p&gt;
&lt;pre&gt; b2 release define=BOOST_USE_WINAPI_VERSION=0x0501 stage
&lt;/pre&gt;
&lt;p&gt;
The list of Windows API version numbers can be seen on &lt;a href="https://msdn.microsoft.com/en-us/library/6sehtctf.aspx"&gt;this&lt;/a&gt;
page.
&lt;/p&gt;
&lt;/div&gt;
&lt;div id="version_1_68_0.new_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;New Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/yap/"&gt;YAP&lt;/a&gt;:&lt;/span&gt; An expression template library
for C++14 and later, from Zach Laine.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_68_0.updated_libraries"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Updated Libraries&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/beast/"&gt;Beast&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
This version fixes a missing executor work guard in all composed
operations used in the implementation. Users who are experiencing
crashes related to asynchronous completion handlers are encouraged
to upgrade.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
For a complete list of changes, please view the official &lt;a href="https://www.boost.org/libs/beast/doc/html/beast/release_notes.html"&gt;Release
Notes&lt;/a&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/context/"&gt;Context&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/context/issues/78"&gt;#78&lt;/a&gt;: Linker error with &lt;code&gt;&lt;span class="identifier"&gt;context&lt;/span&gt;&lt;span class="special"&gt;-&lt;/span&gt;&lt;span class="identifier"&gt;impl&lt;/span&gt;&lt;span class="special"&gt;=&lt;/span&gt;&lt;span class="identifier"&gt;ucontext&lt;/span&gt;&lt;/code&gt;:
multiple definition of &lt;code&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;context&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;detail&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;current_rec&lt;/span&gt;&lt;/code&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/coroutine2/"&gt;Coroutine2&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/coroutine2/issues/14"&gt;#14&lt;/a&gt;: crash while stack unwinding
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/coroutine2/issues/18"&gt;#18&lt;/a&gt;: some guidance on why to use coroutine2
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/coroutine2/issues/20"&gt;#20&lt;/a&gt;: failes to compile test in due to the error C2039
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/coroutine2/issues/22"&gt;#22&lt;/a&gt;: undefined behaviour documentation
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/fiber/"&gt;Fiber&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/170"&gt;#170&lt;/a&gt;: buffered_channel::try_push has incorrect documentation
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/172: WIN64"&gt;#172: WIN64&lt;/a&gt;: 'invalid conversion from 'HANDLE' to
'std::thread::native_handle_type' errors for builds using mingw-w64
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/fiber/issues/175"&gt;#175&lt;/a&gt;: throw exception "Operation not permitted"
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
NUMA support moved to extra library (fiber-numa); enabled via property
numa (numa=on)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/fusion/"&gt;Fusion&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added a workaround for ambiguous call of &lt;code&gt;&lt;span class="identifier"&gt;fusion&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;deque&lt;/span&gt;&lt;/code&gt;
constructor on GCC 4.4/c++0x (&lt;a href="https://github.com/boostorg/fusion/pull/178"&gt;PR#178&lt;/a&gt;, &lt;a href="https://github.com/boostorg/fusion/pull/178/commits/9de32721749b635ff3e04e690da89cf06602c122"&gt;commit&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a bug with C-style array (&lt;a href="https://github.com/boostorg/fusion/pull/177"&gt;PR#177&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a &lt;code&gt;&lt;span class="identifier"&gt;fusion&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;for_each&lt;/span&gt;&lt;/code&gt; signature to take functor
by value (&lt;a href="https://svn.boost.org/trac/boost/ticket/4427"&gt;#4427&lt;/a&gt;).
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
This may break existing code with non-copyable (non-movable)
functor, but the implementation wasn't correct for a long time;
the documantation was correct from the first. So, please make
sure your usage.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed unintentional MPL placeholder substitution bug on &lt;code&gt;&lt;span class="identifier"&gt;fusion&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;transform&lt;/span&gt;&lt;/code&gt; (&lt;a href="https://svn.boost.org/trac/boost/ticket/5490"&gt;#5490&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Moved description, how to conform Fusion sequence as MPL sequence,
to mpl section (&lt;a href="https://svn.boost.org/trac/boost/ticket/4029"&gt;#4029&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added notes regarding IO facility for adapted type (&lt;a href="https://svn.boost.org/trac/boost/ticket/6091"&gt;#6091&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/geometry/"&gt;Geometry&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Improvements
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/469"&gt;469&lt;/a&gt;
Horizontal grid shift (nadgrids) in SRS transformations (undocumented
for now due to potential interface changes).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/478"&gt;478&lt;/a&gt;
Box-Segment distance for spherical and geographic coordinate
systems.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/487"&gt;487&lt;/a&gt;
Missing combinations of geometries in distance for spherical
and geographic cs
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/489"&gt;489&lt;/a&gt;
Additional direct geodesic problem formulas for internal use
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Solved issues
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/470"&gt;470&lt;/a&gt;
Assertion failure with short spherical and geographic segments.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/471"&gt;471&lt;/a&gt;
Invalid envelope of spherical polygon
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/498"&gt;498&lt;/a&gt;
Unexpected results with expand() and make_inverse() for spherical
and geographic CS
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/issues/504"&gt;504&lt;/a&gt;
Unused parameter warnings.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Bugfixes
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/488"&gt;488&lt;/a&gt;
Handle non-true-references in closing_iterator and ever_circling_range_iterator
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;a href="https://github.com/boostorg/geometry/pull/495"&gt;495&lt;/a&gt;
VxWorks 7 cross-compilation issue.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/gil/"&gt;GIL&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
The I/O extensions have been entirely rewritten.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
The library now requires a C++11-compliant compiler.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Documentation has been reformatted and updated.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/graph/"&gt;Graph&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Conditionally replace deprecated/removed C++98 &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;bind1st&lt;/span&gt;&lt;/code&gt;
by &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;bind&lt;/span&gt;&lt;/code&gt;, &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;auto_ptr&lt;/span&gt;&lt;/code&gt;
by &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;unique_ptr&lt;/span&gt;&lt;/code&gt;, and &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;random_shuffle&lt;/span&gt;&lt;/code&gt;
by &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;shuffle&lt;/span&gt;&lt;/code&gt;. (&lt;a href="https://github.com/boostorg/graph/pull/89"&gt;PR#89&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix compiler error with release builds on VS2015 (&lt;a href="https://github.com/boostorg/graph/pull/84"&gt;PR#84&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix the Stanford GraphBase examples (&lt;a href="https://github.com/boostorg/graph/pull/87"&gt;PR#87&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix friend declarations for iterator_core_access (&lt;a href="https://github.com/boostorg/graph/pull/103"&gt;PR#103&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add missing &lt;code&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;boost&lt;/span&gt;&lt;span class="special"&gt;/&lt;/span&gt;&lt;span class="identifier"&gt;iterator&lt;/span&gt;&lt;span class="special"&gt;.&lt;/span&gt;&lt;span class="identifier"&gt;hpp&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt; include (&lt;a href="https://github.com/boostorg/graph/pull/104"&gt;PR#104&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Avoid an unused variable warning (&lt;a href="https://github.com/boostorg/graph/pull/90"&gt;PR#90&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix some typos in documentation (&lt;a href="https://github.com/boostorg/graph/pull/88"&gt;PR#88&lt;/a&gt;, &lt;a href="https://github.com/boostorg/graph/pull/98"&gt;PR#98&lt;/a&gt;, &lt;a href="https://github.com/boostorg/graph/pull/102"&gt;PR#102&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix some issues in tests and examples (&lt;a href="https://github.com/boostorg/graph/pull/85"&gt;PR#85&lt;/a&gt;, &lt;a href="https://github.com/boostorg/graph/pull/105"&gt;PR#105&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/lexical_cast/"&gt;Lexical Cast&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixes for clang-tidy warnings &lt;a href="https://svn.boost.org/trac/boost/ticket/12092"&gt;#12092&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/log/"&gt;Log&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Improved support for VxWorks. (&lt;a href="https://github.com/boostorg/log/pull/39"&gt;PR#39&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Save and restore &lt;code&gt;&lt;span class="identifier"&gt;ebx&lt;/span&gt;&lt;/code&gt;
register on x86 PIE targets in the &lt;code&gt;&lt;span class="identifier"&gt;dump&lt;/span&gt;&lt;/code&gt;
stream manipulator implementation.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/math/"&gt;Math&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Support for arbitrary precision complex valued quadrature and hence
contour integration
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improve performance of polynomial addition
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Continue to improve numerical integration routines, and in particular
add support for contour integrals.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Improve accuracy of erfc function's rational approximations.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multi_index/index.html"&gt;Multi-index Containers&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Containers of moveable but non-copyable elements can now be serialized
(ticket &lt;a href="https://svn.boost.org/trac/boost/ticket/13478"&gt;#13478&lt;/a&gt;). Thanks to Sébastien Paris for the report.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;code&gt;&lt;span class="identifier"&gt;multi_index_container&lt;/span&gt;&lt;/code&gt;'s
default constructor is no longer &lt;code&gt;&lt;span class="keyword"&gt;explicit&lt;/span&gt;&lt;/code&gt;
(ticket &lt;a href="https://svn.boost.org/trac/boost/ticket/13518"&gt;#13518&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/multiprecision"&gt;Multiprecision&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Support added for complex multiprecision numbers.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Changed conversion to unsigned integer types to be truncating to
match standard defined behaviour.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Correct bug in MPFR string formatting.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix undefined behaviour in cpp_dec_float conversion from long long.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add support for Eigen interoperability.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
float128.hpp: Fix Intel on Windows build.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix type used in temporaries when expanding expression templates
containing mixed expressions.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix infinite loop in gmp_float to fixed-point string conversion.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Update the expression templates to issue static_asserts with better
error messages when you try and do something unsupported.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix bug in cpp_int where incrementing to zero doesn't set the sign
correctly.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Remove erroneous use of std::move, and rely on NVRO instead.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix up support for changes to MPIR-3.0.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix various conversion errors in cpp_bin_float when the exponent
type is a &lt;code&gt;&lt;span class="keyword"&gt;long&lt;/span&gt; &lt;span class="keyword"&gt;long&lt;/span&gt;&lt;/code&gt;,
or else we're converting to an integer that is wider than we are.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fix compatibility issue with GCC-8 caused by the introduction of
&lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;byte&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/optional/"&gt;Optional&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Added member function &lt;code&gt;&lt;span class="identifier"&gt;has_value&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; for compatibility with &lt;code&gt;&lt;span class="identifier"&gt;std&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;optional&lt;/span&gt;&lt;/code&gt; (&lt;a href="https://github.com/boostorg/optional/issues/52"&gt;issue
#52&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added member function &lt;code&gt;&lt;span class="identifier"&gt;map&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; for transforming &lt;code&gt;&lt;span class="identifier"&gt;optional&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt;
into &lt;code&gt;&lt;span class="identifier"&gt;optional&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;U&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt;
using a function of type &lt;code&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;
&lt;span class="special"&gt;-&amp;gt;&lt;/span&gt; &lt;span class="identifier"&gt;U&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added member function &lt;code&gt;&lt;span class="identifier"&gt;flat_map&lt;/span&gt;&lt;span class="special"&gt;()&lt;/span&gt;&lt;/code&gt; for transforming &lt;code&gt;&lt;span class="identifier"&gt;optional&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt;
into &lt;code&gt;&lt;span class="identifier"&gt;optional&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;U&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt;
using a function of type &lt;code&gt;&lt;span class="identifier"&gt;T&lt;/span&gt;
&lt;span class="special"&gt;-&amp;gt;&lt;/span&gt; &lt;span class="identifier"&gt;optonal&lt;/span&gt;&lt;span class="special"&gt;&amp;lt;&lt;/span&gt;&lt;span class="identifier"&gt;U&lt;/span&gt;&lt;span class="special"&gt;&amp;gt;&lt;/span&gt;&lt;/code&gt;.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/predef/"&gt;Predef&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Add support for __ARM_ARCH macro. (from Tim Blechmann)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add detection for PTX architecture. (from Benjamin Worpitz)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add nvcc compiler detection. (from Benjamin Worpitz)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Add support for detecting CUDA. (from Benjamin Worpitz)
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Remove reference to obsolete BOOST_ARCH_AMD64. (from Peter Kolbus)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/program_options/"&gt;Program Options&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Support for multiple long names for an option, thanks to Eyal Rozenberg
(&lt;a href="https://github.com/boostorg/program_options/pull/53"&gt;PR#53&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/python/"&gt;Python&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Bug fixes to correct autolink support (Windows) (&lt;a href="https://github.com/boostorg/python/issues/193"&gt;#193&lt;/a&gt;)
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/rational/"&gt;Rational&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed undefined behavior in normalize() (&lt;a href="https://github.com/boostorg/rational/pull/19"&gt;PR#19&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/system/"&gt;System&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Add constexpr to error_code and error_condition members under C++14
and above (&lt;a href="https://github.com/boostorg/system/pull/23"&gt;PR#23&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/signals/"&gt;Signals&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;strong&gt;Removal Notice:&lt;/strong&gt; Boost.Signals will
be removed in the next release. Boost.Signals was deprecated in version
1.54.0. Transition to Boost.Signals2 now to avoid disruption.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/spirit/"&gt;Spirit&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Spirit.X3:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Small list parser optimization (&lt;a href="https://github.com/boostorg/spirit/pull/368"&gt;PR#368&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Pass container attributes through sequence parser or unary
ending down to a sequence parser (&lt;a href="https://github.com/boostorg/spirit/pull/370"&gt;PR#370&lt;/a&gt; &lt;a href="https://svn.boost.org/trac/boost/ticket/12085"&gt;#12085&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
More fine grained sequence attribute check message (&lt;a href="https://github.com/boostorg/spirit/pull/371"&gt;PR#371&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed redundant check in &lt;code&gt;&lt;span class="identifier"&gt;skip_over&lt;/span&gt;&lt;/code&gt;
(&lt;a href="https://github.com/boostorg/spirit/pull/373"&gt;PR#373&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Workaround constexpr in noexcept VS2015 bug in entire &lt;code&gt;&lt;span class="identifier"&gt;x3&lt;/span&gt;&lt;span class="special"&gt;::&lt;/span&gt;&lt;span class="identifier"&gt;variant&lt;/span&gt;&lt;/code&gt; (&lt;a href="https://github.com/boostorg/spirit/pull/379"&gt;PR#379&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed calc4b example compilation (&lt;a href="https://github.com/boostorg/spirit/pull/384"&gt;PR#384&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Minor code improvements (&lt;a href="https://github.com/boostorg/spirit/pull/374"&gt;PR#374&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Spirit.Qi:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed ADT support by permutation and sequence_or operator (&lt;a href="https://github.com/boostorg/spirit/pull/376"&gt;PR#376&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Specialize iterator_source for random access (&lt;a href="https://github.com/boostorg/spirit/pull/383"&gt;PR#383&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Removed redundant check in &lt;code&gt;&lt;span class="identifier"&gt;skip_over&lt;/span&gt;&lt;/code&gt;
(&lt;a href="https://github.com/boostorg/spirit/pull/373"&gt;PR#373&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Spirit.Karma:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed UB in &lt;code&gt;&lt;span class="identifier"&gt;get_absolute_value&lt;/span&gt;&lt;/code&gt;
function (&lt;a href="https://github.com/boostorg/spirit/pull/246"&gt;PR#246&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Fixed use after scope bug if ADT getter returns by value (&lt;a href="https://github.com/boostorg/spirit/pull/375"&gt;PR#375&lt;/a&gt; &lt;a href="https://svn.boost.org/trac/boost/ticket/6126"&gt;#6126&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Spirit.Classic:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed a regression introduced in &lt;a href="https://github.com/boostorg/spirit/pull/336"&gt;PR#336&lt;/a&gt; (&lt;a href="https://github.com/boostorg/spirit/pull/386"&gt;PR#386&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Minor code improvements (&lt;a href="https://github.com/boostorg/spirit/pull/367"&gt;PR#367&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/stacktrace/"&gt;Stacktrace&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Fixed compilation on Solaris and other platforms that do qualify
address as const in &lt;code&gt;&lt;span class="identifier"&gt;dladdr&lt;/span&gt;&lt;/code&gt;
function (github 54).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Dropped dependency on Boost.LexicalCast.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/test/"&gt;Test&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Boost.test v3.8 see the &lt;a href="https://www.boost.org/users/history/libs/test/doc/html/boost_test/change_log.html"&gt;Changes
log&lt;/a&gt; for more details.
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Breaking changes
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
The &lt;code&gt;&lt;span class="identifier"&gt;master_test_suite_t&lt;/span&gt;&lt;/code&gt;
object is no more copyable
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
New feature:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Dataset test case can now use command line parameters
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Bug fixes and pull requests:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Trac tickets: &lt;a href="https://svn.boost.org/trac/boost/ticket/12095"&gt;#12095&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/12953"&gt;#12953&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/13504"&gt;#13504&lt;/a&gt;, &lt;a href="https://svn.boost.org/trac/boost/ticket/13525"&gt;#13525&lt;/a&gt;,
&lt;a href="https://svn.boost.org/trac/boost/ticket/13528"&gt;#13528&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Pull requests: &lt;a href="https://github.com/boostorg/test/pull/143"&gt;PR#143&lt;/a&gt;, &lt;a href="https://github.com/boostorg/test/pull/145"&gt;PR#145&lt;/a&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/type_index/"&gt;TypeIndex&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Dropped dependency on Boost.MPL.
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
&lt;span class="library"&gt;&lt;a href="https://www.boost.org/libs/uuid/"&gt;Uuid&lt;/a&gt;:&lt;/span&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
&lt;strong&gt;Breaking change:&lt;/strong&gt; sha1 detail namespace
header redirection for backwards compatibility was removed (&lt;a href="https://github.com/boostorg/uuid/pull/69"&gt;PR#69&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added support for std::hash (&lt;a href="https://github.com/boostorg/uuid/pull/67"&gt;PR#67&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Added support for move semantics on random generators (&lt;a href="https://github.com/boostorg/uuid/pull/74"&gt;PR#74&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Properly handle EINTR when acquiring entropy (&lt;a href="https://github.com/boostorg/uuid/pull/74"&gt;PR#74&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Use getrandom(2) instead of getentropy(3) on linux (&lt;a href="https://github.com/boostorg/uuid/pull/75"&gt;PR#75&lt;/a&gt;).
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_68_0.compilers_tested"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Compilers Tested&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Boost's primary test compilers are:
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Linux:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 3.0, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++0x: 3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2,
6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++17: 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 4.4.7, 4.5.3, 4.6.3, 5.4.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.4.7
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.4.0, 5.5.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Intel, C++14: 18.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
OS X:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang: 9.0.0, 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++11: 9.0.0, 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++14: 9.0.0, 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++17: 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++1z: 9.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.6.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
FreeBSD:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++1z: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Boost's additional test compilers include:
&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Linux:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 3.0, 3.8.1, 3.9.1, 4.0.1, 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++0x: 3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2,
6.0.1, 7.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++17: 5.0.2, 6.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 4.4.7, 4.5.3, 4.6.3, 4.9.4, 5.4.0, 5.5.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.4.7
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.4.0, 5.5.0, 6.3.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1, 8.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.3.0, 8.0.1
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Intel, C++14: 18.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
OS X:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang: 9.0.0, 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++11: 9.0.0, 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++14: 9.0.0, 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++17: 9.1.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Apple Clang, C++1z: 9.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Windows:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++0x: 4.6.4
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
FreeBSD:
&lt;ul&gt;
&lt;li&gt;
&lt;div&gt;
Clang: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++11: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++14: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div&gt;
Clang, C++1z: 4.0.0
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div id="version_1_68_0.acknowledgements"&gt;
&lt;h3&gt;&lt;span class="link"&gt;Acknowledgements&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;
Daniel James, Vladimir Prus, and Marshall Clow managed this release.
&lt;/p&gt;
&lt;/div&gt;
</description></item>
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</rss>