diff --git a/feed/history/boost_1_42_0.qbk b/feed/history/boost_1_42_0.qbk
index 0d63a0fd..bf9e6e3d 100644
--- a/feed/history/boost_1_42_0.qbk
+++ b/feed/history/boost_1_42_0.qbk
@@ -48,6 +48,15 @@
   * Added support for associative iterators and views
     ([@https://svn.boost.org/trac/boost/ticket/3473 #3473]).
 
+* [phrase library..[@/libs/circular_buffer/index.html Circular Buffer]:]
+  * Added methods erase_begin(size_type) and erase_end(size_type) with constant
+    complexity for such types of stored elements which do not need an explicit
+    destruction e.g. int or double.
+  * Similarly changed implementation of the clear() method and the destructor
+    so their complexity is now constant for such types of stored elements which
+    do not require an explicit destruction (the complexity for other types
+    remains linear).
+
 * [phrase library..[@/libs/program_options/index.html Program.Options]:]
   * Information about option name added to a few exception classes and
     various clean ups in exception classes