diff --git a/feed/history/boost_1_66_0.qbk b/feed/history/boost_1_66_0.qbk
index 1609e894..a4da2158 100644
--- a/feed/history/boost_1_66_0.qbk
+++ b/feed/history/boost_1_66_0.qbk
@@ -112,6 +112,10 @@
       * Copy construction crashes if an exception is thrown during element copying.
   * Maintenance fixes.
 
+* [phrase library..[@/libs/stacktrace/ Stacktrace]:]
+  * Now works out-of-the-box on MinGW-w64.
+  * Now works on MinGW (without `-w64`) if `libbacktrace` is properly installed. See "MinGW specific notes" section in documentation for more info.
+
 * [phrase library..[@/libs/utility/ Utility]:]
   * `boost/next_prior.hpp` has been moved to Boost.Iterator. No changes needed to the user's code.
 
@@ -138,6 +142,9 @@
       No changes needed to user's code, however you may get
       build warnings if you use the old header location.
 
+* [phrase library..[@/libs/variant/ Variant]:]
+  * `boost::apply_visitor` now does perfect forwarding of visitables [ticket 6971]. Great thanks to Levon Tarakchyan for implementing this feature.
+
 
 * /TODO/