diff --git a/feed/history/boost_1_64_0.qbk b/feed/history/boost_1_64_0.qbk
index a08654ab..1f6657b3 100644
--- a/feed/history/boost_1_64_0.qbk
+++ b/feed/history/boost_1_64_0.qbk
@@ -49,6 +49,11 @@
     * #106: Passing a fixed_stack allocator to async/packaged_task doesn't compile
     * #111: endless-loop in buffered_channel::try_value_pop()
     * (un)bounded_channel<> removed
+    
+* [phrase library..[@/libs/math/ Math]:]
+    * Big push to ensure all functions in also in C99 are compatible with Annex F.
+    * Improved accuracy of the Bessel functions I0, I1, K0 and K1, see [@https://svn.boost.org/trac/boost/ticket/12066 12066].
+
 
 * [phrase library..[@/libs/program_options/ Program Options]:]
   * Support for storing values into `boost::optional`, thanks to Ed Catmur