===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-6/changes.html,v
retrieving revision 1.110
retrieving revision 1.111
@@ -46,6 +46,15 @@
for <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71151">PR71151</a>
to work.</li>
+ <li>The GCC 6.5 release has an accidental ABI incompatibility for nested
+ <code>std::pair</code> objects, for more details see
+ <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87822">PR 87822</a>.
+ The bug causes a layout change for pairs where the first member is also
+ a pair, e.g. <code>std::pair<std::pair<X, Y>, Z></code>.
+ The GCC 6 release series is closed so the bug in GCC 6.5 will not be fixed
+ upstream, but there is a patch in the bug report to allow it to be fixed
+ by anybody packaging GCC 6.5 or installing it themselves.</li>
+
</ul>
<!-- .................................................................. -->