diff --git a/doc/changelog.qbk b/doc/changelog.qbk
index 5d526c8b2..f93081677 100644
--- a/doc/changelog.qbk
+++ b/doc/changelog.qbk
@@ -13,6 +13,7 @@
 
 * C++03 is no longer supported. A C++11 or later compiler is required.
 * When built with C++11 compilers that are conforming enough for Boost.Regex v5 to be used, Boost.Log no longer links with Boost.Regex prebuilt library, since Boost.Regex v5 is header-only.
+* Support for Windows versions older than Windows 10 is deprecated and will be removed in Boost 1.87.
 
 [heading 2.27, Boost 1.83]