diff --git a/Changelog.md b/Changelog.md
index 31a1a86..b203976 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,6 +2,7 @@
 - All changes from 5.13-5.
 - Beginnings of Wine architectural work to reduce CPU overhead and improve performance in scenarios related to input and windowing.
 - Memory allocator performance improvements.
+- Support for futex2 patches in fsync. Requires WINEFSYNC_FUTEX2=1 and a kernel with futex2 patches for testing (/sys/kernel/futex2/wait should be present).
 - Further improvements to Cyberpunk 2077 world sounds.
 - Improvements for non-US keyboard layouts.
 - Better support Anno 1404 - History Edition.