diff --git a/.hgtags b/.hgtags
index 0b56fa2aab..145452c495 100644
--- a/.hgtags
+++ b/.hgtags
@@ -5,3 +5,4 @@ c3046a83c61339a6310b8cf56c2e4dddd59a0675 5.8.0
 0d2662846f667e44e2831a271becf86f8868c9a5 6.0.0
 5a39f9619caf2338d2b86a46f16154a8e29d2830 6.2.0
 b27e5df8f64e7e96c3b895ec7090eb1bb9166eaa 6.4.0
+cd182550e175f7de15c5940fb446d72895f68a31 6.6.0