diff --git a/.hgtags b/.hgtags
index dbd90c1b10..d3a497f55c 100644
--- a/.hgtags
+++ b/.hgtags
@@ -6,3 +6,4 @@ af1d7afe2dbdeaafc26fda616ecf098d14887b58 3.2.0
 3bcb4736051e02d1c959f00f9596a3532fa5ad29 3.4.0
 5b726b78c63d8b871751ceccfd69725664257976 3.6.0
 6e3eedf09d643d03d1fb3c4f88952bb75408e6c8 3.8.0
+2461b8600bd2f8cb48c817eadd6c7d20d5116862 4.0.0