diff --git a/.hgtags b/.hgtags
index ecd9df4bd6..d10a11455e 100644
--- a/.hgtags
+++ b/.hgtags
@@ -4,3 +4,4 @@ c32af032295ba1c9c350149fdb72cc75e2f8e879 3.2.0
 a415efe2f8858331918fd21671c10710ea168bf8 3.4.0
 d5eb319f2f8bdb2bcaf48cac085242f2a8938f52 3.6.0
 ecde7f8aea8da31144867dab649e53c2b1c9028c 3.8.0
+d17b4e7a6a24536364a490bee9403f1e7b988c09 4.0.0