diff --git a/.hgtags b/.hgtags
index 127d069eac..355ac6c344 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,2 +1,3 @@
 95ee23fdd702508ecfeb5d9945e0a210e7f08b30 3.6.0
 9a91fdfa8c967f8ca81b33c313e448d5874bba82 3.8.0
+92f80379bb92cab562420d9bb6e2b521bee0016e 4.0.0