diff --git a/.hgtags b/.hgtags
index a070beaa86a..176902c31ea 100644
--- a/.hgtags
+++ b/.hgtags
@@ -169,3 +169,4 @@ cc15d736d860303b9da90d43cd32db39bab048df v3.5.0rc2
 5896da372fb044e38595fb74495de1e1e7c8fb3c v3.6.0a1
 37889342355223e2fc1438de3dc7ffcd625c60f7 v3.6.0a2
 f3edf13dc339b8942ae6b309771ab197dd8ce6fa v3.6.0a3
+017cf260936b444788c9b671d195b7bfd83dbd25 v3.6.0a4