diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -47,3 +47,4 @@ 7dc62c090881fb5d03268141e71e0940d7c3295d
 9151328c1c46b72ba6f00d7640d9141e75aa1ca2 v4.14.0
 a47eeac5dfa41fa6779d90452affba4091c3ade8 v4.14.1
 4b34ce0d2c3c10510626b3b65044939bb7a2cddf v4.15.0
+14502561d22e6b70613674cd675ae9a604b7989f v4.15.1