diff --git a/.hgtags b/.hgtags
index a46d3c89c5..907231b690 100644
--- a/.hgtags
+++ b/.hgtags
@@ -16,3 +16,4 @@ f55c3c6bdd16d4b2ce85c8d691e9cafa71ce3d1f 5.6.0
 71a5bc1d16dc5b2b613ab21d94116f74d3b99320 6.0.0
 c7e966206f80f8ec35d48cada0dbf93603d2ba58 6.2.0
 8326eead85e5b3dbae373141494cf52ac0ee1868 6.4.0
+0e2e8692cf07cdbc798c4ba525b7184633c26635 6.6.0