diff --git a/.hgtags b/.hgtags
index 6447af3..353ea57 100644
--- a/.hgtags
+++ b/.hgtags
@@ -20,3 +20,4 @@ ff671fabec71e85d32395c35c40a125432859e49 1.5
 bca1826148f9ea22a89d9533d19a79ba6678293f 1.6.2
 61b1bc18f258cf2647f4af29c3dfe48d268eeb0b 1.7.0
 374b8e63d93b8743c3dad093bca449e01fdd287f 2.0
+9b641817ffe6be1ff7d34711d203e27c8f3733f8 2.1.0