diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -15,3 +15,4 @@ f5cca33d29c673b67d43f310bebc4e3a21c6d04c
 7f7c33ba6e3f3797ca866c5ed5d358a2393f1371 1.8
 a6b9dd9547bdc17b681502efcceb17aa5c09adf4 1.8.1
 8318fa1615d1946e4519f5735ae880909521990d 2.0
+e23590ee7e2067a3f0fc3cbcfd66404b47127feb 2.1