diff --git a/.hgtags b/.hgtags
index 98e9212..a8b4cec 100644
--- a/.hgtags
+++ b/.hgtags
@@ -19,3 +19,4 @@ d5ad819f2a66a40fa75dd2e44429f3bfc884d07b 1.7.1
 c71952fa3c7ca848ec38a6923b5c6d0e18fff431 1.8
 a5567a0d30112822db2627a04a2e7aa3b6c38148 1.9
 12deea36603da407e3f32640048846a3bd74a9ec 2.0
+a2c465098a3b972bbed00feda9804b6aae1e9531 2.1