diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -38,3 +38,4 @@ 15c829aa08a2cf65cc074640199e79c5e49d2c93
 1a190b3a757dc650c2c612073cbffaaa720b6090 v1.4.0
 2ccfaae984e9a458580664923c87f258cff9890f v1.4.4
 e9a9ed6d7647848e9c7f28e6e9f92d009259607d v1.5.0
+aac297dda27dac1e86bc93617ba172a2c92415f5 v1.6.0