diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -75,3 +75,4 @@ a18445b85d407294da0b7f1d8be3bedef5ffdea6
 da65398a62fff50f3d241796cbf17acdea2092ef 0.4.1
 bfa0b0a814644f0af3f492d17a9ed169cc3b89fe 0.5.0
 d01a8e92936dbd62c76505432f60efba432e9397 0.5.1
+aa0a637fa6f635a5e024fa56b19ed2a2dacca857 0.5.2