diff --git a/.hgtags b/.hgtags
index dfc8dbb..1e440d7 100644
--- a/.hgtags
+++ b/.hgtags
@@ -4,3 +4,5 @@
 5d95f1d75a3226cb117e6b33abc5bdb04e161ef8 0.3
 d30f05a8bb46a2e6c5c61424204a4c8db6365723 0.4
 7a39b84bb002a0938109d705e0faf90d9fd8c424 0.6
+7a39b84bb002a0938109d705e0faf90d9fd8c424 0.6
+0000000000000000000000000000000000000000 0.6