diff --git a/.hgtags b/.hgtags
index 8cbdc878..04f34190 100644
--- a/.hgtags
+++ b/.hgtags
@@ -32,3 +32,4 @@ a8916fe1f743c7ebc05d83d3ad24a6460915ecac v0.6
 cf1c2f62ac0c8d317b197d462946b836cf4224bc 0.6
 cf1c2f62ac0c8d317b197d462946b836cf4224bc 0.6
 0000000000000000000000000000000000000000 0.6
+1834871191714d4cfd28e5f7d9ed23b876b894f9 0.6-rc1