diff --git a/.hgtags b/.hgtags
index c8957ebc22..fd3302d681 100644
--- a/.hgtags
+++ b/.hgtags
@@ -26,3 +26,4 @@ b2219b80d987970e9bd5dbca89d115933d6bbd6b 5.2.0
 65512e92e48b2d6bacd336fd9c7d5191a671eb0e 6.0.0
 44fa1e6ccdbd48abf82f4585c4ad3a1affe2577f 6.2.0
 960095f1b56e20e419d3e26b94b120c30442fd37 6.4.0
+8c48ba1b900f46af8d936894728337fc4f07daa6 6.6.0