diff --git a/.hgtags b/.hgtags
index 32d0a13bb4..10df6ac8fc 100644
--- a/.hgtags
+++ b/.hgtags
@@ -26,3 +26,4 @@ d1e67fbb11774d0a7ca3bd5761cf4ea11dbaa4b8 5.8.0
 07499733ef86626acae2c8249ea02eb14ac4990f 6.0.0
 3cdc0696c0f6a6aaf4e767ccfc25971a992340ce 6.2.0
 65d7e83be01e651274bc5eebd98deac8b4afceef 6.4.0
+f83c1c8c757c652767eb7651370f786f0a864e00 6.6.0