diff --git a/.hgtags b/.hgtags
index a0d2c7b3e3..a8de24b5f1 100644
--- a/.hgtags
+++ b/.hgtags
@@ -25,3 +25,4 @@ db3ae458c6a646c028d1220d948fa1de8cd89458 5.8.0
 dc5142b2be24b2b1d667969a1e0debd1762a5bbe 6.0.0
 a6ac57202e8618bff46d03c0145da25cc8a0d7e5 6.2.0
 3d7456c56484c1e8b161f9646e395220b827e364 6.4.0
+46f655ce0c8811128bc2624dfde873aa1ba46d48 6.6.0