diff --git a/.hgtags b/.hgtags
index 3bc1cb0172..fe8c215937 100644
--- a/.hgtags
+++ b/.hgtags
@@ -16,3 +16,4 @@ cde43b11b7441f9f04398a64c58eb616f90fcfec 3.8.0
 effb65954b07f8ea832005cd5940fcf3bc3edcbe 4.0.0
 40d72f46b3a56c0bb019553d9e9090c9168c324b 4.2.0
 c7febfab0ce9328cebcd5a848260aeeac7f1c1d2 4.4.0
+66c250d17900e5865cc5185d858832e3f0265f4e 4.6.0