diff --git a/.hgtags b/.hgtags
index d84c715..9052ae8 100644
--- a/.hgtags
+++ b/.hgtags
@@ -82,3 +82,4 @@
 0000000000000000000000000000000000000000 v2.6.2c1
 01f1ae83631ae82bd8598a11c17e3f9b3f56c38a v2.6.2c1
 4feba09a826ba99e5b482707b3d9643eba34156f v2.6.2
+1873542c00000c4b7ce2c7992d1f2d87f866232a v2.6.3rc1