diff --git a/.hgtags b/.hgtags
new file mode 100644
--- /dev/null
+++ b/.hgtags
@@ -0,0 +1,2 @@
+15b6e6d08e56bc5a507513b6980481b568562376 RTM1
+15b6e6d08e56bc5a507513b6980481b568562376 RTM1