Bumping to 2.6.6 rc 1
diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index 3c9a8a8..c75a6e0 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "2.6.5"
+IDLE_VERSION = "2.6.6rc1"