Bump to 2.6b3.
diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index 4951b87..5c055d0 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "2.6b2"
+IDLE_VERSION = "2.6b3"