Bump to 3.0rc3
diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index fdeb65d..a18c676 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "3.0rc2"
+IDLE_VERSION = "3.0rc3"