set version to 0.18rc1

diff --git a/Cython/Shadow.py b/Cython/Shadow.py
index 5ee857b..532a101 100644 (file)
--- a/Cython/Shadow.py
+++ b/Cython/Shadow.py
@@ -1,5 +1,5 @@
 # cython.* namespace for pure mode.
-__version__ = "0.18b1"
+__version__ = "0.18rc1"
 
 
 # BEGIN shameless copy from Cython/minivect/minitypes.py