Seems like upstream forgot to bump the version,
https://github.com/matplotlib/cycler/issues/80
--- a/cycler.py
+++ b/cycler.py
@@ -46,7 +46,7 @@ from functools import reduce
 from itertools import product, cycle
 from operator import mul, add
 
-__version__ = '0.10.0'
+__version__ = '0.11.0'
 
 
 def _process_keys(left, right):