+.. _release6.1:
+
+6.1
+---
+* UTCTime and GeneralizedTime allowed values to have plus sign in them,
+ passing int() check successfully. Prohibit that incorrect behaviour
+* UTCTime and GeneralizedTime BER decoding support
+* Faster UTCTime and GeneralizedTime decoding, and slightly better
+ overall performance
+* Workability under Cython
+* Explicitly Check that all ObjectIdentifier arcs are non-negative
+