+.. _release6.3:
+
+6.3
+---
+* Fixed workability under Python 3.5. Previously only 2.7 and 3.6
+ versions were tested
+
+.. _release6.2:
+
+6.2
+---
+* Python ``int()``'s accepts even more various non-decimal characters
+ than expected. Make validation fully strict in UTCTime and
+ GeneralizedTime, without relying on ``int()``
+