Release Notes: This release added function/method decorators, arbitrary precision decimals, built-in sets, a unification of integer and long integer, generator expressions, east Asian text encoding codecs, improved process spawning, and many other improvements in the language and standard library.
Release Notes: This release fixes a few regressions found in Python 3.3.1.
Release Notes: Includes a range of improvements of the 3.x series, as well as easier porting between 2.x and 3.x. Major new features have been added to the 3.3 release series.
Release Notes: Several reported security issues were fixed, including a hash collision denial of service, Expat hash collision denial of service, SimpleXMLRPCServer denial of service, and disabling of the CBC IV attack countermeasure in the _ssl module.
Release Notes: This release mainly fixes a regression with the urllib.request module that prevented opening many HTTP resources correctly.
Release Notes: Many bugfixes and enhancements were made. Many consistency and behavior fixes were made for numeric operations.