Release Date: June 27, 2018

Note: The release you are looking at is Python 3.6.6, a bugfix release for the legacy 3.6 series which has now reached end-of-life and is no longer supported. See the downloads page for currently supported versions of Python. The final source-only security fix release for 3.6 was 3.6.15 and the final bugfix release was 3.6.8.

Among the new major new features in Python 3.6 were:

• PEP 468, Preserving Keyword Argument Order
• PEP 487, Simpler customization of class creation
• PEP 495, Local Time Disambiguation
• PEP 498, Literal String Formatting
• PEP 506, Adding A Secrets Module To The Standard Library
• PEP 509, Add a private version to dict
• PEP 515, Underscores in Numeric Literals
• PEP 519, Adding a file system path protocol
• PEP 520, Preserving Class Attribute Definition Order
• PEP 523, Adding a frame evaluation API to CPython
• PEP 524, Make os.urandom() blocking on Linux (during system startup)
• PEP 525, Asynchronous Generators (provisional)
• PEP 526, Syntax for Variable Annotations (provisional)
• PEP 528, Change Windows console encoding to UTF-8
• PEP 529, Change Windows filesystem encoding to UTF-8
• PEP 530, Asynchronous Comprehensions

Please see What’s New In Python 3.6 for more information.

Full Changelog