What’s New in Python
The “What’s New in Python” series of essays takes tours through the most
important changes between major Python versions. They are a “must read” for
anyone wishing to stay up-to-date after a new release.
The “Changelog” is an HTML version of the file built from the contents of the
Misc/NEWS.d directory tree, which contains all nontrivial changes
to Python for the current version.