The last two logging changes potentially worth mentioning that I noticed:

- simple callables can now be supplied as logging filters (see the version 3.2 note in http://docs.python.org/dev/library/logging#filter-objects)

- the logging API docs now include a section dedicated to the available attributes on LogRecord instances (http://docs.python.org/dev/library/logging#filter-objects). This makes it much easier to write Filter and Formatter objects that reference these attributes.