- operations.format.fetch_base: try to use proxy values from domain (i.e. ``/etc/portage/make.conf``) as first priority (arthurzam)
- metadata.xsd: add codeberg remote-id (laumann, 414)
- examples/verify_at_done: add new helper tool to collect done AT bugs (arthurzam)
- eclassdoc: many changes to the way pkgcore generates docs from eclasses: removal of ``Bugreports`` tag, display default or initial values, display exported phases, various improvements to the RST output (arthurzam, 346)
- eclassdoc: add devbook output format (arthurzam, 346)
- various code refactoring and modernization (ferringb, 415, 417)
- drop support for Python 3.9 (arthurzam)