Changes to the python API for Kodi L*

Below you’ll find an up-to-date list of all changes made to the python API since the release of Kodi Krypton.

Please keep this thread clean. It should be an easy overview for python coders who are updating their addon for Kodi Krypton.
For discussions / feature requests / bugreports, please find (or create) the appropriate thread in the addon development forum.