Allows periodic automatic saving of configuration and other data in foobar2000 and keeping backup copies of such data.
The save operation itself does the same as (hidden) command "File > Save Configuration", that means it saves configuration (the whole configuration subfolder), Media library database (database.*), playlists and any additional data managed by other components (for example current theme or playback statistics).
A little time after startup and each time after configuration is autosaved, a backup of the changed files is also created, as a ZIP archive.
See the discussion thread for more information, like configuration options, implementation details and detailed change log.
Version 10 highlights: Needs foobar2000 v1.1 or newer. Added "index-data" to the default backup file list (used e.g. by Playback Statistics v3.0+) - if you are upgrading from a previous version and changed the default pattern, you ought to do this manually.
10, released on 2010-09-23