Description:

The 'awesome' window manager is purportedly stable, but between version levels as low as from 2.1 to 2.2 it will change enough that old configuration files will no longer work, and will cause awesome to fall back on the default config. For instance, the most recent upgrade to 2.2 made a good deal of the options obsolete, enough that almost everyone with a previous awesome configuration will have to make an effort to update their files. I believe this merits a post-upgrade message warning the user that their configs have, more likely than not, been outdated.

Concrete examples include, but are not limited to the .awesomerc options focus_move_pointer, allow_lower_floats, align, and focustitle. This covers the range of general options, widget options, and even a widget type. Awesome's error handling is such that it will not accept even one invalid option, or it simply gives up.