"It seems faster" doesn't quite cut it for every update that hits the store with no change log. This includes Facebook Beta, which has just been bumped to version 18.104.22.168 (up from 22.214.171.124). Unfortunately, Microsoft has failed to provide a list of changes included in the release an thus we're not entirely sure what's actually new with this update. That said, it's available for download.
Since we're unable to obtain a changelog, we'll note likely minor improvements and bug fixes, but if you have updated Facebook Beta and notice anything new, be sure to hit us up in the comments.
A big thanks to everyone who tipped us!