Anyone have any info about this new firmware release? What's it for,

Anyone have any info about this new firmware release? What’s it for, what’s it fix, etc.
https://twitter.com/support_pb/status/464428345803800576

@Brook_Drumm ?

It’s for the new metal printrbots with the inductive touchless auto bed leveling probe. You can see the commit log in their github account: https://github.com/Printrbot/Marlin/commits/bedlevel_metal-simple

We tweaked some speed settings and distances to speed the before-print sequence. We are open to anything to improve the experience. It doesn’t fix anything that was broken, just improved its speed

Thanks @ThantiK I’m bookmarking it.

@Brook_Drumm would you consider it a recommended update or just optional?

Optional