Research In Motion has officially released OS 18.104.22.1688 for the BlackBerry PlayBook. Now apparently, we are hearing that version 22.214.171.1240 will be the ‘stock’ OS for the BlackBerry PlayBook 4G. Anyway, this update is also a maintenance update from what we are hearing.
There is no change log from RIM yet, so let us know in the comments if you notice anything different. Hopefully we will see another update to v2.1.x soon!