*UPDATE* RIM has posted the full change log for the PlayBook update and as expected, it does include the security fix for DingleBerry as outlined in the RIM knowledge base under KB29191*
A new update for the BlackBerry PlayBook is now rolling out to consumers. the update comes in weighing just around 5MB and while we don't have a full and complete change log as of yet from RIM it is noted on that the updated includes the following:
Version 22.214.171.12467 - Size 5MB
This version offers support for Flash 10.3 and updates to Adobe AIR to support developers in addition to DST and security fixes.
That said, pretty safe to assume RIM has included a security fix to patch up the DingleBerry exploit we saw not too long ago with this release and rightfully so of course -- the hole should have been patched as soon as they were aware of it but that's neither here nor there right now. If you're looking to keep your PlayBook rooted, best to not take this update however; if you have no concerns with ever rooting your PlayBook then by all means -- get to updating!