Update 4:24 PM EDT: Official patch notes are listed below. No mention yet of a free packs event.
Hearthstone Patch 5.2.2 - Free Packs Event?
A new patch has been pushed the the live servers. Within it, an activate flag was updated under an event!
- set_rotation_2016_free_packs is no longer set to None but rather "set_rotation_2016_free_packs"
We aren't certain what this means but we'll update if we find out!
Official Patch Notes
Quote from Avarius
- We fixed an issue that prevented some players from starting a game
- Morgl’s hero power is now correctly animated
- Your quests should now display correctly
- [Mobile] Performance has been improved for mobile devices and tablets
- [Mobile] Those pesky vines that could show up during the mulligan phase have been pruned from Standard icons
- [iOS] iPhone SE should now display the correct UI
- [Apple] Addressed a crash on iPhone 6 Plus and Mac devices