Open Hand Monk - toggle trip, push when using flurry of blows.
Drunk Master - now blocks AOO
Mercy Monk - after using flurry of blows you can using healing.
Kensei - after using martial arts full action you get +2 AC.

To be fixed: As of 3.8 should be working, i tested war hammer and it worked.
Kensei monk doesn't seem to work to make weapons a Kensei Weapon, I mostly tested with weapons that aren't normally monk weapons ingame such as Spears and Warmaces. They still use Str for dmg and to-hit, and you don't get Agile Parry for attacking with a regular unarmed strike as a main action.

Way of Mercy monks currently don't get to use their Hand of Harm even if you've toggled the passive and land an unarmed attack (tested both main action and bonus). 

Way of Astral Self monks should be getting an aoe attack as they use their BA to awaken their arms. That does not seem to exist in neither text nor effect when you do so ingame. Otherwise the arms seem to be functioning as intended in giving reach and wis for attacks.