The Additional Resources entry for the Advanced Player Guide:
Pathfinder Roleplaying Game: Advanced Player's Guide
All playtest versions of the six new base classes from this book are no longer legal for play as of 8/3/10. Anyone playing the playtest version of one of the six new base classes must have updated his or her character as of 8/3/10. Updating your character means adjusting only the things that have changed, but not rebuilding the character.
As of 4/27/15 the summoner class in this book is no longer legal for play. A summoner character that has played at least once at level 2 or higher by this date qualfies to continue using this version of the class. Otherwise, only the summoner in Pathfinder RPG Pathfinder Unchained is legal for play.
The following parts of the Advanced Player's Guide are NOT legal for play: craftsman alternate Dwarven racial trait, practicality alternate Halfling racial trait, heart of the fields alternate Human racial trait, Alchemist's Brew Potion class ability (he receives Extra Bombs instead as a bonus feat), Cavalier's Expert Trainer class ability (he receives Skill Focus [Handle Animal] instead as a bonus feat), Witch's Cauldron hex, Antipaladin alternate class, Cooperative Crafting feat, all cursed magic items and artifacts, the Hero Point new rule and associated feats, spells, and magic items
As of March 30, 2016, the philter of love is no longer legal for play.
Note: The nature oracle replaces awaken with animal growth
Alchemical Allocation is really not so overpowering as you're concerned of, as long as you actually pay attention to the action economy requirements of potions or doubled-up extracts.