As with the recent publishes, the full list is kinda long so I've pulled out the tamer specific changes and listed them below. You can find the entire list and discussion thread over on the Test Centre forum [linky-link]
Wenchy
Wenchy
Publish 75
Faction Pet Combat Fixes
Faction players may now order their pets to attack member of the same faction
Pets will now correctly guard against attacks from same-faction players
If a faction player attacks the summoned creature of a member of the same faction, the summoned creature will retaliate
Summoned creatures will attack aggressors who are in the same faction as the summoner
Commodity Broker Fixes
Bug Fixes
Players mounts will no longer randomly become auto-stabled on login
Brokers will no longer open the gates to their animal pens