The anima regen update was something that was implemented some time ago, shortly after the game went live if I'm remembering correctly. It was a stealth type of patch where they didn't specifically say they did it, but they did confirm in an interview or one of the Q&A's that the update was already live.
Naiya | Mithra | Windurst | Rank 10 | 1st Lieutenant | Ragnarok
WAR: 75 MNK: 75 SAM: 66
RotZ: O | CoP: O | ToAU: O | Apoch Nigh: O
Naiyah | B.Elf | 85 Rogue | Stormscale
Doubleday | B.Elf | 85 Paladin | Stormscale