Where are we in the timeline?

[Selene]

I got excited to finally get my mage on green to 20 so I could start healing my pets, but renew summoning apparently is not in the game yet...

Does anyone know when it is supposed to be out? Because the wiki says it was included in Classic but I guess later. Kind of sucks not being able to heal your pet when that's the only thing between you and taking a terrible beating, if not death