Locking account?

Ive been gone for a very long time and decided just to pop in to see whats going on.

But I dont see an option to lock my account again? Has that feature been taken away?
I dont want all my horses to die but i dont always have time to play

Instead of account locking, you now have to manually progress your account. So if you don't login and click the option to progress, its basically the same as locking, and nothing will happen with your horses. They wont age, or die or hunger, or any of that. You can also still lock your divisions of horses if you want to be extra safe :)