[Koha-translate] Introduction and doubts

Hello all, I see in the MarkLogic interface that this list actually works. So I should introduce myself. I'm an amateur librarian and amateur system administrator, in charge of the Catalan Esperanto Association's library: biblioteko.esperanto.cat I'd like to contribute to the Esperanto and Catalan translations. However, I have a few doubts about how to proceed. Especially, I'm clueless about all that String Freeze thing. What does it mean? Can't I translate the last release any time I feel like, or only in the week after String Freeze? Do I need to follow a schedule if I work online? Or else if I work offline? Ruben Fernandez