When is the New Client coming to EUW?

Seriously can't find anything one this outside of -coming soon-. You'd think that for such a pivotal change there'd be clear dates and announcements that are dead easy to find, instead there's only LCS stuff being shoved in my face on the EUW news page. Tbh, I don't even use Riots sites to find out what's going on anymore, Surr20 is my Go2 - easier to find what I want to find, and the important stuff such as patch changes and the ins and outs of new champions are always on the front page, instead of bogged between LCS stuff. But I digress.

I'm really looking forwards to the new client since I'm a mac user and, I'm hoping that the new client will fix a lot of the mac-specific bugs that the old client had (And trust me when I say that there was, and still is, A LOT of them), so when is it coming to EUW?