When is WP 8.1 UPDATE ONE being released officially?

[WPCentral Question]

I'm in the UK using a Lumia 630 (8.1 preinstalled) and looking forward to Update One (of WP 8.1) so that I can get Cortana. Coming from a Android Device, I really miss Google Now and looking forward to using Voice commands again for the weather.

Anyway theres lots of Stories about Update 1 of 8.1 including how you can get it via WP Developer but wondering when Update 1 will be officially released to existing Windows Phone 8.1 Users?

 

[Ashish Gupta888]

[1] If you just want to use Cortana, you can do so by changing your region, speech and language to the USA. You'll get get US-Cortana.
[2] If you want to use UK-Cortana, download Preview for developers app and register with your Outlook account. Once done, go to Phone Update(You'll find in Setting) and check for updates. You'll get the required update - 1 for 8.1.
[3] Once done with installing update-1, you should change the language, Speech and region setting to UK and you'll get Cortana for UK.