Nokia in blog post, updated about upcoming windows phone update details. Now it is rollout for lumia 1020 and 925 models. For other models it will be in coming weeks. For more information check here http://www.nokia.com/global/support/software-update/wp8-software-update/.
This update features :
1) App Folder
2) Nokia Glance screen 2.0
3) Bluetooth LE
4) Nokia Refocus
5) Nokia Beamer
6) Nokia Storyteller
7) Nokia Camera
All cool things, I am waiting for this update for my phone (Lumia 920)
Source : Nokia conversations and Black update info