I got this 1.56 upgrade on 11/18 and I saw one visual fix. It is an upgrade but also a bug. Previously when you use your phone, you will have to push menu and then mute or speaker to mute your phone or put your phone on speaker. Now with this release, both Mute and Speaker are right there on the phone screen, which is very convenient but the icons are reversed, meaning when Speaker is off, the icon shows speaker is On, and the same issue with the Mute icon. I am sure another push is coming soon.
Linear Mode
