The Gnome foundation has announced the second beta release of the Gnome 3.5.91 desktop environment. This codebase will be merge into Gnome 3.6 that is scheduled to be released soon.

Some of the core apps that were updated in this release are:

 - baobab (3.5.90 => 3.5.91)
 - caribou (0.4.3 => 0.4.4)
 - empathy (3.5.90 => 3.5.91.1)
 - eog (3.5.90 => 3.5.91)
 - epiphany (3.5.90 => 3.5.91.1)
 - gdm (3.5.90 => 3.5.91)
 - gnome-contacts (3.5.90 => 3.5.91)
 - gnome-control-center (3.5.90 => 3.5.91)
 - gnome-desktop (3.5.90 => 3.5.91) (*)
 - gnome-online-accounts (3.5.90 => 3.5.91)
 - gnome-settings-daemon (3.5.90 => 3.5.91)
 - gnome-shell (3.5.90 => 3.5.91)
 - gtk+ (3.5.12 => 3.5.16)
 - metacity (2.34.5 => 2.34.8)
 - nautilus (3.5.90 => 3.5.91)

You can have a look at full release notes here. Also you can download this release for testing purposes from this link.