Hello Linux Geeksters. As you may know, Gnome Shell got in the code freeze state, so the developers don’t bring new features anymore, only bugfixes.

Also worth mentioning, Gnome Shell 3.10 is being build in two separate binaries, one for X11 (libgnome-shell) and one for Wayland (libgnome-shell-wayland). Mutter, the default window manager of Gnome Shell will also use libmutter for X11 and libmutter-wayland.
Also, Mutter (the default window manager for Gnome Shell) has been brought to Mutter 3.10 Beta 2 version.
In this article I will show you how to install Gnome Shell 3.10 Beta 2 (Gnome Shell 3.9.91) on Ubuntu 13.10 Saucy Salamander and Ubuntu 13.04 Raring Ringtail. Because Linux Mint is 100 % Ubuntu compatible, Gnome Shell 3.10 Beta 2 (Gnome Shell 3.9.91) can be also installed on Linux Mint 16 Petra and Linux Mint 15 Olivia.
Since it is available via PPA, installing Gnome Shell 3.10 Beta 2 on Ubuntu and eventually on Linux Mint is easy. All you have to do is:
Add the needed repositories:
$ sudo add-apt-repository ppa:ricotz/testing
$ sudo add-apt-repository ppa:gnome3-team/gnome3
$ sudo add-apt-repository ppa:gnome3-team/gnome3-staging
Update the local repository index:
$ sudo apt-get update
Install Gnome Shell 3.10 Beta 2 (Gnome Shell 3.9.91):
$ sudo apt-get install gnome-shell gnome-shell-extensions
I think that Gnome Shell 3.10 Beta 2 will automatically install Mutter 3.10 Beta 2, on Ubuntu 13.10 Saucy Salamander. But if this does not happen, just do:
$ sudo apt-get install mutter