This tutorial explains how to install GNOME 3.14 in Ubuntu GNOME 14.10. Ubuntu GNOME 14.10 (Utopic Unicorn) ships with GNOME 3.12. Luckily, you can install the latest GNOME (3.14) in Ubuntu 14.10 using a PPA.
The latest GNOME 3.14 comes with a system-wide multitouch gestures (for touchscreen devices), new animations for the Activities Overview, new search providers for Clocks & Calculator, network-based sharing, improved support for Wi-Fi hotspots, Wayland improvements and various CSS UI improvements.
Please Note: The latest GNOME is available in the GNOME 3 Staging PPA and is not stable. Please make sure you read the PPA description carefully before you install and use it. Also, follow the instructions below on your own risk.
Install GNOME 3.14 in Ubuntu GNOME 14.10
1. Install GNOME 3.14
To add the PPA and upgrade to GNOME 3.14 in Ubuntu 14.10, run the following commands:
sudo add-apt-repository ppa:gnome3-team/gnome3-staging
sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get update
sudo apt-get dist-upgrade
If you see an error “GdkPixbuf-WARNING” please install libgdk-pixbuf2.0-dev.
sudo apt-get install libgdk-pixbuf2.0-dev
Now run the following command based on your system configuration. This will fix the issue.
For 32bit Ubuntu
sudo -i
gdk-pixbuf-query-loaders > /usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache
exit
For 64bit Ubuntu
sudo -i
gdk-pixbuf-query-loaders > /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache
exit
2. Once you have executed the above commands, restart the system.
How to Uninstall GNOME 3.14
If you want to revert the changes, uninstall GNOME 3.14, run the following commands:
sudo apt-get install ppa-purge
sudo ppa-purge ppa:gnome3-team/gnome3
sudo ppa-purge ppa:gnome3-team/gnome3-staging