Hello Linux Geeksters. As you may know, Elementary OS 0.3 Freya has been recently released and it is most likely the most beautiful Ubuntu 14.04 derivative system.
Elementary OS 0.3 is based on Ubuntu 14.04 Trusty Tahr, uses Kernel 3.16, GTK 3+14 and Vala 0.26, has UEFI support and over 100 bug-fixes have been implemented.
Also, the Photos app has been updated, Slingshot has received improvements, the multitasking view has been redesigned, the elementary OS Control Center has received multiple improvements, the calculator, camera and video apps have been redesigned, a system-wide “do not disturb” mode has been added, and support for online calendars has been implemented.
How to upgrade from Elementary OS 0.3 Beta to Elementary OS 0.3 Stable:
If you are using Elementary OS 0.3 Beta and want to upgrade your Linux box to Elementary OS 0.3 Stable, you have to replace the elementary beta ppa with the stable one:
$ sudo add-apt-repository --r ppa:elementary-os/daily
$ sudo add-apt-repository ppa:elementary-os/stable
Update the local repository index and remove the elementary beta packages:
$ sudo apt-get update
$ sudo apt-get remove elementary-os-prerelease
Install Kernel 3.16 and perform a system upgrade:
$ sudo apt-get install --install-recommends linux-generic-lts-utopic xserver-xorg-lts-utopic libgl1-mesa-glx-lts-utopic libegl1-mesa-drivers-lts-utopic
$ sudo apt-get dist-upgrade