There are quite a few improvements for all Mint users, too. The Software Sources tool has better support for PPAs--you can now easily browse a single PPA to see its available software after adding it. Update Manager can now group package updates in a more user-friendly way, and you can make its system tray icon hidden when no updates are available. The Language Settings and Login configuration tools were updated.
A new version of Grub means better support for UEFI systems, and the Nvidia drivers were updated. On computers with Nvidia Optimus, you can now switch between graphics chipsets with a logout--no reboot necessary.
Every bit of the system gets some polish, with everything from new desktop backgrounds to bash shell improvements for terminal users.
If you're already using Linux Mint 17, you don't need to do anything special to get the latest release. Just update your system through Update Manager and you'll have the latest software.
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