Upgrade of linux mint 17.3

It is now possible to upgrade the Cinnamon and MATE editions of Linux Mint 17, 17.1 and 17.2 to version 17.3.
If you’ve been waiting for this I’d like to thank you for your patience.

Upgrade for a reason

“If it ain’t broke, don’t fix it”.
You might want to upgrade to 17.3 because some bug that annoys you is fixed or because you want to get some of the new features. In any case, you should know why you’re upgrading.
As excited as we are about 17.3, upgrading blindly for the sake of running the latest version does not make much sense, especially if you’re already happy and everything is working perfectly.
Make sure to read the release notes and to known the new features so you have all the information you need before deciding whether you want to upgrade.

Be selective with updates

Upgrading to 17.3 will upgrade to Rosa of course, but also apply all level 1 updates for you.
You do not need to apply level 2, 3, 4 or 5 updates to upgrade to the new version of Linux Mint, and doing so won’t apply these for you.
Level 4 and 5 updates are not recommended unless they bring solutions to issues you’re facing. Level 3 updates should be applied selectively and with caution.
Enjoy

Upgrading to 17.3 is relatively easy.
In the Update Manager, click on the Refresh button to check for any new version of mintupdate and mint-upgrade-info. If there are updates for these packages, apply them.
Launch the System Upgrade by clicking on “Edit->Upgrade to Linux Mint 17.3 Rosa”.
Follow the instructions on the screen.
Once the upgrade is finished, reboot your computer.