Linux Mint 17 Qiana, a long term support release which will be supported until 2019, is finally available for download for both the Cinnamon and the MATE flavors.
Linux Mint 17 “Qiana” is based on Ubuntu 14.04 Trusty Tahr LTS and all future Mint releases will be based only on Ubuntu LTS.
The first flavors released are Cinnamon and MATE and the ISOs come before the official announcement, available for download at Irish mirror:
The official announcement is coming soon, be sure to check out release details at LinuxMint.com