Let yourself be embraced by the purple rubber toy octopus! We're happy to announce the release of Debian 9.0, codenamed Stretch. Want to install it? Choose your favourite installation media among Blu-ray Discs, DVDs, CDs and USB sticks. Then read the installation manual. Already a happy Debian user and you only want to upgrade? You can easily upgrade from your current Debian 8 Jessie installation, please read the release notes. Do you want to celebrate the release? Share the banner from this blog in your blog or your website!
Source: https://bits.debian.org/2017/06/stretch-released.html