The release of Raspbian Jessie brings with it the latest version of Scratch, with a speed increase and GPIO support. This means you can use add-on boards such as the Astro Pi’s Sense HAT with Scratch. The Raspberry Pi Foundation’s Clive Beale explains more:
There are many excellent things to be found in last week’s release of Raspbian Jessie and we’ve been keeping one of the best ones tucked under our big Raspberry Pi-shaped hat. In the Programming menu on the desktop you’ll find a new version of Scratch, our favourite programming language for beginners.