I wasn’t sure whether I would make it to Linuxdays Graz (GLT15) this year so I didn’t participate in its call for lectures. But when meeting folks on the evening before the main event I came up with the idea of giving a lightning talk as special kind of celebrating the Debian jessie release.
So I gave a lightning talk about "Debian 8 aka jessie, what’s new" on 25th of April (couldn’t have been a better date :)) and the slides of my talk turned up to be more useful than expected (>3000 downloads within the first 48 hours and I received lots of great feedback), so maybe it’s worth mentioning them here as well: "Debian 8 aka jessie, what’s new" (PDF, 450KB)
PS: please join the #newinjessie game, also see #newinjessie on twitter