No, it's not an April Fools day joke.. ;-) https://lists.debian.org/debian-devel-announce/2015/03/msg00016.html

We now have a target release date of Saturday the 25th of April. We have checked with core teams, and this seems to be acceptable for everyone. This means we are able to begin the final preparations for a release of Debian 8 - "Jessie".

All the best, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC