OpenBSD 5.9 released

OpenBSD 5.9 has been released a few days early! As always, OpenBSD doesn't do a very good job of summarising the most important changes in this new release, but that's okay - OpenBSD isn't targeted at people like me who know very little about the BSDs. It doesn't really matter - those of you using OpenBSD were probably already aware of what was coming anyway, and if not, the release notes will still make complete sense to you.