As I said in February, I haven’t been this stoked for a FreeBSD release in a while. The announcement page, release notes, and errata list all the details. Thanks to everyone on the release engineering team.
You can download from the official mirrors, or John-Mark Gurney has also made magnet links for torrents.
I’ll be working at getting OrionVM’s FreeBSD 13 template finalised in the next couple of weeks.