A third and final release candidate of FreeBSD 13.0 was warranted ahead of its formal 13.0-RELEASE later this month.
FreeBSD 13.0-RC3 is out this weekend as what was an "as-needed" milestone ahead of the FreeBSD 13.0 release set to take place around 30 March. Notable with this weeks FreeBSD 13.0-RC3 is the removal of the WireGuard kernel driver "if_wg" due to the change in WireGuard implementations amid concerns over code quality for this original WireGuard driver that was set to be introduced in FreeBSD 13.0. Now the existing WireGuard kernel code was removed but this new implementation won't land until at least FreeBSD 13.1 due to the timing of this significant change.
FreeBSD 13.0-RC3 also takes care of a virtual memory list locking issue, a fix for systems running under VirtualBox, a fix in the service utility, and other small fixes.