Errata patches for sysupgrade have been released for OpenBSD 6.5 and 6.6.

A new kernel may require newer firmware images when using sysupgrade.

Binary updates for the amd64, i386, and arm64 platforms are available
via the syspatch utility. Source code patches can be found on the
respective errata page:

https://www.openbsd.org/errata65.html
https://www.openbsd.org/errata66.html

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)