Concisely, and addressed to the /freebsd-stable/ list:
15.0/Stable
<https://docs.freebsd.org/en/books/porters-handbook/versions/#versions-15>
is slightly outdated, nothing more recent than 1500504.
2025-12-24:
LinuxKPI: bump __FreeBSD_version for vmap_pfn implementation ยท
freebsd/freebsd-src@198ef2a
<https://github.com/freebsd/freebsd-src/commit/198ef2a31cee7dd256434ad6120d279d9bcc211a>
The bump, on the *stable/15* branch, was to:
1500505
<https://mail-archive.freebsd.org/cgi/mid.cgi?CAFzDrHKO6CtCdWVqGWQoWCjb0RgL_%2Bu56JbxQ-TkG%2BEAoO%2BtsA>
shows /base_latest/ for /FreeBSD-base/.
Hope that helps,
G
