consequences of __FreeBSD_version changes

From: void <void_at_f-m.fm>
Date: Fri, 31 Oct 2025 14:01:23 UTC
Hi,

If __FreeBSD_version changes, and if META_MODE= is set
in /etc/src-env.conf, and if ofc filemon_load= is used,
is it advisable/required to delete /usr/obj before building
a new world/kernel ?
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