The publish gate exists because a minor version bump that NARROWS behaviour is
not backward compatible: _CmmVersion arrived in lib 2.6, and an older lib does
not know the field, so every gated entry looks unfiltered and it installs every
PC-DMIS version it cannot detect, on every CMM, in one cycle.
It was comparing the fleet's reported library versions against manifestversion.
That is the manifest's own 'Version' field. For a share-imported manifest the
two numbering schemes happen to coincide; for a scope authored in code they do
not, and seed_display_scope writes '2.0' - which every kiosk exceeds. So the
gate passed on the scope that most needed it.
A scope now declares minlibversion. Unset, the requirement is DERIVED from what
the manifest actually uses, so a scope written before this column existed is
still judged on its contents rather than on a number that says nothing about the
library. Only features that narrow behaviour belong in that table; an addition
an old lib ignores harmlessly needs no floor. manifestversion remains the last
fallback, which preserves what share-imported manifests already relied on.
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