Pack.mcmeta now spans pack_format MIN_SUPPORTED_FORMAT (=63, 1.21.6) up to
max(LATEST_KNOWN_FORMAT, resolved.format) so a single build loads on every
MC from 1.21.6 through 26.1.2+ (currently extending to 86 = 26.2). Both
schemas are written: supported_formats for clients on pack_format <= 64,
and min_format/max_format for 1.21.9+ clients. pack_format itself stays
at the build target so newer clients see the pack as current rather than
legacy.
claude-bot
1665f05c55