-- pg_turbovec 2.7.1 -> 2.7.2
-- Documentation-only: BUG#6 reported upstream on pgsql-hackers, thread link
-- recorded in docs/FILTERING.md and in the tripwire test. Binary
-- byte-identical to 2.7.1. No wire change (v8), no SQL change, no REINDEX.
-- Intentionally empty but MUST exist so ALTER EXTENSION ... UPDATE succeeds.