The schema comes from 001_schema.sql, edited in place before 1.0, so the
README's upgrade procedure, downgrade note, BIND_ADDRESS upgrade note and
remarks about what older builds wrote are removed.
The description of the SQL schema files moves to a new Schema subsection
under Database Architecture, the health check command moves to Version
stamping, and the section is renamed Backup and Restore. The sentences on
session timestamps, file modes and the retention clamp now say only what
the code does.
Model: opus-5-5