no issue
- adapt major changes of knex-migrator v3
- adapt migration scripts, simplify and add `down` (rollback) hook if possible
- clear Ghost cache after init hook (because of `knex-migrator migrate --init`)
- ensure db migrations work with the CLI
- updated troubleshooting guide (https://docs.ghost.org/v1/docs/troubleshooting#section-task-execute-is-not-a-function)
**For development only: Please ensure you run `npm i -g knex-migrator@latest` to update your global installation to v3. We always prefer the local installation, but v3 has modified and added binaries.**
no issue
- add 1.4 database migration to add two new fields to the database (use type text, because of max row size)
- handle global code injection vs. post code injection
- add tests
