Online Migrations

Detects over 20 dangerous operations like column removal and type changes, providing specific error messages with safer alternatives based on the checks list in the README.

Offers ready-to-use methods such as add_column_with_default and initialize_column_type_change, which automate safe migration steps outlined in examples, reducing manual implementation errors.

Includes frameworks for running data and schema changes in the background on large tables to avoid locking, as detailed in the background migrations documentation, enabling zero-downtime updates.

Allows enabling/disabling checks and adding custom ones via configuration, giving teams flexibility to tailor safety rules to their needs, as mentioned in the configuring docs.