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unleash.unleash/docs/migration-guide.md
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Migrations guide

Upgrading from v1.0 to 2.0

Caveat 1: Not used db-migrate to migrate the unleash database?

In FINN we used, for internal reasons, liquebase to migrate our database.
Because unleash from version 2.0 migrates the datbase internally, with db-migrate, you need to make sure that all previous migrations for version 1 exists, so unleash does not try to create tables that already exists.

How to check?

If you don't a "migrations" table with 7 unique migrations you are affected by this.

How to fix?

Before starting unleash version 2 you have to run the SQL located under scripts/fix-migrations-version-1.sql

Caveat 2: databaseUrl (not databaseUri)

Using unleash as a lib and injecting your own config? Then you should know that we changed the databaseUri config param name to databaseUrl. This to align it with the environment variable (DATABASE_URL), avoiding multiple names for same config param.