# Migrate to Confluent for Kubernetes Starting in Confluent for Kubernetes (CFK) 2.4.0, the MigrationJob custom resource definition (CRD) is no longer supported. To migrate Operator 1.x to CFK 2.4.x and later: 1. You must first migrate to CFK 2.3.x using the MigrationJob CR as described in the [CFK 2.3 Migration Guide](https://docs.confluent.io/operator/2.3.1/co-migration.html). 2. Upgrade from CFK 2.3.x to the current version as described in [Upgrade CFK](co-upgrade-cfk.md#co-upgrade-cfk). When you upgrade the migrated CFK to 2.4.x+ in this step, you need to set the internal topics partitions of Control Center as described in [Upgrade CFK](co-upgrade-cfk.md#co-upgrade-cfk).