Upgrade Overview for Confluent for Kubernetes

A Confluent for Kubernetes deployment includes:

• Confluent for Kubernetes (CFK) Operator
• Confluent Platform component clusters

As CFK and Confluent Platform are versioned differently, see the compatibility matrix for the compatibility between CFK and Confluent Platform.

You can upgrade either CFK or Confluent Platform independently from each other.

When you are planning for an upgrade of your CFK deployment, review the following so that you can chart the appropriate upgrade path:

• Your current versions of CFK and Confluent Platform.
• The release notes of later versions of both CFK and Confluent Platform, to see which features and fixes you are interested in:
  • Confluent for Kubernetes Release Notes
  • Confluent Platform Release Notes
• The support matrix for CFK and Confluent Platform.

The following upgrade paths are supported:

• Upgrade Confluent Platform only

  Make sure that the version of CFK you are running supports both the starting and ending versions of Confluent Platform.

• Upgrade CFK only

  Make sure that the CFK version that you are upgrading to supports the Confluent Platform version you are running.

• Upgrade both Confluent Platform and CFK:

  Step 1. Upgrade CFK.

  Step 2. Upgrade Confluent Platform.

To upgrade from Confluent Operator 1.x to Confluent for Kubernetes, see Migrate to Confluent for Kubernetes.