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HCL Sametime® Administration Guide 12.0.1
Migrating and Upgrading
This section provides information on migrating data from an earlier release to Sametime 12.
Upgrading to a new version or applying a fixpack
Newer versions and fix packs contain new features and fixes. You do not need to remove your current Sametime 12 installation when upgrading to a new version.
Reverting to a previous version on Kubernetes

HCL Sametime® Administration Guide 12.0.1
- Accessibility features for Sametime
  Accessibility features help users who have a disability, such as restricted mobility or limited vision, use information technology products successfully. HCL® strives to provide products with usable access for everyone.
- What's new
  HCL Sametime and HCL Sametime Premium 12.0.1 provide many new features, enhancements and fixes to servers and clients. Additional releases to version 12.0.1 also provides updates to the product.
- Planning
  This section describes the system requirements and server configurations needed for HCL Sametime and HCL Sametime Premium.
- Installing
  This section provides information on installing the servers for Sametime and Sametime Premium.
- Configuring
  This section provides information on configuring the HCL Sametime server. Configuration tasks are dependent on the deployment environment.
- Securing
  This section provides information on securing your HCL Sametime environments.
- Administering
  This section provides information on administering on Sametime environments.
- Troubleshooting
  This section provides information on troubleshooting and supporting Sametime environments.
- Uninstalling Sametime
  In the event that Sametime must be removed, follow the procedure for the platform that Sametime is installed on.
- Migrating and Upgrading
  This section provides information on migrating data from an earlier release to Sametime 12.
  - Planning for migration to Sametime 12
    Sametime 12 requires a new product install and migration of data from your previous version. Do not uninstall the previous version until the V12 installation is finalized and working as expected.
  - Upgrading to a new version or applying a fixpack
    Newer versions and fix packs contain new features and fixes. You do not need to remove your current Sametime 12 installation when upgrading to a new version.
    - Upgrading on Docker
    - Upgrading on Kubernetes
      The Sametime upgrade packages contain full helm charts.
    - Reverting to a previous version on Kubernetes
- Notices

Reverting to a previous version on Kubernetes

About this task

If you encounter a problem, you can return to the previous Sametime version. Helm commands to return to a previous release on Kubernetes. To roll back to the previous version, run the helm rollback command. For more information about the command, see the Helm Rollback topic in the Helm documentation. If you don't know the previous release number, you can use the helm history command. For additional information on how to identify the prior release number, see the Helm History topic in the Helm documentation.

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