# Installing Commvault Software Updates

You can use the Command Center to install Commvault updates to the CommServe server on demand.

You can also create repeatable schedules to install the updates.

Note

- Commvault Version 11 clients running Feature Release 11.24 or earlier are not compatible with CommServe servers running Long-Term Support Release 11.40 or later. To prevent compatibility and communication issues, upgrade all clients running 11.24 or earlier to a supported feature release before upgrading the CommServe server to 11.40 or later.

  To identify and upgrade 11.24 and earlier clients on the CommServe server, do the following:

  1. Create a new Smart Server Group.

  2. Configure the Smart Rule with: Client version v11 and feature release less than or equal to 24.

  3. Run a client upgrade job on the Smart Server Group to upgrade all clients running 11.24 or earlier to the current feature release of the CommServe server.

  4. After all clients are upgraded, upgrade the CommServe server to 11.40 or later.

- If the CommServe server is at Service Pack 13 or a previous service pack, and you want to update it Feature Release 11.28 or a more recent feature release, you must first update it to Feature Release 11.24 or Feature Release 11.26.

- If the CommServe server is at Service Pack 16 or a previous service pack, and you want to update it to Commvault Platform Release 2023 or a more recent platform release, you must first update it to Platform Release 2022E.

- If you update a DDB MediaAgent to a newer release version, make sure to update all other DDB MediaAgents that share the same storage to the same release version.

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