Upgrade Failure Observed in v21.1.26691 on Windows 11 VM

Discussion in 'Parallels Remote Application Server' started by MetaD, May 4, 2026 at 3:27 AM.

  1. MetaD

    MetaD

    Messages:
    2
    We are currently testing the upgrade and fresh installation process on a Windows 11 virtual machine.

    In the v21 series (latest version: 21.1.26691), the following behavior has been identified:
    • Upgrade from N-1 (21.1.26688) to 21.1.26691 - Fails
    • Upgrade from N-2 (21.1.26548) to 21.1.26691 - Succeeds
    • Fresh installation of 21.1.26691 - Succeeds
    Additionally, upgrading N-1 (21.1.26688) from N-2 (21.1.26548) completes successfully.

    All the above scenarios were tested via both UI and system context.

    During the upgrade process, the operation is rolled back, and the following prompt is displayed:[​IMG]

    The same issue occurs on a 32-bit OS as well.

    Logs have been attached for reference.
     
  2. MetaD

    MetaD

    Messages:
    2
    PFA - Install.log file
     

    Attached Files:

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