Release Notes for Recovery Series, Recovery Max, ION/ION+, and Unitrends Backup 10.6.10

This document describes new features and fixes introduced in the 10.6.10 release. For upgrade instructions and considerations, reference the Upgrade Guide for Recovery Series, Recovery MAX, ION/ION+, and Unitrends Backup.



Windows agents

This release includes updated Windows core and bare metal agents. The 10.6.10 core agent is recommended for most Windows assets and is required for Windows fixes in this release.

Consider the following before upgrading the Windows agent:


For additional agent requirements, see Installing or upgrading the Windows agent in the Upgrade Guide for Recovery Series, Recovery MAX, ION/ION+, and Unitrends Backup.


  • Secure agent pairing – Beginning in Windows agent release 10.6.6, a secure pairing is automatically established between the appliance and the Windows agent on each of its protected assets. This pairing enables Transport Layer Security (TLS) to encrypt data and authenticate connections between appliances and agents. Communication between appliances and agents is only allowed if there is a matching (paired) certificate.
    • If upgrading from a pre-10.6.9 agent release, backups may fail until the pairing completes successfully (this can take up to two hours).
  • Cluster requirements –

    • To protect Hyper-V clusters, SQL clusters, or file server clusters with the secure agent pairing feature:
      • The cluster must be running agent version 10.6.9 or higher.
      • The Unitrends appliance and cluster must be running in the same time zone.
  • Image-level backups – If upgrading from a pre-10.6.3 agent release, the asset's next Windows image-level backup is promoted to a full.
  • The Windows agent does not require rebooting after updating as of version 10.6.1. A reboot is required if you upgrade from an agent before 10.6.1.



The table below lists fixes included in this release. Unless stated otherwise, you can apply each fix by simply upgrading your appliance.

Component   Fix
  • NAS CIFS backup – For NAS shares configured for authentication, passwords with spaces are now supported.
Recovery Assurance
  • On-box Data Copy Access (DCA) job – Fixed an issue where, after upgrading the appliance, the next on-box DCA job for Hyper-V assets could fail with this error: JsonWorker::ReadJsonSubtree
    failed to read_jsonexpected valueJson.
Security updates
  • Applied appliance security updates.



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