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Acronis Backup 12.5 Update 3.2 has been released!

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Dear Acronis Community!

this is to inform you that Acronis Backup 12.5 Update 3.2 has been released.

Build number: 11010

All installers and documentation are available here:

What's new in Update 3.2


The capability to stop an execution of a backup plan from the Plans tab.

Support for new operating systems

  • Support for Windows Server 2019
  • Support for CentOS 7.5
  • Support for ClearOS 7.4
  • Support for macOS Mojave 10.14


  • Support for Citrix XenServer 7.3, 7.4, 7.5
  • Support for Nutanix AHV

Issues fixed in build 11010

Installation and upgrade

  • [ABR-172115] Installation fails to register Agent for Windows and Acronis Storage Node components on the management server during update from Acronis Backup 12.5 Update 2 or the previous versions in case the components list was modified before the update.


  • [ABR-190754] Custom machine groups may be partially missing while creating a backup plan and choosing the list of devices to be included into this plan.
  • [ABR-189640] Activities on the management server remain running and cannot be stopped if the agent which produced these activities is out of sync with the management server, for example if the machine was restored from a backup.
  • [ABR-189039] Acronis Backup 12.5 Advanced licenses for Chinese language are not enabling advanced features. Acronis Storage Node and tapes management becomes unavailable.
  • [ABR-185216] VSS provider selection is unavailable in Backup Options->Volume Shadow Copy (VSS) settings.
  • [ABR-177723] If a backup is exported/replicated to another location, then the retention rules applied to this exported/replicated backup do not perform data clean up properly, thus leaving orphaned backup chains. As the result the backups' size in original and secondary backup locations differs significantly even though both backups contain the same set of recovery points.
  • [ABR-177645] Backup to an SMB share with the Version 12 backup format fails with "Input/Output" error ("code":"5005") if the SMB share returns "INVALID_PARAMETER" on file sparse requests. Typically this problem affects SMB shares hosted on NAS devices.
  • [ABR-176719] The Managed Machine service ("mms") crashes on Linux during backup to the cloud storage through a configured proxy connection if the proxy server becomes unavailable.
  • [ABR-175989] Backup to an SMB share with the Version 12 backup format does not properly fail and hangs instead if there is no free space left on the share.
  • [ABR-174598] Backup replication plans fail automatically if they last for more than 12 hours. This problem does not affect regular backup plans with backup replication option enabled.
  • [ABR-141944] False alerts 'Machine is offline for more than XX days' are generated when starting the management server if the machine is online for more than XX days.

Active protection

  • [ABR-188613] In some cases, the "Self-protection" feature (part of Acronis Active Protection) produces false positive alarms about the C:\Windows\System32\rundll32.exe binary.

Tape management

  • [ABR-135829] The "arsm.exe" process consumes excessive amount of memory during files/folders backup with the enabled retention rules to a centralized tape location managed by Acronis Storage Node.

Application support

  • [ABR-181405] In some cases service_process.exe crashes when performing an application-aware backup of Windows Server 2003 machine running SQL 2005.

Mac support

  • [ABR-180057] "Entire machine" backup of MacOS Sierra fails with "Failed to lock the volume." + "Operation not permitted" errors if there is a "Recovery HD" volume present.
  • [ABR-175023] "Entire machine" backup does not resume and hangs after the machine wakes up from the sleep mode.
  • [ABR-168967] In some cases, backup of APFS-formatted volumes with the Version 12 backup format fails with an "input/output" error.

Full release notes are available here: <English>, <Japanese>

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