Release date:September, 2021

Table of contents

What's new


  • Support for Microsoft Internet Explorer 11 browser will be discontinued in Acronis Cyber Cloud starting with 21.09 release.
  • Support for Acronis Cyber Protection agent version 12.5.22410 and older will be discontinued starting from January 1st 2022. Make sure these agents are updated until this date.

Tips and tricks

  • To add an additional layer of protection of workloads, configure password protection of agent uninstallation. See this article for instructions.

Acronis Cyber Protect Cloud

Help system in Cyber Protection console

A user can now easily access and watch a video that explains what a protection plan is and how to create one for a workload.

VMware Cloud Director: backup options for tenants

The vCloud Director end-users responsible for management of backups can now configure additional backup options when creating a protection plan for vCloud Director virtual machines:

  • File filters - exclude unnecessary files from entire VM backups.
  • Error handling - define the re-try logics during backup processing to handle network disconnects and other issues.
  • Volume Shadow Copy (VSS) for Virtual Machines - define the consistency level of the VM snapshot to be used during backup.

Acronis Cyber Protect Mobile for Android: control over restoration of deleted pictures and videos

Allows to select whether to restore deleted pictures and videos or not.

Acronis Cyber Protect Mobile for iOS: restore backed up pictures and videos by days

Allows to select backed up photos and videos for restore by days.


New integration: Datto RMM integration

The Acronis integration for Datto RMM enables MSPs to deploy Acronis agents to workloads managed by Datto RMM, and to manage the protected workloads directly from the Datto RMM interface.

Supported scenarios:

  • Installation (incl. update and uninstall).
  • Monitoring and ticketing.
  • Running manual tasks and scans.
  • Support for Windows, Mac and Linux Operating Systems.

New integration: Paessler PRTG integration

The Acronis integration for Paessler PRTG enables monitoring of Acronis Cyber Cloud protected workloads within Paessler PRTG. Status and protection data from Acronis is available as channel information for the MSP on the Custom Sensor page in PRTG. PRTG can then display the data as a table or gauge chart, easily configurable on the UI. Live data is available by default as the Acronis integration plug-in provides the data through PRTG channels.

Supported scenarios:

  • Monitoring of various Acronis protection statuses inside PRTG through Custom sensors.

New integration: Ninja RMM integration

The Acronis integration for Ninja RMM consists of a set of scripts that allows MSPs to deploy Acronis agents to workloads managed by Ninja RMM, apply and revoke protection plans, and to retrieve protections status and alerts.

Supported scenarios:

  • Agent Installation.
  • Monitoring and ticketing.
  • Support for Windows, Mac and Linux Operating Systems.

Update: Autotask PSA - Pay as you go billing support

  • Pay as you go is supported as a property of a Contract, meaning all Acronis Services on that Contract will be considered pay as you go and will have usage reported.
  • Prepaid with overage scenarios will not be supported.

Updated Components

Cyber Protection agent

The Acronis Cyber Protection agent has new versions as follows.

  • Acronis Cyber Protection Agent for Windows (v. 15.0.27751)
  • Acronis Cyber Protection Agent for Mac (v. 15.0.27751)
  • Acronis Cyber Protection Agent for Linux (v. 15.0.27751)

See the release notes for Acronis Cyber Protection agent here.

Changes in Acronis Cyber Cloud API

You can find the history of changes in Acronis Cyber Cloud API in the dedicated API change log document.

Fixed issues

This section describes issues that have been fixed in this update.

Acronis Cyber Protect Cloud


  • [ABR-320808] Delete an archive from cloud location fails with error "Cannot find archive" if it already does not exist.
  • [ABR-321469] Backup fails with unclear error "POR: Element 'Name' cannot be found".
  • [PLTFRM-30001][PLTFRM-29541] Agent auto-update fails in certain circumstances.
  • [ABR-316757] Backup is not running as scheduled.
  • [ABR-318807] Cyber Protection Console failed to open with error "Connection failed Currently, the Cyber Protection console is not available. Please try again later".
  • [ABR-323504] Year is not displayed in "Last change" column while archive browsing, sorting does not work.
  • [ABR-322827] Backup fails with error "The credentials for location are not specified".
  • [ABR-299519] Loading of mailbox contents from app-aware disk backup of Microsoft Exchange 2013 fails.
  • [ABR-320975] Cyber Protection console shows "100% (Backing up)" in the "Status" column when agent is still replicating backup.
  • [ABR-323865] Button "update all outdated agents" is still clickable even if there are no outdated agents.

Cyber Protection Agent

  • [ABR-320889] Non-actionable warning is shown during backup "Failed to read the snapshot of the machine because the snapshot no longer exists".
  • [ABR-320583] Agent update fails if Self-protection with Password protection enabled.
  • [ABR-306830] Replication to cloud fails with error "The system cannot find the file specified" after updating agent to version 15.0.26077.
  • [ADP-16526] Installation process endlessly repeats after all components successfully installed.

Dashboards and reports

  • [ADP-16843] Backup status reports generated after August 15th are blank in some cases on SG datacenter.
  • [ADP-16651] Cloud Applications widget does not contain oldest/latest recovery points and number of backups when too many resources are loaded.
  • [ADP-11891] Filtering by protection status doesn't work properly in "Devices" widget, specifically for "Ok" status.
  • [ABR-323605] Backup status report fails to load.
  • [ADP-16483] "Devices" widget exported to XLS has duplicated columns.

Disaster Recovery

  • [DRAAS-21551] Warning about executing runbook in production mode is shown in Activities for non-existent runbook.
  • [DRAAS-23837] Recovery server does not have access to network or Internet due to VPN Gateway is in error state.

Linux protection

  • [ABR-321931] After auto-update of agent for Virtuozzo to version 15.27305, it disappears from Virtuozzo tab.
  • [ABR-318891] Contents of /var not backed up on CloudLinux with Cagefs.
  • [ABR-321404] SnapAPI compilation errors on kernel 4.18.0-315.x86_64.
  • [ABR-322773] Agent for Linux version 15.27305 demonstrates high RAM usage in certain circumstances.

Microsoft 365, Google Workspace and other applications protection

  • [ABR-321801] Default archive name template in protection plan contains resource name instead of resource ID.
  • [ABR-323479] Backup of Microsoft 365 Teams fails with error "heartbeat-expired".
  • [ABR-322035] Files with applied security label with AIP encryption are excluded from backup of Microsoft 365.
  • [ABR-322399] Backup of Microsoft SQL fails with error "Archive with the same name already exists" after updating agent to version 15.0.27147.


  • [AN-3111] File details not shown when user search for file that is not displayed in the table.
  • [AN-3118] Unable to sign a file when user uploads a PDF document with existing annotations.

Security and management

  • [ADP-15176] Installation of patches for Microsoft Teams ( and Foxit Reader ( fails due to timeout.
  • [ADP-15918] Threat can't be quarantined if there are network problems.
  • [ADP-16156] Backups antimalware scan gets stuck in certain circumstances.
  • [AAP-4886] Active Protection disabled automatically if offering item containing such feature is not available for customer.
  • [AMP-7080] Some applications are lagging when URL filtering is enabled on a machine.

Virtualization protection

  • [ABR-130676] Backing up a physical machine which has only Agent for VMware (Windows) installed without regular Agent for Windows fails with "None of the items selected for backup were found" error.
  • [ABR-322922] False alert "The following selected virtual machines are not found" about already deleted Hyper-V virtual machine.
  • [ABR-306757] Virtuozzo Hybrid Infrastructure/Acronis Cyber Infrastructure virtual machines created by 'virt-v2v' tools are not visible in Cyber Protection console due to wrong guest OS type.

Management Portal and Platform Core

  • [PLTFRM-29851][PLTFRM-29669] Saving changes for "Agent auto-update" settings fails in Management Portal.
  • [PLTFRM-30350] File Sync & Share users with non-unique e-mails can be created within a partner tenant.
  • [PLTFRM-30459][PLTFRM-30219] Omnivoice usage is not displayed on customer level in Management Portal.
  • [PLTFRM-31734] Agents auto-update settings cannot be saved in certain circumstances.
  • [PLTFRM-30375] Switch edition from legacy to "Per gigabyte" fails.
  • [PLTFRM-32125] Mass edition switch script errors if there is a tenant with "Self-service mode" enabled.
  • [PLTFRM-26855] EULA acceptance screen is not rendered properly in Firefox browser.

Known issues and limitations

This section describes issues that are currently known and provides solutions to avoid the issues where possible.

Acronis Cyber Protect Cloud


  • [ABR-240431] It is possible to apply an existing protection plan with the "Cloud" backup destination, even if the cloud storage quota was exceeded for a tenant. The plan will fail upon execution.
  • [ABR-228827] If some backup is removed via the Data Recovery (Web Restore) console, this change is not reflected in the service console while browsing the backup location, until the service console is refreshed.
  • [ABR-196710] The backup location on the network share usage is duplicated in the case when there is a different network share with the same name registered as a backup location (shares rotation scenario).
  • [ABR-189620] The "Activities summary" widget shows activities out of the defined date "Range" scope (excessive activities may be shown).
  • [ABR-184900] Local backup usage is not reported for backups stored on a network share with enabled deduplication.
  • [ABR-183764] Local backup usage is not updated for all virtual machine backups after deleting and re-adding a network location.
  • [ABR-182313] Local backup usage size is duplicated after reconnecting a locally attached storage (LAS) to a new Agent for VMware (Virtual Appliance).
  • [ABR-178648] The installer does not remove/update old libraries if the previous update was interrupted.
  • [ABR-154655] The protection plan may have the "Backup succeeded" status, even if this plan is completed with warnings. Alerts and activities still show the proper status of the plan.
  • [ABR-113452] If a machine was re-registered under a different account without revoking the existing protection plan from it, this plan may still continue to run unexpectedly.
  • [ABR-190404] It is not possible to recover from the Large Scale Recovery backup produced by the "LSR" tool if the backup is split into multiple separate files (multi-volume).
  • [ABR-158677] "Intel(R) 82574L Gigabit Network Connection" NIC is not properly recognized by Windows 10 after recovery of an image to a VMware Workstation virtual machine by using the bootable media.
  • [ABR-129075] When browsing a folder in a backup during the file-level recovery via the Cyber Protection console, some child folders may not appear in the list after sorting by type if the folder contains many elements.
    • Solution: To show all items of the folders, you need to scroll down in order to load the entire content of a parent folder and perform sorting only after that.
  • [ABR-127666] Files/folders may still be available for a recovery from backups saved in the cloud, even if these files/folders were removed from a source device and the backups that contain these files were already cleaned up during retention.

Cyber Protection Agent

  • [ABR-87244] File-level recovery from a disk/volume backup of NTFS volumes with the enabled native deduplication does not work.

macOS protection

  • [ABR-207057] The Bulgarian language is missing in the "Recovery HD" menu (bootable media for Mac), due to a lack of support of the Bulgarian language in macOS.
  • [ABR-141823] There are incorrect backup items in a protection plan after updating Mac OS X to 10.13 High Sierra with conversion from HFS+ to APFS (some backup items are missing).
  • [ABR-137886] Backing up Mac with Apple RAID configured fails with the "No volumes were found when processing the 'Fixed Volumes' template" error. Apple RAIDs are not supported.
  • [ABR-115270] The "[All Profiles Folder]" template in a file level backup does not support a custom profile path.

Microsoft 365, Google Workspace and other applications protection

  • [ABR-162925] Application items (databases and/or mailboxes) cannot be recovered from the application-aware entire machine backup if the databases are located on mount points (the database path is redirected to another location).
  • [ABR-74984] The "Next backup" time is not displayed for a machine that has only application-level protection plans applied to it.
  • [PLTFRM-18969] It is not possible to protect Microsoft SQL on a machine with a workstation operating system, in the case Agent for Hyper-V is also installed among local agents.
  • [ABR-255521] The number of total runs and successful runs is zero for the Microsoft Office 365 resources.

Virtualization protection

  • [ABR-308679] Installation of Red Hat Virtualization guest tools fails inside the VM restored from a physical (other platform) backup
    • Solution: during installation of RHV guest tools, uncheck the following drivers: Vioscsi, Vioserial, Viostor
  • [ABR-296485] Agent for Virtuozzo Hybrid Infrastructure (virtual appliance) may crash when performing VM recovery from backup captured from another platform (for example from physical machine or VMware VM), if there is 1GB RAM available on the appliance.
    • Solution: Increase the RAM of the virtual appliance to 4GB.
  • [ABR-242166] An application-aware backup of a Hyper-V virtual machine may fail when executing the WMI query, with the "WMI 'ExecQuery' failed executing query." or "Failed to create a new process via WMI" errors, when the backup is performed on a host under a high load, due to no response from WMI.
  • [ABR-235983] A protection plan using policy rules such as "/dev/sdaX" or "/sdaX" applied to a VMware or Hyper-V virtual machine fails with the "Nothing to back up. The operation has been terminated." error, when performed by Agent for VMware/Hyper-V.
  • [ABR-234935] There are duplicated activities in the Activities summary, after the backup of a virtual machine running on a Hyper-V cluster.
  • [ABR-234935] An incorrect number of Total runs/Number of successful runs for a Hyper-V cluster is shown on the Operations tab.
  • [ABR-234935] The number of email notifications is equal to the number of Hyper-V cluster nodes for one VM backup activity.
  • [ABR-192213] VMware virtual machines with an empty "vc.uuid" (InstanceUUID) vSphere property are not listed in the service console.
  • [ABR-189882] Backup of a Hyper-V virtual machine fails if it contains an ampersand symbol in the names of its virtual disks.
  • [ABR-173002] Run VM from a backup on a Hyper-V host fails, if the backup is located on the same volume as the path selected for the mounted VM disks.
    • Solution: Select a different volume for the mounted VM disks path. The space will be consumed only for changes generated inside the mounted VM and it will not occupy the entire size of the virtual disk.
  • [ABR-137564] Cross-platform recoveries (when the backup was created not by Agent for Hyper-V) into a new Hyper-V virtual machine by Agent for Hyper-V always produces the Gen 1 version of virtual machine.
  • [ABR-115430] A "backup is missing for X days" alert is activated even if the backup plan is not scheduled, but has this alert option enabled in its settings.
  • [ABR-104081] A VM replication plan may fail due to network disconnects between source and target ESXi hosts even if the "Error handling" option is enabled.
  • [ABR-95961] A backup task periodically fails on snapshot creation for some Virtuozzo containers after some time on a host with a high load.
  • [ABR-85645] Backup of a virtual machine with Active Directory may complete with warning "MFT bitmap is corrupted."
  • [ABR-183082] Recovery of a Linux machine having some volumes with the XFS file system completes with the "Failed to process the boot loader configuration." warning. The machine is bootable despite the warning.

Management Portal and Platform Core

  • The read-only role is available for selection while customer tenant is in Cyber Backup - Standard and Cyber Protect - Standard editions, yet it should not be due to licensing limitations.
  • [ABR-138058] Sending backup notifications is turned off after disabling and then returning back the Cyber Protection role to a user.
  • [ABR-136810] An unclear error is shown if a destination tenant was not found while moving a tenant.
  • [ABR-136694] The "Bad request" message appears if a large number is specified for the Storage quota.
  • [ABR-203902] The error message "The number of registered and deleted storage registrations exceeds 50" is shown during storage re-registration.
  • [ABR-203243] Logout is done correctly while a user is logged in via a branded URL; however, logout is not done for a non-branded URL.
  • [ABR-173628] Active Directory Connector - mapping is not saved when one or more Distinguished Names (DNs) are invalid.
  • [ABR-131711] Lack of salutation text in the "Quota exceeded" email notification.
  • [PLTFRM-20333] A Hyper-V host may consume two "Server" licenses, in cases when it is backed up as a physical machine and there are also VMs or Microsoft applications running on this host and which are backed up by other types of backup agents.
  • [PLTFRM-20414] Compute points usage from the original edition is not displayed for a customer in the report after the edition switch and tenant move, for example, when the edition is switched from Standard to Disaster Recovery.
  • [PLTFRM-2340] The "Tenant was moved" audit event description shows tenant IDs instead of names.
  • [PLTFRM-18229] Improve the error message for the RPC GetRedirect method, in case a customer has no storage.