Release date:November, 2025
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Last document update: December 4, 2025

Table of contents

What's new

Platform: Archival Storage via Seagate

Now you have access to a low-cost, S3-compatible archival storage space for long-term retention (6+ months) of infrequently accessed files. The feature is controlled via a dedicated SKU, and will be billed per TB, following the pay-as-you-go (PAYG) model.

Key Benefits

  • Strong security, immutability, and compliance features.
  • Reduces maintenance efforts for large-scale archival.

Implementation notes

  • The storage space cannot be used as destination for regular backups.
  • The minimum retention period is 6 months. Early deletion incurs fees.

Licensing

  • Available in all licensing models.

Backup: In-Archive Deduplication for Microsoft 365 and Google Workspace

Deduplication helps reduce the backup storage costs by eliminating duplicate data in archives for Microsoft 365 and Google Workspace.

Key Benefits

  • Up to 50% size reduction for Teams data, 40% for SharePoint, and 30% for user drives.
  • Improves customer satisfaction and optimizes storage usage.

Implementation notes

  • Applies to newly backed-up data for cloud to cloud backups and does not affect existing backups.

Licensing

  • Free addition to Standard Protection; no changes in billing.

Acronis EDR: Threat Hunting with Event Search – General Availability

Partners can now run custom threat-hunting queries on EDR telemetry by using the Event Search functionality within a selected time frame, as well as save and share their queries for reuse.

Key Benefits

  • Enables proactive detection of IoCs and suspicious activities.
  • Supports custom queries with Acronis XDR Query Language (XQL).

Licensing

  • Solution-based: Security and RMM, Ultimate Protection.
  • Service-based: Acronis EDR.

Acronis EDR: URL Filtering – Blocking Page, HTTP/2 and QUIC Support

The URL filtering engine is enhanced with a new browser protection option that adds support for modern protocols like HTTP/2 and QUIC via a new extension for Google Chrome and Edge. Users of HTTP and HTTPS sites are presented with clear messages when the site they are trying to visit has been blocked.

Key Benefits

  • Improved user experience on HTTP and HTTPS sites.
  • Reinforced browser security.

Licensing

  • Solution-based: Security and RMM, Ultimate Protection.
  • Service-based: Acronis EDR.

Acronis RMM: Customizable Baseline Templates in Microsoft 365 Security Posture Management

Partners can now deliver tailored security posture for every Microsoft 365 customer, with customizable baseline templates that adapt to specific business needs and compliance requirements. They can deploy their own custom baseline templates for compliance and security by using the 40+ ready-to-use baselines, including Intune baselines for Windows, macOS, Android and iOS devices.

Key Benefits

Partner administrators can:

  • Create, edit, deploy and revoke tenant baseline templates.
  • Add, configure, and delete baselines in templates as needed.
  • Change or remove the default template to be used when onboarding new tenants.

Licensing

  • Solution-based: Security and RMM, Ultimate Protection.
  • Service-based: Acronis RMM

Acronis RMM: Built-in RMM operator role

We introduce a least-privilege role for remote monitoring and management tasks. The RMM operator can accomplish the following tasks:

  • Establish remote desktop connections.
  • Perform maintenance operations on devices, run remote command line.
  • Run approved scripts, and install approved software and patches.

Key Benefits

  • Enhances security and compliance.
  • Separates RMM operations from broader administrative activities.

Licensing

  • Available in all licenses.

Immutable storage: Disable only through support

Immutable storage can now be disabled only by contacting support.

Key Benefits

  • Enhances security and compliance
  • Eliminates the risk of human error or malicious tampering

Licensing

  • Available in all licenses.

Disaster Recovery: Support for Proxmox VMs

This release adds Disaster Recovery protection for Proxmox virtual machines with agentless backup and failover capabilities with site-to-site VPN connectivity via OpenVPN appliance.

Key Benefits

  • Supports test and production failover.
  • Supports agent-based automated incremental failback.

Implementation notes

  • DR in Microsoft Azure location is not supported.

Licensing

  • Solution-based: Backup and DR, Ultimate Protection.
  • Service-based: Disaster Recovery

Disaster Recovery: Support for Red Hat Enterprise Linux 9.x

The DR protection now extends to RHEL 9.x workloads, and supports both test and production failover.

Key Benefits

  • Ensures business continuity for Linux environments.
  • Supports all failback scenarios.

Supported Scenarios:

  • DR protection for RHEL workloads.
  • Test and production failover.

Implementation notes

  • DR in Microsoft Azure location is not supported.

Licensing

  • Solution-based: Backup and DR, Ultimate Protection.
  • Service-based: Disaster Recovery

Updated Components

Acronis Cyber Protection agent

The Acronis Cyber Protection agent has the following new versions.

  • Acronis Cyber Protection agent for Windows (v.25.11.41347)
  • Acronis Cyber Protection agent for Mac (v.25.11.41347)
  • Acronis Cyber Protection agent for Linux (v.25.11.41347)

For more information about the release history of the Acronis Cyber Protection agent, see the agent release notes.

Changes in the Acronis Cyber Cloud API

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

Fixed issues

Acronis Cyber Protect Cloud

Active Protection

  • [AMP-38751] Microsoft Windows displays notifications that the Antivirus protection is Off, even though Real-Time protection is enabled.
  • [AMP-29273] The Acronis Cyber Protection Service stops responding after a restart of the protected workload.

Agent

  • [ABR-383512] The Protection console does not reflect the actual progress of recovery operations.

  • [ABR-404218] During back up of virtual machines, the error “Invalid parameters were specified” is displayed instead of indicating that there are issues with disks or partitions on the protected workload.

  • ABR-410159] Agent updates might fail with the error "DIFXAPP: UninstallDriverPackages failed with error 0x2."

  • [ABR-410672] The installation of Agent for Linux might fail with the error "Failed to install the required package 'RPM' using APT. Please install it manually."

  • [ADP-40673] The automatic updates of Agent for Linux to version 25.8.41032 and later might fail with the error "SetStandbyModeFailed."

  • [ADP-43014] Anti-malware quick scan might fail with the error "Unable to Run task: 502."

Cloud integrations

  • [CI-32255] The cPanel Control Panel displays the message "There are no backups yet" instead of listing the restore points.

Common

  • [ABR-411723] Incorrect icon is displayed for Synology NAS.
  • [ABR-410380] Newly created backup replication plans do not appear in the Cyber Protect console.
  • [ABR-409970] The plan-specific alerts on the Protection tab are not synchronized with the Alerts tab.
  • [ABR-402169] The 'Delete' button is not available for offline workloads with very old agent builds.
  • [ABR-394915] Protection plans can be applied to users and groups simultaneously, while they should not. The following error occurs when trying to change the retention period on a cloud-to-cloud protection plan for Mailboxes: "Query parameter 'resource type' has invalid value 'USER'".
  • [PLTFRM-83017] The backup status for databases is not updated properly.

RMM

  • [PLTFRM-78187] The software Inventory is not updated properly after removing outdated software applications.
  • [REM-2113] Cyber Protect Connect might enable the cap locks on the remote machine.

Virtualization protection

  • [ABR-189882] The backup of Hyper-V VMs might fail with the error "Failed to get the disk information." if the file name of the virtual disk contains an ampersand.

Known issues and limitations

Acronis Cyber Protect Cloud

Autodiscovery and remote installation

  • [ADP-39185] Active Directory-based discovery does not operate as exepcted with the default configuration of Windows Server 2025 because it enforces LDAP encryption by default.

Backup

  • [ABR-408680] Proxmox VE: When performing parallel backup operations with 2 or more Linux-based Proxmox VMs, which contain LVMs and XFS file system inside, the backup activities may become unresponsive in some cases.

    • Solution: Reduce the number of parallel VM backups in corresponding protection plan (Backup options -> Scheduling)

  • [ABR-365442] The backup validation completes successfully, but the validation status is incorrect or missing in backup sets with a large number of backups.
  • [ABR-361097] It is possible to create backups with special characters in their names, but such backups are not accessible when saved on a network storage.
    • Solution: Do not use special characters in backup names, even though the application allows you to.
  • [ABR-305920] The backups of System state performed via the Windows Server Backup feature fail with the error message "The process cannot access the file because it is being used by another process."

Bootable media

  • [ABR-358235] WinPE-based media: Unable to browse backup files if the cloud storage location contains corrupted backup archives.

Cyber Protection agent

  • [ABR-371912] The Acronis SnapAPI module may require separate compilation after installation on Rocky Linux or Oracle Linux 8.7 distributions.
    • Solution: Compile the SnapAPI module manually after installing the Agent for Linux on a workload that runs on a Rocky Linux or Oracle Linux 8.7 distribution.

Disaster recovery

  • If the tenant (customer or partner) is disabled or deleted while an Automed Failover is in progress, the operation fails with the error "Please try again later or contact Support" while it should indicate that the tenant is no longer accessible.

Recovery

  • [ABR-371521] When browsing backup archives, the sorting of files by last change date does not work correctly.

Virtualization protection

  • [ABR-383978] No alert about almost reached storage quota is displayed for agentless Microsoft Azure VM backups.
  • [ABR-383972] No alert about exceeded storage quota is displayed for agentless Microsoft Azure VM backups.

For more information on known issues and workarounds, please visit our Knowledge Base.