Datto Endpoint Backup for PCs: Windows Agent Release Notes

Topic

This article contains all the software release notes for Datto Endpoint Backup for PCs. The latest updates appear first.

For more information about the Datto Endpoint Backup for PCs solution, see Getting Started.

Environment

  • Datto Endpoint Backup for PCs

Description

  • Releases consist of agent updates.
  • For information on updates to the cloud, refer to: Cloud Release Notes.
  • Datto pushes updates out on a rolling basis. You may not be updated immediately upon each new release. Update windows will vary, but are generally completed within one to two weeks of the initial release date.
  • When new releases become available, they are automatically pushed out and require no partner intervention unless otherwise noted.

Index

2024

2023

2022

2021

2020

2019

2018

Releases

Agent Version 3.0.19.12 - 06-26-2024

Bug Fixes

  • Agent Interaction with "Partially Loaded" Driver: Fixed an issue where the agent failed to back up due to interacting with a "partially loaded" driver.

Agent Version 3.0.19.9 - 06-04-2024

NOTE  A manual agent update will need to be performed, before the automatic agent update process will resume. For more information please refer to: Manual Update Required for Datto Windows Agents

Bug Fixes

  • Snapshot Handling: Fixed an issue causing missed file system changes and corrupted backups due to simultaneous creation of shadow copies by other software. Our agent now handles these situations better, ensuring reliable backups.

Agent Version 3.0.19.1 - 04-03-2024

Bug Fixes

  • Blue Screen Prevention: Resolved an issue that could cause a Blue Screen showing 'Inaccessible Boot Device' error. Agent logic has been updated to monitor the state of the cbtfilter driver. If the filter driver has been blocked, all backups will run as a diffmerge until the installation is completed successfully and the system is rebooted. Please make the recommended adjustments in your AV/EDR solution as detailed here.
  • Backup Timeout Fix: Fixed an issue where Endpoint Backup agents could time out prematurely during backup finalization, leading to failed backups.
  • Restore Point Reliability: Addressed a problem in Endpoint Backup Agents that could result in unrecoverable restore points and bluescreens during screenshot verification. To ensure backup integrity, impacted assets may promote the next backup to a diffmerge to maintain data consistency after this update.

Agent Version 3.0.17.5 - 07-19-2023

Bug Fix

  • Addressed an issue with French OS pairings
  • Addressed backup integrity issue.

Agent Version 3.0.17.3 - 06-23-2023

New Features

  • Datto Endpoint Backup with Disaster Recovery: This release supports the launch of our new product, Endpoint Backup for Servers. Additional information is available at datto.com

Improvements

  • Additional Log Level Configuration: Enhanced customization options in log-level configurations.
  • Automation for Changed Hostname: Hostname changes are now automated, reducing manual intervention.
  • Optimized Connection Timeouts: Improved connection timeout handling for enhanced performance.
  • Optimized Shadow Copy Calls: Streamlined shadow copy calls for a more efficient experience.
  • Updated Registration Page Links: Updated registration page links for new installations.
  • Optimized Yield Points: Yield points have been refined to ensure successful backups amidst multiple interruptions.
  • Security Updates: Boosted your protection with the latest security enhancements.

Bug Fixes

  • Pairing Info Storage and Restore: Resolved issues regarding pairing info storage and restore functionalities.
  • UUID Change Issue: Addressed the issue that affected UUID changes when upgrading from the 1.23 legacy agent to 2. x.
  • Detect and Exclude Hardlinks: Fixed issues with the detection and exclusion of hard links.
  • Prevent Agent Crash with ADS: The bug that led to agent crashes with certain alternative data streams (ADS) has been fixed.
  • Block Range Exclusions: Resolved issues with block range exclusions.
  • Agent Backup Status Changes in the API: Issues affecting the agent backup status in the API have been rectified.
  • Curl Error: We've addressed the Curl error related to writing response bodies.
  • Windows Versions Extents Buffer: Fixed the bug where Windows versions extents could read past a buffer.
  • Restore of Multi-Volume Assets: The issue where the agent could fail to restore multi-volume assets in some cases has been resolved.
  • VSS Writers Addition: Fixed the bug where VSS writers failed to be added in some cases.

Agent Version 3.0.15.2 - 10-25-2022

Improvements

  • Various backend updates, performance improvements, and bug fixes.

Agent Version 1.2.8.0 - 07-20-2022

Improvements

  • Miscellaneous backend enhancements

Agent Version 1.2.6.0 - 01-26-2022

Improvements

  • Miscellaneous backend security enhancements

Agent Version 1.2.5.0 - 09-27-2021

HotFix

  • This release includes certificate updates. Agents will be automatically upgraded over the next few days. You can also run the update manually by downloading the latest Datto Endpoint Backup version for Windows from download.datto.com.

Agent Version 1.2.3.0 - 12-10-2020

HotFix

  • Resolved an issue that could cause backups to fail due to SSL certificate errors.

Agent Version 1.2.2.0 - 10-26-2020

Improvements

  • Various bug fixes and performance enhancements.

Agent Version 1.2.1.0 - 08-25-2020

Driver Version 1.12.12.9

This release includes a driver update. You'll need to reboot your host system to start using the new driver.

Improvements

  • New driver version 1.12.12.9 (This is the same version that the latest Datto Windows Agent 2.6.0.0 uses.)
  • Improved I/O performance reduces server load during differential merge backups
  • Various improvements and bug fixes

Agent Version 1.1.6.0 - 05-28-2020

Improvements

  • Improved uninstall removes all agent files, but preserves registry data so a re-install can populate information for the agent.

Bug Fixes

  • Agent software no longer allows installing on 32 bit systems. Previous versions would allow installing even though 32 bit systems are not supported
  • Resolved an issue that prevented rtl8139 NIC option from working on virtualizations.

Agent Version 1.1.5.0 - 02-27-2020

Hotfix

  • Resolved an issue that caused some version 1.1.4 agents to send Windows event logs to the cloud when they should not have.
  • Fixed an issue that caused 1.1.4 agents to unnecessarily re-send agent logs to the cloud

Agent Version 1.1.4.0 - 02-14-2020

Bug Fixes

  • Resolved an issue that could cause boot failures on Windows 7 and Windows Server 2008 R2 virtualizations with the error message, "Windows cannot verify the digital signature for this file"
  • Fixed an issue that could cause agent deletions to fail

Improvements

  • Improved agent logging to improve the support experience for partners

Agent Version 1.1.2.0 - 01-13-2020

Bug Fixes

  • Resolved an issue that caused file restores to fail if a volume could not mount as read-write
  • Improved screenshot reliability by fixing an issue that could cause hung verifications
  • Resolved an issue that could cause the agent to crash if a volume selected to resume backups no longer exists

Agent Version 1.1.1.0 - 12-02-2019

Bug Fixes

  • Resolved an issue that could cause corruption due to the agent taking an extra snapshot if the first full backup experienced an interruption
  • Fixed an issue where the agent was unable to take a backup when the boot sector required modifications to write successfully
  • Resolved an issue that could prevent users from removing file restores from the restore page

Agent Version 1.1.0.0 - 10-22-2019

Driver Version 1.12.12.4

New Features

  • Datto RMM Integration: It is now possible to deploy the Datto Endpoint Backup for PCs Agent via Datto RMM. See our Deploying the Datto Endpoint Backup Agent via RMM article for more information.

Improvements

  • This agent release contains a new driver version designed to help prevent backup corruption. The driver update requires a reboot of the protected system to finalize the install.
  • If the Datto Endpoint Backup Agent installer detects that the RSA/SHA512 algorithm is disabled on a protected system, it will prompt to enable it during interactive installation or automatically enable it during silent installation.
  • When a new Datto Endpoint Backup certificate writes to the Windows cert store, the software now removes the previous certificate automatically.
  • The Datto Endpoint Backup Agent will automatically adjust its logging when connectivity is lost.
  • Datto has improved the SSL log messages on both the agent and server sides and adjusted the logging for Posix Errors.
  • This release improves the processing of server-side MercuryFTP write acknowledgments.
  • For RMM installs, the Datto Endpoint Backup Agent will no longer automatically open a browser for registration.
  • The Datto Endpoint Backup Agent will now avoid unnecessary periods of sleep during unthrottled backups.

Bug Fixes

  • Resolved an issue that could cause non-stop retries for Cloud Device snapshot failures
  • Resolved an issue which could cause the agent installer to display tags instead of expected text for Italian and Spanish installs
  • Resolved an issue with compression ratio logging server-side

Agent Version 1.0.9.0 - 10-07-2019

Bug Fixes:

  • Resolved an issue which allowed installation of the Datto Endpoint Backup for PCs Agent on Windows 8 machines even though it is not a supported operating system

Agent Version 1.0.8.0 - 09-22-2019

Bug Fixes:

  • Resolved an issue which could cause auto-upgraded 1.0.6.0 agents to be unable to complete backups

    Hotfix applies only to installations of the Datto Endpoint Backup for PCs Agent which auto-upgraded to Version 1.0.6.0 on or before 2019-09-22

Agent Version 1.0.6.0 - 09-18- 2019

Improvements:

  • Various bug fixes and performance enhancements

Agent Version 1.0.5.0 - 08-14-2019

Improvements:

  • Improved agent performance on slow/poor connections
  • Updated text on the last screen of the agent installer

Bug Fixes:

  • Resolved an issue which caused an unnecessary differential merge during a backup's final pass
  • Resolved an issue where the tray tooltip shows 0.0 b/s when preparing a backup

Agent Version 1.0.0.0 - 06-18-2019

Datto Endpoint Backup for PCs - Initial Release

Improvements:

  • Cloud-Based Bare Metal Restore: Device operators can restore a cloud-hosted backup to target hardware located anywhere in the world by using the new Datto Endpoint Backup for PCs Bare Metal Restore process. Learn more in our Bare Metal Restore - Getting Started article.
  • Enhanced Rapid Rollback: This improvement removes Rapid Rollback's requirement of original hardware being available to perform a restore successfully. Now, device operators can roll back to replacement hardware as long as its configuration matches that of the original.
  • Datto Endpoint Backup for PCs Launch. Our public beta ended on September 30, 2019.

Agent Version 0.5.0 - 05-24-2019

Improvements:

  • Portal-Based Bandwidth Management: On a per-agent basis, device operators can now configure maximum off-site sync bandwidth restrictions, and elect to pause backups when the protected system's internet connection is metered, from the Datto Endpoint Backup for PCs (formerly Direct to Cloud) portal.
  • The Datto Endpoint Backup for PCs (formerly Direct to Cloud) Status page now loads faster.

Agent Version 0.4.1.0 - 05-08-2019

Improvements:

  • Enhanced Cloud Virtualization User Experience: Cloud restores now leverage the same user experience as the BCDR Recovery Launchpad to deliver a seamless and familiar disaster recovery environment across product lines.
  • Improved Agent Backup Progress Reporting and Management: Through the Datto Endpoint Backup for PCs (formerly Direct to Cloud) Agent tray icon, device operators can suspend, resume, and view enhanced reporting about the backup activity.
  • Deletable Backup Agents: Partners can now remove agent datasets from the Datto Cloud without needing to contact Datto Technical Support for assistance.
  • Screenshot Verification: To deliver you the peace-of-mind that your backups are in a healthy and restorable state, Datto Endpoint Backup for PCs (formerly Direct to Cloud) will perform screenshot verification of the first backup of the day for each of your protected systems. This feature automatically builds and boots virtual machines from preexisting snapshots and performs context-sensitive tests against the virtual machine's output to evaluate a pass or fail state. It reports the outcome via success and failure emails; you can also review the results of the latest screenshot test via the Datto Endpoint Backup for PCs (formerly Direct to Cloud) portal.
  • Email Alerting: This release introduces the ability for partners to subscribe to email notifications about agent registration and management activities, screenshot verification outcomes, and check-in failures for endpoints protected by the Datto Endpoint Backup for PCs (formerly Direct to Cloud) Agent.

Agent Version 0.3.5 - 03-18-2019

Agent version 0.3.5 is a significant overhaul of the original DTC beta agent. It includes the latest Windows snapshot drivers, and it lays the foundation for the next major upgrade.

  • Your existing Datto Endpoint Backup for PCs (formerly Direct to Cloud) installation will not auto-update to the latest version. To learn how to update your agent software, follow the steps in our Direct To Cloud: Installing Agent Version 0.3.5 article.
  • You must update your Datto Endpoint Backup for PCs (formerly Direct to Cloud) Beta to the latest version before March 25, 2019. Any Datto Endpoint Backup for PCs (formerly Direct to Cloud) Betas not updated by March 25th will stop taking backups and will no longer work as expected.

Improvements:

  • Expanded Compatibility: The Datto Endpoint Backup for PCs (formerly Direct to Cloud) agent can now back up and restore Windows 7-based endpoints.
  • Improved File Restore: When restoring the files of a protected endpoint, the user interface will now mirror the Recovery Launchpad experience.
  • Bandwidth Throttling: Device operators can now set offsite synchronization bandwidth limitations through the agent tray icon.

Agent Version 0.2.3 - 11-27-2018

Improvements:

  • The snapshot process now includes the Datto Endpoint Backup for PCs (formerly Direct to Cloud) Agent's executable

Bug Fixes:

  • Resolved an issue which could cause the Datto Endpoint Backup for PCs (formerly Direct to Cloud) agent to display an empty dialog box under certain conditions

Agent Version 0.2.1 - 10-29-2018

Improvements:

  • Updated agent installer to be WIX/MSI-based
  • Updated drivers to be more resilient to OS changes (set at version 1.12.8)
  • Added support for metered network policy
  • Reduced verbosity in agent logs
  • Added support for agent log replication to cloud servers
  • Improved the user experience for scenarios in which registration information is not available
  • Updated multi-pass policy to achieve faster backup completion time
  • Added tray notification to alert users when the protected system's OS volume is not a candidate for backup

Bug Fixes:

  • Fixed an issue which could cause backup corruption due to invalid parsing of the unused volume bitmap
  • Fixed an issue which caused excessive memory allocation when excluding unused space on a volume

Agent Version 0.1.22 - 10-17-2018

Improvements:

  • Increased idle bandwidth throttle limit from 250 KB/s to 1 MB/s
  • Changedthe interval at which log files upload, from 12 hours to 1 hour
  • Added ability to extract and log the kernel OS version

Bug Fixes:

  • Resolved an issue where backups would repeatedly fail when trying to process a file name that could not convert to UTF-16
  • Fixed an issue which could cause backup corruption when handling previous Windows installation directories symlinked to the live Windows directory

Agent Version 0.1.21 - 09-11-2018

Improvements:

  • Improved retry logic for MercuryFTP transport operation failures, such as replay operations which failed
  • Re-enabled and expanded index of excluded previous Windows installation folders

Bug Fixes:

  • Resolved an issue where attempting to disconnect an open MercuryFTP transport would hang the backup indefinitely
  • Resolved an issue in which a MercuryFTP transport disconnect would cause various threads to retry and fail to connect
  • Resolved a backup corruption issue which could occur due to a Windows Update that used hard-links between excluded folders and the Windows folders, or due to a large number of deleted temporary files in one of the excluded folders triggering the exclusion of the MFT

Agent Version 0.1.20 - 09-04-2018

Improvements:

  • Added support to transfer dump files generated by either the agent service or the tray application
  • Updated dependencies to work with the latest version of VS2017 linker

Bug Fixes:

  • Resolved an issue which caused the timestamp of newly-registered backups to reflect local time instead of UTC
  • Addressed an issue which could cause a loss of backup statistics during engine switching from driverless to a driver-backed mode
  • Fixed an issue which could cause the offsite log to report activity from an active backup with the ID of a pending backup

Agent Version 0.1.19 - 08-16-2018

Improvements:

  • Various logging improvements and networking optimizations

Agent Version 0.1.18 - 07-23-2018

This release fixes two memory issues and an inconsistent memory allocation problem. To prevent your agent software from consuming all of its protected machine's memory, Datto recommends updating to the current release as soon as possible.

Improvements:

  • Enabled limited remote configuration to aid in problem diagnosis
  • Added additional checks to the backup process
  • To prevent backup corruption, read failures now cause the backup to restart instead of continuing

Bug Fixes:

  • Resolved two memory leak issues and an inconsistent memory allocation problem
  • Fixed an issue which could cause a crash in the Tray application
  • Addressed an issue which could cause the agent to be unregistered after specific Windows updates
  • Resolved an issue which could cause the agent software to crash in certain network disconnection cases

Agent Version 0.1.17 - 07-10-2018

This release includes a new driver version, which will require a reboot of the protected machine to complete.

Bug Fixes:

  • Resolved an edge case which could cause backups to not complete as expected under specific circumstances
  • Fixed an issue which could cause the protected machine to encounter blue screen failures during agent installation
  • Resolved an issue that caused the Windows USB connection sound to play with every backup

Agent Version 0.1.16 - 06-19-2018

New Features

  • Initial release