Release: 2.2.0.104 (Canary) 2026-02-06

Releases
1

2.2.0.104_canary_2026-02-06

This release is a canary release intended to be used for testing.

Changes in this versions

Locking and protection

This version extends on the remote file locking feature added in 2.2.0.103, to now also include locking support for Google Cloud Storage (GCS), as well as a policy mode option for Azure Blob Storage.

This version also adds a new option --soft-delete-prefix which enables the soft-delete feature.
When soft-delete is enabled, files are renamed (or moved) to a new location instead of being deleted.
For destinations that support lifecycle management, this can be used to setup access such that Duplicati cannot delete a file, but can rename/move it.
When Duplicati wants to delete a file, it will instead rename/move the file to a new location, and the lifecycle management or other tool can be used to delete the files with a specific prefix after a certain period of time.

Remote sources

Remote sources have been supported, even in the current stable release, but the usage required some difficult manual string construction.
This version adds support for remote sources in the UI, and makes it easier to use remote sources, with a prominent button on the source page.

Besides making remote sources easier to use, this version also adds support for using Box, Dropbox, OneDrive and Google Drive as remote sources.

Office 365

This version adds support for backing up Office 365 tenants, including mailboxes, calendars, contacts, OneDrive, Planner, Tasks, Teams, Sites, and more.

Like the rest of Duplicati, the source code for this is available, but unlike the rest of Duplicati, this feature is not OSI open-source, and requires a license to use in production.
In the current version, there is a limit of 5 users + 5 sites + 5 groups for testing.

If you prefer a clean OSI open-source build, you can set the environment variable DUPLICATI_DISABLE_PROPRIETARY_MODULES or simply delete the files named Duplicati.Proprietary.* from your installation.

Templating engine for reporting

Thanks to @AndyBodnar, it is now possible to use a Handlebars template to format the report output, which is especially nice for crafting emails.

Quality of life fixes

This version now saves the current state of the commandline-inside-the-UI feature, so when you go back, it will retain the setup, making it much simpler to iterate and try out commands.

We also added the long-requested “Edit as text” option to the source paths and filters, so you can now either use the UI or edit the paths and filters as text.

The releases now also include an AppImage for Linux, so it can be used on Linux without needing to install it.

Finally, we added support for the Hungarian, Czech and Polish languages. Thanks to the super translators!

Bugfixes

This version includes a number of bugfixes targeting stability, where Duplicati now handles more edge cases, and is more robust against errors.

Additionally:

  • The --dry-run option has been fixed to strictly not touch data.
  • The --changed-files option has been fixed to not introduce extra dangling file entries.
  • The purge operation has been fixed to count size reduction more correct, use a faster query, and an option to disable size stats, should it still be too slow.
  • Filen MFA login was updated a bit but the fix does not create long-lived tokens yet.

Detailed list of changes:

  • Added check for temporary space before starting server + restore operation
  • Fixed an issue with testing on remote sources when masked
  • Added support for reading DUPLICATI__REGISTER_REMOTE_CONTROL environment variable from Agent
  • Added Selectel S3 hostnames
  • Prevent restore outside of designated target folder
  • Added macOS snapshot support
  • Added encryption and masking of remote sources in logs and UI
  • Improved SSL certificate handling for WebDAV when testing
  • Added Office 365 backup support
  • Fixed cross-OS remote source path handling
  • Implemented rename operation on backends
  • Fixed purge size calculation to only include blocks once
  • Added guard against invalid entries in DeletedVolume table
  • Fixed manual changelist logic for --changed-files option
  • Fixed issue with failed delete causing database inconsistency
  • Handle missing blocks on recreate to prevent database issues
  • Improved support for remote sources
  • Fixed dry run functionality
  • Added support for GCS object locking
  • Added restore path to log output, thanks @WhiteElephantIsNotARobot
  • Improved commandline execute functionality
  • Added automatic 3-2-1 backup rule support
  • Fixed issue with missing log entries when errors occurred
  • Added soft delete support
  • Improved query for purge broken files with --reduced-purge-statistics option
  • Fixed missing event on data update
  • Fixed Filen MFA login (but still broken)
  • Fixed cross-OS restore issues
  • Added AppImage builds
  • Added policy mode for Azure locking
  • Added templating engine support, thanks @AndyBodnar
  • Fixed spelling mistake for supplementary groups
  • Updated S3 NuGet dependencies

ngclient changes:

  • Added Selectel to list of S3 providers
  • Added autocomplete attributes to password fields
  • Fixed issues with masked urls not correctly working with test buttons
  • Fixed an issue with setting a blank path on initial load of FileTree
  • Fixed an issue that prevented save of an unencrypted backup
  • Fixed issue with recursive loading of paths in FileTree not working
  • Fixed issue with FileTree resetting the path on load in some cases
  • Updated FileTree to show which folder is currently expanding
  • Fixed a loading race that could clear an input
  • Rewrote most of the test handling for backends to use a shared component
  • Fixed wrongly saving draft backups while editing
  • Avoid requesting invalid data in FileTree browser
  • Added tooltip showing current file being processed
  • Keep state when navigating back to commandline UI
  • Added placeholder and hints to the commandline screen
  • Validate input before saving a backup to give better error message
  • Changed button text on theme switcher to indicate an action
  • Show SSH as “SFTP (SSH)”
  • Added new locales
  • Updated locales
  • Updated browser mapping
  • Fixed broken link to usagereporter
  • Hide button with no action in source view
  • Updated source lists and filter lists to allow “Edit as text”
  • Fixed bug with Create Folder and masked urls
  • Added support for Office 365 backup and restore
  • Fixed typo preventing TrayIcon login toggle from working
  • Added button to add remote sources to a backup
2 Likes
2

I updated my machines, all the Windows servers updated fine and backups are running, but for Linux (Fedora/Debian), I had to comment out SupplementaryGroups=$SUPPLEMENTARY_GROUPS in the .service file as it would not start:

 A start job for unit duplicati.service has finished successfully.
░░
░░ The job identifier is 15914.
Feb 09 07:45:40 KANG (i-server)[159482]: duplicati.service: Failed to determine supplementary groups: No such process
Feb 09 07:45:40 KANG (i-server)[159482]: duplicati.service: Failed at step GROUP spawning /usr/bin/duplicati-server: No such process
░░ Subject: Process /usr/bin/duplicati-server could not be executed
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░
░░ The process /usr/bin/duplicati-server could not be executed and failed.
░░
░░ The error number returned by this process is 3.
Feb 09 07:45:40 KANG systemd[1]: duplicati.service: Main process exited, code=exited, status=216/GROUP
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░
░░ An ExecStart= process belonging to unit duplicati.service has exited.

The value in the override file is just SupplementaryGroups=

3

How does this work?

Also, would I set this just to “true” or something else?

4

I have re-opened the issue that introduced this:

The 3-2-1 backup was only in the list of detailed changes because we did not get the UI ready in time for the canary build. Next canary will include a UI for choosing additional destinations.

You can read the current (commandline) format here:

Any non-whitespace string will disable it.

1 Like
5

@Taomyn What distribution/version are you having trouble with SupplementaryGroups on?

6

I use Fedora Server 43 and Debian 13, both had the same problems

7

This definitely doesn’t work the way it’s set up in the .104 canary. I put some details in the linked GitHub issue, but in short there are two options the devs can take to resolve this.

If you need this functionality, either method is relatively easy to implement in your existing environment and would like be durable even through the issue getting fixed in the next release.

8

Hey Duplicati team & community!

I am interested in Duplicati Office 365 backup.
I was trying to find out how much it would cost to get the correct license for my use case (~300 Office 365 users). I was not able to find the correct information. On the duplicati website it says “$5 per device/month” for the Pro license.
I think this is not correct as I assume devices to not translate to Office 365 users?
E.g. Nakivo has a separate license for the Office 365 part and charges 0,70 USD per user per month.
Does the Duplicati pricing site need to be updated as this feature is very new?

I’d be thankful if someone could enlighten me in this case.

Thanks in advance and best regards!

9

Hi @MajorP93, welcome to the forum :waving_hand:

The Pro license is for machines connected to the console, and does not relate to the Office 365 backup feature. You do not need to use the console to use Office 365 backup.

Yes. We only have a mention of the Office 365 feature on the site, but no public pricing for the feature yet.

For now, you can write to sales@duplicati.com and we can discuss details.

1 Like