Duplicati v2.3.0.108_canary_2026-07-20

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

If no major faults are found, this release is intended to be the basis of the next beta release.

MS365 subsites and shared mailboxes

This release improves the Microsoft 365 backup support with two additions. Support for backing up SharePoint subsites has been added, making it possible to include sub-sites beneath a site collection in a backup.

The handling of shared mailboxes has also been improved, with better detection and enumeration of shared mailboxes within a tenant.

The license counter now excludes shared mailboxes without a license, and supports top-level filtering of users/sites/groups based on classification.

An extra information button is added to the source page that shows a summary of what content was found in the MS365 tenant.

Case-insensitive remote filename matching

A new option has been added to perform case-insensitive matching of remote filenames. This helps with backends that do not preserve filename casing, and prevents issues where files cannot be found because of case differences.

Improved filter parsing

The filter parsing logic has been improved to handle more edge cases and produce more predictable results when building filter expressions.

Added wipe-encryption to database tool

The database tool now supports a wipe-encryption command that can be used to remove all encrypted fields from a server database. With this command it is possible to get an encrypted database back into a state where it can be opened again. After encrypted fields are wiped, the user can then edit backups and settings to replace the lost data.

Detailed list of changes

• Make BackendTester actually retry failed uploads, thanks @JamBalaya56562
• Fix --restore-preallocate-size option having no effect, thanks @JamBalaya56562
• Re-introduce insecure-permissions.txt file in install folder
• Use the application data folder for the control directory filter, thanks @JamBalaya56562
• Fix several options declared as Integer that are not integers, thanks @JamBalaya56562
• Add case-insensitive remote filename matching, thanks @JamBalaya56562
• Fix broken date-time format strings, thanks @JamBalaya56562
• Fix secure-datafolder for service permissions
• Log errors when user-supplied settings fail to parse, thanks @JamBalaya56562
• Support MS365 subsites in backup and restore
• Updated all translations, thanks to all translators
• Fixed pulling mulitple new languages
• Improve MS365 shared mailbox handling and item classification
• Improve filter parsing with regards to embedded path separators
• Fixed restore-control-files with non-standard options
• Unify --datafolder option name in configuretool
• Fail the backend test when verification finds a problem, thanks @JamBalaya56562
• Use local executable name for configuretool
• Fix loading of locale files with hyphenated culture names, thanks @JamBalaya56562

UI updates

• Added option to manually start a console-managed backup
• Added tr and ko languages to the UI
• Updated all translations, thanks to all translators
• Fixed an error attempting to save a backup with a schedule
• Added button to show MS365 tenant counters