Duplicator Pro (Business) Version History

* [FIX] Fixed a bug that in some cases caused a false-positive “build stuck” error.
* [FIX] Fixed staging site creation failing when the source backup used archive encryption.

* [UPD] Raised Google Drive upload chunk size default from 256 KiB to 8 MiB for improved upload performance.
* [UPD] Improved visual indicator for successful storage connection tests.
* [UPD] Improved color contrast for better accessibility in admin UI elements.
* [FIX] Fixed an issue where a failed upload to one storage could block all remaining storages indefinitely, preventing backups from completing.
* [FIX] Fixed OAuth token refresh for Google Drive, OneDrive, and Dropbox where a temporary server failure could permanently break storage authorization.
* [FIX] Fixed the storage list page crashing when a cloud storage provider returns an unexpected error during validation.
* [FIX] Fixed the support toolkit’s “Failed Backups” download being empty when accessed more than 6 hours after a backup failure.

* [FIX] Fixed an error during manual backup transfer caused by invalid storage IDs
* [FIX] Fixed potential fatal errors when removing plugin capabilities if a user or role no longer exists

* [NEW] Added Staging Sites feature (Pro/Elite only): create and manage isolated WordPress staging environments in subfolders directly from the Duplicator admin; includes automatic database isolation with unique table prefixes, automatic exclusion of staging tables from production backups, license management (auto-activation after migration, deactivation on deletion), safety restrictions (email blocking, search engine indexing disabled, Duplicator menus hidden, visual admin bar indicator on both frontend and backend), and support for multiple staging sites per installation
* [NEW] Integrated Activity Log support: failed backups are filtered from the main backup list and tracked in Activity Log with automatic 6-hour cleanup; backup deletions, storage removals, and orphan file cleanup are now fully audited with detailed metadata; admin notices guide users to Activity Log when failures occur
* [NEW] Backups stored exclusively in Duplicator Cloud can now serve as recovery points without requiring local storage; the restore configuration file is now uploaded alongside every backup with structured eligibility metadata
* [UPD] Improved backup upload performance: storage validity is now checked once at upload start instead of on every batch iteration
* [UPD] Backup storage directory renamed from backups-dup-pro to duplicator-backups; existing installations are automatically migrated on upgrade
* [UPD] Plugin version is now displayed in the backup details row
* [UPD] Cloud downloader files are now detected during pre-backup validation and automatically removed during post-installation cleanup
* [FIX] Fixed FTP (cURL) adapter returning empty file listings on Windows FTP servers (IIS) due to trailing \r characters in filenames
* [FIX] Fixed FTP (cURL) adapter temp file leaks that could cause disk exhaustion on high-volume backup servers
* [FIX] Fixed intermittent file-read failures on NFS/clustered hosting environments (e.g. SiteGround) by adding retry logic with cache clearing
* [FIX] Fixed fatal PHP error during database scan when MySQL returns NULL for table statistics on InnoDB tables
* [FIX] Fixed JavaScript security vulnerabilities (Handlebars RCE/prototype-pollution, formstone XSS) by updating npm dependencies

* [NEW] Added “Delete All Logs” button in Settings > Advanced to manually clear all activity log entries on demand.
* [UPD] Improved Duplicator Cloud storage capability checks to prevent error notices on sites with restricted storage permissions.
* [FIX] Fixed an issue where storage configurations (S3, FTP, SFTP) could be saved with empty required fields, causing the Storage page to become unusable.

* [UPD] Improved Duplicator Cloud upload reliability by automatically recovering from expired URLs during long-running transfers.
* [FIX] Fixed remote storage uploads failing on Windows servers due to path handling issues.
* [FIX] Fixed Windows junction directories not being included in backups by improving directory scanning compatibility.