We’re excited to announce the release of the latest JetBackup v5.4.2 update! This release introduces support for immutable backups via S3 Object Lock, giving you an additional layer of protection against ransomware and unauthorized backup modifications. It also includes security dependency updates, enhanced email backup and restore capabilities, duplicate/clone destination options, and a new custom scheduling option for integrity checks—providing greater flexibility in maintaining overall backup health.

In addition to these features, this release delivers numerous performance, reliability, and usability improvements across the platform. From stronger backup validation workflows to refinements throughout the GUI, API, and core backup engine, this update is focused on making backup management more secure, efficient, and dependable for every environment.

New Features & Improvements

JetBackup – v5.4.2 (Base):

  • S3 Object Lock & Immutable Backups: Introduced S3 Object Lock support alongside a new Immutable Backups Wizard to help secure repositories against accidental deletion and ransomware. – #2611
  • Duplicate/Clone Destination Support: Added the ability to duplicate and clone existing backup destinations directly. – #2443
  • Orphan Backups Retention: Added dedicated retention settings to manage orphan backups. – #2440
  • Custom Scheduling for Integrity Checks: Added custom scheduling options and allowed custom times to be set for system integrity checks – #1995
  • Remote Account Support: Added core capabilities to support remote accounts during backup and restore routines. – #2587
  • GUI Security & Banner Updates: Banners are now hidden prior to successful 2FA authentication, and updated visual banner styles have been applied for Service, Sync Account, and Snapshot Cleanup tasks.– #2523, #2595

Bug Fixes

JetBackup – v5.4.2 (Base):

  • Updated the required jetmongod versions to 8.0.29 (or 4.4.31 for legacy compatibility) – #2611, #2597, #2561
  • Prevented repository locks for deduplication backup structure tasks – #2603
  • Treat downloaded deduplicated backups as incremental – #2602
  • Fixed cPanel Account Restore inproductsurvey scoped userdata chmod warnings on cPanel v136 – #2560
  • Resolved issue where Lock Homedir OFF preserved 700 permissions on HomeDir folders, preventing 403/404 web errors – #2445
  • Resolved “Too many open FD” errors when sockets are opened during operations – #2343
  • Automatic full SQLite database rebuild if initial rebuild fails – #1997
  • Fixed Dovecot Mbox files on storage folder failing to merge missing files – #1762
  • Adjusted order of operations for Bare Metal Recovery (BMR) backups to generate the ISO first and upload snap data last – #2248
  • Fixed thread execution failures leading to incorrect mailbox permissions – #2041
  • Automatically disable critical settings while executing Disaster Recovery routines – #2463
  • Fixed file permission searching and restore condition search functionality via API – #2462, #2459
  • Resolved infinite loop while checking verification ID in integrity check – #2400

JetBackup – v5.4.2 (cPanel):

  • Fixed inproductsurvey scoped userdata chmod warnings during cPanel v136 account restores – #232
  • Fixed improper restore of FTP accounts containing a period in the username – #229
  • Resolved end-user GUI error: “Failed loading panel preload information. Error: Unknown Error” – #228
  • Fixed backup issue where MySQL users using caching_sha2_plugin were not backed up – #172
  • Resolved item add function returning null – #230

JetBackup – v5.4.2 (Linux):

  • Resolved issue where empty EmailAccount path caused email backups to use .emptymail and restores to fail with “Can’t get email account path” – #85
  • Replace the input box for the PostgreSQL authentication database with a dropdown – #83
  • Resolved item add function returning null – #82

JetBackup – v5.4.2 (DirectAdmin):

  • Fixed incorrect group ownership for user home directories following account restoration – #228
  • Resolved SSL “Key is Invalid (Status Code: 500)” error when saving certificates – #230
  • Fixed Roundcube configuration restoration failure caused by .jb-roundcube directory ownership errors – #227
  • Resolved error when restoring Roundcube configuration via the restorepkg command – #225
  • Fixed issue failing to sync account alerts in Multi-Server Setup environments – #169
  • Resolved item add function returning null – #229

JetBackup – v5.4.2 (Plesk):

  • Fixed httpdocs directory group ownership changing to psacln during homedir restoration – #81
  • Resolved item add function returning null – #128

JetBackup – v5.4.2 (Webuzo):

  • Fixed missing parameters for add_user in Panel Config item restore – #31
  • Fixed account restores failing when terminate option was enabled – #4
  • Resolved item add function returning null – #33

Known Issues

The resolution of these issues is currently in progress!

  • Problems restoring Email Accounts when mail_partition is changed in DirectAdmin – JB5-Base #2371
  • Implement Email Forwarder backups – JB5-Base #2066
For more information on closed issues, please visit JetBackup Change Log.
For more information on new features, please visit JetBackup 5 Documentation.
If you would like to leave feedback, please visit JetBackup Forums.
If you would like to leave a new feature request, please visit JetApps Feature Request.