Skip to main content

24.2.0 'Mimas' released

· 3 min read

Mimas is the latest entry in our quarterly rollup series. It branches off from our main rolling Voyager development into a fixed target for our partners to qualify and build upon.

Mimas is named after a moon of Saturn, which in turn takes its name from an ancient Greek mythological giant. Mimas is relatively small compared to Earth's moon, with a diameter of about 396 kilometers (246 miles). Its composition is primarily made up of water ice with a small amount of rocky material. Its most distinguishing feature is a giant impact crater which stretches a third of the way across the face of the moon, making it look like the Death Star from "Star Wars".

As for the software, Comet 24.2.0 Mimas brings 3 new features and 14 enhancements, including Dark Mode for the Comet Server Web Interface.

As always for a new quarterly release, there are two changelogs for 24.2.0 Mimas depending on whether you are coming from the previous quarterly release or the previous Voyager release:

Changes compared to 23.11.4

New Features

  • Added a new Java SDK which allows customers to access the Comet Server API via JDK version 11+
  • Added a Debian package for linux clients which installs the Comet Backup desktop app as a systemd service
  • Added support for Dark Mode to the Comet Server web interface


  • Changed the order in which Before commands are executed when running a job. Storage Vault Before commands now run first and then the Storage Vault connection is checked. This resolves issues where Before commands were unable to be used to authenticate the connection to the Storage Vault as connections to the vault were made before running these commands. Before commands configured on a Protected Item or Schedule only run if the job is not skipped
  • Added a Storage Vault connection check at the start of each job to check if it's possible to continue with the job
  • Added additional warnings about being unable to remove buckets containing Object Locked files when setting Object Lock retention on a Storage Vault
  • Updated the appearance of badges for cross-organization users when logged in as the top level admin. Instead of displaying "Other Tenant" the badge now displays the tenant name on the Users, User detail, Client news and Storage buckets page
  • Changed "Job History" on the Comet Server web interface and Comet Backup desktop app to "Job Logs". The Job Logs page contains logs for both running and finished jobs
  • Added a new log message when temporary files are in use during either Backup or Restore jobs
  • Added the ability for top-level admins to create a new user in any tenant in the Comet Server web interface
  • Added support for custom HTTP headers in the "Custom Remote Bucket" Storage Template option
  • Improved the performance of S3-compatible Storage Vaults when Object Lock is enabled
  • Improved the performance of simulated restores for most Protected Item types
  • Added a Job History tab to the User details page which shows jobs for the selected user in the Comet Server web interface
  • Added server log messages to Comet Server startup to indicate when certain subprocesses have finished initializing
  • Added a S3-compatible (Object Lock) storage vault template type
  • Improved Microsoft 365 incremental backups of SharePoint Sites and OneDrive to be more efficient and quicker

Changes compared to 23.12.9

Bug Fixes

  • Fixed an issue during restore jobs where the error message "incomplete data" was displayed instead of the real underlying error message