HTCondor Download

25.12.2 Feature Release

July 21, 2026

This release contains an important fix for a security issue. Affected users should update as soon as possible.

More details on the security issue are in the Vulnerability Report: https://htcondor.org/security/vulnerabilities/HTCONDOR-2026-0001

  • Maintains a job index to speed up condor history queries
  • Can now set a duration for a user’s floor or priority factor
  • DAGMan will go into cool-down if it fails to launch
  • Improved column headers for condor_top
  • Audit log is now enabled by default on the Access Point
  • Fix rare job router crash when removing a recently routed job
  • Fix a bug that could cause the arc_gahp to crash
  • Reduce the size of Python wheels by 84% by removing debug symbols
  • Fix issue where tools could infinitely loop when using trust on first use

Feature releases distribute HTCondor's new features and also incorporates bug fixes. Most people should use choose this channel and stay up-to-date with HTCondor's latest features.

Consultation of the Detailed Notes recommended prior to upgrading.

25.0.12 Long Term Support Release

July 21, 2026

This release contains an important fix for a security issue. Affected users should update as soon as possible.

More details on the security issue are in the Vulnerability Report: https://htcondor.org/security/vulnerabilities/HTCONDOR-2026-0001

  • Fix rare job router crash when removing a recently routed job
  • Fix a bug that could cause the arc_gahp to crash
  • Reduce the size of Python wheels by 84% by removing debug symbols
  • Fix issue where tools could infinitely loop when using trust on first use

Long Term Support (LTS) releases only bug fixes to a particular, fixed set of features from the current LTS channel. As a result, each LTS channel tends to become more stable over time; read the release notes from the current channel to make sure you aren't missing any features you need.

If you can't regularly upgrade your machines, this may be the channel for you.

Periodically, we will update the set of features that we support with bug fixes and start a new LTS channel. This will not the change the set of features available to an existing or automatically-updated installation of a LTS channel; you have to make the decision to change manually. However, after a time, we will stop issuing additional bug fixes for older LTS channels.

Consultation of the Detailed Notes recommended prior to upgrading.