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25.6.1 Feature Release

January 30, 2026

  • DAGMan now uses the new DAG file parser used by condor_dag_checker
  • The condor keyboard daemon now checks idle time via systemd and Mutter
  • Can now specify DAGMan rescue file by name
  • Adminstrators can now require units on retry_request_memory
  • Initial support for openSUSE 16
  • Make HTCondor Python wheel usable with the python-slim Docker image
  • Fix problem specifying scope or audience with a Vault-managed credential
  • Fix late materialization bug when job transform sets immutable attribute
  • Fix problem where a backfill slot would refuse claims
  • Fix floating point memory or disk request not fitting into some slots
  • Fix condor_rooster crash when unhibernate rank was not constant
  • Fix memory leak in the htcondor2.JobEventLog.events() Python method
  • condor_history -long now prints attributes in alphabetical order
  • Fix LVM setup to not timeout when creating a large volume
  • LVM creation no longer saves meta data which eventually fills the disk
  • HTCondor tarballs now contain Pelican 7.22.0
    • More robust error classification in the client
    • Fixed authentication loop issue in the client
  • HTCondor tarballs now contain Apptainer 1.4.5

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.

25.0.6 Long Term Support Release

January 30, 2026

  • Initial support for openSUSE 16
  • Make HTCondor Python wheel usable with the python-slim Docker image
  • Fix problem specifying scope or audience with a Vault-managed credential
  • Fix late materialization bug when job transform sets immutable attribute
  • Fix problem where a backfill slot would refuse claims
  • Fix floating point memory or disk request not fitting into some slots
  • Fix condor_rooster crash when unhibernate rank was not constant
  • Fix memory leak in the htcondor2.JobEventLog.events() Python method
  • condor_history -long now prints attributes in alphabetical order
  • Fix LVM setup to not timeout when creating a large volume
  • LVM creation no longer saves meta data which eventually fills the disk
  • HTCondor tarballs now contain Pelican 7.22.0
    • More robust error classification in the client
    • Fixed authentication loop issue in the client
  • HTCondor tarballs now contain Apptainer 1.4.5

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.