cromwell

92 Release Notes

WDL 1.1 Support

• Cromwell now fully supports WDL 1.1. Users can specify Version: "1.1" in their workflow options to use WDL 1.1 features. See the WDL 1.1 Spec

Migration of PK to BIGINT

The PK of the JOB_KEY_VALUE_ENTRY table will be migrated from INT to BIGINT.

AWS ECR Docker Remote Hashing

• Fixed an issue...

91 Release Notes

Removal of Google LifeSciences backend code

Code related to the Google's Cloud LifeSciences API (Papiv2 or v2Beta) has been removed following Google’s shutdown of the service in July 2025. Google Batch (batch) is now the supported GCP backend.

GCP Batch

• Task log files are now included in the group of files copied for call cache hits.
• Tweak automatic retry...

90 Release Notes

GCP Batch

• Cromwell now supports automatic use of the GAR Dockerhub mirror, see ReadTheDocs for details.
• VM initialization time in now included in estimated cost calculation for jobs.

Bug fixes

• Fixed a concurrency bu...

89 Release Notes

Improvements

• Cromwell can now provide estimated costs incurred by a workflow run on GCP, read more in CostEstimation in ReadTheDocs.

GCP Batch Updates

• Add 30 GB default VM boot disk size to user-requested boot disk size; this ensures the VM has room for large user command Docker images.
• Fix a bug that caused Cromwell to treat immediate preemptions as failur...

88 Release Notes

Important Upgrade Note: Database Schema Change

Cromwell 88 includes a number of database schema changes to support new functionality and improve performance. Users should expect a longer-than-usual database migration due primarily to the IX_METADATA_ENTRY_WEU_MK index added to METADATA_ENTRY. In pre-release testing, this migration proceeded at about 3 million rows...