The 4th and final beta release of Cylc 8 is now available Thanks to the dev team!
Cylc 8.0b3 is the final beta pre-release of Cylc 8. It is largely complete and can be used to manage real workflows, but it has not yet been heavily tested by users. Python 2 based Cylc 7 is stable and still available if needed for production systems.
Please report migration issues to the Cylc Discourse Forum (7-to-8 topic).
We’d like to encourage all users to get started working with Cylc 8 now, with this release.
There are some major enhancements, to complete the core feature set of Cylc 8, including:
- A hub-less mode for single-user installations
cylc guistarts a UI Server with token-based authentication
- New syntax to distinguish optional and expected task outputs
- This supports optional graph branching (without suicide triggers) and allows the scheduler to correctly diagnose workflow completion
- Configurable multi-user authorization - you can authorize others to read or control your workflows
- (However manual URL manipulation is currently required to see the other user’s UI Server)
- Hierarchical “gscan” sidebar in the UI, for hierarchically organized groups of workflows
- All commands automatically infer latest workflow run number (
- Online documentation fully upgraded for Cylc 8
- (There are bound to be some remaining errors and omissions; just ask on this forum!)
- (Tutorials converted for Cylc 8, but have some known problems; a rewrite is in the works)
This is all, of course, on top of previously announced features. For a complete description of how Cylc 8 differs from Cylc 7 see:
Installation instructions are in the online docs too:
For remaining caveats (for instance, you can’t yet get job log files from the new GUI, but you can from the command line; and we don’t yet have graph visualization in the GUI) see:
Feel free to report any problems you run into, on this forum.