New Pioreactor release: 26.9.0

Software
1

:wave: New update! Some bug fixes, camera improvements, and UI improvements in this release.

:arrow_down: Download release

26.9.0

Breaking changes

  • MCP changes:
    • Renamed MCP tools get_pioreactor_unit_capabilties to get_pioreactor_unit_capabilities and assign_workers_to_experiment to assign_worker_to_experiment.
    • Changed MCP job-launch options to require a JSON object with scalar values, such as {"target-rpm": 500}, instead of a JSON-encoded string. Stopping jobs now requires an explicit pioreactor_unit; use "$broadcast" to target all workers in the experiment.
    • Removed the extra {"result": ...} wrapper from MCP list responses. Unavailable workers now return null in capability results instead of an empty list.
    • Restricted MCP db_query_db to a single SELECT query and changed its response to {rows, row_count, truncated}. Queries return at most 100 rows by default; set limit up to 1,000. MCP log requests now require lines between 1 and 1,000.

Enhancements

  • use [camera].use_ir_led to control whether the camera should work with the IR LED or not.
  • adding Experiment tags as an exportable dataset.
  • Ability to select and reorder charts on the Experiment Overview and Pioreactors page.
  • Added the ability to name camera snapshots when capturing them and rename existing photos from the Camera Stills page.
  • Added a labelled air_bubbler sparger to bioreactor diagrams when the pioreactor-air-bubbler plugin is configured, with highlighting while it is active.
  • Improved MCP tool discovery with read-only annotations, clearer job-control guidance, and more detailed capability summaries. Added SQL query parameters for safely supplying values with ? placeholders.
  • More clear icons in the UI

Bug fixes

  • Fix “Now” time selector on the UI.
  • Fix experiment filter in Experiments database export.
  • Fixed experiment-profile pause, resume, and setting updates so they still reach jobs that start while the action is running.
  • Fixed PWM pumps not releasing their worker when interrupted, which could leave them running after a command was stopped.
  • Fixed MCP calls waiting indefinitely for background tasks by bounding polling and reporting when an operation may still be running. Improved API error details and handling of experiment names containing URL-reserved characters.

How to update

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Something up with the SQL updater not running, you may see an error like

No such table: experiment_chart_preferences

Working on a fix now.

Edit: This is resolved. If you experience this error, (re-download the release archive and) try updating again.