NEWS


cohort 2026.8.21

cohort 2026.8.6

Licensing

Bug fixes

Documentation

cohort 2026.8.3

Documentation

Documentation only. No behaviour changed, and no runtime message, warning or error string changed.

cohort 2026.7.27

Bug fixes

cohort 2026.6.23

Bug fixes

cohort 2026.5.10

Initial release.

Display labels and API simplification

Cache integrity

Incremental caching (new)

Branding

Features

The freeze rule

A cohort becomes frozen the first time another cohort branches from it, or the first time an artifact is set on it. After freezing, $exclude_and_track() on that cohort errors. The rule guarantees a cohort's name maps to exactly one definition forever and that cached artifacts stay consistent with the included rows that produced them. Multi-way forks are unaffected.

Implementation notes