# `mix continuum.gc_versions`
[🔗](https://github.com/Yyeger/Continuum/blob/main/lib/mix/tasks/continuum.gc_versions.ex#L1)

Lists or deletes unreferenced workflow-version registry rows.

    mix continuum.gc_versions --repo MyApp.Repo
    mix continuum.gc_versions --repo MyApp.Repo --execute

The task is a dry run by default. A workflow-version row is deletable only
when no non-terminal run references it and it is not one of the loaded
versions registered in the current BEAM.

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*Consult [api-reference.md](api-reference.md) for complete listing*