Make main/last-frame toggle state authoritative over queued role snapshots and recursively prune serialized required-consumer branches that become invalid when an Image Conveyor output is disabled.
Includes regression coverage for stale queue reservations, reference-only execution, required/optional pruning boundaries, and queue-group compatibility.
Release vehicle for Image Conveyor v1.6.0.
Adds backend-authoritative main/reference output toggles, a dedicated queue-driven last_frame output, deterministic queue-role snapshots, disabled-branch prompt pruning, append-only saved-node migration, and v1.6.0 release metadata.
Validated in live ComfyUI and by the complete GitHub Actions suite.
xmarre