FA-9545 / Version constraints / Member archive

Compatible release admission: Compatibility extends through the next incompatible release · case 05

Compatibility extends through the next incompatible release.

Member previewVariant 5 · 3 implementations · 25 checks per implementation

Case contract

Accept candidate tuple if not excluded, at least the lower release, below the compatibility ceiling, and prerelease only when opted in; exact pins additionally require equality.

Why this case matters

An offline model of compatible release admission, suitable for testing build and release tooling without external services.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fixture 16	`true`	`false`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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