Section 048 · Chapter 7, Release Readiness for AI Systems
Regression Testing When Outputs Keep Changing
When exact outputs drift, regression testing has to protect invariants, not fossilize yesterday's wording.
regression testingregression outputs keep changing
What to do
- Define what must remain true: required facts, policy boundaries, refusal behavior, ranking relevance, citation grounding, tool permission checks, or latency limits.
- Define runnable checks that exercise regression testing and regression outputs keep changing.
- Set acceptable outcomes and blocker failures for regression testing and regression outputs keep changing before running the evaluation.
Evidence to preserve
- Preserve the inputs, versions, configurations, raw outcomes, and results for regression testing, regression outputs keep changing needed to reproduce work on Regression Testing When Outputs Keep Changing.
- Report results for regression testing, regression outputs keep changing by relevant slice, separate blocker failures from averages, state uncertainty and blind spots, and connect the result to a release decision.
Expert note
The deeper move is to keep separate baselines for examples, rubrics, labels, model versions, and judge versions. A regression can come from the product, the evaluator, the dataset, or the policy changing underneath the test.
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Cite this page
Jason Arbon. "Regression Testing When Outputs Keep Changing." Testing AI Knowledge Edition, section 48.
https://jarbon.ai/testing-ai/knowledge/ch048-regression-outputs-keep-changing.html