Revision policy
Product generations are separated only when explicit identity evidence supports the split.
Revision scope
Color and size variants normally collapse into one product. Generations split only when manufacturer SKUs, GTINs, explicit years, or separate source product identifiers distinguish them. Review date alone never assigns a review to a generation.
Model-family labels
If a source pools reviews across revisions that cannot be separated honestly, the aggregate is labeled model-family evidence. The label is carried through HTML, Markdown, and structured data.
Corrections
Confirmed match, source, or corpus changes invalidate the affected synthesis. The product is regenerated from the corrected projection and must pass privacy and evidence gates before publication.
Freshness
Pages disclose ingestion and synthesis dates. Prices are indexed observations, not live offers. Scheduled refresh is intentionally deferred until the fixed proof has been validated with buyers.