The update tightens eligibility on product images while opening more slots for variant swatches when GTIN and offer metadata stay consistent across locales.
Merchants that syndicate feeds through multiple partners should verify canonical item IDs; drift between Merchant Center and on-page JSON-LD is the dominant failure mode in early logs.
Expect reporting noise for two weeks as dashboards backfill impression classes. Document baseline click curves before changing titles or price display rules.