Pyth Network missed its documented 16:00 UTC Aug. 26 cutover deadline for the upgraded Hermes price-delivery service. Direct callers now need an API key, while Sui developers must update authentication, endpoints and the on-chain Move package because applications reference the Pyth package by object ID. Existing users of protocols that already integrate Pyth need no direct action. Unpatched or mismatched applications could fail to verify price updates or complete pull-oracle transactions, potentially affecting smart contracts across roughly 300 DeFi protocols; DefiLlama mapped Pyth to 316 protocols and about $2.7 billion in total value secured. No outage, stale-price event or loss of funds was confirmed.