According to @ItsDave_ADA, the author posted the message "Cardano Hydra I'm coming" on Nov 29, 2025, confirming only that a Hydra-related personal statement was shared publicly. Source: @ItsDave_ADA tweet, Nov 29, 2025. The post provides no timeline, version, deployment details, or network change information, so no confirmed upgrade can be inferred from the message itself. Source: @ItsDave_ADA tweet, Nov 29, 2025. Hydra is Cardano’s layer-2 scaling framework using Hydra Heads for low-latency, high-throughput transactions and micro-payments that can influence dApp performance and fee dynamics when implemented, but this post does not announce such implementation. Sources: Input Output Global Hydra documentation; @ItsDave_ADA tweet, Nov 29, 2025. No price, volume, or on-chain metrics are included in the post. Source: @ItsDave_ADA tweet, Nov 29, 2025.