The November 21 incident involved a mainnet chain partition caused by a malformed transaction, which was resolved with the hotfix node v.10.5.3. The ledger team defined sub-transactions for the Dijkstra era, while the Plutus team finalized costing for Value primitives for the upcoming hard fork. Lace v.1.31 was released with in-wallet token swaps and Bitcoin wallet support, and Mithril completed the first phase of decentralizing configuration parameters.

The consensus team addressed 'bufferbloat' issues and enhanced resource management following the Leios demo. Scaling updates include Mithril hotfix 2543.1 and Hydra's introduction of the 'SafeClose' safety feature alongside improved partial fanout. Intersect announced its election results following a high voter turnout, while Project Catalyst Fund15 launched with a new "Midnight: Compact DApps" category. Additionally, the education team is currently conducting a developer course in Buenos Aires.

The Plutus team hosted UPLC 2025 and introduced the scaleValue primitive for the upcoming hard fork. Scaling advancements include the Mithril 2543.0 distribution and the Hydra v1.1.0 release, while Intersect concluded its committee election voting. Additionally, the Ouroboros Phalanx upgrade was introduced alongside a new Compact DApps category for Project Catalyst Fund15.

The Hydra team announced the launch of v1, marking the protocol as production-ready. The ledger team finalized CIP-118, introducing nested transactions and Babel fees, while IOG published a deep dive on Ouroboros Phalanx to deter grinding attacks. Additionally, the consensus team showcased a Leios prototype, Intersect committee elections are currently underway, and Project Catalyst Fund15 is preparing for its official launch.

The ecosystem has reached a milestone of 2,014 projects, while applications are being prepared for .ada and .cardano gTLDs. Wanchain has launched a bridge to Sonic, and technical progress continues with Mithril's work on incremental snapshots and configuration decentralization. Furthermore, committee election voting is opening for the community, and Project Catalyst Fund15 is set to launch.

The development report highlights the Hydra team's release of version 1.0.0. The consensus team advanced the Leios CIP, while the performance team benchmarked node v.10.6 and the LSM-tree backend. The Plutus team finalized the implementation of CIP-0153, introducing the Value built-in type. In the ecosystem, Project Catalyst Fund14 voting concluded, and the Cardano Foundation launched its Summit 2025 PR campaign.

The ecosystem has reached 114.56 million transactions and an increase in active DReps, while the Asia tour concluded in Tokyo. Yoroi v6.0 launched, integrating DexHunter and Minswap. Additionally, Midnight Network partnered with CSWAP for privacy-first DeFi solutions, and the Hydra-node v1.0.0 pre-release is now available.

Progress continues on CIP-112 and features for the next intra-era hard fork. The first fully community-elected constitutional committee is now in place, and the Mithril team has updated the DMQ protocol CIP. Additionally, Yoroi Extension v.5.13.0 has been released, alongside new partnerships for Sundial Protocol and Midnight Network.

The consensus team is auditing the KES agent and refactoring the hard fork combinator for Peras-awareness. The Plutus team is enabling sums-of-products and built-in functions for the upcoming intra-era hard fork. Meanwhile, IOG and zkFold have partnered for a trustless ETH-Cardano bridge, and Minswap's "Wen" token generator is now live.

The consensus team drafting an architectural design for Leios (CIP-0164). The Plutus team progressed on implementing the Value built-in type (CIP-0153) and merged multi-scalar multiplication primitives for the next hard fork. In scaling, the Mithril team created a new pre-release, supported Cardano node v.10.5.1, and completed a SNARK proving circuit prototype. IOG also kicked off its 2025 Asia tour.