May 2025 focused on delivering pivotal feature work for CosmWasm/wasmvm, improving interoperability, traceability, and maintainability while aligning with newer wasmd versions. Key features delivered include IBCv2 Send entry point with pre-send validation, enhanced transaction identification via a new TransactionInfo hash field, and removal/deprecation of IBC fee queries. These changes reduce API surface area, mitigate compatibility risk, and enable robust transaction tracking for downstream systems and contracts.

April 2025 monthly highlights for CosmWasm/wasmvm: Delivered IBCv2 protocol enhancements and timeout handling, enabling reliable cross-chain contract interactions and improved developer experience. Implemented WriteAcknowledgement messaging, enhanced PacketReceive with PacketSequence, standardized endpoint identification to source_client across IBCv2 messages and tests, and introduced a dedicated IBCv2 timeout entrypoint with Go and Rust bindings. Updated analysis/report to flag IBCv2 entry points for proper contract timing behavior. These changes improve interoperability, reliability, and performance for wasm-based contracts interacting with IBC2.

Monthly summary for 2025-03 (CosmWasm/wasmvm): Delivered IBCv2 Receive packet entrypoint with new functions and types to handle IBCv2 packets, including a dedicated receive function, updated message structures, and supporting internal logic updates with tests.