Cohere has announced the release of updated APIs, including Chat, Embed, Rerank, and Classify, aimed at enhancing the developer experience by aligning more closely with industry standards and facilitating easier app development. The new API version, available on the Cohere platform with comprehensive SDKs, requires specifying the model version to avoid performance issues and supports all existing Cohere models. Key updates include a unified message array for the Chat API, the use of JSON schema for tool definitions, the introduction of tool call IDs for accurate tool result matching, and server-sent events for streaming. While the existing V1 APIs will continue to be supported, developers are encouraged to transition to V2 for improved stability and features.