During March 2025, Jainh delivered two Kafka-focused upgrades across Azure Functions projects, working primarily in C# with a strong emphasis on configuration management and extension development. In the Azure/azure-functions-extension-bundles repository, Jainh implemented a configuration-based upgrade to support Kafka version 4, enabling compatibility with modern Kafka features without requiring code changes. Additionally, in Azure/azure-functions-dotnet-worker, Jainh upgraded the Kafka extension to 4.1.0, introducing new attributes for message key serialization and SSL certificate handling. These enhancements improved security and flexibility for Kafka integrations, while thorough updates to release notes and project files increased maintainability and transparency for future development efforts.