Anshul Malik updated the RTCRtpSender API compatibility documentation in the mdn/browser-compat-data repository, focusing on accurately reflecting Firefox 110’s support for the transactionId property. By analyzing cross-browser compatibility and applying targeted changes in JSON, Anshul clarified the API’s behavior across browsers, reducing ambiguity for developers integrating WebRTC features. The work involved careful documentation, API versioning, and precise change-tracking through commit management. This update improved the reliability of the compatibility matrix, enabling faster and safer integration decisions for developers. Anshul’s contribution demonstrated attention to detail in web standards documentation and a methodical approach to maintaining up-to-date API references.