New Relic Browser now has general availability of source map support for frontend JavaScript errors, making it easier to troubleshoot and fix issues by mapping original source code locations. This feature can be accessed through an intuitive drag-and-drop option or a robust API that integrates with build systems. Additionally, New Relic provides a command line tool and JavaScript API to automate the process of publishing source maps in build pipelines, allowing for seamless debugging and error analysis. By using source map support, developers can reduce client-side errors and improve the end user experience, while also gaining visibility into their application's performance and reliability.