Highlight has introduced support for recording WebSocket events in its session replay feature starting with version 7.3.0, addressing a previous gap where WebSocket communications were not captured. The updated feature allows users to debug background activities by displaying WebSocket events separately, with open connection requests shown alongside other HTTP requests for context. To achieve this, Highlight monkeypatches the WebSocket object to capture various events and stores them in S3, optimizing performance by separating different event types. Users can easily activate this feature by setting specific configurations, and they can also choose to disable it without affecting other network recordings. The update aims to enhance debugging capabilities by providing a more comprehensive view of network interactions, and further details are available in Highlight's documentation.