Worked on the linkedin/rest.li repository to address a critical issue affecting HTTP/2 server certificate resolution. Focused on backend development using Java and Netty, the developer implemented logic to ensure that server certificates are first read from the current channel, with a fallback to the parent channel if necessary. This approach resolved cross-channel compatibility problems, particularly for multiplexed HTTP/2 streams, and maintained correct behavior for both HTTP/1.1 and HTTP/2 protocols. The fix reduced certificate lookup failures, improved TLS reliability, and enhanced overall deployment stability. Version updates and changelog documentation were also completed to reflect these backend improvements.