Worked on the PubMatic-OpenWrap/prebid-server repository to deliver OpenRTB 2.6 support for the Undertone bidder, focusing on configuration management using YAML. The implementation involved declaring compatibility with the OpenRTB 2.6 protocol and updating the bidder configuration by adding the openrtb.version field set to '2.6'. This change enabled new protocol features and ensured alignment with the latest OpenRTB standards, improving interoperability and reducing integration effort for partners. The work demonstrated a clear understanding of protocol specifications and commit-driven delivery, with no major bugs reported during the period. The contribution centered on precise configuration and standards compliance.