During May 2025, Caliph Dev contributed to the AdguardTeam/KnowledgeBaseDNS repository by enhancing DNS provider documentation. They added the Caliph DNS provider, detailing IPv4, IPv6, and advanced DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC configurations. Using Markdown and focusing on documentation best practices, Caliph Dev updated server IP addresses and configuration links to align with current AdGuard and AdGuard VPN infrastructure. Their work ensured the documentation remained accurate and ready for ongoing DNS changes, providing clear, up-to-date technical references. The depth of updates reflected a thorough understanding of DNS protocols and a methodical approach to maintaining technical documentation quality.