During June 2025, Benjamin Mitzkus focused on improving authentication reliability for client applications using Apollo Client with Supabase in the supabase/pg_graphql repository. He addressed a critical bug by ensuring the SUPABASE_ANON_KEY was correctly propagated in Apollo Client authorization headers, which stabilized authentication flows and reduced edge cases for GraphQL clients. His technical approach involved updating the authLink logic in JavaScript and revising Markdown documentation to reflect the new behavior. Benjamin’s work emphasized security-conscious handling of authentication headers and enhanced the overall developer experience by clarifying usage patterns and reinforcing best practices in documentation and authentication workflows.