Satrajit Acharya updated developer documentation in the spring-projects/spring-security repository, focusing on the migration from OAuth2 Client to OAuth2 Resource Server. He revised AsciiDoc-based guides to clarify the new security architecture, aligning section titles and examples for greater consistency. Using his expertise in OAuth2 and Spring Security, Satrajit ensured that the documentation accurately reflected current best practices, making it easier for developers to onboard and transition between security models. His work emphasized traceability and reviewability by signing off on changes, ultimately reducing confusion for users and supporting the product’s evolving direction through clear, maintainable, and technically precise documentation updates.