Secret versioning is a critical practice that applies version control principles to sensitive credentials, such as API keys and database passwords, ensuring that every change is tracked, thus improving accountability, auditability, and resilience. By preserving a complete history of secrets, versioning allows teams to quickly roll back changes in case of outages, meet compliance requirements through detailed audit trails, and safely test different environments without overwriting critical values. This practice is essential for modern DevOps and security, as it fosters better collaboration among developers, DevOps engineers, and security teams by maintaining a single source of truth and preventing issues like overwriting changes or losing track of key rotations. Enterprise-grade secrets management tools, such as Doppler, offer functionalities like rollback and retention to support secrets versioning, enabling teams to recover quickly from incidents, ensure compliance, and experiment safely. Adopting a professional secrets management solution, setting rotation policies, educating teams, and integrating with CI/CD systems are recommended steps to effectively implement secret versioning.