Igor Olshevsky developed a legacy password handling enhancement for the logto-io/logto repository, focusing on secure migration and compatibility with older account schemes. He implemented PBKDF2 hashing support by introducing algorithm identification and updating the executeLegacyHash function to generate hashes using salt, iterations, key length, and digest parameters. Working primarily with TypeScript and Node.js, Igor applied backend development and cryptography expertise to ensure backward compatibility for legacy passwords. The work was delivered as a dedicated feature commit, providing maintainable and traceable improvements. Over the month, Igor’s contribution addressed a specific need for secure, standards-based password handling in authentication systems.