In July 2025, Itse focused on improving the ExpressionLanguage component within the symfony/symfony repository by addressing a bug related to the null-safe operator in PHP. They enhanced the correctness of property access and method invocation on potentially null objects, ensuring that dumps and error messages accurately reflected null-safe access paths. This work involved updating both the core PHP logic and associated tests, leveraging skills in Expression Language, PHP development, and testing. By refining error handling and output, Itse contributed to the stability and maintainability of Symfony’s core, reducing runtime surprises and improving the overall developer experience for ExpressionLanguage users.