In June 2025, Juan Carlos focused on enhancing the php/doc-en repository by updating and clarifying documentation related to JSON validation. He delivered targeted improvements to the XML-based documentation, specifically addressing how json_validate and json_last_error handle error messaging. His work aimed to align the documentation with actual library behavior, reducing ambiguity for users and support teams. By refining the explanations and examples, Juan Carlos improved the accuracy and consistency of the documentation, making it easier for developers to understand JSON error handling. His contributions demonstrated a strong attention to detail in documentation and XML, though the scope was limited to one feature.