In October 2025, Michael Horsey enhanced the hallowelt/mediawiki repository by developing a targeted feature for HTMLForm conditional logic. He implemented a new CONTAINS operator, enabling hide-if and disable-if conditions to accurately evaluate multiselect field values, which are represented as arrays. This update, built using JavaScript and PHP, addressed the challenge of properly handling array-valued inputs in dynamic forms. By ensuring that conditional logic could detect the presence of specific items within multiselect fields, Michael improved the reliability and user experience of dynamic forms. The work demonstrated a focused application of both back end and front end development skills.