In February 2026, Claas Augner enhanced the MDN browser-compat-data repository by updating documentation and JSON data for the CSS property text-decoration-thickness. Focusing on Chrome versions 87 to 89, Claas clarified the property's dependency on text-decoration-style, ensuring frontend developers have accurate compatibility information. The work involved careful revision of both Markdown documentation and structured JSON, leveraging skills in CSS, web development, and technical writing. By maintaining clear commit messages and proper co-authorship attribution, Claas improved data integrity and reduced the risk of misinterpretation. This targeted update supports more reliable cross-browser styling decisions and streamlines support for frontend engineering teams.