HTML5 promises to transform technical documentation by allowing for responsive design, interactivity, and accessibility across all devices. While HTML5 has limitations and requires technical writers to learn new skills, its benefits such as semantic markup, embedded graphics and video, and localization support outweigh these challenges. The future of technical communication lies in standards like HTML5 that can deliver documentation to users anywhere through a web browser. However, native apps still have advantages for specialized documentation needs. Overall, HTML5 has potential to improve the user experience of technical documentation if its costs and learning curves can be properly managed.