GitHub Pages has been updated to Jekyll 3.3.0, introducing several quality-of-life improvements, including new filters such as relative_url and absolute_url, which help ensure correct URL formatting regardless of how a site is accessed. The update automatically sets site.url and site.baseurl if they aren't already configured, simplifying URL management. Additionally, when running jekyll serve in development, the URL defaults to http://localhost:4000, resolving issues with loading local modifications. The update also optimizes build times by ignoring vendor and node_modules directories by default, though these can be included if necessary by adjusting the configuration file. Users are encouraged to check the Jekyll changelog for more details and to reach out with any questions.