IntelliJ has enhanced its GitHub integration by introducing Advanced GitHub Integration with a new feature called "Rebase My GitHub Fork," which simplifies the process of keeping up with upstream repositories. This advanced feature is available in both the free community edition and the commercial edition of IntelliJ IDEA, with plans to expand integration to other products. Users are encouraged to visit the JetBrains blog for additional details and a screencast, as the JetBrains team continues to innovate and improve their offerings.