GitHub Desktop 3.0 introduces significant updates aimed at simplifying version control workflows for developers, with enhanced support for git operations like squashing and reordering commits, and new features that integrate GitHub more closely with local development. This version allows users to view and manage pull request checks directly, and provides notifications only for critical events, reducing unnecessary distractions. The update also improves the process of addressing pull request reviews by notifying users of any comments or requested changes, facilitating quicker responses and enabling smoother collaboration. GitHub Desktop's development is driven by a small team at GitHub, but its open-source nature allows for widespread community contributions, resulting in a robust platform with over 32,000 commits and 1,000 merged pull requests from external contributors.