Git 2.50.0 has introduced several new features aimed at improving the efficiency and performance of Git operations. Notably, the release includes the new git-diff-pairs command for more scalable diff generation, the --batch-updates option for git-update-ref resulting in more efficient reference updates, and enhancements to git-cat-file for focused object filtering. Additionally, performance improvements have been made for generating bundles and handling bundle URIs, reducing the amount of data transferred during cloning.