When a URL in Markdown references a label, the label is now automatically rendered.
GitHub can display several common image formats, including PNG, JPG, GIF, PSD, and SVG, and provides several ways to compare differences between versions. Now when reviewing added or changed images in a pull request, previews of those images are shown by default:
Previously, you would see a message indicating that binary files could not be shown and you would need to toggle the "Display rich diff" option.
Learn more about working with non-code files.