macOS 27.3 Beta Adds Native Markdown Rendering to Quick Look

November 5: According to MacRumors, the first developer beta of macOS 27.3 released by Apple on November 3 adds native Markdown rendering to Quick Look, so users can select a .md file in Finder and press the space bar to preview formatted headings, bold text, lists and links without an extra editor or extension. In addition, Apple's newly launched Siri AI app skills also use the Markdown format, and developers can include a SKILL.md file in their apps to explain how Siri should handle tasks involving app operations.