MarsEdit 5.4 is now available, introducing support for macOS’s standard “Versions” document history and enhanced Share Extension functionality that allows sending text directly to MarsEdit. The update also fixes various bugs related to image handling in Tumblr posts, Markdown syntax coloring, text editing glitches, and improves WordPress permission error handling, alongside other interface improvements.
https://redsweater.com/blog/4264/marsedit-5-4-versions-support-share-extension-and-bug-fixes