Now available: PreviewMarkdown 1.3.0 with YAML support

Version 1.3.0 of PreviewMarkdown has just been released. Its key new feature: you now have the option to view YAML front matter in Markdown file previews. This is really handy if, like me, you use a static site generator and use YAML to record content metadata at the top of your Markdown page files.

With PreviewMarkdown 1.3.0, you can now preview files’ YAML content too

If you don’t use YAML in your Markdown files, you won’t see any changes, of course. If you do use YAML, but don’t want to see it in your file previews, no problem — the feature is entirely optional and can be turned off in PreviewMarkdown’s Preferences panel.

Choose whether you want to see YAML in previews or not

In addition to adding YAML support, I’ve been working to make PreviewMarkdown’s Thumbnailer — the app extension that draws icon thumbnails in Finder windows — thread safe so that it’s more resilient when spawned across multiple Finder threads. The upshot: you shouldn’t see those occasional instances of thumbnails being replaced by generic or editor-specific icons. I covered this issue, its solution and the ‘hidden’ Xcode tools that helped me track it down in last week’s post.

Finder icon thumbnails courtesy of PreviewMarkdown

PreviewMarkdown 1.3.0 is available now from the Mac App Store. The source code is available on my GitHub repo.

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