Compared with the application that is making a lot of noise right now in the Outliner Forum right now, it is definitely much more mature and polished.
The application is a new single-pane outliner. It is called UVOutliner. While it looks good, it does very little.
- Multiline Rich Text: Each row in the outline can have multiple lines of a rich text. This means that you can format rows in the outline like in any word processor - you can specify colors, font sizes, etc.
- Styles allow you to specify how to format rows in certain hierarchies. Automatic styling also helps you format the document uniformly while typing.
- Export: outlines can be exported to plain text or HTML.
I prefer the ConnectedText Outliner—and I do so not just because all my work is deeply connected with this application. I would also prefer TkOutline over this new application, which is really rudimentary, that is, very limited. Yet it requires a framework that when loaded uses more 100 megabytes of memory all by itself.