[Leo](http://leoeditor.com/) 5.1 b2 is now available [at SourceForge.](http://sourceforge.net/projects/leo/files/Leo/) Leo is a PIM, an IDE and an outliner.
b2 restores the proper operation of @nosent. It is recommended for anyone using Leo 5.1 b1. **The highlights of Leo 5.1** This release features **@clean** trees, one of the most important developments in Leo's history. @clean nodes create external files without sentinel comments, yet Leo can update @clean trees from changes made to the corresponding external files, something long thought impossible. @clean trees preserve clone links and user attributes (uA's). Reading @clean trees is faster than reading @auto or @shadow trees. Steve Zatz [explains why @clean changes everything.](http://leoeditor.com/testimonials.html#steve-zatz-explains-why-clean-changes-everything) The [Mulder/Ream algorithm](http://leoeditor.com/appendices.html#the-mulder-ream-update-algorithm) updates @clean trees from changes made in the corresponding external files. This is a completely rewritten and much simpler version of Bernhard Mulder's original @shadow update algorithm. **More highlights** * A new [web page](http://leoeditor.com/load-leo.html) displays .leo files in the browser. * Added **command history** to Leo's minibuffer. * A new IdleTime class greatly simplifies idle-time handling. * Leo now honors @language inside @doc parts * @data nodes can be composed of their descendant nodes. * @shadow is now deprecated. @clean is superior to @shadow in all respects. Leo will support all flavors of @auto indefinitely. Links: ------ [Leo](http://leoeditor.com) [Docs](http://leoeditor.com/leo_toc.html) [Tutorials](http://leoeditor.com/tutorial.html) [Videos](http://leoeditor.com/screencasts.html) [Forum](http://groups.google.com/group/leo-editor) [Download](http://sourceforge.net/projects/leo/files/) [Github](https://github.com/leo-editor/leo-editor) [Quotes](http://leoeditor.com/testimonials.html) [Viewer page](http://leoeditor.com/load-leo.html) -- https://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
