Dear Everybody, It was a real pleasure to read this post. I am sure there are many people who feel the library needs polishing and rethinking in some areas. A lot of interesting ideas were proposed during the review, and I already started work on the next revision. I hope the changes I intend to do will make these people less concerned about the quality and usefulness of the library, while they will not detract from what other people found valuable. Below is a (possibly incomplete) list of improvements I intend to add in future revisions: - path class, orthogonal to the tree - configurable location of metadata generated by the parsers (e.g. XML attrributes information). It may be possible to achieve that for free with paths - generation of comments / layout metadata by parsers - splitting traits - support for using custom types for keys, again path class looks like a solution - documentation rewrite to QuickBook, and enhancements (thanks to Charles Brockman who provided tons of English-related corrections) I hope I can get most pressing items done quickly. Finally, I would like to thank all the people who contributed a review or comments, and really big thanks to Thorsten who managed the review. Thank you, Marcin