The acronym stands for Document Style Semantics and Specification Language . The current version is 1.64 from 16 Mar 2001. Note that the documentation is now distributed in a separate archive.
Small bug fixes.
The DocBook Stylesheet documentation is also available. The current experimental version is 1.67 from 04 Apr 2001. If you work in languages other than English, please give 1.67 a try and report any problems you encounter.