2.11: Bug fix in parsing; a dozen small repairs 2.10: nountangle becomes a filter; multilanguage support; ... 2.9: Support for hyperref; many small repairs 2.8: LaTeX2e, support for HTML tables 2.7: Reads nuweb files, converts latex to HTML 2.6: HTML support, necessitating a rewrite of cross-referencer 2.5: Index of identifiers and identifier cross-reference 2.4: Icon versions of the major pipeline stages 2.0: Fully detailed pipeline representation 1: Pipelined architecture 0: Monolithic notangle; noweave as unholy awk script