Changes

; Font metrics :XeTeX 0.88 is not yet able to retrieve character-specific font metrics from Apple's type API, so measurements based on character-specific units may fail or be unreliable.; Line spacing :A side-effect of the font metrics issue is that sub- or superscripts may create additional space between lines. A potential workaround has been suggested: \lineskiplimit=-2pt: ...or thereabouts. experimentation may be needed. ; Paper size : XeTeX 0.88 is not yet able to support multiple paper sizes. The way <tt>texexec</tt> is arranged locks one in to the default paper size. Support will improve when XeTeX addresses the issue. If you need another paper size, you can re-run <tt>xdv2pdf</tt> with a paper size of your choice from the command line: xdv2pdf -p a5:landscape file.xdv; Object reuse :Currently, the XeTeX specials are unable to use ConTeXt's object (or faked object) support. As a result, repeated external figures may be included into the PDF several times, resulting in an increase in font sizes. This has not been tested.; Bookmarks :XeTeX uses dvipdfmx's specials for references, bookmarks, and the like. ConTeXt uses some of these specials "out of spec", and may result in some strangeness in certain documents.; Specials PDF Literals :Because XeTeX relies on Apple's APIs to create PDFs, it is unable to take advantage of specials and other features that use native (literal) PDF commands.