Quote:
Need for enhanced navigation support. There is currently no ability to represent preferred instantiations of navigational elements; as well, presently any rendering of page-to-page navigation as well as Table of Contents and other navigation elements is optional and entirely Reading System-dependent. Version 2.0.1 makes “end user” presentation of the NCX TOC a “should” with statement that the next version will likely transform to a “must” and that other NCX sections may receive similar “upgraded” treatment.
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I don't see why this one needs to be updated.