Added a new element, <media>, that has the same content as <graphic> and can be used wherever <graphic> can be used, but indicates a Media Object, such as an animation or a movie.

Added a new optional repeatable element Journal Title (Full) (<journal-title>) to the journal metadata, just before the abbreviated title.

Added optional element <label> to the front of the model <chem-struct>. This label should be treated as a format over-ride and documented accordingly. It should NOT be used in the ordinary course of tagging.

The previous <named-content> element was a small phrase-level structure, intended to surround words or phrases in the text and provide semantic tagging that was beyond the elements in the DTD Suite.

Its model was expanded to include most of the other phrase-level structures, including the Display Class Elements and Inline Display Class Elements.

Modified content models of <td> and <th> to include Phrase Class Elements (currently <named-content>).

Modified content model of <array> to permit multiple <graphic> and <media> elements.

Modified content model of <private-char> to permit multiple <inline-graphic> elements.

Added alternate-form-of attribute to permit an alternate form of certain elements. There may be a graphic form of an element as well as a tagged form, a TeX form as well as a tagged form, different resolutions of the same graphic, etc. (This attribute should not to be confused with the attribute Alternate Version of a Graphic. Unlike alt-version which simply indicates whether an alternate version exists, alternate-form-of provides linkage between various forms of an object.)

Elements include most of the Display Class Elements, the math elements, and the table elements, as well as a number of inline display elements:

• <array>

• <chem-struct>

• <graphic>

• <inline-graphic>

• <media>

• <supplementary-material>

• <disp-formula>

• <inline-formula>

• <mml:math>

• <tex-math>

• <table>

• <inline-supplementary-material>

(Display Class Elements not included are <boxed-text>, <chem-struct-wrapper>, <fig>, <fig-group>, <table-wrap>, and <table-wrap-group>.)

Added optional mimetype and mime-subtype attributes to <graphic>, <inline-graphic>, <media>, <inline-supplementary-material>, and <supplementary-material>. Value is a list of the valid mimetypes.

Added an optional content-type attribute to the following structures as a way to preserve any semantic intent of their original tagging:

• <ack>

• <array>

• <boxed-text>

• <chem-struct>

• <chem-struct-wrapper>

• <fig-group>

• <inline-supplementary-material>

• <p>

• <speech>

• <statement>

• <supplementary-material>

• <table>

• <table-wrap>

(Elements <def-list>, <fig>, <list>, <preformat>, and <sec> already had designated attributes for preserving semantic content.)

Attributes of type ID added to:

• <ack>

• <address>

• <alt-text>

• <array>

• <chem-struct>

• <corresp>

• <def-item>

• <disp-quote>

• <ext-link>

• <inline-formula>

• <inline-graphic>

• <inline-supplementary-material>

• <institution>

• <long-desc>

• <named-content>

• <notes>

• <p>

• <speech>

• <table>

• <verse-group>

• <xref>

(Elements <def-list>, <fig>, <list>, <preformat>, and <sec> already had designated attributes for preserving semantic content.)

Added a target-type attribute to the element Target of an Internal Link to say why there is a target in a document at this point.

Changed fixed value of dtd-version attribute to "1.1"