11 Facts About XHTML 20

The standard known as XHTML 205 is being developed as an XML adaptation of the HTML5 specification.

In 2009, the W3C allowed the XHTML 20 2 Working Group's charter to expire, acknowledging that HTML5 would be the sole next-generation HTML standard, including both XML and non-XML serializations.

XHTML 20 was developed to make HTML more extensible and increase interoperability with other data formats.

XHTML 20 uses an XML syntax, while HTML uses a pseudo-SGML syntax.

Simon Pieters researched the XML-compliance of mobile browsers and concluded "the claim that XHTML 20 would be needed for mobile devices is simply a myth".

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The initial draft of Modularization of XHTML 20 became available in April 1999, and reached Recommendation status in April 2001.

XHTML 20-Print, which became a W3C Recommendation in September 2006, is a specialized version of XHTML 20 Basic designed for documents printed from information appliances to low-end printers.

XHTML 20 Mobile Profile is a third-party variant of the W3C's XHTML 20 Basic specification.

WAP Forum based their DTD on the W3C's Modularization of XHTML 20, incorporating the same modules the W3C used in XHTML 20 Basic 1.

XHTML 20 2 Working Group considered the creation of a new language based on XHTML 20 1.

XHTML 20+RDFa is an extended version of the XHTML 20 markup language for supporting RDF through a collection of attributes and processing rules in the form of well-formed XML documents.