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METS News and Announcements

New Version of METS Schema Released (December 21, 2001)

A revised version of the METS XML schema is now available at the official METS web site at Please note that this revision requires the use of an additional XML schema document defining XLink attributes used in the METS schema. The XLink schema is available at

This revision makes a number of changes and enhancements to the METS schema, including:

  • Change of sequence operator for StructMap so that only 1 root div element is permitted;
  • Addition of new roles to agent element's role attribute and support for extensible 'other' role;
  • Additon of support for extensible 'other' type attribute on agent element;
  • Revision of documentation;
  • Relocation of CHECKSUM attribute from FContent to File element;
  • Change of the file element's CREATED attribute and fileGroup's VERSDATE attribute to a type of xsd:dateTime;
  • Change of attribute name DMD for div element to DMDID for consistency's sake.
  • Additon of new behaviorSec for support of referencing executable code from METS object

Input from the library community regarding the design of the METS schema is encouraged. Comments regarding METS' design should be submitted to the METS listserv. Details about subscribing to the listserv are available at the METS web site).

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  February 9, 2016

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