OGC(r) GML schema ReadMe.txt
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OGC(r) Geography Markup Language (GML) Encoding Standard
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Geography Markup Language is an OGC Standard.

More information may be found at
 http://www.opengeospatial.org/standards/gml

The most current schema are available at http://schemas.opengis.net/ .

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2012-07-30  Clemens Portele, Claus Nagel
  * v3.0.0 - v3.1.1: Change smil20.xsd to use http://www.w3.org/2001/xml.xsd
  and remove the modified smil/xml-mod.xsd.

2012-07-21  Kevin Stegemoller
  * v2.0.0 - v3.2.1 WARNING XLink change is NOT BACKWARD COMPATIBLE.
  * changed OGC XLink (xlink:simpleLink) to W3C XLink (xlink:simpleAttrs)
  per an approved TC and PC motion during the Dec. 2011 Brussels meeting.
  see http://www.opengeospatial.org/blog/1597
  * implement 11-025: retroactively require/add all leaf documents of an
  XML namespace shall explicitly <include/> the all-components schema
  * v3.3: no changes
  * v3.2.1: added gml.xsd as the all-components document (06-135r11 #14)
  * v3.2.1: archived previous version in gml-3_2_1_1.zip contained in gml-3_2_1.zip
  * v3.2.1: updated xsd:schema/@version to 3.2.1.2 (06-135r7 s#13.4)
  * v3.1.1: updated xsd:schema/@version to 3.1.1.2 (06-135r7 s#13.4)
  * v3.1.1: added gml.xsd as the all-components document (06-135r11 #14)
  * v3.1.0: no changes
  * v3.0.1: updated xsd:schema/@version to 3.0.1.2 (06-135r7 s#13.4)
  * v3.0.0: no changes
  * v2.1.2.x: gml/2.1.2.x schema were removed and archived
  * v2.1.2.0: removed gml/2.1.2.0 and now redirected to 2.1.2
  * v2.1.2.2: removed gml/2.1.2.1 and now redirected to 2.1.2
  * v2.1.2: added gml.xsd as the all-components document (06-135r11 #14)
  * v2.1.2: updated xsd:schema/@version to 2.1.2.2 (06-135r7 s#13.4)
  * v2.1.1: updated xsd:schema/@version to 2.1.1.1 (06-135r7 s#13.4)
  * v2.0.0: updated xsd:schema/@version to 2.0.7.1 (06-135r7 s#13.4)

2012-02-07  Clemens Portele
  * v3.3.0: Posted GML 3.3 schemas from OGC 10-129r1.
	  See http://schemas.opengis.net/gml/3.3/ReadMe.txt

2010-01-28  Kevin Stegemoller
  * v1.0-v3.2: update/verify copyright (06-135r7 s#3.2)
  * v1.0-v3.2: update relative schema imports to absolute URLs (06-135r7 s#15)
  * v1.0-v3.2: updated xsd:schema/@version attribute (06-135r7 s#13.4)
  * v1.0-v3.2: add archives (.zip) files of previous versions
  * v1.0-v3.2: create/update ReadMe.txt (06-135r7 s#17)

2007-09-06  Kevin Stegemoller
  * v3.2.1: Posted GML 3.2.1 (ISO 19136) schemas from OGC 07-036
    See http://schemas.opengis.net/gml/3.2.1/gml_3_2_1-ReadMe.txt

  Note: The root document of the GML 3.2.1 schema is 
    http://schemas.opengis.net/gml/3.2.1/gml.xsd

NOTICE: GML 2.1.2 will link to the newest version of GML 2.1.2.x .  As
of 5 September 2007, the contents of 2.1.2 contain GML 2.1.2.1 per OGC
06-189.  If you have questions, please contact the webmaster (at)
opengeospatial.org. -- 2007-09-05  Kevin Stegemoller

2007-08-27  Chris Holmes
  * v2.1.2: update 2.1.2.1 and ReadMe.txt changes
  * v2.1.2.0: Contains previous version of GML 2.1.2 (pre- 5 Sep 2007)
  * v2.1.2.1: Contains Corrigendum 1 for GML 2.1.2 schema fix (OGC 06-189).
  * v2.1.2.1: Corrigendum 1 for GML 2.1.2 schema fix (OGC 06-189) includes:
    + Official schema location is now http://schemas.opengis.net
    + replace xlink import schema location with ../../xlink/1.0.0/xlinks.xsd
    + remove gml/2.1.2/xlinks.xsd (optional, as is now unused).
    + geometry.xsd: fixed so will now validate by conformant processors by:
    + geometry.xsd: moving minOccurs/maxOccurs cardinality indicators from
      <element> declarations to their containing <sequence> elements in the
      context of the GML property pattern. -- SJDC 2006-12-07
    + gml:Coord is suppressed. -- SJDC 2006-12-07

2005-11-22  Arliss Whiteside
  * GML versions 2.0.0 through 3.1.1: The sets of XML Schema Documents for
    OpenGIS GML Versions 2.0.0 through 3.1.1 have been edited to reflect the
    corrigenda to all those OGC documents that is based on the change requests: 
    OGC 05-068r1 "Store xlinks.xsd file at a fixed location"
    OGC 05-081r2 "Change to use relative paths"
    OGC 05-105 "Remove description and copyright tags from XML schema documents"
 
  * Note: check each OGC numbered document for detailed changes.

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Policies, Procedures, Terms, and Conditions of OGC(r) are available
  http://www.opengeospatial.org/ogc/legal/ .

OGC and OpenGIS are registered trademarks of Open Geospatial Consortium.

Copyright (c) 2011 Open Geospatial Consortium

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