oasis-tcs · robander · Dec 4, 2025 · Dec 4, 2025 · Dec 4, 2025 · Dec 4, 2025
diff --git a/specification/acknowledgments/acknowledgments.dita b/specification/acknowledgments/acknowledgments.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE reference PUBLIC "-//OASIS//DTD DITA Reference//EN" "reference.dtd">
+<!DOCTYPE reference PUBLIC "-//OASIS//DTD DITA 2.0 Reference//EN" "reference.dtd">
 <reference id="r-acknowledgments" xml:lang="en-us">
  <title>Acknowledgments</title>
  <shortdesc>(Non-normative) Many current and past members of the OASIS DITA

diff --git a/specification/appendix-dita-constraint-modules.ditamap b/specification/appendix-dita-constraint-modules.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
     <title>Appendix: Constraint modules</title>
     <topicref

diff --git a/specification/appendix-dita-expansion-modules.ditamap b/specification/appendix-dita-expansion-modules.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
     <title>Appendix: Expansion modules</title>
     <topicref

diff --git a/specification/archSpec/accessibility-and-translation.ditamap b/specification/archSpec/accessibility-and-translation.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
     <title>Accessibility and Translation</title>
     <topicref href="base/accessibility-and-translation.dita">

diff --git a/specification/archSpec/archSpec-base.dita b/specification/archSpec/archSpec-base.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN"
  "concept.dtd">
 <concept id="archspec-base" xml:lang="en-us">
  <title>Architectural Specification</title>

diff --git a/specification/archSpec/archSpec-base.ditamap b/specification/archSpec/archSpec-base.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map xml:lang="en-us" collection-type="sequence">
  <title>Achitectural specification</title>
  <mapref href="base/introduction-to-dita.ditamap"/>

diff --git a/specification/archSpec/base/aboutconditionalprocessing.dita b/specification/archSpec/base/aboutconditionalprocessing.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
+<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA 2.0 Topic//EN" "topic.dtd">
 <topic id="topic_xzh_h25_xsb">
     <title>About conditional processing</title>
     <shortdesc>Certain concepts are critical for a full understanding of

diff --git a/specification/archSpec/base/aboutditavaldocuments.dita b/specification/archSpec/base/aboutditavaldocuments.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
+<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA 2.0 Topic//EN" "topic.dtd">
 <topic id="aboutditavaldocuments">
     <title>About the DITAVAL document</title>
     <shortdesc>A DITAVAL document specifies a set of rules that defines which elements to include,

diff --git a/specification/archSpec/base/accessibility-and-translation.dita b/specification/archSpec/base/accessibility-and-translation.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="accessibility-and-translation">
     <title>Accessibility and translation</title>
     <shortdesc>Content needed</shortdesc>

diff --git a/specification/archSpec/base/accessibility-contentvsprocessor.dita b/specification/archSpec/base/accessibility-contentvsprocessor.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="accessibility_contentvsprocessor">
     <title>Handling accessibility in content and in processors</title>
     <shortdesc>Accessibility requirements vary depending on how content is

diff --git a/specification/archSpec/base/accessibility.dita b/specification/archSpec/base/accessibility.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="accessibility" xml:lang="en-us">
  <title>Accessibility</title>
  <shortdesc>DITA has markup and features that enable producing output that

diff --git a/specification/archSpec/base/accessibility.ditamap b/specification/archSpec/base/accessibility.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
  <title>Accessibility</title>
  <topicref href="accessibility.dita">

diff --git a/specification/archSpec/base/accessiblemarkup.dita b/specification/archSpec/base/accessiblemarkup.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="accessibilitymarkup" xml:lang="en-US">
 	<title>Accessible content</title>
 	<shortdesc> DITA provides elements and attributes that are designed to

diff --git a/specification/archSpec/base/accessibletablemarkup.dita b/specification/archSpec/base/accessibletablemarkup.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="accessibilitymarkup" xml:lang="en-US">
 	<title>Accessible tables</title>
 	<shortdesc>The complexity of table rendering requires authors and

diff --git a/specification/archSpec/base/adding-an-attribute-to-certain-table-elements.dita b/specification/archSpec/base/adding-an-attribute-to-certain-table-elements.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="adding-an-attribute-to-certain-table-elements" rev="2.0">
   <title>Example: Adding an attribute to certain table elements using
     DTDs</title>

diff --git a/specification/archSpec/base/adding-an-element-to-the-section-element.dita b/specification/archSpec/base/adding-an-element-to-the-section-element.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="adding-an-element-to-the-section-element" rev="2.0">
   <title>Example: Adding an element to the <xmlelement>section</xmlelement>
     element using DTDs</title>

diff --git a/specification/archSpec/base/adding-an-existing-domain-attribute-to-certain-elements-rng.dita b/specification/archSpec/base/adding-an-existing-domain-attribute-to-certain-elements-rng.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="adding-an-attribute-to-certain-table-elements" rev="2.0">
   <title>Example: Adding an existing domain attribute to certain elements
     using RNG</title>

diff --git a/specification/archSpec/base/adding-an-existing-domain-attribute-to-certain-elements.dita b/specification/archSpec/base/adding-an-existing-domain-attribute-to-certain-elements.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="adding-an-attribute-to-certain-table-elements" rev="2.0">
   <title>Example: Adding an existing domain attribute to certain elements
     using DTDs</title>

diff --git a/specification/archSpec/base/addressing.ditamap b/specification/archSpec/base/addressing.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map xml:lang="us-en">
  <title>DITA addressing</title>
  <topicref href="ditaaddressing.dita">

diff --git a/specification/archSpec/base/aggregating-constraint-and-expansion-modules.dita b/specification/archSpec/base/aggregating-constraint-and-expansion-modules.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="aggregating-constraint-and-expansion-modules" rev="2.0">
   <title>Example: Aggregating constraint and expansion modules using
     DTDs</title>

diff --git a/specification/archSpec/base/alternative-titles.dita b/specification/archSpec/base/alternative-titles.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="alternative-titles">
     <title>Alternative titles</title>
     <shortdesc>This topic contains examples of alternative titles moved

diff --git a/specification/archSpec/base/basic-concepts.dita b/specification/archSpec/base/basic-concepts.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="conover" xml:lang="en-us">
  <title>Basic concepts</title>
   <shortdesc id="shortdesc-basic-concepts">DITA has been designed to satisfy requirements for

diff --git a/specification/archSpec/base/basic-dita-terminology.dita b/specification/archSpec/base/basic-dita-terminology.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="basic-dita-terminology">
     <title>Basic DITA terminology</title>
     <shortdesc>Certain terminology is used for basic DITA components.</shortdesc>

diff --git a/specification/archSpec/base/behaviors.dita b/specification/archSpec/base/behaviors.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="behaviors" xml:lang="en-us">
     <title>DITA processing</title>
     <shortdesc>DITA processing is affected by a number of factors, including attributes that

diff --git a/specification/archSpec/base/binding-controlled-values-to-attribute.dita b/specification/archSpec/base/binding-controlled-values-to-attribute.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="concept_fpj_jlx_54">
  <title>Binding controlled values to an attribute</title>
  <shortdesc> The controlled values defined in a subject scheme map can be

diff --git a/specification/archSpec/base/branch-filtering-handling-conflicts.dita b/specification/archSpec/base/branch-filtering-handling-conflicts.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="branch_filtering_handling_conflicts">
     <title>Handling resource name conflicts caused by branch filtering</title>
     <shortdesc>It is possible to construct a root map where the branch filtering mechanism results

diff --git a/specification/archSpec/base/branch-filtering-implications-of-processing-order.dita b/specification/archSpec/base/branch-filtering-implications-of-processing-order.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="branch-filtering-implications-of-processing-order">
  <title>Branch filtering: Implications of processing order</title>
  <shortdesc>The branch filtering mechanism can result in changes to the global key space for a root

diff --git a/specification/archSpec/base/branch-filtering-interactions.dita b/specification/archSpec/base/branch-filtering-interactions.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="branch_filtering_interactions">
     <title>How filtering rules interact</title>
     <shortdesc>With branch filtering, it is possible to set include or exclude rules globally,

diff --git a/specification/archSpec/base/branch-filtering-metadata-elements.dita b/specification/archSpec/base/branch-filtering-metadata-elements.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="branch_filtering_metadata_elements">
     <title>Using metadata elements in the DITAVAL reference domain</title>
     <shortdesc>Metadata within the <xmlelement>ditavalref</xmlelement> element makes it possible to

diff --git a/specification/archSpec/base/branch-filtering-multiple-sets.dita b/specification/archSpec/base/branch-filtering-multiple-sets.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN"
  "concept.dtd">
 <concept id="branch-filter-multiple-sets" xml:lang="en-us" >
     <title>Branch filtering: Multiple referenced DITAVAL documents for a branch</title>

diff --git a/specification/archSpec/base/branch-filtering-overview.dita b/specification/archSpec/base/branch-filtering-overview.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN"
  "concept.dtd">
 <concept id="branch-filter-overview" xml:lang="en-us" >
     <title>Overview of branch filtering</title>

diff --git a/specification/archSpec/base/branch-filtering-renaming-multiple-times.dita b/specification/archSpec/base/branch-filtering-renaming-multiple-times.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="branch_filtering_renaming_multiple_times">
     <title>Renaming based on multiple <xmlelement>ditavalref</xmlelement> elements</title>
     <shortdesc>It is possible for a branch with <xmlelement>ditavalref</xmlelement> already in

diff --git a/specification/archSpec/base/branch-filtering-resource-names.dita b/specification/archSpec/base/branch-filtering-resource-names.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN"
  "concept.dtd">
 <concept id="resource-names" xml:lang="en-us" >
     <title>Branch filtering: Impact on resource and key names</title>

diff --git a/specification/archSpec/base/branch-filtering-single-set.dita b/specification/archSpec/base/branch-filtering-single-set.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="branch-filter-single-set" xml:lang="en-us" >
     <title>Branch filtering: Single referenced DITAVAL document for a branch</title>
     <shortdesc>Using a single <xmlelement>ditavalref</xmlelement> element as a child of a map or map

diff --git a/specification/archSpec/base/branch-filtering.dita b/specification/archSpec/base/branch-filtering.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="branch-filter">
   <title>Branch filtering</title>
   <shortdesc>The branch filtering mechanism enables map authors to set filtering conditions for

diff --git a/specification/archSpec/base/branch-filtering.ditamap b/specification/archSpec/base/branch-filtering.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
  <title>Branch filtering</title>
  <topicref href="branch-filtering.dita" keys="branch-filtering">

diff --git a/specification/archSpec/base/cascading-in-a-ditamap.dita b/specification/archSpec/base/cascading-in-a-ditamap.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN"
  "concept.dtd">
 <concept id="cascading-in-a-ditamap" xml:lang="en-us">
   <title><ph>Cascading of metadata attributes in a DITA map</ph></title>

diff --git a/specification/archSpec/base/cascading-metadata.ditamap b/specification/archSpec/base/cascading-metadata.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
     <title>Cascading metadata</title>
     <topicref href="map-cascading.dita">

diff --git a/specification/archSpec/base/cascading-of-attributes-from-map-to-map.dita b/specification/archSpec/base/cascading-of-attributes-from-map-to-map.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="cascading-of-attributes-from-map-to-map" >
   <title>Cascading of attributes from map to map</title>
   <shortdesc>Certain <ph rev="review-k">attributes</ph> cascade from map to

diff --git a/specification/archSpec/base/cascading-of-metadata-elements-from-map-to-map.dita b/specification/archSpec/base/cascading-of-metadata-elements-from-map-to-map.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="cascading-of-metadata-elements-from-map-to-map" >
     <title>Cascading of metadata elements from map to map</title>
     <shortdesc>Elements that are contained within <xmlelement>topicmeta</xmlelement> elements follow

diff --git a/specification/archSpec/base/cascading-of-roles-in-specialized-maps.dita b/specification/archSpec/base/cascading-of-roles-in-specialized-maps.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="cascading-of-roles-in-specialized-maps" >
  <title>Cascading of roles from map to map</title>
  <shortdesc>When specialized <xmlelement>topicref</xmlelement> elements,

diff --git a/specification/archSpec/base/chunk-attribute-combine.dita b/specification/archSpec/base/chunk-attribute-combine.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="chunkcombine" xml:lang="en">
 <title>Processing <codeph>chunk="combine"</codeph></title>
     <shortdesc><ph rev="review-h">The presence of </ph>

diff --git a/specification/archSpec/base/chunk-attribute-other-tokens.dita b/specification/archSpec/base/chunk-attribute-other-tokens.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="chunkother">
 <title>Using the <xmlatt>chunk</xmlatt> attribute for other purposes</title>
 <shortdesc>Applications can define additional tokens for use in the

diff --git a/specification/archSpec/base/chunk-attribute-overview.dita b/specification/archSpec/base/chunk-attribute-overview.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="aboutchunk" xml:lang="en">
 <title>About the <xmlatt>chunk</xmlatt> attribute</title>
   <shortdesc>The <xmlatt>chunk</xmlatt> attribute specifies how a processor

diff --git a/specification/archSpec/base/chunk-attribute-split.dita b/specification/archSpec/base/chunk-attribute-split.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="chunksplit" xml:lang="en">
     <title>Processing <codeph>chunk="split"</codeph></title>
     <shortdesc><ph rev="review-h">The presence of </ph>

diff --git a/specification/archSpec/base/chunking.dita b/specification/archSpec/base/chunking.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="chunking" xml:lang="en-us">
 <title>Chunking</title>
 <shortdesc>Content often needs to be delivered in a different granularity

diff --git a/specification/archSpec/base/chunking.ditamap b/specification/archSpec/base/chunking.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
  <title>Chunking</title>
   <topicref href="chunking.dita" keys="chunking">

diff --git a/specification/archSpec/base/classification-maps.dita b/specification/archSpec/base/classification-maps.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="concept_wjd_q55_fq">
  <title>Classification maps</title>
  <shortdesc>A classification map is a DITA map in which the classification domain has been made

diff --git a/specification/archSpec/base/coding-requirements.dita b/specification/archSpec/base/coding-requirements.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="coding-practices">
  <title>Coding practices for DITA grammar files</title>
   <shortdesc>This section <ph rev="review-q">contains information

diff --git a/specification/archSpec/base/coding-requirements.ditamap b/specification/archSpec/base/coding-requirements.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map collection-type="sequence">
  <title>Coding requirements for grammar files</title>
  <topicref href="coding-requirements.dita">

diff --git a/specification/archSpec/base/conditional-processing-and-subject-schemes.dita b/specification/archSpec/base/conditional-processing-and-subject-schemes.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="usage-of-conditional-processing-attributes" >
   <title>Conditional processing and subject schemes</title>
   <shortdesc>When a subject scheme defines controlled values for an attribute, a processor can make

diff --git a/specification/archSpec/base/conditional-processing-for-specific-output-types.dita b/specification/archSpec/base/conditional-processing-for-specific-output-types.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept xml:lang="en-us" id="printing">
  <title>Conditional processing to generate multiple deliverable types</title>
  <shortdesc >By default, the content of most elements is included in all output media.

diff --git a/specification/archSpec/base/conditionalprocessingexpectations.dita b/specification/archSpec/base/conditionalprocessingexpectations.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="conditionalprocessingexpectations">
     <title>Expectations for conditional processing</title>
     <shortdesc>Certain behaviors are expected of processors when working with conditional

diff --git a/specification/archSpec/base/conditonal-processing.ditamap b/specification/archSpec/base/conditonal-processing.ditamap
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd">
+<!DOCTYPE map PUBLIC "-//OASIS//DTD DITA 2.0 Map//EN" "map.dtd">
 <map>
  <title>Conditional processing</title>
  <topicref href="condproc.dita" keys="conditional-processing">

diff --git a/specification/archSpec/base/condproc.dita b/specification/archSpec/base/condproc.dita
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN"
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN"
  "concept.dtd">
 <concept id="condproc" xml:lang="en-us">
     <title>Conditional processing<!-- (profiling)--></title>

diff --git a/specification/archSpec/base/configuration-specialization-and-constraints.dita b/specification/archSpec/base/configuration-specialization-and-constraints.dita
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA 2.0 Concept//EN" "concept.dtd">
 <concept id="configuration-specialization-and-constraints" xml:lang="en-US">
   <title rev="review-p">Configuration and  specialization </title>
   <shortdesc rev="2.0">The extension facilities of DITA allow document-type shells, vocabulary