diff --git a/xml/FHIR-us-davinci-atr.xml b/xml/FHIR-us-davinci-atr.xml
index 3f86547c5..06fea4315 100644
--- a/xml/FHIR-us-davinci-atr.xml
+++ b/xml/FHIR-us-davinci-atr.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<specification xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ballotUrl="http://hl7.org/fhir/us/davinci-atr/2023Jan" ciUrl="http://build.fhir.org/ig/HL7/davinci-atr" defaultVersion="1.0.0" defaultWorkgroup="fm" gitUrl="https://github.com/HL7/davinci-atr" url="http://hl7.org/fhir/us/davinci-atr">
+<specification xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ballotUrl="http://hl7.org/fhir/us/davinci-atr/2023Jan" ciUrl="http://build.fhir.org/ig/HL7/davinci-atr" defaultVersion="2.0.0" defaultWorkgroup="fm" gitUrl="https://github.com/HL7/davinci-atr" url="http://hl7.org/fhir/us/davinci-atr">
 <version code="current" url="http://build.fhir.org/ig/HL7/davinci-atr"/>
+<version code="2.0.0" url="http://hl7.org/fhir/us/davinci-atr/STU2"/>
 <version code="2.0.0-ballot" url="http://hl7.org/fhir/us/davinci-atr/2023Jan"/>
 <version code="1.0.0" url="http://hl7.org/fhir/us/davinci-atr/STU1"/>
 <version code="0.1.0" deprecated="true" url="http://hl7.org/fhir/us/davinci-atr/2020Feb"/>
@@ -18,20 +19,25 @@
 <artifact id="StructureDefinition/atr-practitionerrole" key="StructureDefinition-davinci-atr-practitionerrole" name="ATRPractitionerRole"/>
 <artifact id="StructureDefinition/atr-relatedperson" key="StructureDefinition-davinci-atr-relatedperson" name="ATRRelatedPerson"/>
 <artifact id="StructureDefinition/ext-attributedProvider" key="StructureDefinition-ext-attributedProvider" name="AttributedProvider"/>
+<artifact id="OperationDefinition/attribution-status" key="OperationDefinition-attribution-status" name="Attribution Status"/>
+<artifact id="StructureDefinition/ext-attributionListStatus" key="StructureDefinition-ext-attributionListStatus" name="AttributionListStatus"/>
 <artifact id="StructureDefinition/ext-changeType" key="StructureDefinition-ext-changeType" name="ChangeType"/>
+<artifact id="OperationDefinition/confirm-attribution-list" key="OperationDefinition-confirm-attribution-list" name="Confirm Attribution List"/>
 <artifact id="StructureDefinition/ext-contractValidityPeriod" key="StructureDefinition-ext-contractValidityPeriod" name="ContractValidityPeriod"/>
 <artifact id="Coverage/1" key="Coverage-1" name="Coverage For Patient 1 - Example"/>
 <artifact id="Coverage/2" key="Coverage-2" name="Coverage For Patient 2 - Example"/>
 <artifact id="Coverage/3" key="Coverage-3" name="Coverage For Patient 3 - Example"/>
 <artifact id="StructureDefinition/ext-coverageReference" key="StructureDefinition-ext-coverageReference" name="CoverageReference"/>
-<artifact id="ValueSet/atr-changetype" key="ValueSet-atr-changetype" name="Da Vinci ATR Change Types"/>
+<artifact id="CodeSystem/atr-changetype" key="CodeSystem-atr-changetype" name="DaVinci ATR Change Type Codes"/>
+<artifact id="ValueSet/atr-changetype" key="ValueSet-atr-changetype" name="DaVinci ATR Change Types"/>
 <artifact id="CapabilityStatement/atr-consumer" key="CapabilityStatement-davinci-atr-consumer" name="DaVinci ATR Consumer"/>
 <artifact id="CapabilityStatement/atr-producer" key="CapabilityStatement-davinci-atr-producer" name="DaVinci ATR Producer"/>
+<artifact id="ValueSet/atr-attribution-list-status" key="ValueSet-atr-attribution-list-status" name="DaVinci Attribution List Status"/>
+<artifact id="CodeSystem/atr-attribution-list-status" key="CodeSystem-atr-attribution-list-status" name="DaVinci Attribution List Status Codes"/>
 <artifact id="OperationDefinition/davinci-data-export" key="OperationDefinition-davinci-data-export" name="DaVinci Data Export"/>
 <artifact id="ValueSet/davinci-group-characteristic" key="ValueSet-davinci-group-characteristic" name="DaVinci Group Characteristic"/>
 <artifact id="StructureDefinition/davinci-patient-list" key="StructureDefinition-davinci-patient-list" name="DaVinci Patient List"/>
-<artifact id="CodeSystem/atr-changetype" key="CodeSystem-atr-changetype" name="Davinci ATR Change Type Codes"/>
-<artifact id="CodeSystem/davinci-group-characteristic-codes" key="CodeSystem-davinci-group-characteristic-codes" name="Davinci Group Charactersitic Codes"/>
+<artifact id="CodeSystem/davinci-group-characteristic-codes" key="CodeSystem-davinci-group-characteristic-codes" name="Davinci Group Characteristic Codes"/>
 <artifact deprecated="true" id="Group/MemberAttributionListExample" key="Group-MemberAttributionListExample" name="Example - Group member attribution list"/>
 <artifact deprecated="true" id="InsurancePlan/SampleContract" key="InsurancePlan-SampleContract" name="Example - Insurance plan simple sample contract"/>
 <artifact deprecated="true" id="Organization/MulticareProviderOrg" key="Organization-MulticareProviderOrg" name="Example - Multicare Provider organization"/>
@@ -43,6 +49,8 @@
 <artifact id="StructureDefinition/ext-insuranceProductType" key="StructureDefinition-ext-insuranceProductType" name="InsuranceProductType"/>
 <artifact id="Location/1" key="Location-1" name="Location - Example"/>
 <artifact id="OperationDefinition/member-add" key="OperationDefinition-member-add" name="Member Add"/>
+<artifact id="StructureDefinition/atr-list-change-subscription" key="StructureDefinition-atr-list-change-subscription" name="Member Attribution List Change Subscription"/>
+<artifact id="Subscription/atr-list-change-subscription-example" key="Subscription-atr-list-change-subscription-example" name="Member Attribution List Subscription example"/>
 <artifact id="OperationDefinition/member-remove" key="OperationDefinition-member-remove" name="Member Remove"/>
 <artifact id="Organization/2" key="Organization-2" name="PRovider Organization Example"/>
 <artifact id="Patient/1" key="Patient-1" name="Patient 1 - Example"/>
@@ -64,6 +72,7 @@
 <page key="changes" name="IG Change History"/>
 <page key="index" name="IG Home Page"/>
 <page deprecated="true" key="history" name="IG Version History"/>
+<page key="subscription" name="Subscription Requirements"/>
 <page key="toc" name="Table of Contents"/>
 <page key="usecases" name="Use Cases and Overview"/>
 <page key="downloads" name="Useful Downloads"/>