• Created EndpointType extension, code system, and value set for Passthrough Node or Responding Node; added Endpoint.extension:endpointtype [0..1] to SequoiaEndpoint
• Deprecate DOA "Delegation of Authority" identifier type code in SequoiaIdentifierCodes
• Fixed QA publisher errors
• Updated IG version: 1.6.0

• Updated AuthorityDelegation search parameter code from "authorityDelegation" to "doa"
• Updated OperationsState search parameter code from "operationsState" to "soo"
• Updated PurposeUse search parameter code from "purposeUse" to "initiating-pou"
• Changed severity of the so-1 constraint on SequoiaOrganization from warning to error
• Updated IG version: 1.5.0

• Added TEFCA ID to CodeSystem: SequoiaIdentifierCodes
• Added TEFCA ID to SequoiaOrganization Organization.identifier
• Added search parameter AuthorityDelegation
• Added search parameter ManagingOrganization
• Added search parameter OperationsState
• Added search parameter PurposeUse
• Updated Extension - Delegation of Authority description
• Updated Extension - Transaction context to include Organization; added descriptions to Transaction and its uses in SequoiaOrganization and SequoiaEndpoint
• Updated IG version: 1.4.0

• Added "LastUpdate" (Extension) with description: "This extension uses AuditEvent resource to capture the date changed (last updated) value in date format with option for description text, such as reason for change."
• Included LastUpdate (Extension) in SequoiaEndpoint profile
• Updated IG version: 1.3.0

The following changes were made to the TransactionCodes code system

• Added "Direct Messaging"
• Deprecated "RAD-75 aysnc" to due a misspelling. Will remove in a future version of the IG
• Added "RAD-75 async" (corrected version of the code above)

• Updated for new versioning scheme
• Minor changes to CapabilityStatement

• Added the following codes to RCEPurpose code system:
  T-HCO-CC "Care Coordination/Case Management"
  T-HCO-HED "HEDIS Reporting"
  T-HCO-QM "Quality Measure Reporting"

• Added T-TREAT (Treatment) to RCEPurpose code system, and changed the description for T-TRTMNT to "TEFCA Required Treatment"
• Fixed typo in FHIRIGConformance extension name
• Fixed case issue with slice names
• Removed unnecessary indenting in table of contents
• Changed IG source format to FHIR ShortHand (FSH)

• Updated home page to remove mentions of specific directories
• Added T-PH-ECR and T-PH-ELR codes to the RCE-Purpose code system

• Changed Delegation of Authority (DOA) from a slice on Organization.identifier to an extension of type reference
• Corrected NAICS identifier slice to NAIC
• Added constraint (warning) on Organization requiring the NAIC slice on Organization.identifier if Organization.type:hl7role = payer
• Added constraint on Endpoint requiring the Version extension to contain a valid FHIR version if the Transaction extension is set to "FHIR REST"
• Added minimal example Endpoint resource showing a FHIR endpoint
• Added minimal example payer Organization with NAIC identifier
• Minor updates to existing examples
• Updated RCE-Purpose CodeSystem to comply with the ShareableCodeSystem profile
• Refined FHIRPath expressions in several constraints
• Added new FHIR ImplementationGuide Conformance extension that can list which IGs an Endpoint conforms to when the transaction type is FHIR REST.

• Corrected cardinality of DOA slice in Organization.identifier in SequoiaOrganization from 1..1 to 0..*
• Changed EndpointConnectionType value set to refer to the latest version of http://terminology.hl7.org/CodeSystem/endpoint-connection-type in THO, which restores mistakenly deleted IHE codes
• Added NAICS slice to Organization.identifier
• Added "FHIR REST" to the Transactions code system
• Added documentation to the Version extension noting that when the transaction is FHIR REST then Version indicates the FHIR version supported by the endpoint

• Added Delegation of Authority (DOA) to Sequoia Identifier Code System and Value Set
• Added DOA slice to Organization.identifier in SequoiaOrganization
• Updated Initiator Only Code System and Value Set to remove GOV and add OBO (On Behalf Of) and OTHER.

• Primary API page now points to the core FHIR REST API page. Documented key changes in the DELETE operation (now uses FHIR versioning vs. setting Organization.active to false). Moved legacy API documentation to a sub-page that can be later removed when all directories have moved off the Ruby directory code.
• Removed the references and web application gui pages since they are no longer relevant.
• Removed some unneccessary/redundant examples.

• Added RCE-Purpose code system
• Added RCE-Purpose-VS value set
• Changed binding on PurposesOfUse extension from required to preferred to allow the RCE to use it's own value set

• Changed cardinality for Sequoia Organization – Organization.identifier:AAID from 0..1 to 0..*
• Changed cardinality for Sequoia Endpoint – Endpoint.identifier:AAID from 0..1 to 0..*