## Validator Changes
* Major rework of tx and validation test cases associated with reworking terminology / validator interface and ongoing testing + reconciliation with Ontoserver
major upgrade to validation - use terminology server to perform more logic, and standardise interface based on agreements with Vocab & Ontoserver
* Improve slicing error message
* Add warning to user when referencing an extension that doesn't exist in FHIRPath
* Fix bugs in FHIRPath implementation of split() and join()
* Fix bug handling null objects in JSON (R5)
* Fix for missing search parameter definition in R4
* fix bug handling XML name extension
* Fix FHIRPath validation errors around use of %resource and %rootResource
* Correct validator enforcement of minValue for decimal and integer (#1538)
## Other code changes
* Properly populate property definitions in expansions
* Add CVX Importer
* R6 release support
* IPS tool development
* Improved errors publishing IGs
* Refactor Context to support multiple terminology services
* change type of error when value set circularity found
* Track generated side files when rendering resources
* Support for extended Unicode characters in XHTML / XML / JSON / Turtle
***NO_CI***
## Validator Changes
* Fix up validation of fragment and example value sets
* Improve handling of terminology messages + handling of example and fragment code systems
* Add support for logical_container extension (for CDA constraint validation)
* Clean up handling of xml_name
* Check for xver extension canonical urls when validating uri elements
* Upgrade xver to latest R5 definitions
## Other code changes
* Fix string index error in xver manager
* Fix rendering of type for previous versions
***NO_CI***
## Validator Changes
* Fix bug where validator doesn't actually validate web sourced input
* Fix narrative link validation and add id/idref validation
* Remove fhir-test-cases from Validator CLI JAR (#1497) (reduce size)
* Fix to CDA xsi:type validation per SD decision
* Apply regex pattern to literal format if defined
* Improvements to vital signs related messages
* Fix R4 con-3 FHIRPath expression
* Fix bug loading packages with partially specified version that doesn't exist
* Fix for occasional missing warnings around bundle link validation
* Fix using wrong resource type when validating constraints in data type definitions during R6 build
* Fix NPE in validator processing CCDA examples
* Fix problem with version dependencies when loading npm packages directly as files
* Fix for SearchParameter validation using custom resource types
## Other code changes
* Bump commonmark version
* fix Utilities display of time periods (fixed width hour:min)
* Fix stated path for error when code not in value set
* Fix rendering of trigger definition using tables inside paragraphs
* Update VSAC importer to fix timeout issues
* Refactor FHIRPath java package
* Fix problem with profiled resources being called examples in IG publisher
* Remove dependencies for unused UI experiment (#1465)
* Remove AU connectathon
* Include hamcrest dependency
* Fix breaking ValidationEngineTests
* Give kinder error message for missing param
* Fix commonmark group and bump version (#1500)
* Remove dep used for local testing
* Bump jackson & logback versions
* Fix StringType element properties not being copied in various Address, HumanName convertors
* Handle all initial value types when rendering Questionnaires
* Ensure Address.line[] element data is copied over
* Write locking on FilesystemPackageCacheManager
* Fix problems setting owning committee consistently
* Utility classes for fule system package cache pre-loading
***NO_CI***
## Validator Changes
* Fix validator not allowing canonical resource extensions in canonical resources in bundles
* Fix bundle validation error on intneral link checking
* Check parameter type for FHIRPath where() and all()
* Validate that composite search parameters have components
## Other code changes
* Refactor timeout control on client
* Support IPS in validation tests
* Remove orphan R4B test
* Improve expansion error messages
* Fix expansion language - don't set for displayName parameter
* Adjust value set rendering for fragment code systems
* Fix NPE rendering some resources
* Fix rendering of TriggerDefinition
* Support parsing ad-hoc json data type fragments
* More memory work for IG Publisher
* Move ILoggingService & VersionUtil
* Fix timeout issue in vsac
* Introduce ips builder + Infrastructure changes for IPS builder
* Move json and xml extensions from extensions pack to tooling ig
* Add support for rendering union and intersections of profiles in profile comparison
* FHIRPath iif() test case fixes
* Add support for IPS validation in test cases
* Fix for broken markdown re-processing
* Improve identifier rendering
* Fix committee URLs
***NO_CI***
## Validator Changes
* Add support for NZ IPS
* Don't fail on erroneously repeating elements, and more bundle link validation
* Rework bundle references validation
* Fix problem creating CDA type discriminators
* Fix bundle resolution rules to conform to the specification in version R4+
## Other code changes
* Fix issue where markdown with multiple characters was being cut off sometimes
* Fix bundle resolution rules to conform to the specification in version R4+
* More work on versioned API
* Fix up VSAC import for large value sets
* Fix FHIRPath cda tests for empty package cache
* Fix problem with R3 expansion
* Add support for CCDA .hasTemplateIdOf(canonical)
* Fix issue where markdown with multiple characters was being cut off sometimes
***NO_CI***
## Validator Changes
* Remove wrong LOINC code for circumference % from vital signs scan
* Remove spurious error when profile discriminators have no value
* Fix as() and ofType() in FHIRPath engine to support type namespaces properly
* Fix problem with FHIRPath engine wrongly checking types in context of CDA
* Fix date validation error in CDA validation
* Update error handling to preserve message ids properly
## Other code changes
* Add rendering of II.system
* Fix extension handling when generating snapshots - which are ignored, overwrite, or add
* Delete some empty java files
* Remove unnecessary snapshot tests
***NO_CI***
## Validator Changes
* Validate Vital signs Profiles when validating observations
* Hack around problem with vs-1 constraint in R4
* Check for retired status when multiple OID matches exist
* Fix for validating extensions on R5 resources in R4 (R4 special case)
* Minor fixes for standalone ViewDefinition validator
## Other code changes
* Revised Capability Statement rendering (Thanks Vassil Peytchev)
* Fix bug rendering primitive types with an extension that provides a value alternative
* Add links to references when rendering json and xml instances in IG publisher
* Fix bug generating profile spreadsheets
* Support suppress examples when generating snapshots
* VSAC Import improvements
***NO_CI***
## Validator Changes
* Validate contextInvariant in extension definitions
* fix Typo in TI WG name
* Handle unknown constants properly in FHIRPath
* Fix handling of type ancestors at the root of FHIRPath expressions
* CDA templates with no extension value use urn:oid: not urn:hl7ii:
* Allow URL as a type of string in FHIRPath type checking
* Fix semver validation
* Fix problem resolving context in CDA invariants
## Other code changes
* Finish SQL in FHIR Implementation, but disable sql on fhir tests until package is packaged properly by next release of IG publisher
* Fixes to Search Parameter rendering per FHIR-I decision
* Fix broken links in extension references done by [[[]]]
* Fix broken links in code system rendering of parents
* Support using names in [[[markdown]]] when rendering
* Remove "profile" from tx operations
* Include checkIPSCodes and bundleValidationRules in json
***NO_CI***
## Validator Changes
* Validation by templateId for CDA
* Fix NPE validating concept maps
* Update ViewDefinition validator for change (alias -> name)
* Fix for NPE validating sql-on-fhir ViewDefinition
* Fix for index out of bounds error when extension uses itself
* Fix issue where .resolve() in FHIRPath didn't work with URL values (and fix typo in i18n system)
* Implement FHIRPath slice() function in validator
* Fix bug where Snapshot generation can run off the end of the differential
## Other code changes
* Breaking API Change: Revise FHIRPath API so hosts can evaluate expressions in custom functions
* Add package use tracking to FHIR cache for validator.fhir.org
* Support for instance-name and instance-description in IG publisher
* Element.removeExtension (support for instance-name and instance-description extensions in IG publisher)
* Split terminology service tests
* Hack for wrong URLs in subscriptions backport
* Remove dependencies for unused UI experiment
* More improvements to profile code generation
***NO_CI***