## Validator Changes
* New Feature: Validating references: parameters -check-references and -resolution-context
* New Feature: Use AI Service to validate CodeableConcept.text (very experimental)
* Add AI validation tests as a command line option ([-aiTests](https://chat.fhir.org/#narrow/channel/323443-Artificial-Intelligence.2FMachine-Learning-.28AI.2FML.29/topic/LocalAI))
* Don't enforce code system property references to standard properties in R4 (R4 hack workaround)
* Correctly handle supplements when validating based on expansions
* Fix issues with version dependent resolution of correct server for implicit value sets
* Better handle failure to find imported value sets when expanding
* correct error handling for expansion failure
* Correct grammar in language about resource not being valid against a profile
* use IPS 2.0.0 for `-ips`, not an old copy
* Fix NPE generating snapshots with expansions
* Rework `-txTests` to support additional test files and improve R4/R5 logging
* Fix bugs in RulesDrivenPolicyAdvisor
* Accept property in CodeSystem without requiring it be backed by a code
* Add issue when extension is deprecated
## Other code changes
* Track & report expansion source when rendering ValueSet expansions
* Render ValueSet supplement dependencies
* Add server headers to fhir-settings.json
* find places where ManagedFileAccess was missed
* Fix Actor rendering in obligations tables
* Renderer: move xml-no-order to tools ig
* Resource Factory: support for range in sheet for instance generation (#1881)
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## Validator Changes
* Do not create issue about draft dependency for example bindings
* Beef up validation of CodeSystem properties that are codes
* Make sure all validation messages have a message id
* Validator enforce version-set-specific value for Extension and Extension context
* Specific Error when ValueSet.compose.include.system refers to a ValueSet
* Fix NPE processing code system supplements
## Other code changes
* Report count of tests in output from TxTester
* resolve issues with references between IGs to example resources
* Lookup compliesWithProfile target from link-only dependencies
* Update SNOMED editions related routines (add more editions)
* Accessibility - role=presentation on appropriate tables
* Add support for ADL in packages
* Support for Archetype processing in IG publisher
* Lazy load binaries for reduced memory usage
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