## Validator Changes
* Allow binding as a type characteristic for Extension
## Other code changes
* OID support refactoring
* Remove Contributor Datatype from R5
* R5 Build efficiency fixes
***NO_CI***
## Validator Changes
* fix erroneous type characteristics error in StructureDefinition.differentials
## Other code changes
* ValuesetExpansion: Pay attention to inactive property, and activeOnly parameter
* fix broken paths rendering extensions
* Process markdown in code definitions when rendering ValueSets
* Fix duplicate ids in generated questionnaires
* Add types to wildcard list
***NO_CI***
## Validator Changes
* Improve support for example code systems in example mode
## Other code changes
* Render Comments as span titles in ProfileDrivenRenderer
* Fix type analysis in FHIRPath for abstract types
* Terminology utilitty improvements for fhir-types code system
* Lighten invariant background colour
* Fixes to DateTimeType for setFieldValue() method
***NO_CI***
## Validator Changes
* no changes
## Other code changes
* Return lists for FHIRPath constants in r4
* FHIR-25206 handle deprecated concepts properly when expanding value sets
* Fix SHEX generation issue
* Fix ConceptMap rendering column title
* Fix problem rendering ConceptMaps in value sets
* Fix NPE issue rendering resources without ids
* Improvements to SearchParameterRenderer
* Add Reference.resource to output of copy()
* Migration of r5 changes to r4b
* Bundle rendering improvements
* Fix loading canonical resources so that duplicates with different versions is OK
* Fix generation of profiles on Resource.id
***NO_CI***