## Validator Changes
* Fix problems validating variables
* No longer ignore hl7.org/fhir/tools when validating
## Other code changes
* Fixed bug with incorrect parameter type when POSTing a $validate-code request to a remote terminology server
* Fix OS issue with zipslip protection
* Fix for where profile_element extension was being ignored when checking types after snapshot generation
* Fix generated name for FML rules to be a valid name
* Allow loaders to decide which resources to load into the context
***NO_CI***
## Validator Changes
* Don't validate codes in value sets if terminology vlidation is turned… …
* Fix nPE validating bundles
## Other code changes
* Add file: to URL scheme list when checking for absolute URLs
* Adjust mappings handling code generating snapshots
* More improvements to r4/r5 transform testing
* Better error messages setting properties when transforming
* Better error messages converting types
* FHIRPath tests on element model
* Refactor FTPClient to perform fewer directory creates (#1159) …
* Document how to build validator_cli locally (#1171)
***NO_CI***
## Validator Changes
* Add format codes ```md``` and ```url``` to FHIRPath escape() and unescape()
* Add second parameter ```s_last``` to FHIRPath join() to use a different separator for the last time (e.g. ```.join(', ', 'and')```)
## Other code changes
* Parse status when parsing FML metadata
* Fix NPE in FHIRPath resolve() for contained resources ([discussion](https://chat.fhir.org/#narrow/stream/179167-hapi/topic/fix.20to.20FHIRPathEngine))
***NO_CI***
## Validator Changes
* no changes
## Other code changes
* Tdy up extensions for R5 release
* Hack R5 observation for fix after QA
* Improve StructureMap rendering again
* Clarify Error messages converting between versions
***NO_CI***
## Validator Changes
* Add support for new ColorRGB code system (special case)
## Other code changes
* Add support for special case code systems internally
***NO_CI***
## Validator Changes
* More validation of StructureMaps
## Other code changes
* Add new R5 version to R4 version enumeration
* Fix for NPE generating profile comparison
* Add FML renderer for StructureMaps + various parsing fixes
***NO_CI***
## Validator Changes
* Fix up issues validating whitespace
* Multiple fixes to StructureMap and ConceptMap validation
## Other code changes
* rename ig-r4.json to ig-r4.jsonx in IGs
* move R5 package to test cases
***NO_CI***
## Validator Changes
* Add ConceptMap validation
* Add StructureMap validation
* Validate using type regex (had been omitted to now, mostly affects decimal validation)
* Add new -output-style values compact and compact-split
* Fix bug validating CDA choice elements without [x] in their names
## Other code changes
* Various fixes and utilities to support StructureMap & ConceptMap validation
* Fix Observation.value conversion between R5 and other versions
* Recognise R4B and R5 core packages
* Improvements to specification diffference engine for R5 publication
* More efficient XHTML AST model
***NO_CI***
## Major change:
* New R5 release - rebuild R5 implementation, update a lot of related code
## Validator Changes
* Load separate R5 extensions package
* Load FML directly, and validate mapping as much as possible
## Other code changes
* Fix bugs in Java R5 code generator
* Add more control at the code level over how to handle unknown profiles when generating snapshots
* Rework ConceptMap for major R5 changes
* Fix bug in CommaGeneratedStringBuilder (calling toString() multiple times duplicated content)
* handle case [reference].where(resolve() is X) when analysing types+elements in FHIRPath statements
***NO_CI***
Grahame Grieve
markiantorno
Grahame Grieve