## Validator Changes
* Handle terminology server errors better
## Other code changes
* Fix expansion related bugs and adjust tests accordingly
* Update test framework for changes to expansion functionality
* Update presentation of fixed and pattern values in profile views
* Handle toString for XhtmlNode when nodeType == null
***NO_CI***
## Validator Changes
* Fix issues with multiple terminology servers (should be live soon)
* Rework terminology system & cache to support new terminology server ecosystem
* Handle value set with exclusion filters when expanding
* Fix to consistent error messages when value sets can't be resolved
## Other code changes
* Fix bug processing empty structure maps
* Performance improvements to common IO routines, with test cases - see https://blog.qligier.ch/posts/2024-improving-perf-ig-publisher-io/ (thanks to Quentin Ligier)
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## 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
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