Introduction
Forge is the official HL7 FHIR Profile & Conformance editor.
Forge 23.0 for R4 is a minor update with some important bug fixes and improvements.
We recommend all users to update to this release.
Release information
This Forge release supports FHIR R4.
We publish separate Forge releases for FHIR DSTU2, STU3 and R4. Subsequent FHIR releases introduce breaking changes and are not backwards compatible. Each Forge release only supports a single FHIR version and is updated separately. Different Forge releases can be installed side-by-side on the same machine.
Visit simplifier.net to download the latest Forge releases.
IMPORTANT! Update to Forge End User License Agreement
To ensure continuity of Forge, we decided to make Forge part of the paid plans on Simplifier. On January 1st, 2020, we will issue a new license for Forge, replacing the current license. Forge will remain free for non-commercial use. Commercial use of Forge will be linked to the Simplifier pricing plans, which also give access to our support team and advanced features on Simplifier. Starting with the next release, Forge will require you to sign in to Simplifier with your personal user account, with a grace period to allow for offline usage. We are updating our Privacy Policy per Nov 1, 2019 to reflect that we are logging this contact.
Visit our company blog to read about our new licensing terms.
Dependencies
.NET Framework
Forge requires the .NET Framework 4.7.2.
The .NET Framework 4.7.2 is fully .NET Standard 2.0 compliant, without any additional dependencies.FHIR API
Update to .NET API for FHIR R4 version 1.4.0 (official release)
Change log on GitHub.
Release notes on Simplifier.Relevant bug fixes:
Improvements:
Enable Simplifier integration
The Import from / Publish to Simplifier commands have been updated to support the latest Simplifier API. Simplifier now also provides a FHIR R4 compatible API endpoint, enabling the integration features in Forge R4.Auto-repair common errors
Forge is capable of automatically repairing some common errors in profiles. When opening a profile, Forge will detect and try to correct known errors. The author can then review the corrected profile and save changes back to disk.Specifically, Forge detects and corrects some common errors in extension definitions and profiles that introduce external extensions:
- Auto-generate missing
[...].extension.url
elements - Rewrite
[...].extension.url:fixedString
tofixedUri
If you have authored profiles and extensions in a previous Forge R4 release or another tool, then we recommend that you open & save the extension definitions using this release, in order to apply corrections and ensure compliance to the FHIR R4 specification.
- Auto-generate missing
Bug fixes:
FOR-196
Ctrl+C
on validation warning may cause freeze
Some users reported that copying a validation message to the clipboard would freeze the application, possibly because the Clipboard was unavailable. Forge now catches unexpected exceptions while copying.FOR-316 Expand elements with complex types
In some circumstances, the previous release would not always expand children of elements with a complex type. For example, Forge would not expand children ofExtension.extension.value[x]
when constrained toCodeableConcept
. This was caused by (overly) aggressive cycle detection, which is required to prevent infinite recursion. The cycle detection logic has been improved to allow child element expansion whenever applicable. Also, Forge now dynamically expands the child elements of a type choice element (value[x]
) when constrained to a single complex type - unless the type choice element is (type) sliced.FOR-332 Show all element properties for closed slice
Forge no longer hides some element properties for a sliced element withSlicing.Rules = closed
FOR-334 Do not show extension definition selector for complex extension child elements
For profile extension elements that reference an external extension definition, instead of a list of element types (fixed toExtension
), Forge displays a command button that allows you to quickly open the target extension definition for editing. Forge now hides the Open... button for complex extension child elements (type.profile
is empty), as you cannot directly open a single child element of a structure. The Open... button is only visible on the root element of the referenced external extension.FOR-335 Forge sometimes does not rename choice type elements when constrained?
This issue has been solved by #1123 (ElementDefinition.base
empty forcontentReference
children)FOR-337
StructureDefinition.type
is editable for logical models
For constraining profiles and extension definitions, Forge auto-generates a read-only structure type code. However for logical models,StructureDefinition.type
should specify a fully-qualifiedUri
that uniquely identifies the logical type (similar to canonical url). Forge now exposes the structure type property of a logical model as an editable TextBox control, allowing the author to specify and modify the custom logical typeUri
. By convention, the last segment of the typeUri
should match the name of the root element, otherwise Forge will generate a warning.FOR-339 Generate
fixedUri
forExtension.url
(instead offixedString
)
Extension.url
elements are automatically generated by Forge and invisible in the UI. The previous 22.1 release introduced a bug where Forge would incorrectly generateExtension.url
elements with a fixed value of the wrong type (fixedString
instead offixedUri
). This has now been fixed. Forge will also try to auto-correct invalid input, i.e. convert existingfixedString
properties onExtension.url
elements tofixedUri
.Note: The core spec defines the
Extension.url
element with system typexsd:string
. Actually, the element value represents anUri
. However, this is hard coded knowledge that cannot be programatically derived from the core type definitions. FHIR R4 Technical Correction will address this issue by introducing improved system types declarations.FOR-342 Hide
ElementDefinition.sliceName
property for type slice entry element
Only show thesliceName
property for the actual type slices of type choice element ([x]
). Forge will automatically generate a standard slice name when a slice is constrained to a single datatype (valueString
). Always hide thesliceName
property for the original[x]
element (even if constrained to a single type), to prevent the author from inadvertently specifying a slice name on the slice entry element itself.FOR-344 sliced element cannot be unsliced when cardinality is set to
0..0
Forge would prevent you from unslicing a sliced element if maximum cardinality is constrained to0
. This has been fixed.
Blog
Visit our Firely website to read more about the new licensing terms.
Feedback
If you want to ask us a question, submit a comment or report an issue, you can contact us at forge@fire.ly.
Go Forge and simplify!