avatar   Michel Rutten  

Forge 19.1 for STU3 - DevDays Boston 2018 Edition

Forge release 19.1 represents a minor update that fixes a couple of annoying issues introduced in the 18.6 release. All users are recommended to update to the latest version. You can download and install the latest version from Simplifier.

Update to FHIR API 0.96.1-alpha1

Release notes

Stability update with some bug fixes and improvements. Includes two bug fixes for the snapshot generator:

  • #611 Snapshot Generator fails for derived profiles with sparse constraints on some existing named slices
  • #620 Snapshot Generator ignores multiple codings with only display value

Improvements

  • Suppress SimpleQuantity errors
    The FHIR STU3 core specification contains a bug in the official definition of the SimpleQuantity datatype; the root element specifies a non-empty SliceName = "SimpleQuantity", which is invalid. This causes the snapshot generator to emit an error message when expanding any profile that (indirectly) references the SimpleQuantity datatype, such as an Observation profile. Strictly, the error is correct. However in Forge, this is confusing and not useful for the end user at all, since the issue originates from the spec itself. Forge now automatically fixes the core SimpleQuantity datatype definition during startup, by removing the invalid SliceName from the root element. By stripping the SliceName from the core definition, the snapshot generator no longer reports an error and user profiles no longer inherit the invalid SliceName.

  • Improved feedback when trying to connect with invalid credentials
    Forge now displays a friendly error message in case a FHIR server or Simplifier returns status code 401 (Unauthorized).

Bug fixes

  • Fix root element type corruption Forge release 18.6 introduced a bug where any change to a root element would also cause the root element type to change to "Resource", subsequently triggering a validation error. This issue now been fixed.

  • Fix empty authorization header In some circumstances, when connecting to a FHIR server anonymously, without specifying any credentials, Forge would add an empty authorization response header. The empty header would prevent connections to e.g. the HAPI FHIR server. The issue has now been fixed.

  • #611 Fix invalid interpretation of derived profile with constraints on existing named slices
    Note: a derived profile is allowed to append, not insert, new named slices to an existing slice group.

  • #620 Fix for snapshot generator issue concerning multiple codings with only a display value (reported by Carrick Gillespie)
    For a profile element that defines a list of codings with only display values, the generated snapshot would only include the first coding entry; remaining codings would be missing from the snapshot. This issue has now been fixed in the snapshot generator.

  • Allow extensions on root element of a DataType profile

  • Referencing profile should not inherit isModifier property from extension definition root When a profile references an external (primitive) extension definition marked with isModifier = true, then the the isModifier property value should NOT be inherited by the .extension element in the referencing profile.

  • Restore .StructureDefinition suffix in generated file names When you create a new profile, Forge now appends a resource type suffix to the generated file name, for example MyPatient.StructureDefinition.xml.

Other news from Firely
Ardon Toonstra
You now decide who can see that you work on a project. This release adds private user profiles and private team members, and brings Mermaid diagrams.
Ardon Toonstra
Firely Terminal `4.0.0` validates and runs Quality Control the way Simplifier does, and gives your pipelines better control over when a build fails. It is a major release: it runs on .NET 10 and the Firely .NET SDK 6, and a few things you may script against have changed.
Ardon Toonstra
The Forge 2026.3.0 release brings the two package changes Simplifier introduced this year to Forge: canonical pinning, and more than one version of a package in your project.
Ardon Toonstra
Simplifier now keeps every version of a package that your dependencies bring in and resolves your references predictably across them. This release also redesigns the guides overview and starts retiring DSTU2.
Ardon Toonstra
Earlier this year, we asked the Simplifier community how they use Simplifier, Forge, and Firely Terminal in their day-to-day FHIR work. First of all, thank you to everyone who took the time to participate.
Ardon Toonstra
Simplifier now runs entirely on Firely .NET SDK 6. This release brings a list of rendering improvements for your conformance resources, and consolidates our documentation in one place.
Ardon Toonstra
Forge 2026.2.0 upgrades the profiling engine to .NET 10 and Firely .NET SDK 6.2.1, adds support for the suppression extension, and speeds up loading of complex profiles. Quality Control now runs solely on the current Firely validator, and the Project view's Structure Type filter has been streamlined. Note that .NET 10 may need to be installed by your IT department on managed machines.
Ardon Toonstra
Simplifier.net now hosts country-specific results from the 2026 State of FHIR Survey, letting you explore how HL7 FHIR is being adopted in each participating jurisdiction.
Ardon Toonstra
This release lets you pin canonical references when creating a package, locking each one to the exact version it resolved to so your packages stay reproducible. Simplifier honours the version in a reference when resolving, with two new quality-control rules to help you pin safely. On top of that, the platform has moved to .NET 10, alongside a set of UI improvements and bug fixes.
Ardon Toonstra
The 2026 Simplifier User Survey is now open, and we need your input. Tell us which tools and features drive real value in your FHIR workflow, and where the platform can do better. It only takes a few minutes, and your response shapes what we build next.
SUBSCRIBE