avatar   Ward Weistra 🔥  

Yesterday we hosted our 4-monthly customer webinar, where we always inform our professional customers first of what's new in Simplifier.net and Forge. Below I will summarize the highlights from this week's releases!

Forge: Fixes and R5 for the virtual HL7 FHIR Connectathon

We are releasing the first version of Forge for the upcoming FHIR R5!

The HL7 FHIR Connectathon 24 begins today, where professionals from all over the world come together to bring the FHIR standard even further. Why not use Forge R5 to play around with the new FHIR version? Since it’s virtual this time, you can download all the new Forge releases you want without overloading the WiFi network 😉

And as always, we released new versions of Forge for the stable FHIR STU3 and R4 versions, fixing bugs and improving the overall experience of profiling.

One major fix is the prevention of (and even removal of) the numerous structuredefinition-standards-status and structuredefinition-normative-version extensions that were popping up recently. While this was technically correct according to the FHIR spec, it was clearly not what we all want. So we are now working with the FHIR community to fix this in the specification and are removing them from your profiles for now.

Simplifier.net: Scope your resolving, validation and Implementation Guides

In our ongoing effort to allow you to be specific on your scope with FHIR packages we have taken another few big steps:

  • On the Resolve page you can specify in exactly what package (and it's dependencies) you want us to look
  • On the Validation page you can specify against what package you want to validate
  • On your Snippets (quick, sharable FHIR resources) you can now specify their package scope
  • In every Implementation Guide you can now refer to resources by canonical and set the scope of your IG in the settings

On the Validation page we also made it simpler to edit the resource you entered (just hit Back) and to save your content as a Snippet to save and share it.

More on packages: On the page of every FHIR package you can now download the package with snapshots included. Very useful for many tools that can't generate them.

We've also added made it possible to suppress any errors and warnings that come from known issues in the FHIR spec, like these ones.

Finally, we fixed many smaller and larger bugs, including an issue that created duplicate files in projects when connected to Github. Impacted users have been notified. It is still possible to create duplicate files in your packages (see the known issues), but we'll work to prevent that for you.

Other news from Firely
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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