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InterSystems Official Daniel Palevski · 36 min ago

April 14, 2026 – Advisory: InterSystems IRIS for Health and InterSystems Health Connect 2026.1.0 FHIR Interfaces Broken When Using Non-Default Path Prefix

Summary

Advisory ID

Product & Versions Affected

Risk Category & Score

Explicit Requirements

IF-9396

InterSystems IRIS® for Health

InterSystems Health Connect™

versions 
2026.1.0

System Stability Concern: 3

Deployments with non-default path-prefixes will not serve FHIR Server UIs.

Issue

  • Deployments do not serve FHIR Server, bulk FHIR, FHIR SQL, or associated security user interfaces when using a non-default path prefix. For example, when using logical path configurations with Windows IIS, Apache, or other web servers.
#InterSystems IRIS for Health #Health Connect #InterSystems Official #FHIR #Release
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Question Norman W. Freeman · 2 hr ago

How to use JobServer properly to have a certains amount of IRIS processes available amongs multiple Apache nodes ?

I use cspa24.so Apache module to connect to IRIS. I have notified that idle Apache processes will always result in connections being kept open to the IRIS server, and thus some amount of IRIS processes being kept alive (and dedicated to those apache processes) because of those connections.

Eg: if I have 50 idle Apache processes, I will have 50 IRIS processes being kept alive in IRIS even if there is no client connection being made at that time. 

It's even worse with multiple Apache nodes and a load balancer.

#InterSystems IRIS
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Article Iryna Mykhailova · Oct 19, 2020 3m read

How to Download and Install InterSystems IRIS

Before you can start building with InterSystems IRIS, you need a working local or server installation. This guide walks through downloading the distribution and installing IRIS on Windows in a straightforward way, focusing on the steps and decisions that matter in a development setup.

I’ll cover where to get the appropriate version, what prerequisites to check before installing, and how to run through the installer on your platform. The goal is to get you to a clean, usable environment with minimal friction, so you can move on to writing code, exploring the data platform, and integrating with your existing tools.

To download a Community version, please read this article: How to get InterSystems IRIS Community Edition. It explains the different ways to obtain InterSystems IRIS Community Edition, highlighting options for local, containerized, and cloud-based setups. It shows how to use Docker to quickly pull and run a ready-to-use IRIS instance. You can also learn how to deploy IRIS in the cloud via marketplaces like AWS to avoid local installation. What's important here, this guide walks through downloading an install kit from the InterSystems Evaluation Service and selecting the right version and platform.

#InterSystems IRIS #Beginner #Tips & Tricks
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Article Sammy Lee · Aug 28, 2025 1m read

Convert Python %SYS.Python List to %Library.DynamicArray in Objectscript

As part of a recent documentation technical project to optimize the search, I needed to use Embedded Python in my ObjectScript code. The main blocker was passing a Python list from a Python class method to a ObjectScript method. Sending the list by reference to the python method, populating it with the Insert() method, and returning the reference to the ObjectScript method resulted in an list with type %SYS.Python, a process that was straightforward but not efficient.
I explored an alternative method: converting a Python list to an ObjectScript list using JSON as the intermediary format.

#InterSystems IRIS #Embedded Python
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New
Question Scott Roth · Apr 13

Code not always updated in Mirror?

This past weekend we ran into something odd. When we failed over our mirror from 2022.1.3 to 2025.1.3 the one of the Business Rules that was on what became the Primary (2025.1.3), had a rule within it that was removed back in January. When the Failover occurred, we had to scramble to backup, disable, and remove the Rule that shouldn't have been there. 

Both the Data and Code live within the same IRIS.dat that is the main MIRROR database for that Namespace. 

If this happened to one Class file, could it happen to others we do not know about?

#InterSystems IRIS for Health #Health Connect #InterSystems IRIS #Mirroring #ObjectScript #System Administration
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New
Question Mark Charlton · Apr 13

Claude Code vs ISFS. Has anyone cracked how to get one to see the other?

I'm starting to play more with AI enabled coding. 
I've been using Github Copilot inside Visual studio code, which is very good at coming up with autocomplete suggestions that are accurate and useful. (Along with some utter rubbish, naturally).
For web development I'm starting to use Claude Code in VS Code to help create web sites and integrations. I want to see how it can help with IRIS development. 

However I can't get claude to read any iris code directly as I'm connected to my server via isfs server connections.

#InterSystems IRIS #Artificial Intelligence (AI) #Development Environment #Generative AI (GenAI)
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Discussion Anastasia Safronova · Mar 30

READY 2026: What are you most excited about?

READY 2026 is almost here, and we’re really curious to hear what everyone is looking forward to this year 🚀

What are you most excited about? It could be a topic you want to explore, a question you’re hoping to get answered or something you’re simply curious about.

Share your thoughts below! We’d love to hear what’s on your mind and see what others are excited about too 💬

Feel free to read through the replies and like the ones you relate to! 😊

#Global Masters #READY 2026
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New
Article Kate Lau · 10 hr ago 3m read

How I usually learn InterSystems IRIS (resources + notes)

Hi, every one. Again, it's me!!😀😀

Recently I was trying to organize some learning materials for InterSystems IRIS😆, and realized that the resources are actually quite scattered.🤐

So I put together a list here—grouped by categories—for anyone who:

  • is new to InterSystems
  • or wants to go deeper into specific areas

Also adding some of my own experience on what worked (and what didn’t, may be only not work for me🤫🤐).

1. For starters

If you don’t know where to begin, start here:

#Resource Library #InterSystems IRIS #InterSystems IRIS for Health #Learning Portal #Open Exchange #Beginner #Tips & Tricks
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New
Article Jinyao · Apr 2 2m read

No-Hallucinate MCP: Real-time Routine Context for ObjectScript

Motivation

Why do we need this?

  1. Lack of Compiled Context: AI tools only see source code; they don't know what the final compiled routine looks like.

  2. Macro Hallucination: Because AI doesn't see our #include files or system macros, it often makes them up, wasting time during debugging.

  3. The Documentation Gap: Deep logic optimization often requires understanding internal macros that aren't fully covered in public documentation.

  4. Manual Overhead: Currently, the only way to fix this is to manually use the IRIS VS Code extension to find the "truth" in the routine.

#Caché #InterSystems IRIS #Open Exchange #Artificial Intelligence (AI) #Generative AI (GenAI)
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New
Article Muhammad Waseem · 7 hr ago 10m read

Introduction to Interoperability on Python (IoP) - Part3

Hi Community,

In our two preceding articles, we explored the fundamentals of the Interoperability Embedded Python (IoP) framework, including message handling, production setup, and Python-based business components.

In this third piece, we will examine advanced methodologies and practical patterns within the IoP framework that are pivotal for real-world interoperability implementations.
We will explore the following topics: 

✅ DTL (Data Transformation Language) in IoP
✅ JSON Schema Support
✅ Effective Debugging Techniques

Collectively, these features help us create maintainable, validated, and easily troubleshootable production-grade interoperability solutions.

#InterSystems IRIS for Health
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Announcement Anastasia Dyubaylo · Feb 26

InterSystems READY 2025 Alumni – record a video to inspire the next wave

Hey Community!

Have you attended one of the Global Summits or a previous READY 2025? We’d love your help to inspire others to join InterSystems READY 2026!

We’re inviting community members to record a short video (less than 1 minute) answering one or more of these questions:

  • What did you find most valuable about attending?
  • What surprised you?
  • Why should others join READY 2026?
  • Who would benefit most from attending?

Your authentic perspective helps future attendees understand the real impact of these events, beyond the agenda.

🎥 To record a short video, follow the link. No preparation needed.

#Summit #READY 2026
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New
Article Anastasia Dyubaylo · Apr 13 3m read

Celebrating a Seasoned Craftsman of the Developer Community

Every great community is enriched by those who work tirelessly behind the scenes, crafting the knowledge and resources that help others grow. In the InterSystems Developer Community, one such person is @Derek Robinson — a dedicated educator, whose passion for teaching has helped shape how developers everywhere learn to work with InterSystems technologies.

👏 Let's take a closer look at Derek's journey in the InterSystems ecosystem.

#Developer Community Official
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Contestant
Article Yuri Marx · Apr 13 5m read

The PACELC theorem and the InterSystems IRIS

The PACELC theorem was created by Daniel Abadi (University of Maryland, College Park) in 2010 as an extension of the CAP theorem (created by Eric Brewer - Consistency, Availability, and Partition Tolerance). Both help design how to architect the most suitable operation of data platforms in distributed environments under the aspects of consistency versus availability. The difference is that PACELC also allows analysis of the best option for non-distributed environments, making it the gold standard for considering all possible scenarios to define your deployment topology and architecture.

The CAP theorem states that in distributed systems, it is not possible to have consistency, availability, and partition tolerance simultaneously, requiring a choice of two out of three, according to the following diagram.


Source: https://medium.com/nerd-for-tech/understand-cap-theorem-751f0672890e

#InterSystems IRIS #Distributed Data Management #High Availability #InterSystems Business Solutions and Architectures #Performance
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Announcement Irène Mykhailova · Mar 10

[Sweepstakes] Suggest topics for our next free hands-on tutorials!

Hi Community!

We’re building a series of short, hands-on Instruqt tutorials to help newcomers get up to speed with InterSystems technologies faster and more effectively. To kick things off, we’ve just released a new tutorial, “Data Models of InterSystems IRIS,” covering the fundamentals of the IRIS multimodel approach. This is exactly the type of focused, concise, practical learning experience we want to expand. And this is where you come in!

We’d love to hear your ideas for other tutorial topics to help developers new to InterSystems IRIS take their first steps with confidence. Please welcome the new sweepstakes:

💡 Topics for hands-on Instruqt Tutorials 💡

#InterSystems Ideas Portal #Sweepstakes #Tutorial
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New
Question Mauricio Sthandier · Apr 12

CREATE TABLE from another server query

hi 😊,

i'm able to LOAD DATA in IRIS from a rather complex, say Oracle's, query. It works pretty well but requires a target table created aforehand:

LOAD DATA FROM JDBC CONNECTION SOME_OTHER_SERVER QUERY 'complex query here' INTO TargetTable

is there a way to base such target table on the same query ? 
CREATE FOREIGN TABLE seems to require a column definition which I would prefer to be taken from the query
CREATE TABLE AS SELECT seems to be for local queries and other methods, like Linked Table Wizard or %SYSTEM.SQL.Schema.

#Documentation #Other #Data Import and Export #JDBC #Java #Mapping #SQL
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New
Question Jainam Shah · Apr 12

EnsLib.EDI.ASTM.Service.TCPService — CELL-DYN Ruby Link Test fails with EOTOPTIONAL=1, instrument shows Status DOWN despite ACK being sent

Hello,

I am working on integrating a CELL-DYN Ruby hematology analyzer (Abbott) with InterSystems Ensemble using the ASTM E1394 protocol over TCP/IP via a Digi One SP serial-to-TCP converter. I am facing a persistent issue where the Link Test keeps failing on the CDRuby side and the Transmit button remains greyed out. I have overridden EOTOptional=1 in the service class file as Ensemble was not able to send ACK after ENQ. Now I am getting below logs like Machine sends ENQ, Ensemble sends back ACK and Machine sends EOT instead of STX.

#Ensemble #ObjectScript
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Announcement Olga Zavrazhnova · Mar 16

InterSystems Developer Ecosystem Annual Survey 2026

Hey Developers,

Thank you for being part of the InterSystems Developer Ecosystem! 
We truly appreciate your participation across the Developer Community, Open Exchange, Global Masters, and the Ideas Portal.

Each year we run a short survey to understand how we can improve our platforms and better support developers like you. Your feedback helps us shape the future of the ecosystem.

Please take a few minutes to complete the survey:

👉 InterSystems Developer Ecosystem Annual Survey 2026 (3-5 min, 12 questions)

Note: The survey takes less than 5 minutes to complete.

#Developer Community Official
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Article Tani Frankel · Jan 22 4m read

IRIS Cloud Document - Beginner Guide & Sample : Part I - Intro and Quick Tour

If you already know Java (or .Net) and perhaps also have used other document databases (or looking for one), but you are new to the InterSystems world, this post should help you.

InterSystems IRIS Cloud Document is a fully managed document database that lets you store JSON documents and query them with familiar SQL syntax, delivered as a cloud service managed by InterSystems.

In this article pair I’ll walk you through:

  • Part I - Intro and Quick Tour (this article)
    • What is it?
    • Spinning up an InterSystems IRIS Cloud Document deployment
    • Taking a quick tour of the service via the service UI
  • Part II - Sample (Dockerized) Java App (the next article)
    • Grabbing the connection details and TLS certificate
    • Reviewing a simple Java sample that creates a collection, inserts documents, and queries them
    • Setting up and running the Java (Dockerized) end‑to‑end sample

The goal is to give you a smooth “first run” experience.

#InterSystems IRIS #Cloud #Databases #JSON #Java #SQL
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Article Peter Steiwer · Jan 21 2m read

IRIS BI Dependent Cube Update Changes

Starting with InterSystems IRIS 2025.1, the way dependent cubes are handled in cube builds and cube synchronizes was changed.

This change may require modifying custom build/synchronize methods. If you are using the Cube Manager, these changes are already considered and handled, which means no action is needed.

Prior to this change, cubes were required to be built and synchronized in the proper order and account for any cube relationships/dependencies. With this change, dependent cubes are automatically updated as needed when using the %BuildCube or %SynchronizeCube APIs.

#InterSystems IRIS #Analytics #Compatibility #Cubes
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New
Question Pietro Di Leo · Apr 10

Using InterSystems Server VSCode extension in client side mode with projects

Hi everyone,

I was wondering if it is possible to use the InterSystems Server VSCode Extension to work in client side mode but importing locally the content of a project without having to choose the files manually.

It would be awesome to have all project-related assets synchronized in one go. Relying on InterSystems Projects (.prj files) would be convenient for several reasons:

  1. Projects bundle different file types (CLS, MAC, INT, CSP). Importing the project as a whole is much more efficient than picking individual files piece by piece.
#InterSystems IRIS #VSCode
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Article Iryna Mykhailova · Apr 9 3m read

Embedded Python programming with Claude Code: A bit of a trap

Claude Code has a strong understanding of IRIS, but unexpected issues still occur.

The first issue is one that has already happened several times and is likely to continue occurring if not properly addressed.

In IRIS, the collation for string data (%String) is set to SQLUPPER by default. As a result, when data is retrieved via SQL, it may be returned in uppercase (for example, when sorting and aggregating with GROUP BY).

#InterSystems IRIS #InterSystems IRIS for Health
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Question Evgeny Shvarov · Feb 5

Building a dynamic Object: how can I use variables?

Hi developers!

In a method I need to return a result as a dynamic object aka JSON Object. And here is my logic:

Classmethod Planets() as %DynamicObject {

 set val1="Jupiter"
 set val2="Mars"
// this doesn't work! cannot compile
 return {"value1":val1, "value2":val2}

}

So I need to do the following:

#Health Connect #HealthShare #InterSystems IRIS #InterSystems IRIS for Health #JSON #Key Question #ObjectScript
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Article Robbie Luman · Aug 15, 2025 7m read

Beginner's Guide to %JSON and Dynamic Entities in IRIS

Dynamic Entities (objects and arrays) in IRIS are incredibly useful in situations where you are having to transform JSON data into an Object Model for storage to the database, such as in REST API endpoints hosted within IRIS. This is because these dynamic objects and arrays can easily serve as a point of conversion from one data structure to the other.

#InterSystems IRIS #Code Snippet #Data Import and Export #Data Model #JSON #Key Value #Object Data Model #ObjectScript #Tips & Tricks
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Announcement Larry Finlayson · Apr 9

HealthShare Unified Care Record Fundamentals – Virtual May 4-8, 2026 / Registration space available

HealthShare Unified Care Record Fundamentals – Virtual* May 4-8, 2026

*Please review the important prerequisite requirements for this class prior to registering.

  • Learn the architecture, configuration, and management of HealthShare Unified Care Record.
  • This 5-day course teaches HealthShare Unified Care Record users and integrators the HealthShare Unified Care Record architecture and administration tasks. 
  • The course also includes how to install HealthShare Unified Care Record. 
  • This course is intended for HealthShare Unified Care Record developers, integrators, administrators and managers.
#HealthShare
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Announcement Irène Mykhailova · Apr 9

InterSystems Ideas News #28

Hi Community!

Welcome to Issue #28 of the InterSystems Ideas newsletter! Let's look at the latest news from the Ideas Portal, such as:

✓ General Statistics
✓ Update on the current sweepstakes
✓ Your ideas implemented by InterSystems

And a little teaser: look forward to an exciting initiative linking Ideas Portal, Open Exchange, Global Masters, and Developer Community!

#InterSystems Ideas Portal
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