Welcome to the 2025 third quarter update.

Last quarter, we had a few important announcements that are worth reiterating this quarter.

• RHEL 10 support was added to IRIS 2025.1
• 2025.3 will use OpenSSL 3 across all operating systems  SUSE 15 sp6 will be the minimum OS for orgs using SUSE
• The minimum CPU standards are going up in 2025.3
• Older Windows Server operating systems will no longer be supported in 2025.3

If you’re new to these updates, welcome!  This update aims to share recent changes as well as our best current knowledge on upcoming changes, but predicting the future is tricky business and this shouldn’t be considered a committed roadmap. 

InterSystems IRIS Production Operating Systems and CPU Architectures

Minimum Supported CPU Architecture

In 2024, InterSystems introduced a minimum supported CPU architecture for all Intel- & AMD-based servers that allows us to take advantage of new CPU instructions to create faster versions of IRIS.  IRIS 2025.3 will update that list to require the x86-64-v3 microarchitecture level, which requires the AVX, AVX2, BMI, and BMI2 instructions.

• For users with Intel-based systems, this means that Haswell and up will be required.
• For users with AMD-based systems, this means that Excavator and up will be required while Piledriver & Steamroller will not be supported.

Are you wondering if your CPU will still be supported?  We published a handy article on how to look up your CPU’s microarchitecture in 2023.

Red Hat Enterprise Linux

• Upcoming Changes
  • RHEL 10 - Red Hat released RHEL 10 on May 20^th.  We released a version of IRIS 2025.1.0 that supports RHEL 10 on June 20^th.
    • IRIS 2025.2 and up will support RHEL 9 & 10, which means that we stopped supporting RHEL 8.
• Further reading: RHEL Release Page

Ubuntu

• Current Update
  • Ubuntu 24.04.2 has just been released and minor OS certification has completed successfully.
• Further Reading: Ubuntu Releases Page

SUSE Linux

• Upcoming Changes
  • IRIS 2025.3+ will require SUSE Linux Enterprise Server 15 SP6 or greater – SLES 15 sp6 has given us the option to use OpenSSL 3 and, to provide you with the most secure platform possible, we’re going to change IRIS to start taking advantage of it.
  • In preparation for moving to OpenSSL 3 in IRIS 2025.3, there was no IRIS 2025.2 for SUSE.

Further Reading: SUSE lifecycle

Oracle Linux

• Upcoming Changes
  • We’ve started testing Oracle Linux 10.  If history is to be our guide, it should work just fine with any version of IRIS that supports RHEL 10.
• Further Reading: Oracle Linux Support Policy

Microsoft Windows

• Previous Updates
  • Windows Server 2025 is now supported in IRIS 2025.1 and up.
• Upcoming Changes
  • IRIS 2025.3+ will no longer support Windows Server 2016 & 2019.
  • Microsoft has pushed back the anticipated release date for Windows 12 yet again.  At this point, it’s best to stop speculating on when it’ll arrive.  Whenever it does arrive, we’ll start the process of supporting the new OS then.
• Further Reading: Microsoft Lifecycle

AIX

• Upcoming Changes
  • IBM released new Power 11 hardware in July.  We anticipate running the new hardware through the paces over the course of the late summer and early fall.  Look for a full update on our findings in the Q4’25 or Q1’26 newsletter.
• Further Reading: AIX Lifecycle

Containers

• Previous Updates
  • We changed the container base image from Ubuntu 22.04 to Ubuntu 24.04 with IRIS 2024.2
  • We’re considering changes to the default IRIS container to, by default, have internal traffic (ECP, Mirroring, etc) on a different port from potentially externally facing traffic (ODBC, JDBC, etc).  If you have needs in this area, please reach out and let me know.

InterSystems IRIS Development Operating Systems and CPU Architectures

MacOS

• Recent Changes
  • IRIS 2025.1 adds support for MacOS 15 on both ARM- and Intel-based systems.

InterSystems Components

• Upcoming Releases
  • InterSystems API Manager 3.10 has been released.  Users of earlier versions of the API manager will need an updated IRIS license key to use version 3.10.
  • InterSystems Kubernetes Operator 3.8 has been released.

Caché & Ensemble Production Operating Systems and CPU Architectures

• Previous Updates
  • A reminder that the final Caché & Ensemble maintenance releases are scheduled for Q1-2027, which is coming up sooner than you think.  See  Jeff’s excellent community article for more info.

InterSystems Supported Platforms Documentation

The InterSystems Supported Platforms documentation is the definitive source information on supported technologies.

• IRIS 2025.1 Supported Server Platforms
• IRIS 2024.1 Supported Server Platforms
• IRIS 2023.1 Supported Server Platforms
• Caché & Ensemble 2018.1 Supported Server Platforms

… and that’s all folks.  Again, if there’s something more that you’d like to know about, please let us know.