MAK has been rolling out support for IEEE-1516-2025 (HLA 4) throughout the summer and fall with new product releases. First the MAK RTI 5.0 was released introducing support for HLA 4 in June. This fall we have added HLA 4 support to each new MAK ONE 2025 product released.

HLA 4 is a significant evolution of the HLA standard, and we expect broad adoption across our customer base over the next few years. As always, no system is perfect and HLA 4 is new; even with extensive automated testing, some issues can slip through. As part of our commitment to delivering high-quality products and support, we are issuing this maintenance release to keep everyone running smoothly and to continue polishing our HLA 4 implementation.

In addition to bug fixes, this release includes several notable improvements:

• We added a Python interface to the federate protocol, available for free on GitHub for use in your own applications. Expect this capability to continue to expand in future months. 
• Official IEEE API files for HLA 4. Although 5.0.1 was finalized slightly before the HLA 4 specification was published, this version now uses the official API files.
• Advanced Wireshark dissector files for MAK RTI message inspection, enabling more powerful debugging and troubleshooting.

Questions or comments? Connect with the MAK team anytime at This email address is being protected from spambots. You need JavaScript enabled to view it., or explore MAK Customer Support through our Support Portal and Self-Help Resources.

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