What we know
This effort reportedly brings Thunderbolt 4 support to a platform that originally lacked it. The drivers were specifically designed to work with these modern interfaces on the legacy OS.
Why it matters
Thunderbolt 4 is a cutting-edge, high-speed hardware interface typically supported only on recent operating systems. Windows 98 SE is a much older system that normally cannot run drivers for such modern hardware. Enabling Thunderbolt 4 and USB4 support on this legacy OS could extend the usability of vintage computers with contemporary peripherals.
What is still unknown
No independent verification of full Thunderbolt 4 functionality on Windows 98 SE has been reported. Details about driver accuracy, supported languages, and plans for wider distribution remain unclear. There is no information on release timing or official support.
