Monthly Archives: March 2026

Driver updates now available

MultiMacWith the release of ArcaOS 5.1.2, several drivers have been updated. These updates are already included in ArcaOS 5.1.2, but if you are not updating to ArcaOS 5.1.2 you can still take advantage of some of the new driver updates. They are now available as part of the Support & Maintenance subscription for your ArcaOS product, and in the Arca Noae OS/2 & eCS Drivers and Software Subscription, Please log into your account and visit your Download & renewal center to access your software. Specifically, these updated packages are:

  • USB 12.18 (updated from 12.17)
  • NVME 1.03 (updated from 1.02)
  • ACPI 3.23.19 (updated from 3.23.18)
  • AMouse 4.02 (updated from 4.01)
  • Panorama 1.21 (updated from 1.20)

These releases include minor fixes and enhancements over their previous versions, and while recommended, they are not considered critical updates. Again, if you have updated to ArcaOS 5.1.2, you already have all of these updates. Here are the highlights of what’s new:

USB v12.18

  • USBAXGE – Enhanced to work with newer AX88179 chips.
  • USBASIX – Reliability updates.
  • USBMOS – Reliability updates.
  • USBSER – Fixed baud rate calculation for F232 chips

NVME v1.03

  • Fixed a rare trap when running multiple NVME controllers.

ACPI v3.23.19

  • Enhanced Power Manager to work better on systems with many CPUs.

AMouse v4.02

  • Added some command line switches

Panorama v1.21

  • Fixed an EDID problem when running the installer.

If you are still running OS/2 and/or eComStation systems and haven’t yet moved up to ArcaOS, this is a great reason to do so now. If you’ve already made the switch, but haven’t renewed renewed your support subscription, this is also a good time. Thinking of upgrading your current ArcaOS 5.0 installation? Now is also a good time.

If you have an Arca Noae OS/2 & eCS Drivers and Software Subscription, these driver package are available for download from the Arca Noae website as part of your Arca Noae OS/2 & eCS Drivers and Software Subscription. Please log into your account in order to access your software.

ArcaOS

ArcaOS 5.1.2 now available

Arca Noae is proud to announce the general availability of ArcaOS 5.1.2 in English, German, Spanish, and Russian.

ArcaOS 5.1.2 improves the support for installation on the latest generation of UEFI-based systems, as well as the ability to install to GPT-based disk layouts. This enables ArcaOS 5.1.2 to install on a wide array of modern hardware. As with all ArcaOS releases, ArcaOS 5.1.2 still boots, installs, and runs well on traditional BIOS-based systems, offering enhanced stability and performance for either environment.

This release is free of charge to those with active ArcaOS 5.1 Support & Maintenance subscriptions, and there is no charge for requesting additional language ISOs (though your total number of ArcaOS 5.1 installations may not exceed the number of ArcaOS 5.1 licenses you have).

ArcaOS 5.1.2 can be used for new installs or to upgrade any prior English version of ArcaOS 5. If installing from USB stick, the USB install stick may be created using any major operating system at hand (Windows, Linux, MacOS, and of course, OS/2, eComStation, and ArcaOS). Once built, the USB stick can be inserted into any USB port in the target system to boot into the ArcaOS installer/updater in either UEFI or traditional BIOS mode (alternatively, the DVD image may be burned to physical media and also booted to either UEFI or traditional BIOS systems). See the wiki for specific notes and limitations of the USB stick creation utility on Windows.

For a complete list of updates in this release, see the ArcaOS wiki. Be sure to review the README.TXT, as well, as this contains critical information to ensure that you get up and running fast, and includes tips for getting things adjusted right away.

This upgrade is available at a steep discount with your valid ArcaOS 5.0 Support & Maintenance subscription (and your remaining subscription time will be added to the included support term). To download your fresh ISO, simply visit your customer portal page and select the Download Center link on the navigation panel to the left. From there, click the “Upgrade to 5.1” button, and proceed to checkout.

If your ArcaOS 5.0 Support & Maintenance subscription has already expired, you may still upgrade at less than the cost of a new ArcaOS 5.1 license. Follow the procedure above to order your upgrade, and the discount will be reflected in your cart.

New ArcaOS 5.1.2 license purchases are initially built as English. To request a different language, simply visit your Download Center, select the Build ISO Again button, and choose your language.

Need more convincing? How about a commercial operating system which doesn’t spy on you, does not report your online activity to anyone, and gives you complete freedom to choose the applications you want to use, however you want to use them? How about an operating system which isn’t tied to any specific hardware manufacturer, allowing you to choose the platform which is right for you, and fits perfectly well in systems with less than 4GB of memory or even virtual machines?

Arca Noae is committed to continuing the development, support, maintenance, and refinement of the OS/2 platform. The next release of ArcaOS is indeed already in the works. The future continues to look bright for Arca Noae and ArcaOS!