Tag Archives: license

ArcaOS

ArcaOS named Best Alternative OS of 2025 by TechRadar!

It is always gratifying to receive acclaim from our peers and the educated press. It seems that TechRadar has listed ArcaOS as #1 in their list of Best alternative operating systems of 2025, albeit with some slight misstatements in their overview (which we have brought to their attention).

One of the points which is specifically incorrect is the negative notion that ArcaOS is “for older PCs.” ArcaOS 5.1 should install on many or most new or recent Intel or AMD-based hardware. It is capable of booting on UEFI-only systems, without the aid of a CSM, using our proprietary 64-bit UEFI loader, and then booting ArcaOS (which itself is 32-bit) just as it would on a traditional BIOS system.

ArcaOS 5.1 also supports booting from GPT partitioned media, making it a great companion OS for multiboot configurations where the disk (or SSD) has already been partitioned this way and where it may be impractical to wipe and convert to MBR-style partitioning.

In fact, it is also something to note that ArcaOS is specifically not intended for use on “older” hardware, such as ISA, EISA, or MicroChannel, as most of the device drivers for those architectures were removed from ArcaOS prior to its initial release.

Another misstatement in the article pertained to pricing which quoted figures for licensing of the 5.0 release which itself is no longer available (though support for 5.0 continues with no stated EOL). Also, if you already have an ArcaOS 5.0 license, generous upgrade discounts apply should you want to move up to ArcaOS 5.1.

Clearing up some more upgrade confusion: Subscription downloads

It’s important to remember that when an ArcaOS 5.0 license is upgraded, the existing ArcaOS 5.0 license is converted to an ArcaOS 5.1 license. This does not create a new license for another system. If the ArcaOS 5.0 license has a Support & Maintenance subscription in effect, any remaining time is added to the ArcaOS 5.1 subscription. Several actions take place automatically on Arca Noae’s side of the transaction and other actions should take place on the customer’s side.

First, on the Arca Noae side:

  1. The existing ArcaOS 5.0 Support & Maintenance subscription for that license is terminated as of the date of the upgrade of its associated license to ArcaOS 5.1.
  2. With the termination of the ArcaOS 5.0 Support & Maintenance, access to associated downloads for ArcaOS 5.0 is removed If you have more than one ArcaOS 5.0 license with current support and are only upgrading one of those licenses to 5.1, the associated downloads will still be available for your other ArcaOS 5.0 licenses.
  3. Whatever time was left on the ArcaOS 5.0 Support & Maintenance subscription is added to the included subscription for ArcaOS 5.1. So, if you recently renewed your 5.0 subscription, and it had 12 months before the next renewal, your new ArcaOS 5.1 personal license will now have 18 months of support & updates (6 months from the new ArcaOS 5.1 subscription plus the remaining 12 months from the old ArcaOS 5.0 subscription). You don’t lose anything.

On the customer side, the installation of the ArcaOS 5.0 license being upgraded should be upgraded to ArcaOS 5.1. It is a violation of our license terms to upgrade a 5.0 license to 5.1, install the 5.1 license on another system or partition, and to continue using the 5.0 installation. One license is consumed per bootable installation, regardless of the edition (personal or commercial). If that license has been upgraded, the upgraded license is only valid for the upgraded ArcaOS version. An upgrade does not create a new license for another installation.

If you would like to maintain access to ArcaOS 5.0 downloadable content, but would also like to install ArcaOS 5.1, then we invite you to purchase a new ArcaOS 5.1 license from our store or from your preferred authorized reseller. In that case, the two subscriptions will be separate, and their contents will be available in your ArcaOS Download Center as long as the respective subscription remains in force.

For more information, please refer to this FAQ item.

A Note about Third-Party Components in ArcaOS

You may be aware of the recent massive Equifax security breach and the Company’s explanation surrounding a vulnerability in Apache Struts (CVE-2017-5638) disclosed by US CERT in early March 2017. Some reports have implied that the company has somehow blamed Apache Software Foundation for the breach, specifically by not moving quickly enough to address the security flaw. Apache has responded to these allegations clearly and concisely. In light of this incident, we thought this a good opportunity to help provide some clarity concerning third-party work and open source components, in general, as they pertain to ArcaOS and Arca Noae’s position regarding their fitness for use, and who is ultimately responsible to maintain his or her or, in the case of enterprise use, its own systems.

Arca Noae includes several components in ArcaOS developed by reputable third parties, including IBM, Apple, and others. Some of these components are open source, as well, meaning that the code for compiling these components into machine-readable form is freely available to the public. Open source software is often more secure than proprietary software, by nature of the fact that many (sometimes thousands) of developers around the world contribute to the code. This (often massive) group effort allows such projects to react quickly when flaws are discovered, and to work to constantly monitor and maintain the software. However, whether proprietary or open source, Arca Noae may have no control whatsoever over these components, inherent flaws, or as-yet-undisclosed security issues.

It is Arca Noae’s position that each ArcaOS licensee (whether an individual or an enterprise) bears the sole responsibility to consider his or her or its own interests and security. While we do what is within the realm of reasonable possibility to stay abreast of current trends and vulnerability disclosures (CVEs), we cannot guarantee that all issues will be identified and/or reported to our users by us. Thus, best practices dictate that each user remain vigilant and aware of the connected ecosystem in which we live and to take steps to mitigate his or her or its own risks.

Arca Noae welcomes reports from our users of disclosed and non-disclosed vulnerabilities. While we normally encourage our users to avail themselves of our Mantis ticketing system to report issues, those of a sensitive nature (such as an as-yet-undisclosed or little-known security flaw in a bundled component) should be reported through our contact page.

We would also like to take this opportunity to remind all of our ArcaOS licensees that ArcaOS does not utilize telemetry of any kind to communicate with us. We firmly believe that when a user licenses a copy of ArcaOS, his or her or its data should remain on the system as directed by the user, shared only by the user, and with the user’s full knowledge and consent.

The next exciting update to ArcaOS 5.0 is in the making, too. Watch the Arca Noae blog for a release announcement in the coming weeks.

ArcaOS 5.0 DVD

Last days of introductory pricing for ArcaOS 5.0 personal edition

The 90-day introductory period for ArcaOS 5.0 is drawing to a close, and with it, the sale price for ArcaOS 5.0 personal edition. There is still time – through August 15 – to get your license(s) for ArcaOS 5.0 personal edition at a $30 discount. That’s a savings of more than 23%.

ArcaOS 5.0 has been extremely well received by the press, developers, engineers, and users alike. More great features are in the works, and a license for 5.0 today ensures a great discount on 5.1, anticipated late 2018.