Krzysztof “deadwood” Śmiechowicz has released AROS 64-bit Update U2, a follow-up that refines and stabilizes his 64-bit Amiga Research Operating System build. The new version merges improvements from the earlier U1 release, adds updated system libraries, and expands the software development kit for those building applications on this platform.
AROS 64-bit Update U2 represents an ongoing effort to create a modern, portable re-implementation of the classic AmigaOS environment. Deadwood’s 64-bit work makes AROS compatible with contemporary CPUs while keeping the spirit of the Amiga intact.
System updates and improvements
This second update introduces newer versions of several core components, offering better performance and reliability. Libraries, drivers, and tools have been synchronized with upstream improvements from the AROS ABIv11 branch. Developers will notice smoother compilation experiences and improved linking consistency with the latest SDK.
The system now integrates a number of patches focused on memory management, file system stability, and network behavior. Many of these changes address subtle issues found by users since the initial release, showing that feedback from the AROS community continues to influence development directly.
SDK refresh for developers
The updated SDK bundled with AROS 64-bit Update U2 makes development far more convenient. The environment now ships with new headers, updated gcc toolchains, and improved scripts for cross-compilation. Developers targeting AROS x86-64 can expect more predictable builds and better compatibility with legacy AROS sources.
This refresh simplifies life for anyone maintaining open-source ports or experimenting with AROS-native software. It also smooths the path for those exploring 64-bit Amiga-style programming, offering an approachable entry point for contributors who want to see AROS evolve.
Community and open-source support
Deadwood continues to maintain AROS as an open project under the GitHub organization AROS-Project. Each release follows transparent development logs and public testing builds hosted through AXRT.org. This approach ensures that developers, testers, and curious users can participate directly in shaping future versions.
Community reports and feedback from Discord, forums, and issue trackers are reflected in changelogs that read less like marketing blurbs and more like genuine progress notes. It’s open-source development done in the best Amiga tradition—collaborative, curious, and rooted in experimentation.
Looking ahead
The long-term vision for AROS 64-bit Update U2 extends beyond a single release. It establishes a stable foundation for future drivers and desktop improvements while keeping ABI compatibility intact. As more 64-bit-ready applications appear, this version ensures they can run without friction.
The release also signals AROS’s continuing relevance as a living Amiga-derived platform. Decades after the original OS defined multitasking computing for home users, developers like Deadwood are still expanding its possibilities, one update at a time.
For anyone interested in testing or contributing, the full release notes and download links are available on AXRT.org. Installation instructions and SDK details are documented there, making it easy to get started.
