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Releases: xaos-project/XaoS
Release list
4.3.8
This release is Windows-only. It offers both the classic (legacy) user interface and a new experimental version of XaoS.
The new interface provides community features such as sharing fractals and downloading fractals shared by others. Currently, the community server is temporarily hosted in Austria, with support from the Research Institute for Symbolic Computations. This may change in the future. Feel free to share your own created fractals with the community!
The mobile interface is contributed by Avinash Sharma as part of the Google Summer of Code 2026 project. His final report can be found here, including two short videos, filmed on Android and iOS.
The new interface is considered stable, but some features of the classic interface are not yet available. We will continue working on both versions to bring more functionality to each of them.
Downloads
30 Years of XaoS
To celebrate 30 years of successful work on XaoS, we invite you to a meeting in Czechia on the 19th of September, 2026. You are welcome to join us!
4.3.7
This version fixes the Fractal > View menu option, the 4.0 chapter in the tutorial, and some issues that caused random crashes (mainly when exiting the program). The Help > About menu option now has a distincitve icon.
An experimental new interface is available in both Windows packages (XaoSMobile.exe). We plan to introduce this user interface for tablets and smartphones soon. This experimental version is based on Qt's QML and Qt Quick technologies. (Because of the new interface, several new DLLs had to be added to the packages, resulting in a slight increase in their size.)
We welcome your feedback on this new interface! There are still bugs, unimplemented features and disabled buttons in this new version, but feel free to try it out and let us know about your experience. The mobile interface is contributed by Avinash Sharma as part of the Google Summer of Code 2026 project and is still under active development. If you do not have the opportunity to try it yourself, have a look at the mobile or desktop build.
Downloads
- Windows 64 bit installer and zip
- Mac 64-bit dmg, tested on Sonoma 14.7.8
- Linux binaries:
- Ubuntu 26.04 64-bit
- Online version at xaos.app
Native platforms are built with Qt version 6.10, except the online version which was built with Qt 6.7.
Alternatively, Linux users can install the Flathub bundle.
30 Years of XaoS
To celebrate 30 years of successful work on XaoS, we invite you to a meeting in Czechia on the 19th of September, 2026. You are welcome to join us!
4.3.6
This version adds Hebrew support and fixes the Windows version. Also, the Windows installer looks a bit nicer than formerly.
Certain menu options are illutrated with icons on all platforms now.
Downloads
- Windows 64 bit installer and zip
- Mac 64-bit dmg, tested on Sonoma 14.7.8
- Linux binaries:
- Ubuntu 24.04 64-bit
- Online version at xaos.app
Native platforms are built with Qt version 6.10 (except Ubuntu 24.04 which uses Qt 6.4), except the online version which was built with Qt 6.7.
Alternatively, Linux users can install the Flathub bundle.
30 Years of XaoS
To celebrate 30 years of successful work on XaoS, we invite you to a meeting in Czechia on the 19th of September, 2026. You are welcome to join us!
4.3.5
This version adds Armenian and Chinese support. For developers, major improvements were performed towards full CMake compliance and reproducible builds via Docker.
Downloads
- Windows 64 bit installer and zip - now our installer uses Inno Setup, updated on 2026-06-20 to fix missing folders
catalogs,tutorial,examples, and disable console window - Mac 64-bit dmg, tested on Sonoma 14.7.8
- Linux binaries:
- Ubuntu 24.04 64-bit
- Online version at xaos.app
Native platforms are built with Qt version 6.10 (except Ubuntu 24.04 which uses Qt 6.4), except the online version which was built with Qt 6.9.
Alternatively, Linux users can install the Flathub bundle.
30 Years of XaoS
To celebrate 30 years of successful work on XaoS, we invite you to a meeting in Czechia on the 19th of September, 2026. You are welcome to join us!
4.3.5 Beta 1
This release fixes XaoS on macOS 26 Tahoe.
4.3.4
This version introduces a new fractal type (Sierpinski Carpet 4) and adds menu icons (when compiled with Qt >= 6.7). Some bugs have been fixed.
Downloads
- Windows 64 bit installer and zip
- Mac 64-bit dmg, tested on Sonoma 14.4
- Linux binaries:
- Ubuntu 24.04 64-bit
- Online version at xaos.app
All platforms are built with Qt version 6.9 (except Ubuntu 24.04 which uses Qt 6.4).
Alternatively, Linux users can soon install the Flathub bundle which will be built with Qt 6.9.
4.3.3
Downloads
- Windows 64 bit installer and zip
- Mac 64-bit dmg, tested on Sonoma 14.4
- Linux binaries:
- Ubuntu 24.04 64-bit
- Online version at xaos.app
All platforms are built with Qt version 6.8.
Alternatively, Linux users can install the Flathub bundle which is built with Qt 6.7.
New Features
- New fractal type (clock) by prrt714.
- New outcoloring mode smoothlog by iaoesch.
- Official debut of build via cmake (for developers).
4.3.2
Downloads
- Windows 64 bit installer and zip
- Mac 64-bit dmg, tested on Big Sur 11.2.3
- Linux binaries:
- Ubuntu 22.04 64-bit
New Features
- Turkish translation, contributed by Selen Galiç, Zuhal Ünan, Veysel Yıldız and Emine Nur Ünveren Bilgiç.
- Ctrl-C copies the current position to the clipboard as an URL at xaos.app.
- Some new keyboard shortcuts: Shift-F1 for Info on current fractal and Ctrl-+ for Autopilot.
- "Mathematical" coordinates of the mouse are shown in the status.
- Contributor's list is linked in Help > About.
4.3.1
Downloads
- Windows 64 bit installer and zip
- Mac 64-bit dmg, tested on Big Sur 11.2.3
- Linux binaries:
- Ubuntu 22.04 64-bit
New Features
- Two new examples by Adam Majewski.
Bug Fixes
- Example files are loaded properly now.
The Windows binaries have been updated on 2023-10-09. Their previous versions did not include the mandatory files libgcc_s_seh-1.dll and libwinpthread-1.dll. Now this should be fixed.
4.3
Downloads
- HTML (WebAssembly)
- Windows 64 bit installer and zip
- Linux binaries:
- Ubuntu 22.04 64-bit
New Features
- Migration to Qt 6.
- WebAssembly port, that is, a full-featured web version is available. Tested with Qt >= 6.5.2.
- Progress bar for time consuming operations (only on native platforms).
Bug Fixes
- Example files are loaded properly even if XaoS is not installed (that is, the examples are not flattened).
- User formulas are not duplicated in the history.
Known Issues
- File -> Load Random Example may cause XaoS hang if you have too many files on your system. We will fix this as soon as possible.

