"Art is never finished, only abandoned.” – Leonardo da Vinci

<aside> <img src="/icons/alien-pixel_green.svg" alt="/icons/alien-pixel_green.svg" width="40px" />

How can I download Kalix?

Popular versions of Kalix are available on this page, along with release notes and documentation snapshots.
The Kalix desktop binaries are also available directly from github for Windows, Linux and MacOS. The release page is here.
The Kalix python package is now on pypi and can be installed directly via pip install kalix. </aside>

Kalix version 0.2.9

Release date: 2026-06-09.

Sneaky release with optimisation exposed to Python API
Also includes
- Some file tree enhancements
- Changes to node outputs for https://github.com/chasegan/Kalix/issues/258
- Changes inflow recession_factor → expected_inflow as in https://github.com/chasegan/Kalix/issues/260

Resource	Notes	Windows
Kalix CLI binary
KalixIDE portable application	Standalone application with dependencies
Kalix python package	https://pypi.org/project/kalix/	`pip install kalix`
User Guide	HTML	not captured this version

Kalix version 0.2.8

Release date: 2026-06-04.

(List below includes changes since 0.2.6)

File tree (NEW!!!)
- Compare files
- Compare files to active editor
- Move, copy, delete, right in the file tree
- Copy file paths (absolute, relative, trailhead relative to your model file)
Have multiple models (or files) open at once and switch between them seamlessly.
Icon set migrated to FA6
Kalix tutorials published at Modelling Tutorials

Resource	Notes	Windows
Kalix CLI binary
KalixIDE portable application	Standalone application with dependencies	‣
Kalix python package	https://pypi.org/project/kalix/	`pip install kalix`
User Guide	HTML	‣

Kalix version 0.2.6

Release date: 2026-06-02.

Routing node now supports “Nonlinear Muskingum” (nlm) model.