An updated version of ARTS 2.6 is now available. It contains bug fixes, performance and QoL improvements. The parallelization of lookup table calculations has been vastly improved. The list of changes is available on the Github release page.

We recommend to install ARTS in Miniforge3 with mamba install -c rttools pyarts. Existing environments can be updated with mamba update -c rttools pyarts. Conda packages for Python 3.9 have been dropped with this version. Packages are available for Python 3.10, 3.11, 3.12 and 3.13.

We are hiring a full-time Postdoctoral Research Associate in Radiation and Climate, starting September 1, 2025, for 3 years, with possibility of extension for another 3 years. The position offers the opportunity to pursue a habilitation (qualification for professorship) while doing cutting-edge research on radiative transfer, climate physics, or satellite remote sensing. Play a key role in advancing tools like the ARTS radiative transfer simulator and participate in satellite missions such as EarthCARE, FORUM and ICI. Enjoy a dynamic academic environment with flexible work options. If you have a strong research track record in any of the above areas, apply online by May 31, 2025.