For windows, download Refl1D-0.8.15-exe.zip and extract the archive. Go to the extracted directory and click on refl1d_gui.bat. This will open a dialog saying that the application is untrusted with a "Don't run" button at the bottom. Click on "more info" and a "Run anyway" button will appear. Use pip install refl1d wxpython to install Refl1D in your python environment. 2021-11-18 v0.8.15 preliminary support for theta_offset in PolarizedNeutronProbe preserve manual zoom view on R during fits fix wx and matplotlib bug (setTitle) use numba JIT for reflectometry kernel, convolve, etc (replacing all uses of C/C++ extensions) (this results in a pure Python wheel) use magnetic_smooth_profile in "record_point", same as is done for non-magnetic profiles FunctionalLayer can now accept lists of parameters oversampling helper added (currently called refl1d.check_oversampling) much faster "Model Uncertainty" view calculation for large profiles update to bumps 0.8.1