SimThyr 4.0.3 published

SimThyr 4.0.3, a bug fix release, has been made available. In addition to addressing some stability issues this is the first version to be notarized by Apple, thereby facilitating easy installation on newer versions of macOS.
Version 4.0.3 can be downloaded from http://simthyr.sf.net or https://doi.org/10.5281/zenodo.1303822 .