With the release of Intel MKL version 2024.0.0 on Nov 14 2023, certain invocations of libmkl.pardiso fail on Windows with OSError: [WinError -1066598274] Windows Error 0xc06d007e. An example of failing unit tests can be found at https://github.com/evalf/nutils/actions/runs/7247258878/job/19740839287.

It is unclear what causes these failures. Since we don't have access to a Windows platform to investigate the issue locally, we resorted to placing an upper bound on the supported MKL version (#837, #835) until a better solution presents itself. We will keep this issue open until the bound can be removed.