The 2024 Wannier Developers Meeting was held 12-16 February at the Paul Scherrer Institute, Switzerland.
One of the key focusses of this meeting was preparation of the Wannier90 code for its forthcoming next major release (v4.0). This release will feature a library interface to Wannier90 functionality that is capable of being invoked by an external calling program in a parallel (MPI) environment, with significant changes to the structure of the code since the last release (v3.1.0).