New Flarestack release, repackaging cosmology-related functionality under the new flarestack.cosmo banner. This provides easy access to various measurements of the diffuse neutrino flux. The previously-released functions for calculating the cumulative neutrino flux from populations is moved here, and new functionality for accessing the rates of various transients are introduced via the *get_rates* function. Flarestack now includes estimates of the rates of TDEs, GRBs, FRBs, CCSNe and FBOTs.