Comment by kunstmord

Have been writing all my numerical code in Julia for the last 1.5 years, haven’t run into any issues at all. Actively use things like Trixi.jl (CFD framework), Jump/IPOPT/PRIMA for numerical optimisation, OrdinaryDifferentialEquations for ODE solutions; a few colleagues actively use Gridap.jl for their work. Not sure how large-scale these libraries can be considered, but they all seem to work fine, fast, and stable (potential issues with LoopVectorization.jl in upcoming versions of Julia are somewhat concerning, but IIRC, for 1.11 this has been resolved)