Improvements in Higgs-mass predictions with $\mathtt{\text{FeynHiggs}}$

Recent developments in the public code $\mathtt{\text{FeynHiggs}}$ for the prediction of the Standard Model-like Higgs mass in the Minimal Supersymmetric Standard Model are presented. Improvements in the prediction based on an effective-field theory concern the cases of multi-scale hierarchies where the gluino is much heavier than the sfermions or where the additional Higgs bosons have masses between the electroweak and supersymmetry scales. The fixed-order part is improved by a re-implementation and extension of the two-loop corrections, now containing the contributions of orders $({\alpha }_t+{\alpha }_b)\cdot ({\alpha }_t+{\alpha }_b+{\alpha }_s)$ in the limit of vanishing electroweak gauge couplings for all implemented renormalization schemes. The updated version has a significantly improved numerical stability and thus an enhanced range of applicability for scenarios with heavy supersymmetric particles. All updates will be included in the upcoming version $\mathtt{\text{FeynHiggs-2.19.0}}$.