  We present an updated analysis of the Yukawa matrix unification within the
renormalizable Minimal Supersymmetric Standard Model. It is assumed that the
soft terms are non-universal but flavour-diagonal in the super-CKM basis at the
GUT scale. Trilinear Higgs-squark-squark A-terms can generate large threshold
corrections to the Yukawa matrix $\mathbf{Y}^d$ at the superpartner decoupling
scale. In effect, the SU(5) boundary condition $\mathbf{Y}^d=\mathbf{Y}^{e\,T}$
at the GUT scale can be satisfied. However, such large trilinear terms make the
usual Higgs vacuum metastable (though long-lived). We broaden previous studies
by including results from the first LHC phase, notably the measurement of the
Higgs particle mass, as well as a quantitative investigation of flavour
observables.
