  Using Chiral Perturbation Theory to properly account for the dynamics of
nonleptonic $K\to 2\,\pi$ decays, we found the Standard Model prediction for
the CP violating ratio
$\mbox{Re}\left(\varepsilon'/\varepsilon\right)=\left(14\pm 5\right) \times
10^{-4}$, where isospin breaking effects are included, in perfect agreement
with the current experimental world average. Similar results have been reported
by a recent release of improved lattice data.
