We report on two recent calculations on the inclusive radiative
decay \(\bar B\to X_s \gamma\), notably multi-parton contributions at NLO and
the \(Q_{1,2}-Q_7\) interference at NNLO for the physical value of the charm-quark mass.
The former calculation formally completes \(\bar{B} \rightarrow X_s \gamma\) at NLO in QCD at leading power, the latter removes a long-standing \(\pm 3\%\) uncertainty arising from interpolation in \(m_c\). The updated Standard-Model prediction
for the CP- and isospin-averaged branching ratio reads
\({\mathcal B}_{s \gamma}^{\rm SM} = (3.54 \pm 0.14)\times 10^{-4}\)
for photon energies \(E_\gamma > 1.6\,{\rm GeV}\) in the \(B\)-meson rest frame.
This value is in good agreement with the current experimental average
\({\mathcal B}_{s \gamma}^{\rm exp} = (3.49 \pm 0.19)\times 10^{-4}\).