QCD corrections to the b→sγ decay. Appearance of double log terms

A two-loop Feynman diagram calculation for the b→sγ amplitude to the order αs is presented. We find an αs log2 contribution, a term missing in previous calculations. However, owing to a small coefficient of the double log term, the αs log terms found previously still dominate numerically. The present approach throws new light on a recent controversy concerning QCD corrections in b→sγ. (orig.)