Determination of $\alpha_s$ at LEP2

The most recent results on the determination of αsαs from hadronic final states in e+e−e+e− annihi­lation at LEP 11 are reviewed. Based on the preliminary results from the four LEP experiments, αsαs(189 GeV) is determined to be 0.1096 ± 0.0036. From the measurements at LEP I and LEP II energies, the running of αsαs, is well established to be consistent with QCD prediction.