  In the last few years a significant progress in the kaon physics has been
made by three experiments - KLOE, KTeV and NA48. The reflection of their
results to the extraction of the parameter Vus of the CKM matrix is presented.
The obtained combined result for Vus = 0.2241(15) together with the latest
value for Vud = 0.97377(27) are consistent with the Standard Model and the
unitarity of the CKM matrix.
