  The recent updated angular analysis of the $B\to K^*\mu^+\mu^-$ decay by the
LHCb collaboration is interpreted by performing a global fit to all relevant
measurements probing the flavour-changing neutral current $b\to s\mu^+\mu^-$
transition. A significant tension with Standard Model expectations is found. A
solution with new physics modifying the Wilson coefficient $C_9$ is preferred
over the Standard Model by $3.7\sigma$. The tension even increases to
$4.2\sigma$ including also $b\to se^+e^-$ measurements and assuming new physics
to affect the muonic modes only. Other new physics benchmarks are discussed as
well. The $q^2$ dependence of the shift in $C_9$ is suggested as a means to
identify the origin of the tension - new physics or an unexpectedly large
hadronic effect.
