  We discuss the impact of the recent LHCb update on the two lepton-flavour
universality ratios $R_K$ and $R_{K^*}$, and the CMS update of $B({B_s \to
\mu^+\mu^-})$ regarding the possibility of New Physics in $b\to s\ell^+\ell^-$
decays. We perform global fits of the New Physics Wilson coefficients defined
in the model-independent approach of the Weak Effective Theory at the $b$-quark
mass. We discuss three different frameworks for this analysis: i) an update
limited to the experimental data using the same theoretical framework as in
earlier works, ii) a full update concerning both the experimental inputs and
the theoretical framework, iii) an analysis without the LHCb results on
electron modes. The comparison between these sets of results allows us to
identify the differences stemming from the various components of the analysis:
new experimental results, new inputs for the hadronic form factors, the role
played by LHCb data on electron modes. As expected, the significance of all New
Physics hypotheses gets reduced after the LHCb announcements on
$R_{K^{(\ast)}}$ while the hypothesis of a lepton-flavour-universal
contribution to the Wilson coefficient of the semileptonic $O_{9\ell}$
operators (possibly with a very small lepton-flavour-universality violating
component) is reinforced. We also discuss the possibility of a long-distance
charm-loop contribution through a mode-by-mode analysis and we find that the
preferred values for the $\mathcal{C}_{9\mu}$ Wilson coefficient are consistent
throughout the different $b\to s\mu^+\mu^-$ modes and that there is no
significant evidence of non-constant $q^2$ dependencies, which would indicate
the presence of a long-distance charm-loop contribution beyond those already
included.
