  We present selected results obtained by RQCD from simulations of $N_f=2+1$
flavours of non-perturbatively $\mathcal{O}(a)$ improved Wilson fermions,
employing open boundary conditions in time. The ensembles were created within
the CLS (Coordinated Lattice Simulations) effort at five different values of
the lattice spacing, ranging from 0.085fm down to below 0.04fm. Many quark mass
combinations were realized, in particular along lines where the sum of the bare
quark masses was kept fixed as well as trajectories of an approximately
physical renormalized strange quark mass. Several key observables, including
meson and baryon masses and the axial charge of the nucleon have been computed,
and preliminary results are presented here. In some cases an accurate and
controlled extrapolation to the continuum limit has become possible.
