  The Ising critical exponents $\eta$, $\nu$ and $\omega$ are determined up to
one-per-thousand relative error in the whole range of dimensions $3 \le d < 4$,
using numerical conformal-bootstrap techniques. A detailed comparison is made
with results by the resummed epsilon-expansion in varying dimension, the
analytic bootstrap, Monte Carlo and non-perturbative renormalization-group
methods, finding very good overall agreement. Precise conformal field theory
data of scaling dimensions and structure constants are obtained as functions of
dimension, improving on earlier findings, and providing benchmarks in $3 \le d
< 4$.
