  The HotQCD Collaboration performed Taylor expansion calculations in 2017 for
the pressure, energy density, and entropy density at non-zero chemical
potentials up to the $6^{th}$ order. Since then, they have significantly
improved the statistics for lattices with temporal extents of $N_\tau=8$ and
$12$, and have also included results for $N_\tau=16$ that were not previously
available. They have also calculated the $8^{th}$-order expansion coefficients
for $N_\tau=8$. These calculations showed that the Taylor series expansion for
the pressure is accurate up to $\mu_B / T \leq 2.5$. In this study, we use the
high-statistics results on Taylor expansion coefficients, calculated with HISQ
fermions and extrapolated to the continuum limit, to determine the QCD equation
of state under conditions relevant for hot and dense matter produced in heavy
ion collisions. We also calculate the energy density and pressure along lines
of constant entropy per net baryon number.
