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We report about the current status of our ongoing study of the chiral limitof two-flavor QCD at finite temperature with twisted mass quarks. We estimatethe pseudo-critical temperature $T_c$ for three values of the pion mass in therange of $m_\mathrm{PS} \simeq 300$ and $500 \mathrm{MeV}$ and discussdifferent chiral scenarios.  Furthermore, we present first preliminary results for the trace anomaly,pressure and energy density. We have studied several discretizations ofEuclidean time up to $N_\tau=12$ in order to assess the continuum limit of thetrace anomaly. From its interpolation we evaluate the pressure and energydensity employing the integral method. Here, we have focussed on two pionmasses with $m_\mathrm{PS} \simeq 400$ and $700 \mathrm{MeV}$.

Pseudo-Critical Temperature and Thermal Equation of State from $N_f=2$ Twisted Mass Lattice QCD