https://gitlab.com/QEF/q-e/-/releases

Quantum ESPRESSO 7.4

Incompatible changes in 7.4 version:

• Parameter lambda for fixed_magnetization = ‘atomic’ and ‘atomic direction’ modified and made uniform with all other constraints – courtesy Tae Yun Kim

New in 7.4 version:

• Linear response phonon calculations with a two-chemical potential approach by G. Marini, M. Calandra [Phys. Rev. B 104, 144103(2021)].
• Enabling detection of symmetries by comparison of species labels for example Hf1 is equivalent with Hf2 , O1 is equivalent to O2 etc
  (available with control variable symmetries_with_labels) by: M. Park, R. Masuki
• Enabling detection and optional usage of spin flip symmetries, for now excluding the
  spin translation case ( Identity + fractional translation + spin_flip) by: R. Masuki

Fixed in 7.4 version:

• Stress for USPP and conjugate-gradient algorithm of cp.x was wrong. Bug found and fixed by Jeremy Rabone
• Phonon restart was not working properly in some cases with ultrasoft, PPs, due to bad initialization of PP tables – affects v.7.3 and 7.3.1
• Too small parameter “maxl” in upflib/ylmr2.f90 and upflib/ylmr2_gpu.f90 for some PAW calculations – affects v.7.3.1 only
• Since v.7.2 phonon was not working for completely local pseudopotentials such as the VBC pseudopotentials for H.