Quantum ESPRESSO v. 6.7

New in 6.7 version:

• Support for CMake (F. Ficarelli and D. Cesarini, CINECA, with help from
  Ye Luo, P. Delugas, S. Gsaenger)
• In vc-relax with Hubbard corrections, the final SCF calculation is done by
  reading atomic occupations from file produced during the vc-relax
  (rather then recomputing them from scratch).
• EPW:
  (1) ZG package to generate special displacements for first-principles non-perturbative calculations
  at finite temperatures [Marios Zacharias and Feliciano Giustino, Phys. Rev. Research 2, 013357, (2020)].
  (2) Plotting of Fermi surface.
  For the full list of new features, bug fixes, and changes leading to backward incompatibility issues,
  please visit the Releases page of the EPW documentation site [https://docs.epw-code.org/doc/Releases.html].

Fixed in 6.7 version:

• Some linkers yield "missing references to ddot_" in libbeef
• FFT test in FFTXlib was not always compiling
• angle1, angle2, starting_magnetization incorrectly written to xml file
• Bug in Hubbard forces and stress for bands parallelization (when nproc_pool>nbnd)
• Bug in DFT+U+V when starting_ns_eigenvalue is used (courtesy of M. Cococcioni)
• Crash in the calculation of Z* with ultrasoft PP when the number of bands
  is larger than the number of occupied bands (thanks to Sasha Fonari)
• Crash in matdyn.x when ibrav=0 (thanks to Sasha Fonari)
• Some postprocessing cases not working properly with k-point parallelization
• Ensemble dynamics in CP was broken in v.6.6 (not in previous versions)

Incompatible changes in 6.7 version:

• FoX no longer used to read and write pseudopotential files
• iotk no longer used to read and write any file
• Developer manual moved to the Wiki