Description of document versions
====================================


.. csv-table::

    "**Version** **Aster**", "**Author (s)**
    **Organization (s)**", "**Description of changes**"
    "6.4", "J.EL- GHARIB, G. DEBRUYNE
    EDF -R&D/ AMA ", "Initial text"
    "7.3", "J.El-Gharib, EDF -R&D/ AMA ", "Tangent operator for the critical point"
    "9.4", "J.El-Gharib, EDF -R&D/ AMA ", "Tangent operator modification, addition of internal variables, cf. sheets REX 10585 and 10700"