VMS Help LICENSE, LIST, Qualifiers, /RELEASE_DATE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /RELEASE_DATE=date

    Used with /BEFORE or /SINCE, specifies a listing from the License
    Database that includes only licenses with a release date on
    or after the date specified. The date must be presented in the
    standard OpenVMS format: dd-mmm-yyyy. The default value is /SINCE
    /RELEASE_DATE=TODAY.