% \begin{description}\item[1.4.3-b2, 2026 June 20]\relax Added a missed case to the definition of
%   |{itemize}| within |{mcq}|.\par \item[1.4.3-b1, 2026 June 5]\relax   \P\thinspace Added the |{questiongroup}| environment.  \P\thinspace Bugfix: |{itemize}| environment was broken inside
%       |{mcq}|; fixed.\par\item[1.4.2+1, 2025 September 10]\relax Updating constants: now matches CODATA 2022.
%   Adjusted confusing display of some uncertainties.\par \item[1.4.2, 2025 March 4]\relax Fix formatting of the question number.
% Before, if a question started with a `{questiondata}`, then the
% question number appeared in italic.  Fixed with an explicit
% |\normalfont|.  Thanks to John Veitch for the report.\par \item[1.4.2-b1, 2024 December 14]\relax   \P\thinspace Adjustments to the distribution, clarifying documentation.\par\item[1.4.1, 2023 November 22]\relax   \P\thinspace There is now a VERSION stamp file in the move-to-texmf directory.  \P\thinspace Documentation and logging clarifications.\par\item[1.4.1-b1, 2023 October 9]\relax   \P\thinspace Uprightpi works again, in STIX2 fonts.  \P\thinspace Some documentation clarifications (only one partmarks per part).\par\item[1.4.0, 2022 October 10]\relax   \P\thinspace The [siunitx] option is now on by default, and the
%       |\units| macro produces a one-time-per-document
%       warning that it will be removed in the next version.  \P\thinspace Having two |\partmarks| commands in an
%       environment is now detected as an error (it was documented as an
%       error, but not checked, so the extra |\partmarks|
%       commands were simply ignored).\par\item[1.4.0-b1, 2022 August 7]\relax   \P\thinspace The class file now depends on a version of LaTeX which is at least
%       the 2020/10/01 release.  This is so that we can use the current LaTeX
%       hooks mechanism.  \P\thinspace Rework |\partmarks|: the |\partmarks|
%       indicator can now go \emph{inside} most environments, including
%       list, quotes, unnumbered equations, and the various amsmath displays.  In these
%       cases, the indicator will automatically appear at the end of the
%       environment.  The starred variant of the command still exists, but
%       should rarely be necessary.\par\item[1.3.6, 2022 October 21]\relax v1.3.6 now actually \emph{is} usable with LaTeX earlier
%       than 2020.\par This compatibility is of course the point of the retained
%       1.3.x branch, but it appears that I tested this inadequately,
%       and left a spurious format-version test enabled.\par \end{description}