\AddVariable{fmtversion}{\fmtversion}
%%% Crucial versions
+% This one introduces \textsubscript
+\TestLaTeXVersion{2005/12/01}
% This one introduces path encoding changes
\TestLaTeXVersion{2019/10/01}
% This introduces all math and text spaces
% With this version, hyperref option unicode is true
% by default
\TestPackageVersion{hyperref}{2021/02/04}
+% As of this version, the ucs package must be explicitly
+% loaded to get utf8x (rather than utf8) encoding tables
+\TestPackageVersion{ucs}{2022/08/07}
%%% Document classes
% The list of layout files has been put in this file here by the