1 files changed, 24 insertions, 6 deletions
diff --git a/Master/texmf-dist/source/latex/caption/ltcaption.dtx b/Master/texmf-dist/source/latex/caption/ltcaption.dtx
index fab8a4c05ea..1b6c813a53f 100644
--- a/Master/texmf-dist/source/latex/caption/ltcaption.dtx
+++ b/Master/texmf-dist/source/latex/caption/ltcaption.dtx
@@ -27,12 +27,11 @@
 %   caption.sty, caption-light.sty, caption2.sty, caption3.sty,
 %   caption-ams-smf.sto, caption-beamer.sto, caption-elsarticle.sto,
 %   caption-koma.sto, caption-memoir.sto, caption-ntg.sto,
-%   caption-thesis.sto, bicaption.sty, ltcaption.sty, subcaption.sty,
-% and the user manuals
-%   caption-deu.tex, caption-eng.tex, caption-rus.tex.
+%   caption-thesis.sto, bicaption.sty, ltcaption.sty, subcaption.sty.
 % 
 % \fi
-% \CheckSum{381}
+%
+% \CheckSum{388}
 %
 % \iffalse
 %<*driver>
@@ -424,6 +423,7 @@
 % \DoNotIndex{\hangindent,\hbox,\hfil,\hsize,\hskip,\hspace,\hss}
 % \DoNotIndex{\ifcase,\ifdim,\ifnum,\ifodd,\ifvoid,\ifvmode}
 % \DoNotIndex{\ifx,\ignorespaces,\itshape}
+% \DoNotIndex{\kernel@ifnextchar}
 % \DoNotIndex{\Large,\large,\leavevmode,\leftmargini,\leftskip,\let,\linewidth}
 % \DoNotIndex{\llap,\long,\m@ne,\margin,\mdseries,\message}
 % \DoNotIndex{\newcommand,\newdimen,\newlength,\newline,\newif,\newsavebox}
@@ -464,9 +464,26 @@
 %
 % \subsection{Identification}
 %
+% We need at least \LaTeX2e\ version 1994/12/01.
 %    \begin{macrocode}
 \NeedsTeXFormat{LaTeX2e}[1994/12/01]
-\ProvidesPackage{ltcaption}[2020/05/30 v1.4b longtable captions (AR)]
+%    \end{macrocode}
+%
+% Bypass the release declarations in case the \LaTeX\ kernel doesn’t know how to deal with them
+% (as suggested by \url{https://www.latex-project.org/publications/2018-FMi-TUB-tb122mitt-version-rollback.pdf}).
+%    \begin{macrocode}
+\providecommand\DeclareRelease[3]{}
+\providecommand\DeclareCurrentRelease[2]{}
+%    \end{macrocode}
+%
+% Declare all supported releases.
+%    \begin{macrocode}
+\DeclareCurrentRelease{v1}{2007-04-15}
+%    \end{macrocode}
+%
+% Identify the current version of the package.
+%    \begin{macrocode}
+\ProvidesPackage{ltcaption}[2021/01/08 v1.4c longtable captions (AR)]
 %    \end{macrocode}
 %
 %    \begin{macrocode}
@@ -808,6 +825,7 @@
 %
 % \begin{environment}{longtable*}
 % \changes{v1.1a}{2008/03/21}{Improved redefinition of \cs{refstepcounter} etc.}
+% \changes{v1.4c}{2021/01/08}{Improved error message if \cs{caption} is used}
 % A |longtable| environment without reference counter and hyperlink anchors.
 %    \begin{macrocode}
 \newenvironment{longtable*}{%
@@ -831,7 +849,7 @@
    \def\LT@c@ption##1[##2]##3{%
      \ifx##1\@firstofone
        \PackageError{ltcaption}%
-         {Not allowed in longtable* environment}%
+         {\noexpand\caption is not available in longtable* environment}%
          {If you do not understand this error, please take a closer
           look\MessageBreak at the documentation of the `ltcaption'
           package.\MessageBreak \@ehc}%