texlive[56286] Master/texmf-dist: l3kernel (7sep20)

commits+karl at tug.org commits+karl at tug.org
Mon Sep 7 23:21:46 CEST 2020


Revision: 56286
          http://tug.org/svn/texlive?view=revision&revision=56286
Author:   karl
Date:     2020-09-07 23:21:46 +0200 (Mon, 07 Sep 2020)
Log Message:
-----------
l3kernel (7sep20)

Modified Paths:
--------------
    trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
    trunk/Master/texmf-dist/doc/latex/l3kernel/README.md
    trunk/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news01.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news02.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news03.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news04.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news05.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news06.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news07.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news08.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news09.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news10.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news11.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news12.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex
    trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3cctab.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md	2020-09-07 21:21:46 UTC (rev 56286)
@@ -7,10 +7,13 @@
 
 ## [Unreleased]
 
+## [2020-09-06]
+
+### Fixed
+- Loading in generic mode (issue #800)
+
 ## [2020-09-03]
 
-## [2020-01-03]
-
 ### Fixed
 - Save primitive definition of `\pdfoutput` with CSLaTeX
 
@@ -762,9 +765,9 @@
 - Step func­tions have been added for dim vari­ables,
   e.g. `\dim_step_in­line:nnnn`
 
-[Unreleased]: https://github.com/latex3/latex3/compare/2020-09-03...HEAD
-[2020-09-03]: https://github.com/latex3/latex3/compare/2020-01-03...2020-09-03
-[2020-01-03]: https://github.com/latex3/latex3/compare/2020-09-01...2020-01-03
+[Unreleased]: https://github.com/latex3/latex3/compare/2020-09-06...HEAD
+[2020-09-06]: https://github.com/latex3/latex3/compare/2020-09-03...2020-09-06
+[2020-09-03]: https://github.com/latex3/latex3/compare/2020-09-01...2020-09-03
 [2020-09-01]: https://github.com/latex3/latex3/compare/2020-08-07...2020-09-01
 [2020-08-07]: https://github.com/latex3/latex3/compare/2020-07-17...2020-08-07
 [2020-07-17]: https://github.com/latex3/latex3/compare/2020-06-18...2020-07-17

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/README.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/README.md	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/README.md	2020-09-07 21:21:46 UTC (rev 56286)
@@ -1,7 +1,7 @@
 LaTeX3 Programming Conventions
 ==============================
 
-Release 2020-09-03
+Release 2020-09-06
 
 Overview
 --------

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -54,7 +54,7 @@
          {latex-team at latex-project.org}%
    }%
 }
-\date{Released 2020-09-03}
+\date{Released 2020-09-06}
 
 \pagenumbering{roman}
 \maketitle

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -32,7 +32,7 @@
         {latex-team at latex-project.org}%
     }%
 }
-\date{Released 2020-09-03}
+\date{Released 2020-09-06}
 
 \begin{document}
 

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
===================================================================
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -32,7 +32,7 @@
         {latex-team at latex-project.org}%
     }%
 }
-\date{Released 2020-09-03}
+\date{Released 2020-09-06}
 
 \newcommand{\TF}{\textit{(TF)}}
 

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
===================================================================
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -32,7 +32,7 @@
         {latex-team at latex-project.org}%
     }%
 }
-\date{Released 2020-09-03}
+\date{Released 2020-09-06}
 
 \newcommand{\TF}{\textit{(TF)}}
 

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
===================================================================
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -53,7 +53,7 @@
          {latex-team at latex-project.org}%
    }%
 }
-\date{Released 2020-09-03}
+\date{Released 2020-09-06}
 
 \pagenumbering{roman}
 \maketitle

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -24,7 +24,7 @@
 %
 %<*driver|generic|package|2ekernel>
 %</driver|generic|package|2ekernel>
-\def\ExplFileDate{2020-09-03}%
+\def\ExplFileDate{2020-09-06}%
 %<*driver>
 \documentclass[full]{l3doc}
 \usepackage{graphicx}
@@ -51,7 +51,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %
@@ -1065,13 +1065,23 @@
 %   It seems to be common to have stray format files in the user tree
 %   which trigger errors due to mismatched versions (\emph{e.g.}
 %   \url{https://github.com/latex3/latex3/issues/781}).
+%
+%   This block also goes to the generic loader, as \pkg{expl3} isn't
+%   preloaded there, so the kernel date should be equal to the loader
+%   date.
 %    \begin{macrocode}
-%<*2ekernel>
-\unless\ifcsname\detokenize{c__kernel_expl_date_tl}\endcsname
-  \global\expandafter\let\csname\detokenize
-    {c__kernel_expl_date_tl}\endcsname\ExplFileDate
-\fi
-%</2ekernel>
+%<*2ekernel|generic>
+\begingroup
+  \catcode`\>=12
+  \def\aux#1>{}
+  \def\auxi{c__kernel_expl_date_tl}%
+  \edef\auxi{\expandafter\aux\meaning\auxi}%
+  \expandafter
+  \ifx\csname\auxi\endcsname\relax
+    \global\expandafter\let\csname\auxi\endcsname\ExplFileDate
+  \fi
+\endgroup
+%</2ekernel|generic>
 %    \end{macrocode}
 % \end{macro}
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3cctab.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3cctab.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3cctab.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -79,7 +79,7 @@
 %
 % \title{The \cls{l3doc} class}
 % \author{\Team}
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 % \maketitle
 % \tableofcontents
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -63,7 +63,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %
@@ -3597,37 +3597,43 @@
         kpsewhich ~ --all ~
           --engine = \c_sys_engine_exec_str
           \c_space_tl \c_sys_engine_format_str
-            \tl_if_empty:NF \development at branch@name { -dev } .fmt
+            \bool_lazy_and:nnF
+                { \tl_if_exist_p:N \development at branch@name }
+                { ! \tl_if_empty_p:N \development at branch@name }
+              { -dev } .fmt
       }
     \seq_clear:N \l_@@_tmp_seq
     \ior_map_inline:Nn \g_@@_internal_ior
       { \seq_put_right:Nn \l_@@_tmp_seq {##1} }
     \ior_close:N \g_@@_internal_ior
+    \__kernel_msg_error:nnnn { kernel } { mismatched-support-file }
+      {#1} {#2}
 %    \end{macrocode}
-%   Now define a some shorthands so that we can use \cs{@latex at error}
-%   (almost) easily:
+%   And finish by ending the current file.
 %    \begin{macrocode}
-    \group_begin:
-      \cs_set:Npn \\ { \MessageBreak }
-      \cs_set_eq:NN \  \c_space_tl
-      \@latex at error
-        {
-          Mismatched~LaTeX~support~files~detected. \\
-          Loading~'#2'~aborted!
+    \tex_endinput:D
+  }
+%    \begin{macrocode}
+%
+%   Now define the actual error message:
+%    \begin{macrocode}
+\__kernel_msg_new:nnnn { kernel } { mismatched-support-file }
+  {
+    Mismatched~LaTeX~support~files~detected. \\
+    Loading~'#2'~aborted!
 %    \end{macrocode}
 %   \cs{c__kernel_expl_date_tl} may not exist, due to an older format,
 %   so only print the dates when the sentinel token list exists:
 %    \begin{macrocode}
-          \tl_if_exist:NT \c__kernel_expl_date_tl
-            {
-              \\ \\
-              The~L3~programming~layer~in~the~LaTeX~format \\
-              is~dated~\c__kernel_expl_date_tl,~but~in~your~TeX~
-              tree~the~files~require \\ at~least~#1.
-            }
-          \use_none:n
-        }
-        {
+    \tl_if_exist:NT \c__kernel_expl_date_tl
+      {
+        \\ \\
+        The~L3~programming~layer~in~the~LaTeX~format \\
+        is~dated~\c__kernel_expl_date_tl,~but~in~your~TeX~
+        tree~the~files~require \\ at~least~#1.
+      }
+  }
+  {
 %    \end{macrocode}
 %   The sequence containing the format files should have exactly one
 %   item: the format file currently being run.  If that's the case, the
@@ -3636,31 +3642,25 @@
 %   the list to the user, with appropriate indications of what's in the
 %   system and what's in the user tree.
 %    \begin{macrocode}
-          \int_compare:nNnTF { \seq_count:N \l_@@_tmp_seq } > 1
-            {
-              The~cause~seems~to~be~an~old~format~file~in~the~user~tree. \\
-              LaTeX~found~these~files:
-              \seq_map_tokens:Nn \l_@@_tmp_seq { \\~-~\use:n } \\
-              Try~deleting~the~file~in~the~user~tree~then~run~LaTeX~again.
-            }
-            {
-              The~most~likely~causes~are:
-              \\~-~A~recent~format~generation~failed;
-              \\~-~A~stray~format~file~in~the~user~tree~which~needs~
-                   to~be~removed~or~rebuilt;
-              \\~-~You~are~running~a~manually~installed~version~of~#2 \\
-              \ \ \ which~is~incompatible~with~the~version~in~LaTeX. \\
-            }
-          \\
-          LaTeX~will~abort~loading~the~incompatible~support~files~
-          but~this~may~lead~to \\ later~errors.~Please~ensure~that~
-          your~LaTeX~format~is~correctly~regenerated.
-        }
-    \group_end:
-%    \end{macrocode}
-%   And finish by ending the current file.
-%    \begin{macrocode}
-    \tex_endinput:D
+    \int_compare:nNnTF { \seq_count:N \l_@@_tmp_seq } > 1
+      {
+        The~cause~seems~to~be~an~old~format~file~in~the~user~tree. \\
+        LaTeX~found~these~files:
+        \seq_map_tokens:Nn \l_@@_tmp_seq { \\~-~\use:n } \\
+        Try~deleting~the~file~in~the~user~tree~then~run~LaTeX~again.
+      }
+      {
+        The~most~likely~causes~are:
+        \\~-~A~recent~format~generation~failed;
+        \\~-~A~stray~format~file~in~the~user~tree~which~needs~
+             to~be~removed~or~rebuilt;
+        \\~-~You~are~running~a~manually~installed~version~of~#2 \\
+        \ \ \ which~is~incompatible~with~the~version~in~LaTeX. \\
+      }
+    \\
+    LaTeX~will~abort~loading~the~incompatible~support~files~
+    but~this~may~lead~to \\ later~errors.~Please~ensure~that~
+    your~LaTeX~format~is~correctly~regenerated.
   }
 %    \end{macrocode}
 % \end{macro}

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 % \maketitle
 %
 % \begin{documentation}

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 % \maketitle
 %
 % \begin{documentation}

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -49,7 +49,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-09-03}
+% \date{Released 2020-09-06}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -69,7 +69,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-09-03}%
+\def\ExplFileDate{2020-09-06}%
 \begingroup
   \def\next{\endgroup}%
   \expandafter\ifx\csname PackageError\endcsname\relax
@@ -11822,52 +11822,52 @@
         kpsewhich ~ --all ~
           --engine = \c_sys_engine_exec_str
           \c_space_tl \c_sys_engine_format_str
-            \tl_if_empty:NF \development at branch@name { -dev } .fmt
+            \bool_lazy_and:nnF
+                { \tl_if_exist_p:N \development at branch@name }
+                { ! \tl_if_empty_p:N \development at branch@name }
+              { -dev } .fmt
       }
     \seq_clear:N \l__file_tmp_seq
     \ior_map_inline:Nn \g__file_internal_ior
       { \seq_put_right:Nn \l__file_tmp_seq {##1} }
     \ior_close:N \g__file_internal_ior
-    \group_begin:
-      \cs_set:Npn \\ { \MessageBreak }
-      \cs_set_eq:NN \  \c_space_tl
-      \@latex at error
-        {
-          Mismatched~LaTeX~support~files~detected. \\
-          Loading~'#2'~aborted!
-          \tl_if_exist:NT \c__kernel_expl_date_tl
-            {
-              \\ \\
-              The~L3~programming~layer~in~the~LaTeX~format \\
-              is~dated~\c__kernel_expl_date_tl,~but~in~your~TeX~
-              tree~the~files~require \\ at~least~#1.
-            }
-          \use_none:n
-        }
-        {
-          \int_compare:nNnTF { \seq_count:N \l__file_tmp_seq } > 1
-            {
-              The~cause~seems~to~be~an~old~format~file~in~the~user~tree. \\
-              LaTeX~found~these~files:
-              \seq_map_tokens:Nn \l__file_tmp_seq { \\~-~\use:n } \\
-              Try~deleting~the~file~in~the~user~tree~then~run~LaTeX~again.
-            }
-            {
-              The~most~likely~causes~are:
-              \\~-~A~recent~format~generation~failed;
-              \\~-~A~stray~format~file~in~the~user~tree~which~needs~
-                   to~be~removed~or~rebuilt;
-              \\~-~You~are~running~a~manually~installed~version~of~#2 \\
-              \ \ \ which~is~incompatible~with~the~version~in~LaTeX. \\
-            }
-          \\
-          LaTeX~will~abort~loading~the~incompatible~support~files~
-          but~this~may~lead~to \\ later~errors.~Please~ensure~that~
-          your~LaTeX~format~is~correctly~regenerated.
-        }
-    \group_end:
+    \__kernel_msg_error:nnnn { kernel } { mismatched-support-file }
+      {#1} {#2}
     \tex_endinput:D
   }
+\__kernel_msg_new:nnnn { kernel } { mismatched-support-file }
+  {
+    Mismatched~LaTeX~support~files~detected. \\
+    Loading~'#2'~aborted!
+    \tl_if_exist:NT \c__kernel_expl_date_tl
+      {
+        \\ \\
+        The~L3~programming~layer~in~the~LaTeX~format \\
+        is~dated~\c__kernel_expl_date_tl,~but~in~your~TeX~
+        tree~the~files~require \\ at~least~#1.
+      }
+  }
+  {
+    \int_compare:nNnTF { \seq_count:N \l__file_tmp_seq } > 1
+      {
+        The~cause~seems~to~be~an~old~format~file~in~the~user~tree. \\
+        LaTeX~found~these~files:
+        \seq_map_tokens:Nn \l__file_tmp_seq { \\~-~\use:n } \\
+        Try~deleting~the~file~in~the~user~tree~then~run~LaTeX~again.
+      }
+      {
+        The~most~likely~causes~are:
+        \\~-~A~recent~format~generation~failed;
+        \\~-~A~stray~format~file~in~the~user~tree~which~needs~
+             to~be~removed~or~rebuilt;
+        \\~-~You~are~running~a~manually~installed~version~of~#2 \\
+        \ \ \ which~is~incompatible~with~the~version~in~LaTeX. \\
+      }
+    \\
+    LaTeX~will~abort~loading~the~incompatible~support~files~
+    but~this~may~lead~to \\ later~errors.~Please~ensure~that~
+    your~LaTeX~format~is~correctly~regenerated.
+  }
 \__kernel_msg_new:nnnn { kernel } { file-not-found }
   { File~'#1'~not~found. }
   {

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex	2020-09-07 21:21:46 UTC (rev 56286)
@@ -19,9 +19,19 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-09-03}%
+\def\ExplFileDate{2020-09-06}%
 \let\ExplLoaderFileDate\ExplFileDate
 \begingroup
+  \catcode`\>=12
+  \def\aux#1>{}
+  \def\auxi{c__kernel_expl_date_tl}%
+  \edef\auxi{\expandafter\aux\meaning\auxi}%
+  \expandafter
+  \ifx\csname\auxi\endcsname\relax
+    \global\expandafter\let\csname\auxi\endcsname\ExplFileDate
+  \fi
+\endgroup
+\begingroup
   \def\tempa{LaTeX2e}%
   \def\next{}%
   \ifx\fmtname\tempa

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx	2020-09-07 21:21:46 UTC (rev 56286)
@@ -19,12 +19,18 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-09-03}%
+\def\ExplFileDate{2020-09-06}%
 \let\ExplLoaderFileDate\ExplFileDate
-\unless\ifcsname\detokenize{c__kernel_expl_date_tl}\endcsname
-  \global\expandafter\let\csname\detokenize
-    {c__kernel_expl_date_tl}\endcsname\ExplFileDate
-\fi
+\begingroup
+  \catcode`\>=12
+  \def\aux#1>{}
+  \def\auxi{c__kernel_expl_date_tl}%
+  \edef\auxi{\expandafter\aux\meaning\auxi}%
+  \expandafter
+  \ifx\csname\auxi\endcsname\relax
+    \global\expandafter\let\csname\auxi\endcsname\ExplFileDate
+  \fi
+\endgroup
 \everyjob\expandafter{\the\everyjob
   \message{L3 programming layer <\ExplFileDate>}%
 }

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty	2020-09-07 21:21:12 UTC (rev 56285)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty	2020-09-07 21:21:46 UTC (rev 56286)
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-09-03}%
+\def\ExplFileDate{2020-09-06}%
 \let\ExplLoaderFileDate\ExplFileDate
 \ProvidesPackage{expl3}
   [%



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