l3 (13oct19)

git-svn-id: svn://tug.org/texlive/trunk@52357 c570f23f-e606-0410-a88d-b1316a301751

62 files changed, 120 insertions, 97 deletions

diff --git a/Master/texmf-dist/doc/latex/l3experimental/CHANGELOG.md b/Master/texmf-dist/doc/latex/l3experimental/CHANGELOG.md
index bf5f13f9cae..aa89134c6f4 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/CHANGELOG.md
+++ b/Master/texmf-dist/doc/latex/l3experimental/CHANGELOG.md
@@ -7,6 +7,12 @@ this project uses date-based 'snapshot' version identifiers.
 
 ## [Unreleased]
 
+## [2019-10-11]
+
+### Fixed
+
+- Error message for unknown colors (see #640)
+
 ## [2019-09-28]
 
 ### Changed
@@ -124,7 +130,8 @@ this project uses date-based 'snapshot' version identifiers.
 - New `l3color` module using `xcolor`-like expression syntax
 - New `l3draw` module, based on `pgf` layer of the TikZ system
 
-[Unreleased]: https://github.com/latex3/latex3/compare/2019-09-28...HEAD
+[Unreleased]: https://github.com/latex3/latex3/compare/2019-10-11...HEAD
+[2019-10-11]: https://github.com/latex3/latex3/compare/2019-09-28...2019-10-11
 [2019-09-28]: https://github.com/latex3/latex3/compare/2019-09-19...2019-09-28
 [2019-09-19]: https://github.com/latex3/latex3/compare/2019-08-25...2019-09-19
 [2019-08-25]: https://github.com/latex3/latex3/compare/2019-07-01...2019-08-25
diff --git a/Master/texmf-dist/doc/latex/l3experimental/README.md b/Master/texmf-dist/doc/latex/l3experimental/README.md
index 6b353b9504a..e0c3412ce34 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/README.md
+++ b/Master/texmf-dist/doc/latex/l3experimental/README.md
@@ -1,7 +1,7 @@
 Experimental LaTeX3 Concepts
 ============================
 
-Release 2019-09-28
+Release 2019-10-11
 
 Overview
 --------
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3benchmark/l3benchmark.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3benchmark/l3benchmark.pdf
index e5af65076d0..4ca0a1f13e4 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3benchmark/l3benchmark.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3benchmark/l3benchmark.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3cctab/l3cctab.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3cctab/l3cctab.pdf
index b5e4c9174f3..be1aa485231 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3cctab/l3cctab.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3cctab/l3cctab.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3color/l3color.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3color/l3color.pdf
index cf156af05bc..c6c42016e8b 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3color/l3color.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3color/l3color.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw-code.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw-code.pdf
index fcd4063c175..3f44b3e82c4 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw-code.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw-code.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw.pdf
index 69c481bbee0..949c82acbf2 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3draw/l3draw.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3graphics/l3graphics.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3graphics/l3graphics.pdf
index b8216903162..d3c36505fe5 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3graphics/l3graphics.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3graphics/l3graphics.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf-code.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf-code.pdf
index 8ab758a3180..fcbbc8883d3 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf-code.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf-code.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf.pdf
index e482f9058b3..fefcea1f743 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3pdf/l3pdf.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf
index 7a7858d005b..3b22a08fd4e 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3sys-shell/l3sys-shell.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3sys-shell/l3sys-shell.pdf
index e306a267cb8..271d03ab3ea 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3sys-shell/l3sys-shell.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3sys-shell/l3sys-shell.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf b/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf
index 2f93f907db7..343b91a3c66 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf b/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf
index c14696e3cf0..8de12d7da86 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf
diff --git a/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf b/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf
index 0e5f3fa86c5..287b12301d2 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf
diff --git a/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md b/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md
index 9f4f5373015..cf63a73ebf7 100644
--- a/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md
+++ b/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md
@@ -7,9 +7,13 @@ this project uses date-based 'snapshot' version identifiers.
 
 ## [Unreleased]
 
+## [2019-10-11]
+
+- `xparse`: Allow processors to depend on other arguments (fixes #629)
+
 ## [2019-05-28]
 
-- Remove stray spaces in processor information
+- `xparse`: Remove stray spaces in processor information
 
 ## [2019-05-03]
 
@@ -50,7 +54,8 @@ this project uses date-based 'snapshot' version identifiers.
 - Switch to ISO date format
 - Improve cross-module use of internal functions
 
-[Unreleased]: https://github.com/latex3/latex3/compare/2019-05-28...HEAD
+[Unreleased]: https://github.com/latex3/latex3/compare/2019-10-11...HEAD
+[2019-10-11]: https://github.com/latex3/latex3/compare/2019-05-28...2019-10-11
 [2019-05-28]: https://github.com/latex3/latex3/compare/2019-05-03...2019-05-28
 [2019-05-03]: https://github.com/latex3/latex3/compare/2019-03-05...2019-05-03
 [2019-03-05]: https://github.com/latex3/latex3/compare/2019-09-24...2019-03-05
diff --git a/Master/texmf-dist/doc/latex/l3packages/README.md b/Master/texmf-dist/doc/latex/l3packages/README.md
index 413bc2a8a67..cfe6b5f904a 100644
--- a/Master/texmf-dist/doc/latex/l3packages/README.md
+++ b/Master/texmf-dist/doc/latex/l3packages/README.md
@@ -1,7 +1,7 @@
 LaTeX3 High-Level Concepts
 ==========================
 
-Release 2019-05-28
+Release 2019-10-11
 
 Overview
 --------
@@ -94,27 +94,7 @@ The LaTeX3 Project
 ------------------
 
 Development of LaTeX3 is carried out by
-[The LaTeX3 Project](http://www.latex-project.org/latex3.html). Currently,
-the team members are
-
-* Johannes Braams
-* David Carlisle
-* Robin Fairbairns
-* Morten Høgholm
-* Bruno Le Floch
-* Thomas Lotze
-* Frank Mittelbach
-* Will Robertson
-* Chris Rowley
-* Rainer Schöpf
-* Joseph Wright
-
-Former members of The LaTeX3 Project team were
-
-* Michael Downes
-* Denys Duchier
-* Alan Jeffrey
-* Martin Schröder
+[The LaTeX3 Project](https://www.latex-project.org/latex3/).
 
 The development team can be contacted
 by e-mail: <latex-team@latex-project.org>; for general LaTeX3 discussion
diff --git a/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf b/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
index aee2995d1f1..661b4171c7d 100644
--- a/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
diff --git a/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf b/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
index 3f595b37c9a..35921ed1620 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
diff --git a/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf b/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
index 9a4da3d7b33..06f7ea363a8 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
diff --git a/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf b/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
index 4fb161e35e2..b6822014f4d 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
diff --git a/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf b/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
index 0b716f7d707..4d4258f8d04 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3benchmark/l3benchmark.dtx b/Master/texmf-dist/source/latex/l3experimental/l3benchmark/l3benchmark.dtx
index f90bd2f1c46..e66d06bdcbd 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3benchmark/l3benchmark.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3benchmark/l3benchmark.dtx
@@ -46,7 +46,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -130,7 +130,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3benchmark}{2019-09-28}{}
+\ProvidesExplPackage{l3benchmark}{2019-10-11}{}
   {L3 Experimental benchmarking}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3cctab/l3cctab.dtx b/Master/texmf-dist/source/latex/l3experimental/l3cctab/l3cctab.dtx
index 64266fe7816..3d6aadc98da 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3cctab/l3cctab.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3cctab/l3cctab.dtx
@@ -46,7 +46,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -171,7 +171,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3cctab}{2019-09-28}{}
+\ProvidesExplPackage{l3cctab}{2019-10-11}{}
   {L3 Experimental category code tables}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3color/l3color.dtx b/Master/texmf-dist/source/latex/l3experimental/l3color/l3color.dtx
index d6dd271ee25..16147a3fb2e 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3color/l3color.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3color/l3color.dtx
@@ -46,7 +46,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -191,7 +191,7 @@
 %     \cs{color_show:n} \Arg{name}
 %   \end{syntax}
 %   Displays the color specification stored in the \meta{name} on the
-%   terminal
+%   terminal.
 % \end{function}
 %
 % \section{Selecting colors}
@@ -243,7 +243,9 @@
 %     \cs{color_parse:nN} \Arg{color expression} \Arg{tl}
 %   \end{syntax}
 %   Parses the \meta{color expression} as described above, and sets the
-%   \meta{tl} the the equivalent \meta{core color representation}.
+%   \meta{tl} the the equivalent \meta{core color representation}
+%   (used at the backend level and based on \texttt{dvips} color
+%   representation).
 % \end{function}
 %
 % \section{Spot colors}
@@ -265,7 +267,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3color}{2019-09-28}{}
+\ProvidesExplPackage{l3color}{2019-10-11}{}
   {L3 Experimental color support}
 %</package>
 %    \end{macrocode}
@@ -474,7 +476,7 @@
           { \@@_parse_loop_init:Nnn #1 {#2} {#3} }
       }
       {
-        \__kernel_msg_error:nnn { color } { unknown-color } {#3}
+        \__kernel_msg_error:nnn { color } { unknown-color } {#2}
         \tl_set_eq:NN \l_@@_current_tl \l_@@_named_black_tl
       }
   }
@@ -699,8 +701,8 @@
 % \end{macro}
 %
 % \begin{macro}{\@@_select:}
-%   A driver-neutral location for \enquote{last minute} manipulations before
-%   handing off to the driver code.  We set the special |.| syntax here: this
+%   A backend-neutral location for \enquote{last minute} manipulations before
+%   handing off to the backend code.  We set the special |.| syntax here: this
 %   will therefore always be available. The finalisation is separate from the
 %   main function so it can also be applied to \emph{e.g.}~page color.
 %    \begin{macrocode}
@@ -714,7 +716,7 @@
 %
 % \begin{macro}{\color_select:n}
 % \begin{macro}{\color_select:nn}
-%   Parse the input expressions then get the driver to actually activate
+%   Parse the input expressions then get the backend to actually activate
 %   them.
 %    \begin{macrocode}
 \cs_new_protected:Npn \color_select:n #1
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-boxes.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-boxes.dtx
index 30b49526571..6424fbe6a16 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-boxes.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-boxes.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-layers.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-layers.dtx
index c46f2489e3f..e9b86fd30e0 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-layers.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-layers.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-paths.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-paths.dtx
index b6291a32800..442b158fbc0 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-paths.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-paths.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-points.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-points.dtx
index b05e29afe92..7c3749a956e 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-points.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-points.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-scopes.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-scopes.dtx
index bbd5c83c66d..de1036ef526 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-scopes.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-scopes.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-softpath.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-softpath.dtx
index ee228be271e..0b51687b9f5 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-softpath.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-softpath.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-state.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-state.dtx
index 1137c9d1798..4bea6a4943c 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-state.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-state.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-transforms.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-transforms.dtx
index 17a225f597c..39873b59a22 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-transforms.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw-transforms.dtx
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw.dtx b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw.dtx
index 5813b7edf7a..66b7b73f35e 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3draw/l3draw.dtx
@@ -110,7 +110,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -1146,7 +1146,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3draw}{2019-09-28}{}
+\ProvidesExplPackage{l3draw}{2019-10-11}{}
   {L3 Experimental core drawing support}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3graphics/l3graphics.dtx b/Master/texmf-dist/source/latex/l3experimental/l3graphics/l3graphics.dtx
index 08d5ae4f63f..8deb2335ed9 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3graphics/l3graphics.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3graphics/l3graphics.dtx
@@ -46,7 +46,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -241,7 +241,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3graphics}{2019-09-28}{}
+\ProvidesExplPackage{l3graphics}{2019-10-11}{}
   {L3 Experimental graphics inclusion support}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3pdf/l3pdf.dtx b/Master/texmf-dist/source/latex/l3experimental/l3pdf/l3pdf.dtx
index d3784bb4e2f..61ac10ef896 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3pdf/l3pdf.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3pdf/l3pdf.dtx
@@ -46,7 +46,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -185,7 +185,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3pdf}{2019-09-28}{}
+\ProvidesExplPackage{l3pdf}{2019-10-11}{}
   {L3 Experimental core PDF support}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-format.dtx b/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-format.dtx
index eb06238f1c0..03fd22c5ea7 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-format.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3str/l3str-format.dtx
@@ -48,7 +48,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -167,7 +167,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3str-format}{2019-09-28}{}
+\ProvidesExplPackage{l3str-format}{2019-10-11}{}
   {L3 Experimental string formatting}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/l3sys-shell/l3sys-shell.dtx b/Master/texmf-dist/source/latex/l3experimental/l3sys-shell/l3sys-shell.dtx
index 18310b65848..f1aaa56c933 100644
--- a/Master/texmf-dist/source/latex/l3experimental/l3sys-shell/l3sys-shell.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/l3sys-shell/l3sys-shell.dtx
@@ -46,7 +46,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -136,7 +136,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3sys-shell}{2019-09-28}{}
+\ProvidesExplPackage{l3sys-shell}{2019-10-11}{}
   {L3 Experimental system shell functions}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/xcoffins/xcoffins.dtx b/Master/texmf-dist/source/latex/l3experimental/xcoffins/xcoffins.dtx
index b4d0ce465a7..7e3d89e7c2d 100644
--- a/Master/texmf-dist/source/latex/l3experimental/xcoffins/xcoffins.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/xcoffins/xcoffins.dtx
@@ -56,7 +56,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -675,7 +675,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xcoffins}{2019-09-28}{}
+\ProvidesExplPackage{xcoffins}{2019-10-11}{}
   {L3 Experimental design level coffins}
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/source/latex/l3experimental/xgalley/l3galley.dtx b/Master/texmf-dist/source/latex/l3experimental/xgalley/l3galley.dtx
index 06ffe81ab0d..a4d768b05eb 100644
--- a/Master/texmf-dist/source/latex/l3experimental/xgalley/l3galley.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/xgalley/l3galley.dtx
@@ -61,7 +61,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -687,7 +687,7 @@
 %
 %    \begin{macrocode}
 %<*package>
-\ProvidesExplPackage{l3galley}{2019-09-28}{}
+\ProvidesExplPackage{l3galley}{2019-10-11}{}
   {L3 Experimental galley code}
 %</package>
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3experimental/xgalley/xgalley.dtx b/Master/texmf-dist/source/latex/l3experimental/xgalley/xgalley.dtx
index cc6da75e0fb..a0c9d83c802 100644
--- a/Master/texmf-dist/source/latex/l3experimental/xgalley/xgalley.dtx
+++ b/Master/texmf-dist/source/latex/l3experimental/xgalley/xgalley.dtx
@@ -47,7 +47,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-09-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -734,7 +734,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xgalley}{2019-09-28}{}
+\ProvidesExplPackage{xgalley}{2019-10-11}{}
   {L3 Experimental galley}
 \RequirePackage{xparse,xtemplate,l3galley}
 %    \end{macrocode}
diff --git a/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx b/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx
index 92f3e82a371..9a10f7ef791 100644
--- a/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx
+++ b/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx
@@ -62,7 +62,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-05-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -133,7 +133,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{l3keys2e}{2019-05-28}{}
+\ProvidesExplPackage{l3keys2e}{2019-10-11}{}
   {LaTeX2e option processing using LaTeX3 keys}
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx b/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx
index 1b6cbd36808..33f66c6589d 100644
--- a/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx
+++ b/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx
@@ -64,7 +64,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-05-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -167,7 +167,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xfp}{2019-05-28}{}
+\ProvidesExplPackage{xfp}{2019-10-11}{}
   {L3 Floating point unit}
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx b/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx
index fa1739eee5b..62600c37be0 100644
--- a/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx
+++ b/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx
@@ -65,7 +65,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-05-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -535,7 +535,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xfrac}{2019-05-28}{}
+\ProvidesExplPackage{xfrac}{2019-10-11}{}
   {L3 Experimental split-level fractions}
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx b/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx
index 6aee5f22f6f..2a0b842fbb9 100644
--- a/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx
+++ b/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx
@@ -67,7 +67,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-05-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -340,6 +340,7 @@
 % mailing list.
 %
 % \subsection{Default values of arguments}
+% \label{sec:defaultvaluesofarguments}
 %
 % Uppercase argument types (\texttt{O}, \texttt{D}, \ldots{}) allow to
 % specify a default value to be used when the argument is missing; their
@@ -676,6 +677,23 @@
 % followed by \cs{ProcessorB} to the tokens grabbed by the \texttt{m}
 % argument.
 %
+% It might sometimes be useful to use the value of another argument as
+% one of the arguments of a processor.  For example, using the
+% \cs{SplitList} processor defined below,
+% \begin{verbatim}
+%   \NewDocumentCommand \foo { O{,} >{\SplitList{#1}} m } { \foobar{#2} }
+%   \foo{a,b;c,d}
+% \end{verbatim}
+% results in |\foobar| receiving the argument |{a}{b;c}{d}| because
+% \cs{SplitList} receives as its two arguments the optional one (whose
+% value here is the default, a comma) and the mandatory one.  To
+% summarize, first the arguments are searched for in the input, then any
+% default argument is determined as explained in
+% Section~\ref{sec:defaultvaluesofarguments}, then these default
+% arguments are passed to any processor.  When referring to arguments
+% (through |#1|, |#2| and so on) in a processor, the arguments used are
+% always those before applying any processor.
+%
 % \begin{variable}{\ProcessedArgument}
 %   \pkg{xparse} defines a very small set of processor functions. In the
 %   main, it is anticipated that code writers will want to create their
@@ -898,7 +916,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xparse}{2019-05-28}{}
+\ProvidesExplPackage{xparse}{2019-10-11}{}
   {L3 Experimental document command parser}
 %    \end{macrocode}
 %
@@ -1552,11 +1570,13 @@
 % \end{macro}
 %
 % \begin{macro}{\@@_args_process:}
-% \begin{macro}{\@@_args_process_loop:nn, \@@_args_process_aux:n, \@@_args_process_aux:nn}
+% \begin{macro}{\@@_args_process_loop:nn, \@@_args_process_aux:n}
 %   Loop through arguments (stored in \cs{l_@@_args_tl}) and the
 %   corresponding processors (in \cs{l_@@_process_all_tl})
 %   simultaneously, apply all processors for each argument and store the
-%   result back into \cs{l_@@_args_tl}.
+%   result back into \cs{l_@@_args_tl}.  To allow processors to depend
+%   on other arguments, for every processor define a temporary auxiliary
+%   that receives all arguments \cs{l_@@_args_tl}.
 %    \begin{macrocode}
 \cs_new_protected:Npn \@@_args_process:
   {
@@ -1575,9 +1595,13 @@
     \tl_put_right:No \l_@@_args_ii_tl
       { \exp_after:wN { \ProcessedArgument } }
   }
-\cs_new_protected:Npn \@@_args_process_aux:n
-  { \exp_args:No \@@_args_process_aux:nn { \ProcessedArgument } }
-\cs_new_protected:Npn \@@_args_process_aux:nn #1#2 { #2 {#1} }
+\cs_new_protected:Npn \@@_args_process_aux:n #1
+  {
+    \cs_generate_from_arg_count:NNnn \@@_tmp:w \cs_set:Npn
+      { \tl_count:N \l_@@_args_tl } {#1}
+    \exp_args:NNNo \exp_after:wN \@@_tmp:w \l_@@_args_tl
+      { \ProcessedArgument }
+  }
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -4336,6 +4360,7 @@
       { \@@_peek_nonspace_aux:nNNTF { #1 ~ } #2 #3 {#4} {#5} }
       { #2 #3 { #4 } { #5 #1 } }
   }
+%    \end{macrocode}
 % \end{macro}
 %
 % \subsection{Messages}
diff --git a/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx b/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx
index 04aa51be36d..c12297b4edd 100644
--- a/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx
+++ b/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx
@@ -63,7 +63,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2019-05-28}
+% \date{Released 2019-10-11}
 %
 % \maketitle
 %
@@ -682,7 +682,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xtemplate}{2019-05-28}{}
+\ProvidesExplPackage{xtemplate}{2019-10-11}{}
   {L3 Experimental prototype document functions}
 %    \end{macrocode}
 %
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3benchmark/l3benchmark.sty b/Master/texmf-dist/tex/latex/l3experimental/l3benchmark/l3benchmark.sty
index ad5ea35bfa8..eb568089f31 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3benchmark/l3benchmark.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3benchmark/l3benchmark.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3benchmark.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3benchmark}{2019-09-28}{}
+\ProvidesExplPackage{l3benchmark}{2019-10-11}{}
   {L3 Experimental benchmarking}
 \sys_if_engine_luatex:TF
   {
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3cctab/l3cctab.sty b/Master/texmf-dist/tex/latex/l3experimental/l3cctab/l3cctab.sty
index 4abe31aa162..62db595f6a9 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3cctab/l3cctab.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3cctab/l3cctab.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3cctab.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3cctab}{2019-09-28}{}
+\ProvidesExplPackage{l3cctab}{2019-10-11}{}
   {L3 Experimental category code tables}
 \int_new:N  \g__cctab_allocate_int
 \int_gset:Nn \g__cctab_allocate_int { -1 }
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3color/l3color.sty b/Master/texmf-dist/tex/latex/l3experimental/l3color/l3color.sty
index 6afc987a370..519151e0057 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3color/l3color.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3color/l3color.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3color.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3color}{2019-09-28}{}
+\ProvidesExplPackage{l3color}{2019-10-11}{}
   {L3 Experimental color support}
 \tl_new:N \l__color_internal_tl
 \prg_new_conditional:Npnn \__color_if_defined:n #1 { T, F, TF }
@@ -106,7 +106,7 @@
           { \__color_parse_loop_init:Nnn #1 {#2} {#3} }
       }
       {
-        \__kernel_msg_error:nnn { color } { unknown-color } {#3}
+        \__kernel_msg_error:nnn { color } { unknown-color } {#2}
         \tl_set_eq:NN \l__color_current_tl \l__color_named_black_tl
       }
   }
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3draw/l3draw.sty b/Master/texmf-dist/tex/latex/l3experimental/l3draw/l3draw.sty
index 4d3ebbb6157..cdd870cc8d2 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3draw/l3draw.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3draw/l3draw.sty
@@ -28,7 +28,7 @@
 %% 
 %% File: l3draw.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3draw}{2019-09-28}{}
+\ProvidesExplPackage{l3draw}{2019-10-11}{}
   {L3 Experimental core drawing support}
 \RequirePackage { l3color }
 %% File: l3draw-boxes.dtx
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3graphics/l3graphics.sty b/Master/texmf-dist/tex/latex/l3experimental/l3graphics/l3graphics.sty
index 967a67c77b2..1aff5007f6d 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3graphics/l3graphics.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3graphics/l3graphics.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3graphics.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3graphics}{2019-09-28}{}
+\ProvidesExplPackage{l3graphics}{2019-10-11}{}
   {L3 Experimental graphics inclusion support}
 \ior_new:N \l__graphics_tmp_ior
 \tl_new:N  \l__graphics_tmp_tl
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3pdf/l3pdf.sty b/Master/texmf-dist/tex/latex/l3experimental/l3pdf/l3pdf.sty
index d6efa3067db..aa46e4d56a3 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3pdf/l3pdf.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3pdf/l3pdf.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3pdf.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3pdf}{2019-09-28}{}
+\ProvidesExplPackage{l3pdf}{2019-10-11}{}
   {L3 Experimental core PDF support}
 \bool_new:N \g__pdf_init_bool
 \cs_if_exist:NT \documentclass
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str-format.sty b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str-format.sty
index cf2d0d3bd21..63b8e57edf9 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str-format.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str-format.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3str-format.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3str-format}{2019-09-28}{}
+\ProvidesExplPackage{l3str-format}{2019-10-11}{}
   {L3 Experimental string formatting}
 \cs_generate_variant:Nn \use:nn { nf }
 \cs_generate_variant:Nn \use:nnn { fnf }
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3sys-shell/l3sys-shell.sty b/Master/texmf-dist/tex/latex/l3experimental/l3sys-shell/l3sys-shell.sty
index 12192b6ed91..4e8d868d796 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3sys-shell/l3sys-shell.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3sys-shell/l3sys-shell.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: l3sys-shell.dtx
 \RequirePackage{expl3}
-\ProvidesExplPackage{l3sys-shell}{2019-09-28}{}
+\ProvidesExplPackage{l3sys-shell}{2019-10-11}{}
   {L3 Experimental system shell functions}
 \cs_new:Npn \__sys_path_to_win:n #1
   {
diff --git a/Master/texmf-dist/tex/latex/l3experimental/xcoffins/xcoffins.sty b/Master/texmf-dist/tex/latex/l3experimental/xcoffins/xcoffins.sty
index 444e150c2c5..b5b8d6b633b 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/xcoffins/xcoffins.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/xcoffins/xcoffins.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: xcoffins.dtx
 \RequirePackage{xparse}
-\ProvidesExplPackage{xcoffins}{2019-09-28}{}
+\ProvidesExplPackage{xcoffins}{2019-10-11}{}
   {L3 Experimental design level coffins}
 \keys_define:nn { coffin }
   {
diff --git a/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty b/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty
index 52890f5f912..09ad53f47d6 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{l3galley}{2019-09-28}{}
+\ProvidesExplPackage{l3galley}{2019-10-11}{}
   {L3 Experimental galley code}
 \int_new:N \l__galley_tmp_int
 \seq_new:N \g__galley_tmpa_seq
diff --git a/Master/texmf-dist/tex/latex/l3experimental/xgalley/xgalley.sty b/Master/texmf-dist/tex/latex/l3experimental/xgalley/xgalley.sty
index 84c5685db6d..eadda7c0ef0 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/xgalley/xgalley.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/xgalley/xgalley.sty
@@ -20,7 +20,7 @@
 %% 
 %% File: xgalley.dtx
 \RequirePackage{xparse}
-\ProvidesExplPackage{xgalley}{2019-09-28}{}
+\ProvidesExplPackage{xgalley}{2019-10-11}{}
   {L3 Experimental galley}
 \RequirePackage{xparse,xtemplate,l3galley}
 \clist_new:N \l__galley_tmpa_clist
diff --git a/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty b/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
index 4f76f142838..caa9f140b04 100644
--- a/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{l3keys2e}{2019-05-28}{}
+\ProvidesExplPackage{l3keys2e}{2019-10-11}{}
   {LaTeX2e option processing using LaTeX3 keys}
 \cs_generate_variant:Nn \clist_put_right:Nn { Nv }
 \cs_generate_variant:Nn \keys_if_exist:nnT  { nx }
diff --git a/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty b/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
index 65be7159a88..1c07dc0e4b5 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
@@ -33,7 +33,7 @@
     \endinput
   }
 \RequirePackage{xparse}
-\ProvidesExplPackage{xfp}{2019-05-28}{}
+\ProvidesExplPackage{xfp}{2019-10-11}{}
   {L3 Floating point unit}
 \NewExpandableDocumentCommand \fpeval { m } { \fp_eval:n {#1} }
 \NewExpandableDocumentCommand \inteval { m } { \int_eval:n {#1} }
diff --git a/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty b/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
index 33bfe8e6696..959ceb14c75 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
@@ -33,7 +33,7 @@
     \endinput
   }
 \RequirePackage{amstext,graphicx,l3keys2e,textcomp,xparse,xtemplate}
-\ProvidesExplPackage{xfrac}{2019-05-28}{}
+\ProvidesExplPackage{xfrac}{2019-10-11}{}
   {L3 Experimental split-level fractions}
 \keys_define:nn { xfrac }
   {
diff --git a/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty b/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
index 96a9229784e..23b13604691 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{xparse}{2019-05-28}{}
+\ProvidesExplPackage{xparse}{2019-10-11}{}
   {L3 Experimental document command parser}
 \tl_new:N \l__xparse_arg_spec_tl
 \tl_new:N \l__xparse_args_tl
@@ -341,9 +341,13 @@
     \tl_put_right:No \l__xparse_args_ii_tl
       { \exp_after:wN { \ProcessedArgument } }
   }
-\cs_new_protected:Npn \__xparse_args_process_aux:n
-  { \exp_args:No \__xparse_args_process_aux:nn { \ProcessedArgument } }
-\cs_new_protected:Npn \__xparse_args_process_aux:nn #1#2 { #2 {#1} }
+\cs_new_protected:Npn \__xparse_args_process_aux:n #1
+  {
+    \cs_generate_from_arg_count:NNnn \__xparse_tmp:w \cs_set:Npn
+      { \tl_count:N \l__xparse_args_tl } {#1}
+    \exp_args:NNNo \exp_after:wN \__xparse_tmp:w \l__xparse_args_tl
+      { \ProcessedArgument }
+  }
 \cs_new:Npn \__xparse_start_expandable:nNNNNn #1#2#3#4#5#6
   { #6 \__xparse_end_expandable:NNw #5 #4 \q__xparse #2#3 }
 \cs_new:Npn \__xparse_end_expandable:NNw #1#2
diff --git a/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty b/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
index 08e2163a82d..80b85276d37 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{xtemplate}{2019-05-28}{}
+\ProvidesExplPackage{xtemplate}{2019-10-11}{}
   {L3 Experimental prototype document functions}
 \tl_const:Nn \c__xtemplate_code_root_tl      { template~code~>~ }
 \tl_const:Nn \c__xtemplate_defaults_root_tl  { template~defaults~>~ }