4 files changed, 11 insertions, 8 deletions
diff --git a/Master/texmf-dist/doc/latex/chemformula/README b/Master/texmf-dist/doc/latex/chemformula/README
index b171813d7da..fda9482523e 100644
--- a/Master/texmf-dist/doc/latex/chemformula/README
+++ b/Master/texmf-dist/doc/latex/chemformula/README
@@ -1,5 +1,5 @@
 --------------------------------------------------------------------------
-the CHEMFORMULA package v4.15e 2017/03/23
+the CHEMFORMULA package v4.15f 2019/09/23
 
   typeset chemical compounds and reactions
 
@@ -8,7 +8,7 @@ Clemens Niederberger
 Web:    http://www.mychemistry.eu/forums/forum/chemformula/
 E-Mail: contact@mychemistry.eu
 --------------------------------------------------------------------------
-Copyright 2011-2017 Clemens Niederberger
+Copyright 2011-2019 Clemens Niederberger
 
 This work may be distributed and/or modified under the
 conditions of the LaTeX Project Public License, either version 1.3
diff --git a/Master/texmf-dist/doc/latex/chemformula/chemformula_en.pdf b/Master/texmf-dist/doc/latex/chemformula/chemformula_en.pdf
index f89c0d11e89..499a93ad74b 100644
--- a/Master/texmf-dist/doc/latex/chemformula/chemformula_en.pdf
+++ b/Master/texmf-dist/doc/latex/chemformula/chemformula_en.pdf
diff --git a/Master/texmf-dist/doc/latex/chemformula/chemformula_en.tex b/Master/texmf-dist/doc/latex/chemformula/chemformula_en.tex
index 0ff1bc09798..5dbb268e706 100644
--- a/Master/texmf-dist/doc/latex/chemformula/chemformula_en.tex
+++ b/Master/texmf-dist/doc/latex/chemformula/chemformula_en.tex
@@ -16,7 +16,7 @@
 % If you have any ideas, questions, suggestions or bugs to report, please
 % feel free to contact me.
 % --------------------------------------------------------------------------
-% Copyright 2011-2017 Clemens Niederberger
+% Copyright 2011-2019 Clemens Niederberger
 %
 % This work may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either version 1.3
@@ -65,7 +65,7 @@
     addplot,
     chemfig,
     DeclareInstance, draw,
-    sample, setatomsep, sfrac,
+    sample, setchemfig, sfrac,
     usetikzlibrary
   } ,
   index-setup = { othercode=\footnotesize, level=\section , noclearpage } ,
@@ -89,6 +89,7 @@
 \usepackage[biblatex]{embrac}
 \ChangeEmph{[}[,.02em]{]}[.055em,-.08em]
 \ChangeEmph{(}[-.01em,.04em]{)}[.04em,-.05em]
+\usepackage{csquotes}
 
 \usepackage[accsupp]{acro}
 \acsetup{
@@ -1128,7 +1129,7 @@ of the labels.  What stays constant is the part that protrudes the labels.
   \ch{A ->[abc] B} \par
   \ch{A ->[abc~abc] B} \par
   % needs the `chemfig' package:
-  \setatomsep{15pt}
+  \setchemfig{atom sep =15pt}
   \ch{A ->[ "\chemfig{-[:30]-[:-30]OH}" ] B} \par
 \end{example}
 
diff --git a/Master/texmf-dist/tex/latex/chemformula/chemformula.sty b/Master/texmf-dist/tex/latex/chemformula/chemformula.sty
index d909b178792..da9b6fe414d 100644
--- a/Master/texmf-dist/tex/latex/chemformula/chemformula.sty
+++ b/Master/texmf-dist/tex/latex/chemformula/chemformula.sty
@@ -12,7 +12,7 @@
 % If you have any ideas, questions, suggestions or bugs to report, please
 % feel free to contact me.
 % --------------------------------------------------------------------------
-% Copyright 2011-2017 Clemens Niederberger
+% Copyright 2011-2019 Clemens Niederberger
 %
 % This work may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either version 1.3
@@ -30,9 +30,9 @@
 \usetikzlibrary{arrows.meta}
 
 \ExplSyntaxOn
-\tl_const:Nn \c_chemformula_date_tl {2017/03/23}
+\tl_const:Nn \c_chemformula_date_tl {2019/09/23}
 \tl_const:Nn \c_chemformula_version_number_tl {4.15}
-\tl_const:Nn \c_chemformula_version_suffix_tl {e}
+\tl_const:Nn \c_chemformula_version_suffix_tl {f}
 \tl_const:Nx \c_chemformula_version_tl
   { \c_chemformula_version_number_tl \c_chemformula_version_suffix_tl }
 \tl_const:Nn \c_chemformula_info_tl
@@ -181,6 +181,8 @@
 
 \seq_new:N \l__chemformula_tmpa_seq
 
+\bool_new:N \l__chemformula_tmpa_bool
+
 % booleans:
 % these are official:
 \bool_new:N      \l_chemformula_inside_ch_bool