5 files changed, 10 insertions, 8 deletions
diff --git a/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf b/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf
index 6cf3c313e7c..3f1745d7839 100644
--- a/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf
+++ b/Master/texmf-dist/doc/latex/siunitx/siunitx.pdf
diff --git a/Master/texmf-dist/source/latex/siunitx/siunitx.dtx b/Master/texmf-dist/source/latex/siunitx/siunitx.dtx
index c4a801212de..835c0422689 100644
--- a/Master/texmf-dist/source/latex/siunitx/siunitx.dtx
+++ b/Master/texmf-dist/source/latex/siunitx/siunitx.dtx
@@ -521,6 +521,8 @@ This work consists of the file  siunitx.dtx
 %  options when \opt{free-standing-units} is active}
 %\changes{v2.1e}{2010/11/22}{Fix issues with text mode symbols and
 %  \pkg{fontspec} package}
+%\changes{v2.1f}{2010/11/24}{Typo in definition for
+%  \opt{unit-optional-argument} implementation corrected}
 %  
 %\begin{abstract}
 % Typesetting values with units requires care to ensure that the
@@ -4405,7 +4407,7 @@ This work consists of the file  siunitx.dtx
 %
 % The usual preliminaries.  
 %    \begin{macrocode}
-\ProvidesExplPackage {siunitx} {2010/11/22} {2.1e}
+\ProvidesExplPackage {siunitx} {2010/11/24} {2.1f}
   {A comprehensive (SI) units package}
 %    \end{macrocode}
 %    
@@ -9920,7 +9922,7 @@ This work consists of the file  siunitx.dtx
           \ProvideDocumentCommand \exp_not:N #1 { o } 
             {
               \group_begin:
-                \exp_not:N \cs_if_free:cF
+                \exp_not:N \cs_if_free:NF
                   \exp_not:c 
                   { l_siunitx_ \token_to_str:N #1 _options_tl }
                   {
@@ -14413,7 +14415,7 @@ This work consists of the file  siunitx.dtx
 %    \end{macrocode}
 %    
 %    \begin{macrocode}
-\ProvidesExplFile {siunitx-version-1.cfg} {2010/11/22} {2.1e} 
+\ProvidesExplFile {siunitx-version-1.cfg} {2010/11/24} {2.1f} 
   {siunitx: Version 1 settings}
 %    \end{macrocode}
 %    
@@ -15694,7 +15696,7 @@ This work consists of the file  siunitx.dtx
 %    \end{macrocode}  
 %    
 %    \begin{macrocode}
-\ProvidesExplFile {siunitx-binary.cfg} {2010/11/22} {2.1e}
+\ProvidesExplFile {siunitx-binary.cfg} {2010/11/24} {2.1f}
   {siunitx: Binary units}
 %    \end{macrocode}
 %    
diff --git a/Master/texmf-dist/tex/latex/siunitx/config/siunitx-binary.cfg b/Master/texmf-dist/tex/latex/siunitx/config/siunitx-binary.cfg
index 8e9b3e14588..1651286f8e1 100644
--- a/Master/texmf-dist/tex/latex/siunitx/config/siunitx-binary.cfg
+++ b/Master/texmf-dist/tex/latex/siunitx/config/siunitx-binary.cfg
@@ -13,7 +13,7 @@
 %% See http://www.latex-project.org/lppl.txt
 %% ---------------------------------------------------------------
 %% 
-\ProvidesExplFile {siunitx-binary.cfg} {2010/11/22} {2.1e}
+\ProvidesExplFile {siunitx-binary.cfg} {2010/11/24} {2.1f}
   {siunitx: Binary units}
 \DeclareBinaryPrefix \kibi { Ki } { 10 }
 \DeclareBinaryPrefix \mebi { Mi } { 20 }
diff --git a/Master/texmf-dist/tex/latex/siunitx/config/siunitx-version-1.cfg b/Master/texmf-dist/tex/latex/siunitx/config/siunitx-version-1.cfg
index 5ac390ee4e9..2d203b33132 100644
--- a/Master/texmf-dist/tex/latex/siunitx/config/siunitx-version-1.cfg
+++ b/Master/texmf-dist/tex/latex/siunitx/config/siunitx-version-1.cfg
@@ -13,7 +13,7 @@
 %% See http://www.latex-project.org/lppl.txt
 %% ---------------------------------------------------------------
 %% 
-\ProvidesExplFile {siunitx-version-1.cfg} {2010/11/22} {2.1e}
+\ProvidesExplFile {siunitx-version-1.cfg} {2010/11/24} {2.1f}
   {siunitx: Version 1 settings}
 \keys_set:nn { siunitx }
   { load-configurations = { abbreviations , binary } }
diff --git a/Master/texmf-dist/tex/latex/siunitx/siunitx.sty b/Master/texmf-dist/tex/latex/siunitx/siunitx.sty
index b86be6e81c7..ab74299888b 100644
--- a/Master/texmf-dist/tex/latex/siunitx/siunitx.sty
+++ b/Master/texmf-dist/tex/latex/siunitx/siunitx.sty
@@ -14,7 +14,7 @@
 %% ---------------------------------------------------------------
 %% 
 \RequirePackage{expl3}
-\ProvidesExplPackage {siunitx} {2010/11/22} {2.1e}
+\ProvidesExplPackage {siunitx} {2010/11/24} {2.1f}
   {A comprehensive (SI) units package}
 \msg_set:nnnn { siunitx } { incompatible-package }
   { Package~'#1'~incompatible. }
@@ -3727,7 +3727,7 @@
           \ProvideDocumentCommand \exp_not:N #1 { o }
             {
               \group_begin:
-                \exp_not:N \cs_if_free:cF
+                \exp_not:N \cs_if_free:NF
                   \exp_not:c
                   { l_siunitx_ \token_to_str:N #1 _options_tl }
                   {