1 files changed, 16 insertions, 3 deletions
diff --git a/Master/texmf-dist/source/latex/base/ltclass.dtx b/Master/texmf-dist/source/latex/base/ltclass.dtx
index ecbcbfff2cf..b1d81c5d6bf 100644
--- a/Master/texmf-dist/source/latex/base/ltclass.dtx
+++ b/Master/texmf-dist/source/latex/base/ltclass.dtx
@@ -33,7 +33,7 @@
 %<*driver>
 % \fi
 \ProvidesFile{ltclass.dtx}
-             [2016/11/09 v1.2b LaTeX Kernel (Class & Package Interface)]
+             [2017/03/08 v1.2c LaTeX Kernel (Class & Package Interface)]
 % \iffalse
 \documentclass{ltxdoc}
 \GetFileInfo{ltclass.dtx}
@@ -631,8 +631,22 @@
 %
 % \changes{v1.1j}{2016/06/20}
 %         {don't declare as \cs{@onlypreamble}}
+% \changes{v1.2c}{2017/03/08}
+%         {add \cs{@parse@version@dash} to support yyyy-mm-dd as well as yyyy/mm/dd }
 %    \begin{macrocode}
-\def\@parse@version#1/#2/#3#4#5\@nil{#1#2#3#4 }
+%</2ekernel>
+%<*2ekernel|isodate>
+\def\@parse@version#1/#2/#3#4#5\@nil{%
+\@parse@version@dash#1-#2-#3#4\@nil
+}
+%    \end{macrocode}
+%
+% The |\if| test here ensures that an argument with no |/|  or |-| produces 0 (actually 00).
+%    \begin{macrocode}
+\def\@parse@version@dash#1-#2-#3#4#5\@nil{%
+  \if\relax#2\relax\else#1\fi#2#3#4 }
+%</2ekernel|isodate>
+%<*2ekernel>
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -794,7 +808,6 @@
 %    \wlog{File: #1 #2}%
 %    \expandafter\xdef\csname ver@#1\endcsname{#2}%
 %  \endgroup}
-%    \end{macrocode}
 %\end{verbatim}
 % \end{macro}
 % \end{macro}