tcolorbox (27nov15)

git-svn-id: svn://tug.org/texlive/trunk@38959 c570f23f-e606-0410-a88d-b1316a301751

27 files changed, 912 insertions, 398 deletions

diff --git a/Master/texmf-dist/doc/latex/tcolorbox/CHANGES b/Master/texmf-dist/doc/latex/tcolorbox/CHANGES
index da216e3163e..7e680d82456 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/CHANGES
+++ b/Master/texmf-dist/doc/latex/tcolorbox/CHANGES
@@ -1,7 +1,7 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -830,3 +830,21 @@ version 3.73 (2015/10/16)
   'before doc body key', 'after doc body key',
   'before doc body', 'after doc body'
 
+version 3.80 (2015/11/27)
+- superfluous and sometimes troublesome \unskip's were removed.
+  Note that this changed the behavior of 'after upper' and 'after lower'.
+  Some user code may need to apply the new 'after upper*' / 'after lower*'
+  options or insert an \unskip.
+- even/odd page testing completely rewritten.
+- some difference formulas were revised.
+- new macros:
+  '\thetcolorboxnumber', '\thetcolorboxpage',
+  '\tcbifoddpage', '\tcbheightfromgroup'
+- new options:
+  'after upper*', 'after lower*',
+  'center', 'flush right', 'flush left',
+  'if odd page', 'if odd page*',
+  'use height from group'
+- library 'xparse':
+  * new macro:    '\tcbsidebyside'
+  * new options:  'sidebyside adapt', 'sidebyside switch'
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/README b/Master/texmf-dist/doc/latex/tcolorbox/README
index 30acc1aadc0..e4e999d65cb 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/README
+++ b/Master/texmf-dist/doc/latex/tcolorbox/README
@@ -1,7 +1,7 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf
index b47e90fb1b2..d559c7d3c56 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.pdf
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex
index 354f8df3b4a..f5c4a4e7175 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox-example.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcolorbox-example.tex: an example for tcolorbox
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex
index 810aaad581c..57a74eb85f2 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.coreoptions.tex
@@ -1321,15 +1321,15 @@ outer arc   & auto   & auto   & auto  & auto  & 0.0pt & 0.0pt \\
 
 
 \clearpage
-\begin{docTcbKey}{toggle left and right}{=\meta{toggle preset}}{default |evenpage|, initially |none|}
+\begin{docTcbKey}[][doc updated=2015-11-13]{toggle left and right}{=\meta{toggle preset}}{default |evenpage|, initially |none|}
   According to the \meta{toggle preset}, the left and the right settings of
   the |tcolorbox| are switched or not. Feasible values are:
   \begin{itemize}
   \item\docValue{none}: no switching.
   \item\docValue{forced}: the values of the left and right rules and spaces are switched.
   \item\docValue{evenpage}: if the page is an even page, the values of the left and
-    right rules and spaces are switched. It is recommended that you use this setting in
-    conjunction with \refKey{/tcb/check odd page}.
+    right rules and spaces are switched. This value also sets
+    \refKey{/tcb/check odd page} to |true|.
   \end{itemize}
 \begin{marker}
 Horizontal bounding box enlargements are not toggled by this option.
@@ -1337,19 +1337,18 @@ They can be toggled independently by \refKey{/tcb/toggle enlargement}.
 For example, \refKey{/tcb/oversize} changes the bounding box.
 \end{marker}
 \begin{dispListing}
-% \usepackage{changepage} for 'check odd page'
 % \usepackage{lipsum}
 % \usetikzlibrary{patterns}
 % \tcbuselibrary{skins,breakable}
 \begin{tcolorbox}[skin=enhancedmiddle,breakable,
-  check odd page,toggle left and right,
+  toggle left and right,
   boxrule=0mm,top=0mm,bottom=0mm,left=1mm,right=1mm,
   rightrule=1cm,colupper=blue!25!black,
   interior style={fill overzoom image=lichtspiel.jpg,fill image opacity=0.25},
   frame style={pattern=crosshatch dots light steel blue},
   overlay={%
-    \ifoddpage\coordinate (X) at ([xshift=-5mm]frame.east);
-         \else\coordinate (X) at ([xshift=5mm]frame.west);\fi
+    \tcbifoddpage{\coordinate (X) at ([xshift=-5mm]frame.east);}
+                 {\coordinate (X) at ([xshift=5mm]frame.west);}
     \fill[shading=ball,ball color=blue!50!white,opacity=0.5] (X) circle (4mm);}]
 \lipsum[1-6]
 \end{tcolorbox}
@@ -1851,7 +1850,7 @@ colframe=red!75!black,colback=white}
 \begin{tcolorbox}[equal height group=B]
   Now, we use another equal height group.
 \end{tcolorbox}%
-\begin{tcolorbox}[equal height group=B]
+\begin{tcolorbox}[equal height group=B,after=]
   \begin{equation*}
     \int\limits_{0}^{1} x^2 = \frac13.
   \end{equation*}
@@ -1900,6 +1899,31 @@ with a listing.
 \end{docTcbKey}
 
 
+\begin{docTcbKey}[][doc new=2015-11-27]{use height from group}{=\meta{id}}{style, no default}
+  Sets the current box to a fixed \refKey{/tcb/height} which is copied from
+  an equal height group with the given \meta{id}. If this height is not
+  available during the current compilation, no fixed height setting is used.\par
+  Note that the natural height of the current box is not considered for
+  computation of the group height. The main application for
+  \refKey{/tcb/use height from group} is that the height can be adapted
+  further by \refKey{/tcb/add to height}.
+
+\begin{dispExample}
+\begin{tcolorbox}[use height from group=C,add to height=-2cm,
+  colframe=blue!75!black,colback=white]
+Height from group 'C' of the previous example, but reduced by 2cm.
+\end{tcolorbox}%
+\end{dispExample}
+\end{docTcbKey}
+
+\enlargethispage*{1cm}
+\begin{docCommand}[doc new=2015-11-27]{tcbheightfromgroup}{\marg{macro}\marg{id}}
+  Saves the height from an equal height group with the given \meta{id}
+  to a \meta{macro}. If this height is not available during the current compilation,
+  \meta{macro} is set to |0pt|.
+\end{docCommand}
+
+
 \clearpage
 \subsection{Box Content Additions}\label{subsec:contentadditions}
 The following options introduce some arbitrary \meta{code} to the content
@@ -1933,6 +1957,7 @@ This is a \textbf{tcolorbox}.
 \end{docTcbKey}
 
 
+\clearpage
 \begin{docTcbKey}{before upper}{=\meta{code}}{no default, initially unset}
   The given \meta{code} is placed \emph{after} the color and font settings
   and \emph{before} the content of the upper part.
@@ -1946,8 +1971,8 @@ This is a \textbf{tcolorbox}.
 \end{dispExample}
 \end{docTcbKey}
 
-\clearpage
-\begin{docTcbKey}{after upper}{=\meta{code}}{no default, initially unset}
+
+\begin{docTcbKey}[][doc updated=2015-11-27]{after upper}{=\meta{code}}{no default, initially unset}
   The given \meta{code} is placed \emph{after} the content of the upper part.
 \begin{dispExample}
 \tcbset{after upper={\par\hfill\textit{Read more next week}},
@@ -1959,7 +1984,23 @@ This is a \textbf{tcolorbox}.
 \end{dispExample}
 \end{docTcbKey}
 
+\begin{docTcbKey}[][doc new=2015-11-27]{after upper*}{=\meta{code}}{no default, initially unset}
+  An |\unskip| and the given \meta{code} is placed \emph{after} the content of the upper part.
+\begin{dispExample}
+\begin{tcolorbox}[before upper=\flqq,after upper*=\frqq,
+  colback=red!5!white,colframe=red!75!black]
+This is a \textbf{tcolorbox}.
+\end{tcolorbox}
+\end{dispExample}
 
+\begin{marker}
+Prior to version 3.80, \refKey{/tcb/after upper} had the functionality
+of \refKey{/tcb/after upper*}.
+\end{marker}
+\end{docTcbKey}
+
+
+\clearpage
 \begin{docTcbKey}{before lower}{=\meta{code}}{no default, initially unset}
   The given \meta{code} is placed \emph{after} the color and font settings
   and \emph{before} the content of the lower part.
@@ -1975,18 +2016,34 @@ This is the lower part.
 \end{docTcbKey}
 
 
-\begin{docTcbKey}{after lower}{=\meta{code}}{no default, initially unset}
+\begin{docTcbKey}[][doc updated=2015-11-27]{after lower}{=\meta{code}}{no default, initially unset}
   The given \meta{code} is placed \emph{after} the content of the lower part.
 \begin{dispExample}
-\tcbset{after lower=\ \textit{This is the end.},
-  colback=red!5!white,colframe=red!75!black}
+\begin{tcolorbox}[before lower=$,after lower=$,
+  colback=red!5!white,colframe=red!75!black]
+This is a \textbf{tcolorbox}.
+\tcblower
+\sin^2(x)+\cos^2(x)=1.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
 
-\begin{tcolorbox}
+
+\begin{docTcbKey}[][doc new=2015-11-27]{after lower*}{=\meta{code}}{no default, initially unset}
+  An |\unskip| and the given \meta{code} is placed \emph{after} the content of the lower part.
+\begin{dispExample}
+\begin{tcolorbox}[after lower*=\ \textit{This is the end.},
+  colback=red!5!white,colframe=red!75!black]
 This is a \textbf{tcolorbox}.
 \tcblower
 This is the lower part.
 \end{tcolorbox}
 \end{dispExample}
+
+\begin{marker}
+Prior to version 3.80, \refKey{/tcb/after lower} had the functionality
+of \refKey{/tcb/after lower*}.
+\end{marker}
 \end{docTcbKey}
 
 
@@ -2431,218 +2488,6 @@ are drawn by the codes given with
 \end{docTcbKey}
 
 
-\clearpage
-\subsection{Side by Side}\label{subsec:sidebyside}
-\begin{marker}
-  Further side by side options for code examples are
-  \refKey{/tcb/listing side text},
-  \refKey{/tcb/text side listing},
-  \refKey{/tcb/listing outside text}, and
-  \refKey{/tcb/text outside listing}.
-\end{marker}
-
-\begin{docTcbKey}{sidebyside}{\colOpt{=true\textbar false}}{default |true|, initially |false|}
-Normally, the upper part and the lower part of the box have their positions
-as their names suggest. If |sidebyside| is set to |true|, the upper part
-is drawn \emph{left-handed} and the lower part is drawn \emph{right-handed}.
-Both parts are drawn together with the geometry settings of the upper part but the
-space is divided horizontally according to the following options.
-Colors, fonts, and box content additions are used individually.
-The resulting box is unbreakable.
-
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
-
-\begin{tcolorbox}[title=My title,sidebyside]
-This is the upper (\textit{left-handed}) part.
-\tcblower
-This is the lower (\textit{right-handed}) part.
-\end{tcolorbox}
-\end{dispExample}
-\end{docTcbKey}
-
-
-\begin{docTcbKey}[][doc updated=2015-02-06]{sidebyside align}{=\meta{alignment}}{no default, initially |center|}
-  Sets the vertical \meta{alignment} for the left-handed and right-handed part.
-  Feasible values are \docValue{center}, \docValue{top}, \docValue{bottom},
-  \docValue{center seam}, \docValue{top seam}, and \docValue{bottom seam}.
-\begin{exdispExample}{sidebyside_align}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,nobeforeafter,
-  left=2mm,right=2mm,sidebyside,sidebyside gap=6mm,width=(\linewidth-2mm)/3}
-
-\begin{tcolorbox}[adjusted title=center,sidebyside align=center]
-This is a text which is too long for one line.
-\tcblower
-This is a short text.
-\end{tcolorbox}\hfill
-\begin{tcolorbox}[adjusted title=top,sidebyside align=top]
-This is a text which is too long for one line.
-\tcblower
-This is a short text.
-\end{tcolorbox}\hfill
-\begin{tcolorbox}[adjusted title=bottom,sidebyside align=bottom]
-This is a text which is too long for one line.
-\tcblower
-This is a short text.
-\end{tcolorbox}
-\end{exdispExample}
-
-\clearpage
-\docValue{center}, \docValue{top}, and \docValue{bottom} are identical
-to the known corresponding |minipage| options. For example, \docValue{top}
-aligns the top lines  of the lefthand and righthand side
-according to their baselines.
-While this is the preferred approach for text content, the result for
-boxed content like tables or images may not be as expected.
-
-For such content, one may use \docValue{center seam}, \docValue{top seam},
-and \docValue{bottom seam}. For example, \docValue{top seam} aligns
-the very top seam of the lefthand and righthand side.
-
-
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
-  size=small,righthand width=4cm,sidebyside,sidebyside gap=6mm,lower separated=false}
-
-\begin{tcolorbox}[adjusted title=center seam,sidebyside align=center seam]
-  This is my description text for the pictures displayed on the righthand side.
-  \tcblower
-  \includegraphics[width=\linewidth/2]{goldshade}%
-  \includegraphics[width=\linewidth/2]{blueshade}
-\end{tcolorbox}
-
-\begin{tcolorbox}[adjusted title=top seam,sidebyside align=top seam]
-  This is my description text for the pictures displayed on the righthand side.
-  \tcblower
-  \includegraphics[width=\linewidth/2]{goldshade}%
-  \includegraphics[width=\linewidth/2]{blueshade}
-\end{tcolorbox}
-
-\begin{tcolorbox}[adjusted title=bottom seam,sidebyside align=bottom seam]
-  This is my description text for the pictures displayed on the righthand side.
-  \tcblower
-  \includegraphics[width=\linewidth/2]{goldshade}%
-  \includegraphics[width=\linewidth/2]{blueshade}
-\end{tcolorbox}
-\end{dispExample}
-
-
-
-\end{docTcbKey}
-
-\clearpage
-\begin{docTcbKey}{sidebyside gap}{=\meta{length}}{no default, initially |10mm|}
-Sets the horizontal distance between the left-handed and right-handed part to
-\meta{length}.
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,nobeforeafter,
-  sidebyside,width=(\linewidth-2mm)/2}
-
-\begin{tcolorbox}[adjusted title=Wide gap,sidebyside gap=30mm]
-This is a text which is too long for one line.
-\tcblower
-This is a short text.
-\end{tcolorbox}\hfill
-\begin{tcolorbox}[adjusted title=Narrow gap,sidebyside gap=1mm]
-This is a text which is too long for one line.
-\tcblower
-This is a short text.
-\end{tcolorbox}
-\end{dispExample}
-\end{docTcbKey}
-
-
-\begin{docTcbKey}{lefthand width}{=\meta{length}}{no default, initially unset}
-Sets the width of the left-handed part to the given \meta{length}.
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
-
-\begin{tcolorbox}[title=My title,sidebyside,lefthand width=3cm]
-This is the upper (\textit{left-handed}) part.
-\tcblower
-This is the lower (\textit{right-handed}) part.
-\end{tcolorbox}
-\end{dispExample}
-\end{docTcbKey}
-
-\enlargethispage*{1cm}
-\begin{docTcbKey}{righthand width}{=\meta{length}}{no default, initially unset}
-Sets the width of the right-handed part to the given \meta{length}.
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
-
-\begin{tcolorbox}[title=My title,sidebyside,righthand width=3cm]
-This is the upper (\textit{left-handed}) part.
-\tcblower
-This is the lower (\textit{right-handed}) part.
-\end{tcolorbox}
-\end{dispExample}
-\end{docTcbKey}
-
-\clearpage
-\begin{docTcbKey}{lefthand ratio}{=\meta{fraction}}{no default, initially |0.5|}
-Sets the width of the left-handed part to the given \meta{fraction} of
-the available space. \meta{fraction} is a value between |0| and |1|.
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
-
-\begin{tcolorbox}[title=My title,sidebyside,lefthand ratio=0.25]
-This is the upper (\textit{left-handed}) part.
-\tcblower
-This is the lower (\textit{right-handed}) part.
-\end{tcolorbox}
-\end{dispExample}
-\end{docTcbKey}
-
-
-\begin{docTcbKey}{righthand ratio}{=\meta{fraction}}{no default, initially |0.5|}
-Sets the width of the right-handed part to the given \meta{fraction} of
-the available space. \meta{fraction} is a value between |0| and |1|.
-\begin{dispExample}
-\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
-
-\begin{tcolorbox}[title=My title,sidebyside,righthand ratio=0.25]
-This is the upper (\textit{left-handed}) part.
-\tcblower
-This is the lower (\textit{right-handed}) part.
-\end{tcolorbox}
-\end{dispExample}
-\end{docTcbKey}
-
-
-\clearpage
-If one side of a side-by-side box should be adapted to the width of
-its content, this width has to be computed beforehand.
-The following example uses a savebox |\mysavebox| to store the picture to determine
-its width.
-
-\begin{dispExample}
-% \tcbuselibrary{skins,xparse}
-% \usepackage{lipsum}
-% \newsavebox\mysavebox  % preamble
-\DeclareTotalTColorBox{\mysidebox}{ O{} +m +m }{
-  bicolor,colback=white,colbacklower=yellow!10,
-  fonttitle=\bfseries,center title,
-  sidebyside,
-  code={\sbox{\mysavebox}{#2}},
-  lefthand width=\wd\mysavebox,
-  drop lifted shadow,
-  #1
-}
-{\usebox{\mysavebox}\tcblower#3}
-
-\mysidebox[title=The Triangle]{%
-  \begin{tikzpicture}
-    \path[fill=red!20,draw=red!50!black]
-      (0,0) node[below]{A} -- (3,1) node[right]{B}
-      -- (1,4) node[above]{C} -- cycle;
-  \end{tikzpicture}%
-}{%
-  \lipsum[1]
-}
-\end{dispExample}
-
-
 
 \clearpage
 \subsection{Embedding into the Surroundings}\label{subsec:surroundings}
@@ -3022,6 +2867,43 @@ This is a \textbf{tcolorbox}.
 \end{docTcbKey}
 
 
+
+\begin{docTcbKey}[][doc new=2015-11-20]{flush left}{}{style, no value}
+  Enlarges the bounding box to the right side to fill the line completely.
+\begin{dispExample}
+\tcbset{colframe=blue!75!black,colback=white}
+
+\begin{tcolorbox}[flush left,width=5cm,enhanced,show bounding box]
+This is a \textbf{tcolorbox}.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+\begin{docTcbKey}[][doc new=2015-11-20]{flush right}{}{style, no value}
+  Enlarges the bounding box to the left side to fill the line completely.
+\begin{dispExample}
+\tcbset{colframe=blue!75!black,colback=white}
+
+\begin{tcolorbox}[flush right,width=5cm,enhanced,show bounding box]
+This is a \textbf{tcolorbox}.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+\begin{docTcbKey}[][doc new=2015-11-20]{center}{}{style, no value}
+  Enlarges the bounding box equally to both sides to fill the line completely.
+\begin{dispExample}
+\tcbset{colframe=blue!75!black,colback=white}
+
+\begin{tcolorbox}[center,width=5cm,enhanced,show bounding box]
+This is a \textbf{tcolorbox}.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+\clearpage
 \begin{docTcbKey}{grow to left by}{=\meta{length}}{no default, initially |0mm|}
   Enlarges the current box width by \meta{length} and
   enlarges (shrinks) the bounding box distance to the left side of the box by
@@ -3058,15 +2940,17 @@ This is a \textbf{tcolorbox}.
 
 
 \clearpage
-\begin{docTcbKey}{toggle enlargement}{=\meta{toggle preset}}{default |evenpage|, initially |none|}
+\begin{docTcbKey}[][doc updated=2015-11-13]{toggle enlargement}{=\meta{toggle preset}}{default |evenpage|, initially |none|}
   According to the \meta{toggle preset}, the left and the right enlargements of
   the bounding box are switched or not. Feasible values are:
   \begin{itemize}
   \item\docValue{none}: no switching.
   \item\docValue{forced}: the values of the left and right enlargement are switched.
   \item\docValue{evenpage}: if the page is an even page, the values of the left and
-    right enlargement are switched. It is recommended that you use this setting in
-    conjunction with \refKey{/tcb/check odd page}.
+    right enlargement are switched. This value also sets
+    \refKey{/tcb/check odd page} to |true|.
+    %It is recommended that you use this setting in
+    %conjunction with \refKey{/tcb/check odd page}.
     %Note that the page number detection may
     %fail in certain cases. For these cases, use the |forced| value.
   \end{itemize}
@@ -3075,7 +2959,6 @@ See \refKey{/tcb/toggle left and right} to toggle geometry settings.
 \end{marker}
 
 \begin{dispExample}
-% \usepackage{changepage} for 'check odd page'
 \tcbset{colframe=blue!75!black,colback=white,
   grow to left by=20mm,grow to right by=-5mm}
 
@@ -3085,22 +2968,20 @@ This is a \textbf{tcolorbox}.
 \begin{tcolorbox}[toggle enlargement=forced]
 This is a \textbf{tcolorbox}.
 \end{tcolorbox}
-\begin{tcolorbox}[toggle enlargement=evenpage,check odd page]
-  This page is an \ifthenelse{\isodd{\thepage}}{odd}{even} page.
+\begin{tcolorbox}[toggle enlargement=evenpage]
+  This page is an \tcbifoddpage{odd}{even} page.
   Therefore, the left and right enlargements
-  \ifthenelse{\isodd{\thepage}}{are not}{are} toggled.
+  \tcbifoddpage{are not}{are} toggled.
 \end{tcolorbox}
 \end{dispExample}
 
 \begin{dispListing}
-% \usepackage{changepage} for 'check odd page'
-\begin{tcolorbox}[colframe=red!60!black,colback=red!15!white,check odd page,
+\begin{tcolorbox}[colframe=red!60!black,colback=red!15!white,
   fonttitle=\bfseries,title=Floating box from \texttt{toggle enlargement},
-  width=\textwidth,grow to right by=2cm,toggle enlargement=evenpage,float=t]
-  This page is an \ifthenelse{\isodd{\thepage}}{odd}{even} page.
-  Therefore, the left and right enlargements
-  \ifthenelse{\isodd{\thepage}}{are not}{are} toggled (with some luck; otherwise
-  use |forced|). This box stretches to the right margin on odd pages and to the left
+  width=\textwidth,grow to right by=2cm,toggle enlargement,float=t]
+  This page is an \tcbifoddpage{odd}{even} page.
+  Therefore, the left and right enlargements \tcbifoddpage{are not}{are} toggled.
+  This box stretches to the right margin on odd pages and to the left
   margin on even pages. The current document is one-sided -- this feature makes
   sense for two-sided documents only.
 \end{tcolorbox}
@@ -3677,38 +3558,145 @@ This issues:\\
 |\addcontentsline|\marg{list}\marg{type}\marg{entry text}
 \end{docTcbKey}
 
+\subsection{Even and Odd Pages}
 
-\begin{docTcbKey}{check odd page}{\colOpt{=true\textbar false}}{default |true|, initially |false|}
-If set to |true|, the even/odd page testing from the package |changepage|
-is applied. The \refKey{/tcb/toggle enlargement} check
-and the  \refKey{/tcb/toggle left and right} check
-will use the |\ifoddpage| macro from this package or another package like
-|ifoddpage|.
-This options is independent from \refKey{/tcb/phantom}.
-Note that you have to include the package |changepage| by hand\footnote{If |changepage| is
-not included, a compilation error will arise.}:
+\begin{marker}
+Also see
+\refKey{/tcb/toggle left and right} and
+\refKey{/tcb/toggle enlargement}
+for further even/odd options.
+\end{marker}
 
-\begin{dispListing}
-\usepackage{changepage}
-\strictpagecheck
-\end{dispListing}
+\begin{docTcbKey}[][doc updated=2015-11-13]{check odd page}{\colOpt{=true\textbar false}}{default |true|, initially |false|}
+If set to |true|, a precise even/odd page testing for the current box
+is applied. This is done by using labels. If a box moves to another page,
+the document has to be compiled twice for the correct settings.
+If set to |false|, even/odd page tests may give wrong results for the first box
+of a page.
 
-\medskip
-The macro |\ifoddpage| can be used inside overlay or watermark code to test if the
-box is on an odd page. This will work also for boxes in a break sequence.
-Note that you cannot use the test inside the normal
-box content.
+\refKey{/tcb/toggle left and right},
+\refKey{/tcb/toggle enlargement}, and
+\refKey{/tcb/if odd page}
+automatically set |check odd page|, but for
+\refCom{tcbifoddpage} this option has to be set explicitely.
+\end{docTcbKey}
+
+\enlargethispage*{1cm}
+\begin{docTcbKey}[][doc new=2015-11-13]{if odd page}{=\marg{odd options}\marg{even options}}{style, no default}
+If the current box is on an odd page, the \meta{odd options} are applied.
+On an even page, the \meta{even options} are applied.
+\refKey{/tcb/check odd page} is automatically set for precise even/odd page testing.
 
 \begin{dispExample}
-% \usepackage{changepage}
-\tcbset{colframe=blue!75!black,colback=white}
+\begin{tcolorbox}[if odd page={colback=yellow!50}{colback=red!50}]
+  This box is colored in yellow on an odd page
+  and is colored in red on an even page.
+\end{tcolorbox}
+\end{dispExample}
+
+\begin{marker}
+If a box is \refKey{/tcb/breakable}, using \refKey{/tcb/if odd page}
+only acts upon the \emph{first} box. If the setting should be
+repeated for every partial box of the break sequence, the option should be
+packed into \refKey{/tcb/extras}. In this case, \refKey{/tcb/check odd page}
+has to be set explicitely! Also see \refKey{/tcb/if odd page*}.
+\end{marker}
+\end{docTcbKey}
+
+\clearpage
+\begin{docTcbKey}[][doc new=2015-11-13]{if odd page*}{=\marg{odd options}\marg{even options}}{style, no default}
+\begin{marker}
+This option needs the \mylib{breakable} library, see \Fullref{sec:breakable}.
+\end{marker}
+For breakable boxes, if the current partial box is on an odd page, the \meta{odd options} are applied.
+On an even page, the \meta{even options} are applied.
+\refKey{/tcb/check odd page} is automatically set for precise even/odd page testing.
+
+In contrast to \refKey{/tcb/if odd page}, \refKey{/tcb/if odd page*} is used
+on \emph{every} partial box of a break sequences and not only on the
+\emph{first} box. Another difference is that \refKey{/tcb/if odd page*}
+is applied quite \emph{late} during option processing, while
+\refKey{/tcb/if odd page} is applied immediately.
+
+\refKey{/tcb/if odd page*} is implemented as \refKey{/tcb/if odd page}
+packed into \refKey{/tcb/extras}.
+
+\begin{dispExample}
+% \tcbuselibrary{breakable}
+\begin{tcolorbox}[breakable,if odd page*={colback=yellow!50}{colback=red!50}]
+  This breakable box is colored in yellow on an odd page
+  and is colored in red on an even page. For every partial box, the
+  test is repeated, i.e. this would give a yellow, red, yellow, red, \ldots\
+  sequence for a long content.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+\enlargethispage*{2cm}
+\begin{docCommand}[doc new=2015-11-13]{tcbifoddpage}{\marg{odd code}\marg{even code}}
+If the current box is on an odd page, the \meta{odd code} is executed.
+On an even page, the \meta{even code} is executed.
+For precise even/odd page testing, the \refKey{/tcb/check odd page} has to be
+set manually inside the box options.
+
+The macro \refCom{tcbifoddpage} can be used inside underlay, overlay, or watermark code to
+test if the box is on an odd page. This will work also for boxes in a break sequence.
+
+The macro can also be used inside the box \textbf{content text}. For unbreakable boxes,
+the correct page test is applied.
+But for \refKey{/tcb/breakable} boxes, \refCom{tcbifoddpage}
+will always give the result for the page of the \emph{first} box inside
+the box \textbf{content text}. If needed, the methods from the packages
+|changepage| or |ifoddpage| could be used here.
+%To mention it again, for overlays, watermarks, etc, \refCom{tcbifoddpage} gives
+%the correct page test.
+
+\begin{dispExample}
+\tcbset{colframe=blue!75!black,colback=white,fonttitle=\bfseries}
 
 \begin{tcolorbox}[enhanced,check odd page,
-  watermark text={\ifoddpage Odd\else Even\fi\ page!}]
+  title={Example for a box on an \tcbifoddpage{odd}{even} page},
+  watermark text={\tcbifoddpage{Odd}{Even} page!}]
 \lipsum[1]
 \end{tcolorbox}
 \end{dispExample}
-\end{docTcbKey}
+\end{docCommand}
+
+
+\clearpage
+\begin{docCommand}[doc new=2015-11-13]{thetcolorboxnumber}{}
+This is a unique identifier (arabic number) for a tcolorbox. It is locally
+defined inside boxes and has no meaning outside. It is used for
+precise even/odd page testing, but may also be valuable for elaborate user
+code.
+
+\begin{dispExample}
+\begin{tcolorbox}[colback=yellow!5,title=Box \thetcolorboxnumber]
+  This box is \thetcolorboxnumber.
+  \tcbox[on line,size=fbox]{This box is \thetcolorboxnumber} and
+  \tcbox[on line,size=fbox]{this box is \thetcolorboxnumber}.
+  This box is \thetcolorboxnumber.
+\end{tcolorbox}
+\end{dispExample}
+\end{docCommand}
+
+
+\begin{docCommand}[doc new=2015-11-13]{thetcolorboxpage}{}
+This macro contains the expanded arabic page number of the current tcolorbox.
+It is locally defined inside boxes and has no meaning outside.
+It is precise only, if \refKey{/tcb/check odd page} was set.
+
+\begin{dispExample}
+\begin{tcolorbox}[colback=yellow!5,check odd page,
+    title=Box on page~\thetcolorboxpage]
+  This box is located on page~\thetcolorboxpage.
+\end{tcolorbox}
+\end{dispExample}
+\end{docCommand}
+
+
+
 
 
 \clearpage
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.listings.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.listings.tex
index e42499f3ba0..58d614c5f43 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.listings.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.listings.tex
@@ -709,7 +709,7 @@ and as compiled text outside the box in the right part of the page.
 Nevertheless, the outside text is treated as \emph{lower} part of the
 |tcolorbox| and can be formatted with all lower part options.
 The space partitioning is done with the side by side options from
-Section \ref{subsec:sidebyside}, see page \pageref{subsec:sidebyside}.
+\Fullref{sec:sidebyside}.
 \begin{dispExample}
 \begin{tcblisting}{colback=red!5!white,colframe=red!75!black,listing outside text}
 This is a \LaTeX\ example.
@@ -724,7 +724,7 @@ and as compiled text outside the box in the left part of the page.
 Nevertheless, the outside text is treated as \emph{lower} part of the
 |tcolorbox| and can be formatted with all lower part options.
 The space partitioning is done with the side by side options from
-Section \ref{subsec:sidebyside}, see page \pageref{subsec:sidebyside}.
+\Fullref{sec:sidebyside}.
 \begin{dispExample}
 \begin{tcblisting}{colback=red!5!white,colframe=red!75!black,text outside listing}
 This is a \LaTeX\ example.
@@ -765,7 +765,7 @@ and a given comment outside the box in the right part of the page.
 Nevertheless, the outside text is treated as \emph{lower} part of the
 |tcolorbox| and can be formatted with all lower part options.
 The space partitioning is done with the side by side options from
-Section \ref{subsec:sidebyside}, see page \pageref{subsec:sidebyside}.
+\Fullref{sec:sidebyside}.
 \begin{dispExample}
 \begin{tcblisting}{colback=red!5!white,colframe=red!75!black,listing outside comment,
   righthand width=1.5cm,image comment={width=1.5cm}{example-image-a.pdf}}
@@ -781,7 +781,7 @@ and a given comment outside the box in the left part of the page.
 Nevertheless, the outside text is treated as \emph{lower} part of the
 |tcolorbox| and can be formatted with all lower part options.
 The space partitioning is done with the side by side options from
-Section \ref{subsec:sidebyside}, see page \pageref{subsec:sidebyside}.
+\Fullref{sec:sidebyside}.
 \begin{dispExample}
 \begin{tcblisting}{colback=red!5!white,colframe=red!75!black,comment outside listing,
   lefthand width=1.5cm,image comment={width=1.5cm}{example-image-a.pdf}}
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex
index 4356d662e95..8e54c49b658 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.raster.tex
@@ -160,8 +160,6 @@ This leads to a very compact syntax.
 \end{tcbitemize}
 \end{dispExample}
 
-\bigskip
-
 \begin{marker}
 \refEnv{tcbitemize} has more restrictions than \refEnv{tcbraster}.
 Especially, the \refKey{/tcb/capture} mode has to be \docValue{minipage}.
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty
index 0ee04a9db88..5238fe00356 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.s_main.sty
@@ -39,9 +39,6 @@
 
 %\RequirePackage[cache]{minted}% minted 2.0
 
-\RequirePackage{changepage}
-\strictpagecheck
-
 \providecommand{\tcbpkgprefix}{}
 \RequirePackage{\tcbpkgprefix tcolorbox}
 
@@ -128,7 +125,8 @@
     endtcolorbox,endtcbverbatimwrite,newtcolorbox,newtcbox,newtcboxfit,tcbusetemp,tcbtitle,tcbtitletext,
     tcblower,tcbox,tcboxfit,tcbset,tcbuselibrary,tcolorbox,tcbverbatimwrite,tcbsetforeverylayer,tcbsubtitle,
     tcolorboxenvironment,tcblistof,tcbstartrecording,tcbrecord,tcbstoprecording,tcbinputrecords,
-    tcbpatcharcangular,tcbpatcharcround,
+    tcbpatcharcangular,tcbpatcharcround,tcbifoddpage,thetcolorboxnumber,thetcolorboxpage,
+    tcbheightfromgroup,
     % listings
     endtcblisting,newtcblisting,newtcbinputlisting,
     tcblisting,tcbinputlisting,tcbuselistingtext,tcbuselistinglisting,tcbusetemplisting,
@@ -159,7 +157,7 @@
     DeclareTCBInputListing,NewTCBInputListing,RenewTCBInputListing,ProvideTCBInputListing,
     DeclareTCBoxFit,NewTCBoxFit,RenewTCBoxFit,ProvideTCBoxFit,
     DeclareTotalTCBoxFit,NewTotalTCBoxFit,RenewTotalTCBoxFit,ProvideTotalTCBoxFit,
-    tcboxverb,
+    tcbsidebyside,tcboxverb,
     % externalization
     tcbEXTERNALIZE,tcbifexternal,newtcbexternalizeenvironment,
     renewtcbexternalizeenvironment,extcolorbox,extikzpicture,
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.sidebyside.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.sidebyside.tex
new file mode 100644
index 00000000000..b01c299e0c3
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.doc.sidebyside.tex
@@ -0,0 +1,408 @@
+% !TeX root = tcolorbox.tex
+% include file of tcolorbox.tex (manual of the LaTeX package tcolorbox)
+\clearpage
+\section{Side by Side}\label{sec:sidebyside}%
+\tcbset{external/prefix=external/sidebyside_}%
+
+A \emph{side by side} box is a special \refEnv{tcolorbox} where
+the upper and lower part of the box are set side by side.
+All boxes of this kind are unbreakable.
+
+\begin{marker}
+  Further side by side options for code examples are
+  \refKey{/tcb/listing side text},
+  \refKey{/tcb/text side listing},
+  \refKey{/tcb/listing outside text}, and
+  \refKey{/tcb/text outside listing}.
+\end{marker}
+
+\subsection{Basic Settings}\label{subsec:sidebyside_basic}
+
+\begin{docTcbKey}{sidebyside}{\colOpt{=true\textbar false}}{default |true|, initially |false|}
+Normally, the upper part and the lower part of the box have their positions
+as their names suggest. If |sidebyside| is set to |true|, the upper part
+is drawn \emph{left-handed} and the lower part is drawn \emph{right-handed}.
+Both parts are drawn together with the geometry settings of the upper part but the
+space is divided horizontally according to the following options.
+Colors, fonts, and box content additions are used individually.
+The resulting box is unbreakable.
+
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
+
+\begin{tcolorbox}[title=My title,sidebyside]
+  This is the upper (\textit{left-handed}) part.
+\tcblower
+  This is the lower (\textit{right-handed}) part.
+\end{tcolorbox}
+\end{dispExample}
+
+
+\begin{dispExample}
+% \usepackage{lipsum}
+% \tcbuselibrary{skins}
+\begin{tcolorbox}[bicolor,sidebyside,righthand width=3cm,
+    sharp corners,boxrule=.4pt,colback=green!5,colbacklower=green!50!black!50]
+  \lipsum[2]
+\tcblower
+  \includegraphics[width=\linewidth]{goldshade}%
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+
+\clearpage
+\begin{docTcbKey}[][doc updated=2015-02-06]{sidebyside align}{=\meta{alignment}}{no default, initially |center|}
+  Sets the vertical \meta{alignment} for the left-handed and right-handed part.
+
+  Feasible values for \meta{alignment} are:
+  \begin{itemize}
+  \item\docValue{center}: identical to |minipage| option |c|.
+  \item\docValue{top}:    identical to |minipage| option |t| (aligns the top
+      lines of the left-handed and right-handed side according to their baselines).
+  \item\docValue{bottom}: identical to |minipage| option |b| (aligns the bottom
+      lines of the left-handed and right-handed side according to their baselines).
+  \item\docValue{center seam}: aligns the center of the left-handed and right-handed side.
+  \item\docValue{top seam}:    aligns the very top seam of the left-handed and right-handed side.
+  \item\docValue{bottom seam}: aligns the very bottom seam of the left-handed and right-handed side.
+  \end{itemize}
+
+\begin{exdispExample}{sidebyside_align}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,nobeforeafter,
+  left=2mm,right=2mm,sidebyside,sidebyside gap=6mm,width=(\linewidth-2mm)/3}
+
+\begin{tcolorbox}[adjusted title=center,sidebyside align=center]
+This is a text which is too long for one line.
+\tcblower
+This is a short text.
+\end{tcolorbox}\hfill
+\begin{tcolorbox}[adjusted title=top,sidebyside align=top]
+This is a text which is too long for one line.
+\tcblower
+This is a short text.
+\end{tcolorbox}\hfill
+\begin{tcolorbox}[adjusted title=bottom,sidebyside align=bottom]
+This is a text which is too long for one line.
+\tcblower
+This is a short text.
+\end{tcolorbox}
+\end{exdispExample}
+
+
+\docValue{center}, \docValue{top}, and \docValue{bottom} are identical
+to the known corresponding |minipage| options.
+While this is the preferred approach for text content, the result for
+boxed content like tables or images may not be as expected.
+
+For such content, one may use \docValue{center seam}, \docValue{top seam},
+and \docValue{bottom seam}. For example, \docValue{top seam} aligns
+the very top seam of the left-handed and right-handed side.
+
+
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
+  size=small,righthand width=4cm,sidebyside,sidebyside gap=6mm,lower separated=false}
+
+\begin{tcolorbox}[adjusted title=center seam,sidebyside align=center seam]
+  This is my description text for the pictures displayed on the right-handed side.
+  \tcblower
+  \includegraphics[width=\linewidth/2]{goldshade}%
+  \includegraphics[width=\linewidth/2]{blueshade}
+\end{tcolorbox}
+
+\begin{tcolorbox}[adjusted title=top seam,sidebyside align=top seam]
+  This is my description text for the pictures displayed on the right-handed side.
+  \tcblower
+  \includegraphics[width=\linewidth/2]{goldshade}%
+  \includegraphics[width=\linewidth/2]{blueshade}
+\end{tcolorbox}
+
+\begin{tcolorbox}[adjusted title=bottom seam,sidebyside align=bottom seam]
+  This is my description text for the pictures displayed on the right-handed side.
+  \tcblower
+  \includegraphics[width=\linewidth/2]{goldshade}%
+  \includegraphics[width=\linewidth/2]{blueshade}
+\end{tcolorbox}
+\end{dispExample}
+
+
+
+\end{docTcbKey}
+
+\clearpage
+\begin{docTcbKey}{sidebyside gap}{=\meta{length}}{no default, initially |10mm|}
+Sets the horizontal distance between the left-handed and right-handed part to
+\meta{length}.
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,nobeforeafter,
+  sidebyside,width=(\linewidth-2mm)/2}
+
+\begin{tcolorbox}[adjusted title=Wide gap,sidebyside gap=30mm]
+This is a text which is too long for one line.
+\tcblower
+This is a short text.
+\end{tcolorbox}\hfill
+\begin{tcolorbox}[adjusted title=Narrow gap,sidebyside gap=1mm]
+This is a text which is too long for one line.
+\tcblower
+This is a short text.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+\begin{docTcbKey}{lefthand width}{=\meta{length}}{no default, initially unset}
+Sets the width of the left-handed part to the given \meta{length}.
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
+
+\begin{tcolorbox}[title=My title,sidebyside,lefthand width=3cm]
+This is the upper (\textit{left-handed}) part.
+\tcblower
+This is the lower (\textit{right-handed}) part.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+\enlargethispage*{1cm}
+\begin{docTcbKey}{righthand width}{=\meta{length}}{no default, initially unset}
+Sets the width of the right-handed part to the given \meta{length}.
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
+
+\begin{tcolorbox}[title=My title,sidebyside,righthand width=3cm]
+This is the upper (\textit{left-handed}) part.
+\tcblower
+This is the lower (\textit{right-handed}) part.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+\clearpage
+\begin{docTcbKey}{lefthand ratio}{=\meta{fraction}}{no default, initially |0.5|}
+Sets the width of the left-handed part to the given \meta{fraction} of
+the available space. \meta{fraction} is a value between |0| and |1|.
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
+
+\begin{tcolorbox}[title=My title,sidebyside,lefthand ratio=0.25]
+This is the upper (\textit{left-handed}) part.
+\tcblower
+This is the lower (\textit{right-handed}) part.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+\begin{docTcbKey}{righthand ratio}{=\meta{fraction}}{no default, initially |0.5|}
+Sets the width of the right-handed part to the given \meta{fraction} of
+the available space. \meta{fraction} is a value between |0| and |1|.
+\begin{dispExample}
+\tcbset{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries}
+
+\begin{tcolorbox}[title=My title,sidebyside,righthand ratio=0.25]
+This is the upper (\textit{left-handed}) part.
+\tcblower
+This is the lower (\textit{right-handed}) part.
+\end{tcolorbox}
+\end{dispExample}
+\end{docTcbKey}
+
+
+\clearpage
+If one side of a side-by-side box should be adapted to the width of
+its content, this width has to be computed beforehand.
+The following example uses a savebox |\mysavebox| to store the picture to determine
+its width. A more convenient way to handle this task is to use the
+methods from \Fullref{subsec:sidebyside_xparse}.
+
+\begin{dispExample}
+% \tcbuselibrary{skins,xparse}
+% \usepackage{lipsum}
+% \newsavebox\mysavebox  % preamble
+\DeclareTotalTColorBox{\mysidebox}{ O{} +m +m }{
+  bicolor,colback=white,colbacklower=yellow!10,
+  fonttitle=\bfseries,center title,
+  sidebyside,
+  code={\sbox{\mysavebox}{#2}},
+  lefthand width=\wd\mysavebox,
+  drop lifted shadow,
+  #1
+}
+{\usebox{\mysavebox}\tcblower#3}
+
+\mysidebox[title=The Triangle]{%
+  \begin{tikzpicture}
+    \path[fill=red!20,draw=red!50!black]
+      (0,0) node[below]{A} -- (3,1) node[right]{B}
+      -- (1,4) node[above]{C} -- cycle;
+  \end{tikzpicture}%
+}{%
+  \lipsum[1]
+}
+\end{dispExample}
+
+
+\clearpage
+\subsection{Advanced Settings from the \mylib{xparse} Library}\label{subsec:sidebyside_xparse}
+
+\begin{marker}
+All following macros and options need the \mylib{xparse} library to be
+loaded, see \Fullref{sec:xparse}.
+\end{marker}
+
+
+\begin{docCommand}[doc new=2015-11-20]{tcbsidebyside}{\oarg{options}\marg{left-handed content}\marg{right-handed content}}
+Creates a colored box using more or less arbitrary \meta{options} for a \refEnv{tcolorbox}.
+The \refKey{/tcb/sidebyside} option is set to |true| and the
+\meta{left-handed content} and \meta{right-handed content}
+is filled into the box appropriately.
+The resulting box is unbreakable.
+
+\refCom{tcbsidebyside} is not only a shortcut for using
+a normal \refEnv{tcolorbox} with \refKey{/tcb/sidebyside}, but allows
+setting further options like \refKey{/tcb/sidebyside adapt}
+and \refKey{/tcb/sidebyside switch}.
+
+
+\begin{dispExample}
+% \tcbuselibrary{skins,xparse}
+% \usepackage{lipsum}
+\tcbsidebyside[title=The Triangle,
+  sidebyside adapt=left,
+  bicolor,colback=white,colbacklower=yellow!10,
+  fonttitle=\bfseries,center title,drop lifted shadow,
+]{%
+  \begin{tikzpicture}
+    \path[fill=red!20,draw=red!50!black]
+      (0,0) node[below]{A} -- (3,1) node[right]{B}
+      -- (1,4) node[above]{C} -- cycle;
+  \end{tikzpicture}%
+}{%
+  \lipsum[1]
+}
+\end{dispExample}
+\end{docCommand}
+
+
+\clearpage
+\begin{docTcbKey}[][doc new=2015-11-20]{sidebyside adapt}{=\meta{side(s)}}{no default, initially |none|}
+The option allows the left-handed and/or right-handed side to determine the
+dimensions of the box. This option is only valid inside \refCom{tcbsidebyside}.
+
+Feasible values for \meta{side(s)} are:
+\begin{itemize}
+\item\docValue{none}: no measurement of left-handed and right-handed side.
+\item\docValue{left}:
+  the actual width of the left-handed content is used to set \refKey{/tcb/lefthand width}.
+\item\docValue{right}:
+  the actual width of the right-handed content is used to set \refKey{/tcb/righthand width}.
+\item\docValue{both}:
+  the actual width of the left-handed and right-handed content is used to set
+  \refKey{/tcb/lefthand width}, \refKey{/tcb/righthand width}, and
+  the overall \refKey{/tcb/width}.
+\end{itemize}
+
+\begin{dispExample}
+% \tcbuselibrary{skins,xparse}
+\tcbsidebyside[sidebyside adapt=left,
+  title=Very important table,
+  beamer,colframe=blue!50!black,colback=blue!10,
+  lower separated=false,sidebyside gap=5mm
+]{%
+  \begin{tabular}{|l|c|r|}\hline
+    left & center & right\\\hline
+    A & B & C\\\hline
+    D & E & F\\\hline
+  \end{tabular}
+}{%
+  This table contains the most important figures for
+  all future actions. You may notice that B follows A,
+  C follows B, and so on.
+}
+\end{dispExample}
+
+
+
+\begin{dispExample}
+% \tcbuselibrary{skins,xparse}
+\tcbsidebyside[sidebyside adapt=right,
+  blanker,sidebyside gap=5mm
+]{%
+  \lipsum[2]
+}{%
+\begin{tikzpicture}
+  \path[fill=yellow,draw=yellow!75!red] (0,0) circle (1cm);
+  \fill[red] (45:5mm) circle (1mm);
+  \fill[red] (135:5mm) circle (1mm);
+  \draw[line width=1mm,red] (215:5mm) arc (215:325:5mm);
+\end{tikzpicture}
+}
+\end{dispExample}
+
+
+\begin{dispExample}
+% \tcbuselibrary{skins,xparse}
+\tcbsidebyside[sidebyside adapt=both,
+  enhanced,center,
+  title=Both sides adapted,
+  attach boxed title to top center={yshift=-2mm},
+  coltitle=black,boxed title style={colback=red!25},
+  segmentation style=solid,colback=red!5,colframe=red!50
+]{%
+  \begin{tabular}{|l|c|r|}\hline
+    left & center & right\\\hline
+    A & B & C\\\hline
+    D & E & F\\\hline
+  \end{tabular}
+}{%
+\begin{tikzpicture}
+  \path[fill=yellow,draw=yellow!75!red] (0,0) circle (1cm);
+  \fill[red] (45:5mm) circle (1mm);
+  \fill[red] (135:5mm) circle (1mm);
+  \draw[line width=1mm,red] (215:5mm) arc (215:325:5mm);
+\end{tikzpicture}
+}
+\end{dispExample}
+
+\end{docTcbKey}
+
+
+\clearpage
+\begin{docTcbKey}[][doc new=2015-11-20]{sidebyside switch}{\colOpt{=true\textbar false}}{default |true|, initially |false|}
+If set to |true|, the
+\meta{left-handed content} and \meta{right-handed content}
+of \refCom{tcbsidebyside} are switched.
+Obviously, this option is only valid inside \refCom{tcbsidebyside}.
+
+The side switching can be made even/odd page sensitive, if used inside
+\refKey{/tcb/if odd page}.
+
+\begin{dispExample}
+% \tcbuselibrary{skins,xparse}
+\tcbsidebyside{Left}{Right}
+
+\tcbsidebyside[sidebyside switch]{Left}{Right}
+
+\tcbsidebyside[title=Very important table,
+  if odd page={sidebyside switch,sidebyside adapt=right,flushright title}%
+              {sidebyside adapt=left},
+  beamer,colframe=blue!50!black,colback=blue!10,
+  lower separated=false,sidebyside gap=5mm
+]{%
+  \begin{tabular}{|l|c|r|}\hline
+    left & center & right\\\hline
+    A & B & C\\\hline
+    D & E & F\\\hline
+  \end{tabular}
+}{%
+  This table contains the most important figures for
+  all future actions. You may notice that B follows A,
+  C follows B, and so on.
+}
+\end{dispExample}
+
+
+\end{docTcbKey}
+
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf
index 3ef4988d062..cc4559e9c78 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.pdf
diff --git a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex
index 015a788d07d..44e1db33256 100644
--- a/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex
+++ b/Master/texmf-dist/doc/latex/tcolorbox/tcolorbox.tex
@@ -1,9 +1,9 @@
 % \LaTeX-Main\
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcolorbox.tex: Manual
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -35,8 +35,8 @@
 \setlength{\bibitemsep}{\smallskipamount}
 \addbibresource{tcolorbox.doc.bib}
 
-\def\version{3.73}%
-\def\datum{2015/10/16}%
+\def\version{3.80}%
+\def\datum{2015/11/27}%
 \makeindex
 
 \hypersetup{
@@ -49,7 +49,7 @@
 \usepackage{pgfplots}
 
 %\tcbset{draftmode}
-%\includeonly{tcolorbox.doc.listings}
+%\includeonly{tcolorbox.doc.sidebyside}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{document}
@@ -59,6 +59,7 @@
 \include{tcolorbox.doc.coremacros}
 \include{tcolorbox.doc.coreoptions}
 \include{tcolorbox.doc.initoptions}
+\include{tcolorbox.doc.sidebyside}
 \include{tcolorbox.doc.verbatim}
 \include{tcolorbox.doc.recording}
 \include{tcolorbox.doc.technical}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
index 0a9ff5f4d43..51647e2965c 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbbreakable.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbbreakable.code.tex: Code for breakable colorboxes
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \let\tcb@parboxrestore@true=\tcb@parboxrestore
 \let\tcb@parboxrestore@false\tcb@parbox@false@settings
@@ -87,7 +87,6 @@
 }
 
 \def\endtcb@vbox{%
-  \unskip%
   \par%
   \unskip%
   \ifvoid\@mpfootins\else%
@@ -594,10 +593,21 @@
   \fi%
 }
 
-
-\def\tcb@split@USL{%
+\def\tcb@nextbreakpart{%
   \stepcounter{tcbbreakpart}%
+  \tcb@count@boxes%
+  \iftcb@checkpage%
+    \tcb@phantom@savepage%
+    \tcb@hasPhantomtrue%
+    \sbox\tcb@phantombox{\kvtcb@phantom}%
+    \let\kvtcb@phantom\@empty%
+  \fi%
   \tcb@following@title%
+}
+
+
+\def\tcb@split@USL{%
+  \tcb@nextbreakpart%
   \tcb@comp@h@page%
   \tcb@defToTotalHeight\tcb@h@upper{\tcb@totalupperbox}%
   \tcbdimto\tcb@h@total{\tcb@h@padding@last+\tcb@h@padtitle+\tcb@h@upper+\tcb@h@segment+\tcb@h@lower}%
@@ -663,8 +673,7 @@
 
 
 \def\tcb@split@SL{%
-  \stepcounter{tcbbreakpart}%
-  \tcb@following@title%
+  \tcb@nextbreakpart%
   \tcb@comp@h@page%
   \let\tcb@h@upper=\tcb@zpt%
   \tcb@defToTotalHeight\tcb@h@lower{\tcb@totallowerbox}%
@@ -693,8 +702,7 @@
 
 
 \def\tcb@split@L{%
-  \stepcounter{tcbbreakpart}%
-  \tcb@following@title%
+  \tcb@nextbreakpart%
   \tcb@comp@h@page%
   \let\tcb@h@upper=\tcb@zpt%
   \tcb@defToTotalHeight\tcb@h@lower{\tcb@totallowerbox}%
@@ -940,6 +948,7 @@
   no extras middle/.code={\let\tcb@extras@middle\@empty},%
   no extras last/.code={\let\tcb@extras@last\@empty},%
   no extras/.code={\let\tcb@extras@unbroken\@empty\let\tcb@extras@first\@empty\let\tcb@extras@middle\@empty\let\tcb@extras@last\@empty},%
+  if odd page*/.style 2 args={check odd page,extras={if odd page={#1}{#2}}},%
 }
 
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
index afb70b05f3b..abd5dfb6e8b 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbdocumentation.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbdocumentation.code.tex: Code for LaTeX documentations
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \tcbuselibrary{listings,skins,xparse,external}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex
index 1f817d7beba..c196548ff76 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbexternal.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbexternal.code.tex: Code for externalization
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 {
 \catcode`\"=12
@@ -197,7 +197,7 @@
 \long\def\new@tcb@externalizetcolorbox#1#2#3#4{%
   \new@tcb@externalizeenvironment{#1}{#2}%
     {preamble tcbset={force nobeforeafter},#3}%
-    {\tcb@apply@box@options{#4}\tcb@set@normal@unbroken@beforeafter\tcb@before@unbroken}%
+    {\tcb@layer@pushup\tcb@apply@box@options{#4}\tcb@set@normal@unbroken@beforeafter\tcb@before@unbroken}%
     {\tcb@after@unbroken}%
 }
 
@@ -256,7 +256,7 @@
   },
   minipage/.code={%
     \appto\tcbexternal@out@begin{\immediate\write\tcb@out{\string\begin{minipage}{\the\dimexpr#1\relax}\string\ignorespaces\@percentchar}}%
-    \preto\tcbexternal@out@end{\immediate\write\tcb@out{\string\unskip\string\end{minipage}\@percentchar}}%
+    \preto\tcbexternal@out@end{\immediate\write\tcb@out{\string\end{minipage}\@percentchar}}%
   },
   minipage/.default=\linewidth,
   %
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
index 58565f323ae..82eb542c73f 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbfitting.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbfitting.code.tex: Code for fit boxes
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \newdimen\tcbfitdim
 \newdimen\tcb@lowerfitdim
@@ -256,7 +256,8 @@
     \tcb@set@color{tcbcol@upper}%
     \begin{tcb@savebox}{\tcb@upperbox}{##1}%
       \kvtcb@fontupper\fontsize{\tcbfitdim}{\tcb@fit@@line}\selectfont%
-      \kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\unskip\kvtcb@after@upper%
+%      \kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\unskip\kvtcb@after@upper%
+      \kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\kvtcb@after@upper%
     \end{tcb@savebox}%
     \tcb@reset@color%
     \advance\count@ 1\relax%
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex
index f4e80932675..04549bd4554 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbhooks.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbhooks.code.tex: Code for adding hooks
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \tcbset{%
   before upper app/.code={\appto\kvtcb@before@upper{#1}},%
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex
index 8923e27de03..cdfbebbdff2 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcblistings.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcblistings.code.tex: Code for colorboxes with listings
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{listings}[2007/02/22]
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex
index 4e5cde12d15..d6d296c9521 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingscore.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcblistingscode.code.tex: Auxiliary code for colorboxes with listings
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{pdftexcmds}
 
@@ -42,7 +42,8 @@
 \newenvironment{tcb@lower@outside}[1]{%
   \tcbset{savedelimiter=tcb@lower@outside}\tcb@minipage{#1}%
   \color{tcbcol@lower}\kvtcb@fontlower\kvtcb@halignlower\kvtcb@before@lower\ignorespaces}%
-  {\unskip\kvtcb@after@lower\endminipage}
+%  {\unskip\kvtcb@after@lower\endminipage}
+  {\kvtcb@after@lower\endminipage}
 
 \def\tcb@use@listing@other@reset{%
   \tcbset{every box on layer 1/.style={reset,every box}}%
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
index 1a07d852cc0..81cf7837dd7 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcblistingsutf8.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcblistingsutf8.code.tex: Code for colorboxes with listings in UTF-8
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{listingsutf8}[2011/11/10]
 \tcbuselibrary{listings}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex
index b9735ea5fae..40a2828956b 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbmagazine.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbmagazine.code.tex: Code for box sets and magazine styles
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \tcbuselibrary{breakable}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex
index 3bae53fb3a9..c02b6fb15c7 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbminted.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbminted.code.tex: Code for colorboxes with listings
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{minted}[2011/09/17]
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
index 7e4e2f08733..3c097718a3b 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbraster.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbskinsjigsaw.code.tex: Code for colorboxes with different skins
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \newcounter{tcbrastercolumn}
 \newcounter{tcbrasterrow}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
index 70580b2eb81..ee765fe33ac 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbskins.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbskins.code.tex: Code for colorboxes with different skins
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{tikz}[2010/10/13]
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
index edc382b4a2b..98ec28d47c4 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbskinsjigsaw.code.tex
@@ -1,4 +1,4 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbskinsjigsaw.code.tex: Code for colorboxes with different skins
 %%
 %% -------------------------------------------------------------------------------------------
@@ -17,7 +17,7 @@
 %%
 %% This work consists of all files listed in README
 %%
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \tcbuselibrary{skins}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex
index dd4726b4811..3365d806cbd 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbtheorems.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbtheorems.code.tex: Code for theorems in colorboxes
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{amsmath}
 
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex b/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
index 775d526581d..9da5627107d 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcbxparse.code.tex
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcbxparse.code.tex: Code for xparse features
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,7 +18,7 @@
 %% This work consists of all files listed in README
 %%
 %\makeatletter
-\tcb@set@library@version{3.73}
+\tcb@set@library@version{3.80}
 
 \RequirePackage{xparse}[2013/12/31]
 
@@ -224,3 +224,65 @@
   \let\tcb@process@newtcolorbox@continue\tcb@New@TCBInputListing%
   \tcb@process@newcommand}
 
+
+%-- sidebyside --
+
+\def\tcb@sbs@content@none{\tcb@sbs@text@left\tcblower\tcb@sbs@text@right}
+\def\tcb@sbs@content@left{\box\tcb@upperbox\tcblower\tcb@sbs@text@right}
+\def\tcb@sbs@content@right{\tcb@sbs@text@left\tcblower\box\tcb@lowerbox}
+\def\tcb@sbs@content@both{\box\tcb@upperbox\tcblower\box\tcb@lowerbox}
+
+\tcbset{%
+  sidebyside adapt/.is choice,
+  sidebyside adapt/none/.style={%
+    sidebyside@adapt@process/.style={%
+      code={\let\tcb@sbs@content\tcb@sbs@content@none},
+    }%
+  },
+  sidebyside adapt/left/.style={%
+    sidebyside@adapt@process/.style={%
+      code={\sbox{\tcb@upperbox}{\tcb@sbs@text@left}\let\tcb@sbs@content\tcb@sbs@content@left},
+      lefthand width=\wd\tcb@upperbox,
+    }%
+  },
+  sidebyside adapt/right/.style={%
+    sidebyside@adapt@process/.style={%
+      code={\sbox{\tcb@lowerbox}{\tcb@sbs@text@right}\let\tcb@sbs@content\tcb@sbs@content@right},
+      righthand width=\wd\tcb@lowerbox,
+    }%
+  },
+  sidebyside adapt/both/.style={%
+    sidebyside@adapt@process/.style={%
+      code={\sbox{\tcb@upperbox}{\tcb@sbs@text@left}\sbox{\tcb@lowerbox}{\tcb@sbs@text@right}\let\tcb@sbs@content\tcb@sbs@content@both},
+      text width=\wd\tcb@upperbox+\kvtcb@sbs@gap+\wd\tcb@lowerbox,
+      lefthand width=\wd\tcb@upperbox,
+    }%
+  },
+  %
+  sidebyside switch/.is choice,
+  sidebyside switch/true/.style={%
+    sidebyside@switch/.code={%
+      \tcb@swap{\tcb@sbs@text@left}{\tcb@sbs@text@right}
+    }%
+  },
+  sidebyside switch/false/.style={%
+    sidebyside@switch/.style=%
+  },
+  sidebyside switch/.default=true
+}
+
+
+\DeclareTotalTColorBox{\tcbsidebyside}{ +O{} +m +m }{%
+  code={\long\def\tcb@sbs@text@left{#2}\long\def\tcb@sbs@text@right{#3}},%
+  #1,%
+  sidebyside,%
+  sidebyside@switch,sidebyside@adapt@process%
+}{\tcb@sbs@content}
+
+
+\tcbset{%
+  reset@xparse/.style={%
+    sidebyside adapt=none,sidebyside switch=false,%
+  },
+  initialize@reset=reset@xparse,
+}
diff --git a/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty b/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty
index ede4f486dc1..7462c504629 100644
--- a/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty
+++ b/Master/texmf-dist/tex/latex/tcolorbox/tcolorbox.sty
@@ -1,8 +1,8 @@
-%% The LaTeX package tcolorbox - version 3.73 (2015/10/16)
+%% The LaTeX package tcolorbox - version 3.80 (2015/11/27)
 %% tcolorbox.sty: Text color boxes
 %%
 %% -------------------------------------------------------------------------------------------
-%% Copyright (c) 2006-2014 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
+%% Copyright (c) 2006-2015 by Prof. Dr. Dr. Thomas F. Sturm <thomas dot sturm at unibw dot de>
 %% -------------------------------------------------------------------------------------------
 %%
 %% This work may be distributed and/or modified under the
@@ -18,8 +18,8 @@
 %% This work consists of all files listed in README
 %%
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{tcolorbox}[2015/10/16 version 3.73 text color boxes]
-\def\tcb@version{3.73}
+\ProvidesPackage{tcolorbox}[2015/11/27 version 3.80 text color boxes]
+\def\tcb@version{3.80}
 
 \RequirePackage{pgf}[2008/01/15]
 \RequirePackage{verbatim}[2003/08/22]
@@ -39,6 +39,7 @@
 \newif\iftcb@titlefilled
 \newif\iftcb@fixedheight
 \newif\iftcb@ignorenobreak
+\newif\iftcb@checkpage
 
 \newbox\tcb@titlebox
 \newbox\tcb@upperbox
@@ -47,6 +48,7 @@
 
 \newcounter{tcbbreakpart}
 \newcounter{tcblayer}
+\newcount\tcolorbox@number
 
 \def\tcb@warning#1{\PackageWarning{tcolorbox}{#1}}
 \def\tcb@error#1#2{\PackageError{tcolorbox}{#1}{#2}}
@@ -116,7 +118,7 @@
 
 \def\tcb@set@embed@tcbox#1{%
   \long\def\tcb@embed@tcbox##1{%
-    \tcbdimto\tcb@w@upper{\kvtcb@width-\kvtcb@left@rule-\kvtcb@leftupper-\kvtcb@boxsep*2-\kvtcb@rightupper-\kvtcb@right@rule}%
+    \tcbdimto\tcb@w@upper{\kvtcb@width-(\kvtcb@left@rule+\kvtcb@leftupper+(\kvtcb@boxsep)*2+\kvtcb@rightupper+\kvtcb@right@rule)}%
     #1}%
 }
 
@@ -201,10 +203,10 @@
   circular arc/.style={arc=\tcb@innerwidth/2},
   bean arc/.code={%
     \iftcb@fixedheight%
-      \ifdim\dimexpr\kvtcb@width-\kvtcb@left@rule-\kvtcb@right@rule>\dimexpr\kvtcb@height@fixed-\kvtcb@top@rule@stand-\kvtcb@bottom@rule@stand\relax%
-        \def\kvtcb@arc{(\kvtcb@height@fixed-\kvtcb@top@rule@stand-\kvtcb@bottom@rule@stand)/2}%
+      \ifdim\dimexpr\kvtcb@width-(\kvtcb@left@rule+\kvtcb@right@rule)>\dimexpr\kvtcb@height@fixed-(\kvtcb@top@rule@stand+\kvtcb@bottom@rule@stand)\relax%
+        \def\kvtcb@arc{(\kvtcb@height@fixed-(\kvtcb@top@rule@stand+\kvtcb@bottom@rule@stand))/2}%
       \else%
-        \def\kvtcb@arc{(\kvtcb@width-\kvtcb@left@rule-\kvtcb@right@rule)/2}%
+        \def\kvtcb@arc{(\kvtcb@width-(\kvtcb@left@rule+\kvtcb@right@rule))/2}%
       \fi%
     \else%
       \def\kvtcb@arc{\tcb@innerwidth/2}%
@@ -289,12 +291,13 @@
   text height/.code={\tcb@fixedheighttrue\tcb@dim@to\kvtcb@height@fixed{#1}\let\tcb@ch=\tcb@ch@innerfixed\let\tcb@height@adjust\@empty},
   add to height/.code={\ifdefined\kvtcb@height@fixed\tcbdimto\kvtcb@height@fixed{\kvtcb@height@fixed+(#1)}\fi},
   height plus/.dimstore in=\kvtcb@height@fixed@plus,%
-  height from/.style args={#1 to #2}{height={#1},height plus={#2-#1}},%
+  height from/.style args={#1 to #2}{height={#1},height plus={#2-(#1)}},%
   height fill/.is choice,%
   height fill/false/.code={\let\tcb@height@adjust\@empty},%
   square/.style={height=\kvtcb@width},
   equal height group/.code={\edef\tcb@ehgid{#1}\let\tcb@ch=\tcb@ch@equalheight},
   minimum for equal height group/.code args={#1:#2}{\edef\tcb@ehgid{#1}\tcb@ehgadd{#2}},
+  use height from group/.code={\ifcsundef{tcb@ehg@height@#1}{}{\tcbset{height=\csuse{tcb@ehg@height@#1}}}},
   space/.code={\def\tcb@height@fraction{#1}\let\tcb@ch@fixed@both=\tcb@ch@fixed@space},
   space to upper/.style={space=1},
   space to lower/.style={space=0},
@@ -359,17 +362,17 @@
   grow to right by/.code={%
     \tcbdimto\kvtcb@width{\kvtcb@width+#1}%
     \pgfkeysalso{enlarge right by={-\the\dimexpr#1\relax}}},%
-  left skip/.style={grow to left by={-#1}},
-  right skip/.style={grow to right by={-#1}},
+  left skip/.style={grow to left by={-\dimexpr#1\relax}},
+  right skip/.style={grow to right by={-\dimexpr#1\relax}},
   leftright skip/.style={left skip={#1},right skip={#1}},
   toggle enlargement/.is choice,
   toggle enlargement/none/.code={\let\tcb@setbb@toggle=\tcb@setbb@toggle@none},
-  toggle enlargement/evenpage/.code={\let\tcb@setbb@toggle=\tcb@setbb@toggle@evenpage},
+  toggle enlargement/evenpage/.code={\let\tcb@setbb@toggle=\tcb@setbb@toggle@evenpage\tcbset{check odd page}},
   toggle enlargement/forced/.code={\let\tcb@setbb@toggle=\tcb@setbb@toggle@forced},
   toggle enlargement/.default=evenpage,
   toggle left and right/.is choice,
   toggle left and right/none/.code={\let\tcb@lrtoggle=\tcb@lrtoggle@none},
-  toggle left and right/evenpage/.code={\let\tcb@lrtoggle=\tcb@lrtoggle@evenpage},
+  toggle left and right/evenpage/.code={\let\tcb@lrtoggle=\tcb@lrtoggle@evenpage\tcbset{check odd page}},
   toggle left and right/forced/.code={\let\tcb@lrtoggle=\tcb@lrtoggle@forced},
   toggle left and right/.default=evenpage,
   graphical environment/.store in=\kvtcb@graphenv,
@@ -458,8 +461,10 @@
   after title/.store in=\kvtcb@after@title,%
   before upper/.store in=\kvtcb@before@upper,%
   after upper/.store in=\kvtcb@after@upper,%
+  after upper*/.style={after upper={\unskip#1}},%
   before lower/.store in=\kvtcb@before@lower,%
   after lower/.store in=\kvtcb@after@lower,%
+  after lower*/.style={after lower={\unskip#1}},%
   center title/.style={halign title=flush center},%
   center upper/.style={halign upper=flush center},%
   center lower/.style={halign lower=flush center},%
@@ -481,7 +486,7 @@
   tikznode upper/.style={before upper={\centering\tcb@shield@externalize\begin{tikzpicture}\node[align=center,inner sep=0pt,outer sep=0pt,#1]\bgroup},after upper={\egroup;\end{tikzpicture}}},%
   tikznode lower/.style={before lower={\centering\tcb@shield@externalize\begin{tikzpicture}\node[align=center,inner sep=0pt,outer sep=0pt,#1]\bgroup},after lower={\egroup;\end{tikzpicture}}},%
   tikznode/.style={tikznode upper={#1},tikznode lower={#1}},%
-  varwidth upper/.style={before upper={\tcbdimto\tcb@w@upper{#1-\kvtcb@left@rule-\kvtcb@right@rule-\kvtcb@boxsep*2-\kvtcb@leftupper-\kvtcb@rightupper}%
+  varwidth upper/.style={before upper={\tcbdimto\tcb@w@upper{#1-(\kvtcb@left@rule+\kvtcb@right@rule+(\kvtcb@boxsep)*2+\kvtcb@leftupper+\kvtcb@rightupper)}%
     \begin{varwidth}{\tcb@w@upper}},after upper={\end{varwidth}}},%
   varwidth upper/.default=\kvtcb@width,
   text fill/.style={before upper={%
@@ -499,22 +504,26 @@
     after upper=\endminipage},
   oversize/.style={%
     width=\the\dimexpr\dimexpr\linewidth+#1+\kvtcb@left@rule+\kvtcb@leftupper+\kvtcb@boxsep*2+\kvtcb@rightupper+\kvtcb@right@rule\relax,%
-    enlarge left by=\the\dimexpr-\kvtcb@left@rule-\kvtcb@leftupper-\kvtcb@boxsep-#1/2\relax,%
-    enlarge right by=\the\dimexpr-\kvtcb@boxsep-\kvtcb@rightupper-\kvtcb@right@rule-#1/2\relax},%
+    enlarge left by=-\the\dimexpr\kvtcb@left@rule+\kvtcb@leftupper+\kvtcb@boxsep+(#1)/2\relax,%
+    enlarge right by=-\the\dimexpr\kvtcb@boxsep+\kvtcb@rightupper+\kvtcb@right@rule+(#1)/2\relax},%
   oversize/.default=0pt,%
+  flush right/.style={enlarge left by=\linewidth-(\kvtcb@width)},
+  flush left/.style={enlarge right by=\linewidth-(\kvtcb@width)},
+  center/.style={enlarge left by=(\linewidth-(\kvtcb@width))/2,enlarge right by=\kvtcb@bbleft},
   baseline/.store in=\kvtcb@baseline,%
-  tcbox raise/.style={baseline=-#1},%
+  tcbox raise/.style={baseline=-\the\dimexpr#1\relax},%
   tcbox raise base/.style={baseline=\tcb@val@raisebase},%
   box align/.is choice,%
   box align/bottom/.style={baseline=0pt},%
   box align/top/.style={baseline=\tcb@height},%
   box align/center/.style={baseline=\tcb@height/2},%
   box align/base/.style={baseline=\tcb@val@raisebase},%
-  shrink tight/.style={boxsep=0mm,top=-\kvtcb@top@rule@stand,bottom=-\kvtcb@bottom@rule@stand,left=-\kvtcb@left@rule,right=-\kvtcb@right@rule},%
-  extrude left by/.code={\tcbdimto\kvtcb@leftupper{\kvtcb@leftupper+#1}\tcbdimto\kvtcb@bbleft{\kvtcb@bbleft-#1}\tcbdimto\kvtcb@width{\kvtcb@width+#1}},%
-  extrude right by/.code={\tcbdimto\kvtcb@rightupper{\kvtcb@rightupper+#1}\tcbdimto\kvtcb@bbright{\kvtcb@bbright-#1}\tcbdimto\kvtcb@width{\kvtcb@width+#1}},%
-  extrude top by/.code={\tcbdimto\kvtcb@top{\kvtcb@top+#1}\tcbdimto\kvtcb@bbtop@stand{\kvtcb@bbtop@stand-#1}},%
-  extrude bottom by/.code={\tcbdimto\kvtcb@bottom{\kvtcb@bottom+#1}\tcbdimto\kvtcb@bbbottom@stand{\kvtcb@bbbottom@stand-#1}},%
+  shrink tight/.style={boxsep=0mm,top=-\the\dimexpr\kvtcb@top@rule@stand\relax,bottom=-\the\dimexpr\kvtcb@bottom@rule@stand\relax,%
+    left=-\the\dimexpr\kvtcb@left@rule\relax,right=-\the\dimexpr\kvtcb@right@rule\relax},%
+  extrude left by/.code={\tcbdimto\kvtcb@leftupper{\kvtcb@leftupper+#1}\tcbdimto\kvtcb@bbleft{\kvtcb@bbleft-(#1)}\tcbdimto\kvtcb@width{\kvtcb@width+#1}},%
+  extrude right by/.code={\tcbdimto\kvtcb@rightupper{\kvtcb@rightupper+#1}\tcbdimto\kvtcb@bbright{\kvtcb@bbright-(#1)}\tcbdimto\kvtcb@width{\kvtcb@width+#1}},%
+  extrude top by/.code={\tcbdimto\kvtcb@top{\kvtcb@top+#1}\tcbdimto\kvtcb@bbtop@stand{\kvtcb@bbtop@stand-(#1)}},%
+  extrude bottom by/.code={\tcbdimto\kvtcb@bottom{\kvtcb@bottom+#1}\tcbdimto\kvtcb@bbbottom@stand{\kvtcb@bbbottom@stand-(#1)}},%
   extrude by/.style={extrude left by=#1,extrude right by=#1,extrude top by=#1,extrude bottom by=#1},%
   sidebyside/.is if=tcb@sidebyside,%
   sidebyside align/.is choice,%
@@ -538,14 +547,11 @@
   capture/.store in=\kvtcb@capture,%
   hbox/.style={capture=hbox},%
   minipage/.style={capture=minipage},%
-  check odd page/.is choice,
-  check odd page/true/.code={\let\tcb@checkoddpage=\checkoddpage%
-    \def\tcb@evenoddmode{strict}%
-    },
-  check odd page/false/.code={\let\tcb@checkoddpage=\relax%
-    \def\tcb@evenoddmode{easy}%
-    },
-  check odd page/.default=true,
+  check odd page/.is if=tcb@checkpage,
+  if odd page/.code 2 args={%
+    \tcbset{check odd page}%
+    \ifodd\thetcolorboxpage\tcbset{#1}\else\tcbset{#2}\fi%
+  },
   phantom/.code={\appto\kvtcb@phantom{#1}},
   step and label/.style 2 args={phantom={\refstepcounter{#1}\tcb@set@label{#2}}},%
   step/.style={phantom={\refstepcounter{#1}}},%
@@ -668,7 +674,7 @@
     \@endpefalse
     \csname tcb@parbox@use@\kvtcb@parbox\endcsname%
     \tcb@minipage#2\tcb@hyph@fix\ignorespaces}
-\def\endtcb@lrbox{\unskip\endminipage}
+\let\endtcb@lrbox=\endminipage
 
 \let\tcb@savebox=\tcb@lrbox
 \let\endtcb@savebox=\endtcb@lrbox
@@ -700,16 +706,18 @@
 
 
 \def\tcb@set@@phantom{%
+  \iftcb@checkpage\tcb@phantom@savepage\fi%
   \ifx\kvtcb@phantom\@empty\tcb@hasPhantomfalse\else%
     \tcb@hasPhantomtrue%
     \sbox\tcb@phantombox{\kvtcb@phantom}%
+    \let\kvtcb@phantom\@empty%
   \fi%
 }
 
 \def\tcb@set@@title{%
   \ifx\kvtcb@title\@empty\tcb@hasTitlefalse\tcb@specialtitle@hook\else%
     \tcb@hasTitletrue%
-    \tcbdimto\tcb@w@title{\kvtcb@width-(\kvtcb@left@rule)-(\kvtcb@right@rule)-(\kvtcb@boxsep)*2-(\kvtcb@lefttitle)-(\kvtcb@righttitle)}%
+    \tcbdimto\tcb@w@title{\kvtcb@width-(\kvtcb@left@rule+\kvtcb@right@rule+(\kvtcb@boxsep)*2+\kvtcb@lefttitle+\kvtcb@righttitle)}%
     \begin{tcb@savebox}{\tcb@titlebox}{\tcb@w@title}\color{tcbcol@title}\kvtcb@fonttitle\kvtcb@haligntitle\kvtcb@before@title\kvtcb@title\kvtcb@after@title\end{tcb@savebox}%
   \fi%
 }
@@ -774,7 +782,7 @@
   \let\tcb@after@box=\kvtcb@after@upper%
   % switch for lower box
   \def\tcblower{%
-    \unskip\tcb@after@box%
+    \tcb@after@box%
     \end{tcb@savebox}%
     \tcb@set@color{tcbcol@lower}%
     \unless\iftcb@sidebyside%
@@ -827,6 +835,35 @@
   \tcb@finalize@environment%
 }
 
+\def\tcb@count@boxes{%
+  \global\advance\tcolorbox@number by 1\relax%
+  \edef\thetcolorboxnumber{\number\tcolorbox@number}%
+  \expandafter\ifx\csname tcolorboxpage@\thetcolorboxnumber\endcsname\relax%
+    \edef\thetcolorboxpage{\number\c@page}%
+  \else%
+    \expandafter\let\expandafter\thetcolorboxpage\csname tcolorboxpage@\thetcolorboxnumber\endcsname%
+  \fi%
+}
+
+\def\tcolorbox@label{\@newl@bel{tcolorboxpage}}%
+
+\write\@auxout{\string\providecommand\string\tcolorbox@label[2]{}}%
+
+\def\tcolorbox@savepage#1{%
+    \@bsphack%
+    \write\@auxout{\string\tcolorbox@label{#1}{\number\c@page}}%
+    \@esphack%
+}%
+
+\def\tcb@phantom@savepage{\preto\kvtcb@phantom{\expandafter\tcolorbox@savepage\expandafter{\thetcolorboxnumber}}}
+
+\def\tcbifoddpage{%
+  \ifodd\thetcolorboxpage\relax%
+    \expandafter\@firstoftwo%
+  \else%
+    \expandafter\@secondoftwo%
+  \fi%
+}
 
 \def\tcb@managed@layers@max{0}
 \def\tcbsetmanagedlayers#1{%
@@ -853,6 +890,7 @@
 }
 
 \def\tcb@layer@inc{%
+  \tcb@count@boxes%
   \stepcounter{tcblayer}%
   \ifnum\c@tcblayer>1%
     \tcbset{breakable@true/.code=}%
@@ -869,6 +907,8 @@
 }
 
 \def\tcb@layer@pushup{%
+  \tcb@count@boxes%
+  \global\advance\tcolorbox@number by -1\relax%
   \stepcounter{tcblayer}%
   \ifnum\c@tcblayer>1%
     \tcbset{breakable@true/.code=}%
@@ -913,7 +953,7 @@
 \let\tcolorbox\tcb@colorbox
 
 \def\tcb@endboxanddraw{%
-  \unskip\tcb@after@box%
+  \tcb@after@box%
   \end{tcb@savebox}%
   \tcb@reset@color%
   \tcb@draw@color@box%
@@ -929,7 +969,7 @@
 
 % height computations
 \def\tcb@ch@natural{%
-  \edef\tcb@height{\tcb@natheight}%
+  \let\tcb@height\tcb@natheight%
   \tcbdimto\tcb@height@upper{\ht\tcb@upperbox+\dp\tcb@upperbox}%
   \iftcb@lowerspace%
   \tcbdimto\tcb@height@lower{\ht\tcb@lowerbox+\dp\tcb@lowerbox}%
@@ -955,13 +995,13 @@
 
 \def\tcb@ch@fixed{%
   \ifdim\tcb@natheight<\dimexpr\kvtcb@height@fixed\relax%
-    \edef\tcb@height{\kvtcb@height@fixed}%
+    \tcbdimto\tcb@height{\kvtcb@height@fixed}%
   \else%
     \tcbdimto\tcb@temp{\kvtcb@height@fixed+\kvtcb@height@fixed@plus}%
-    \ifdim\tcb@natheight>\tcb@temp%
-      \edef\tcb@height{\tcb@temp}%
+    \ifdim\tcb@natheight>\tcb@temp\relax%
+      \let\tcb@height\tcb@temp%
     \else%
-      \edef\tcb@height{\tcb@natheight}%
+      \let\tcb@height\tcb@natheight%
     \fi%
   \fi%
   \iftcb@lowerspace\tcb@ch@fixed@both\else\tcb@ch@fixed@upper\fi%
@@ -972,6 +1012,14 @@
   \tcb@ch@fixed%
 }
 
+\def\tcbheightfromgroup#1#2{%
+  \ifcsundef{tcb@ehg@height@#2}{%
+    \let#1\tcb@zpt%
+  }{%
+    \letcs{#1}{tcb@ehg@height@#2}%
+  }%
+}
+
 \def\tcb@saveehg#1{%
   \immediate\write\@auxout{\string\csgdef{tcb@ehg@height@#1}{\csuse{tcb@ehg@current@#1}}}%
 }
@@ -992,12 +1040,12 @@
   \tcb@ehgadd{\tcb@natheight}%
   \ifcsdef{tcb@ehg@height@\tcb@ehgid}{%
     \ifdim\csuse{tcb@ehg@height@\tcb@ehgid}<\tcb@natheight\relax%
-      \edef\tcb@height{\tcb@natheight}%
+      \let\tcb@height\tcb@natheight%
     \else%
       \letcs{\tcb@height}{tcb@ehg@height@\tcb@ehgid}%
     \fi%
   }{%
-    \edef\tcb@height{\tcb@natheight}%
+    \let\tcb@height\tcb@natheight%
   }%
   \iftcb@lowerspace\tcb@ch@fixed@both\else\tcb@ch@fixed@upper\fi%
 }
@@ -1243,7 +1291,6 @@
   \end{pgfscope}%
 }
 
-
 \def\tcb@setbb@toggle@none{%
   \pgfpathrectanglecorners{\pgfqpoint{\the\dimexpr0pt-\kvtcb@bbleft\relax}{\the\dimexpr0pt-\kvtcb@bbbottom\relax}}%
      {\pgfqpoint{\the\dimexpr\tcb@width+\kvtcb@bbright\relax}{\the\dimexpr\tcb@height+\kvtcb@bbtop\relax}}%
@@ -1254,16 +1301,8 @@
     {\pgfqpoint{\the\dimexpr\tcb@width+\kvtcb@bbleft\relax}{\the\dimexpr\tcb@height+\kvtcb@bbtop\relax}}%
 }
 
-\def\tcb@setbb@toggle@evenpage@easy{%
-  \ifodd\thepage\tcb@setbb@toggle@none\else\tcb@setbb@toggle@forced\fi%
-}
-
-\def\tcb@setbb@toggle@evenpage@strict{%
-  \ifoddpage\tcb@setbb@toggle@none\else\tcb@setbb@toggle@forced\fi%
-}
-
 \def\tcb@setbb@toggle@evenpage{%
-  \csname tcb@setbb@toggle@evenpage@\tcb@evenoddmode\endcsname%
+  \ifodd\thetcolorboxpage\tcb@setbb@toggle@none\else\tcb@setbb@toggle@forced\fi%
 }
 
 \def\tcb@creategeonodes@false{}
@@ -1283,20 +1322,11 @@
   \tcb@swap{\kvtcb@leftlower}{\kvtcb@rightlower}%
 }
 
-\def\tcb@lrtoggle@evenpage@easy{%
-  \unless\ifodd\thepage\tcb@lrtoggle@forced\fi%
-}
-
-\def\tcb@lrtoggle@evenpage@strict{%
-  \unless\ifoddpage\tcb@lrtoggle@forced\fi%
-}
-
 \def\tcb@lrtoggle@evenpage{%
-  \csname tcb@lrtoggle@evenpage@\tcb@evenoddmode\endcsname%
+  \unless\ifodd\thetcolorboxpage\tcb@lrtoggle@forced\fi%
 }
 
 \def\tcb@bbdraw{%
-  \tcb@checkoddpage%
   \tcb@lrtoggle%
   \tcb@setbb@toggle%
   \pgfusepath{use as bounding box}%
@@ -1511,7 +1541,7 @@
   \tcb@set@@phantom%
   \colorlet{tcbcol@origin}{.}%
   \tcb@set@color{tcbcol@upper}%
-  \sbox\tcb@upperbox{\tcb@embed@tcbox{\kvtcb@fontupper\kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\unskip\kvtcb@after@upper}}%
+  \sbox\tcb@upperbox{\tcb@embed@tcbox{\kvtcb@fontupper\kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\kvtcb@after@upper}}%
   \tcb@reset@color%
   \tcbdimto\tcb@val@raisebase{\the\dimexpr\dp\tcb@upperbox+\kvtcb@bottom+\kvtcb@boxsep+\kvtcb@bottom@rule@stand+\kvtcb@bbbottom@stand\relax}%
   \tcbdimto\kvtcb@width{\wd\tcb@upperbox+\kvtcb@left@rule+\kvtcb@leftupper+\kvtcb@boxsep*2+\kvtcb@rightupper+\kvtcb@right@rule}%
@@ -1529,7 +1559,7 @@
   \tcb@set@@dimensions%
   \colorlet{tcbcol@origin}{.}%
   \tcb@set@color{tcbcol@upper}%
-  \begin{tcb@savebox}{\tcb@upperbox}{\tcb@w@upper}\kvtcb@fontupper\kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\unskip\kvtcb@after@upper\end{tcb@savebox}%
+  \begin{tcb@savebox}{\tcb@upperbox}{\tcb@w@upper}\kvtcb@fontupper\kvtcb@halignupper\kvtcb@before@upper\ignorespaces#1\kvtcb@after@upper\end{tcb@savebox}%
   \tcb@reset@color%
   \tcb@hasLowerfalse%
   \tcb@draw@color@box%