10 files changed, 45 insertions, 27 deletions
diff --git a/Master/texmf-dist/doc/latex/unicode-math/CHANGES.md b/Master/texmf-dist/doc/latex/unicode-math/CHANGES.md
index b309a174625..08f01fbfa24 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/CHANGES.md
+++ b/Master/texmf-dist/doc/latex/unicode-math/CHANGES.md
@@ -1,6 +1,19 @@
 CHANGE HISTORY
 ==============
 
+## v0.8m (2018/07/29)
+
+  * Restore behaviour of legacy syntax `x_\mathrm{x}` (i.e., with no braces).
+    While strictly ‘incorrectly’, this usage is widely used.
+    N.B. this syntax is not supported for the `\symXX` commands.
+  * Add `\cuberoot` and `\fourthroot` as proper radicals.
+  * Some additional input subscripts/superscripts.
+  * Some documentation additions (thanks for the contributions).
+  * Deprecation warning: the *internal* `\__um_switchto_XX:` commands will be dropped in
+    a future release in favour of `\__um_switch_to:n {XX}` (or similar). These are internal
+    commands and shouldn't be used by third-parties; please write if you have a use case.
+
+
 ## v0.8l (2018/02/02)
 
   * Issue an error message if `\setmathfont{...}[range=...]` is used first; a `range`
@@ -10,6 +23,7 @@ CHANGE HISTORY
   * Document incompatibility with the `mathspec` package. (#436)
   * Fix bugs for using `range=\partial` and `range=\nabla`. (#441)
 
+
 ## v0.8k (2018/01/13)
 
   * Eliminate warnings `Variant form 'NV' invalid for base form`... (#430).
diff --git a/Master/texmf-dist/doc/latex/unicode-math/README.md b/Master/texmf-dist/doc/latex/unicode-math/README.md
index c9bd15fec0c..92578d2057c 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/README.md
+++ b/Master/texmf-dist/doc/latex/unicode-math/README.md
@@ -62,8 +62,10 @@ PACKAGE USAGE
 
 Please see the PDF documentation for full details. A simple beginning is:
 
-    \usepackage{unicode-math}
-    \setmathfont{texgyrepagella-math.otf}
+```tex
+\usepackage{unicode-math}
+\setmathfont{texgyrepagella-math.otf}
+```
 
 Most LaTeX math should still work after this. (Let me know if it doesn't.)
 Furthermore, it will be in a different font.
diff --git a/Master/texmf-dist/doc/latex/unicode-math/RELEASE_CHECKLIST.md b/Master/texmf-dist/doc/latex/unicode-math/RELEASE_CHECKLIST.md
index 445351f8136..13c2f4e788e 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/RELEASE_CHECKLIST.md
+++ b/Master/texmf-dist/doc/latex/unicode-math/RELEASE_CHECKLIST.md
@@ -2,11 +2,11 @@
 
 - [ ] Finish final changes on `working` branch
 - [ ] Ensure `CHANGES.md` is up-to-date with a new version number
-- [ ] `build setversion`
+- [ ] `build tag foo`
+- [ ] `git push`
+- [ ] Check Travis build status (hopefully is working that date)
 - [ ] Update local distro fully with tlmgr
 - [ ] Run `build check` locally
-- [ ] `git push`
-- [ ] Check Travis build status
 - [ ] Install prerelease versions of `fontspec` and `latex3` and re-check
 - [ ] `git checkout master; git rebase working`
 - [ ] `build ctan`
diff --git a/Master/texmf-dist/doc/latex/unicode-math/um-doc-main.tex b/Master/texmf-dist/doc/latex/unicode-math/um-doc-main.tex
index ff82a414a96..3d871ddd8b4 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/um-doc-main.tex
+++ b/Master/texmf-dist/doc/latex/unicode-math/um-doc-main.tex
@@ -655,11 +655,11 @@ sans serif bold, you must write |\symbfsf{...}| rather than |\symbf{\symsf{...}}
 This may change in the future.
 
 \begin{table}
-\caption{Mathematical styles defined in Unicode. Black dots indicate an style exists in the font specified; blue dots indicate shapes that should always be taken from the upright font even in the italic style. See main text for description of \cs{mathbbit}.}
+\caption{Mathematical styles defined in Unicode. Closed dots indicate an style exists in the font specified; open dots indicate shapes that should always be taken from the upright font even in the italic style. See main text for description of \cs{mathbbit}.}
 \tablabel{mathalphabets}
 \centering
 \def\Y{\textbullet}
-\def\M{\textcolor[rgb]{0.5,0.5,1}{\textbullet}}
+\def\M{\textopenbullet}
 \begin{tabular}{@{} lll l ccc @{}}
 \toprule
 \multicolumn{3}{c}{Font} & & \multicolumn{3}{c}{Alphabet} \\
@@ -672,9 +672,9 @@ Serif      & Upright & Normal & \cs{symup}     & \Y & \Y & \Y  \\
            & Italic  & Normal & \cs{symit}     & \Y & \Y & \M  \\
            &         & Bold   & \cs{symbfit}   & \Y & \Y & \M  \\
 Sans serif & Upright & Normal & \cs{symsfup}   & \Y &    & \Y  \\
+           &         & Bold   & \cs{symbfsfup} & \Y & \Y & \Y  \\
            & Italic  & Normal & \cs{symsfit}   & \Y &    & \M  \\
-           & Upright & Bold   & \cs{symbfsfup} & \Y & \Y & \Y  \\
-           & Italic  & Bold   & \cs{symbfsfit} & \Y & \Y & \M  \\
+           &         & Bold   & \cs{symbfsfit} & \Y & \Y & \M  \\
 Typewriter & Upright & Normal & \cs{symtt}     & \Y &    & \Y  \\
 Double-struck & Upright & Normal & \cs{symbb}     & \Y &    & \Y  \\
               & Italic  & Normal & \cs{symbbit}   & \Y &    &  \\
@@ -841,6 +841,16 @@ If you ever need to enter the straight quote |'| or the backtick |`| in
 maths mode, these glyphs can be accessed with \cs{mathstraightquote} and
 \cs{mathbacktick}.
 
+\subsubsection{Subscripts and superscripts and symbol alphabets}
+
+In traditional \LaTeX, users have for many years exploited a loophole in the implementation
+of |\mathrm| and similar to write expressions such as |x_\mathrm f| to achieve
+$x_{\mathrm{f}}$ instead of writing the more correct |x_{\mathrm{f}}|.
+Shorthand notation such as |x_\mathrm f| is not officially documented \LaTeX\ syntax,
+and due to a particular implementation detail in \pkg{unicode-math} this \emph{incorrect}
+syntax is no longer supported.
+
+
 \subsubsection{Unicode subscripts and superscripts}
 
 You may, if you wish, use Unicode subscripts and superscripts in your
@@ -1187,6 +1197,13 @@ This warning could be suppressed by loading the package as follows:
   \usepackage[warnings-off={mathtools-colon}]{unicode-math}
 \end{Verbatim}
 
+\subsection{How to overwrite a macro}
+
+\pkg{unicode-math} defines the macros by \cs{AtBeginDocument},
+namely delays the definition until |\begin{document}| is met.
+If you want to overwrite a macro defined by \pkg{unicode-math},
+please redefine it in \cs{AtBeginDocument} after loading this package.
+
 \subsection{Programmer's interface}
 
 (Tentative and under construction.)
diff --git a/Master/texmf-dist/doc/latex/unicode-math/um-doc-style.tex b/Master/texmf-dist/doc/latex/unicode-math/um-doc-style.tex
index 46c2a8e1cf8..e5b581aed19 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/um-doc-style.tex
+++ b/Master/texmf-dist/doc/latex/unicode-math/um-doc-style.tex
@@ -2,9 +2,6 @@
 
 \makeatletter
 \input{unicode-math.dtx}
-\GetFileInfo{unicode-math.dtx}
-\let\umfiledate\filedate
-\let\umfileversion\fileversion
 
 \CheckSum{0}
 \EnableCrossrefs
diff --git a/Master/texmf-dist/doc/latex/unicode-math/unicode-math-code.pdf b/Master/texmf-dist/doc/latex/unicode-math/unicode-math-code.pdf
index 79b17d3d19d..4cafb85ff78 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/unicode-math-code.pdf
+++ b/Master/texmf-dist/doc/latex/unicode-math/unicode-math-code.pdf
diff --git a/Master/texmf-dist/doc/latex/unicode-math/unicode-math.pdf b/Master/texmf-dist/doc/latex/unicode-math/unicode-math.pdf
index 94d3a034995..10a4e76b8c2 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/unicode-math.pdf
+++ b/Master/texmf-dist/doc/latex/unicode-math/unicode-math.pdf
diff --git a/Master/texmf-dist/doc/latex/unicode-math/unimath-example.pdf b/Master/texmf-dist/doc/latex/unicode-math/unimath-example.pdf
index 89d173fbeaf..822d0ef7038 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/unimath-example.pdf
+++ b/Master/texmf-dist/doc/latex/unicode-math/unimath-example.pdf
diff --git a/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.ltx b/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.ltx
index 808f26bc693..e6c75522f88 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.ltx
+++ b/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.ltx
@@ -46,7 +46,7 @@
 \defmathfont{lm}{latinmodern-math.otf}{CC6666}
 \defmathfont{xits}{xits-math.otf}{CCCC66}
 \defmathfont{stix}{STIXMath-Regular.otf}{AA66CC}
-\defmathfont{cambria}{Cambria Math}{66CCCC}
+\defmathfont{cambria}{CambriaMath.ttf}{66CCCC}
 \defmathfont{asana}{Asana-Math.otf}{6666CC}
 \defmathfont{pagella}{texgyrepagella-math.otf}{AA6666}
 \defmathfont{dejavu}{texgyredejavu-math.otf}{AACC66}
@@ -150,25 +150,11 @@
 \def\AMSSYMB{\boxdot\boxplus\boxtimes\square\blacksquare\centerdot\lozenge\blacklozenge\circlearrowright\circlearrowleft\leftrightharpoons\boxminus\Vdash\Vvdash\vDash\twoheadrightarrow\twoheadleftarrow\leftleftarrows\rightrightarrows\upuparrows\downdownarrows\upharpoonright\restriction\downharpoonright\upharpoonleft\downharpoonleft\rightarrowtail\leftarrowtail\leftrightarrows\rightleftarrows\Lsh\Rsh\rightsquigarrow\leftrightsquigarrow\looparrowleft\looparrowright\circeq\succsim\gtrsim\gtrapprox\multimap\therefore\because\doteqdot\Doteq\triangleq\precsim\lesssim\lessapprox\eqslantless\eqslantgtr\curlyeqprec\curlyeqsucc\preccurlyeq\leqq\leqslant\lessgtr\backprime\risingdotseq\fallingdotseq\succcurlyeq\geqq\geqslant\gtrless\vartriangleright\vartriangleleft\trianglerighteq\trianglelefteq\bigstar\between\blacktriangledown\blacktriangleright\blacktriangleleft\vartriangle\blacktriangle\triangledown\eqcirc\lesseqgtr\gtreqless\lesseqqgtr\gtreqqless\Rrightarrow\Lleftarrow\veebar\barwedge\doublebarwedge\measuredangle\sphericalangle\varpropto\smallsmile\smallfrown\Subset\Supset\Cup\doublecup\Cap\doublecap\curlywedge\curlyvee\leftthreetimes\rightthreetimes\subseteqq\supseteqq\bumpeq\Bumpeq\lll\llless\ggg\gggtr\circledS\pitchfork\dotplus\backsim\backsimeq\complement\intercal\circledcirc\circledast\circleddash\lvertneqq\gvertneqq\nleq\ngeq\nless\ngtr\nprec\nsucc\lneqq\gneqq\nleqslant\ngeqslant\lneq\gneq\npreceq\nsucceq\precnsim\succnsim\lnsim\gnsim\nleqq\ngeqq\precneqq\succneqq\precnapprox\succnapprox\lnapprox\gnapprox\nsim\ncong\diagup\diagdown\varsubsetneq\varsupsetneq\nsubseteqq\nsupseteqq\subsetneqq\supsetneqq\varsubsetneqq\varsupsetneqq\subsetneq\supsetneq\nsubseteq\nsupseteq\nparallel\nmid\nshortmid\nshortparallel\nvdash\nVdash\nvDash\nVDash\ntrianglerighteq\ntrianglelefteq\ntriangleleft\ntriangleright\nleftarrow\nrightarrow\nLeftarrow\nRightarrow\nLeftrightarrow\nleftrightarrow\divideontimes\varnothing\nexists\Finv\Game\eth\eqsim\beth\gimel\daleth\lessdot\gtrdot\ltimes\rtimes\shortmid\shortparallel\smallsetminus\thicksim\thickapprox\approxeq\succapprox\precapprox\curvearrowleft\curvearrowright\digamma\varkappa\Bbbk\hslash\backepsilon}
 
 \input{unicode-math.dtx}
-\makeatletter
-\def\GetFileInfo#1{%
-  \def\filename{#1}%
-  \def\@tempb##1 ##2 ##3\relax##4\relax{%
-    \def\filedate{##1}%
-    \def\fileversion{##2}%
-    \def\fileinfo{##3}}%
-  \edef\@tempa{\csname ver@#1\endcsname}%
-  \expandafter\@tempb\@tempa\relax? ? \relax\relax}
-\makeatother
-\GetFileInfo{unicode-math.dtx}
-\let\umfiledate\filedate
-\let\umfileversion\fileversion
 
 \begin{document}
 \MakeShortVerb\|
 \title{Every symbol (most symbols) defined by \textsf{unicode-math}}
 \author{Will Robertson}
-\date{\umfiledate \qquad \umfileversion}
 \maketitle
 
 This document uses the file \texttt{unicode-math-table.tex}
@@ -198,6 +184,8 @@ Symbols defined in \textsf{amssymb} are indicated with {\color[gray]{0.6} \texts
 \section{Opening symbols, \cmd\mathopen}
 \begingroup
 \def\sqrt{\sqrtsign{}}
+\def\cuberoot{\cuberootsign{}}
+\def\fourthroot{\fourthrootsign{}}
 \def\longdivision{\longdivisionsign{}}
 \SHOW\mathopen
 \endgroup
diff --git a/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.pdf b/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.pdf
index 4a5e798a464..c650c1c4709 100644
--- a/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.pdf
+++ b/Master/texmf-dist/doc/latex/unicode-math/unimath-symbols.pdf