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+CHANGE HISTORY
+==============
+
+## v0.8q (2020/01/31)
+
+ * Update to adapt to / support new features in the upcoming 2e kernel.
+ * Give a better error message if used on non-supported engines that are not pdfTeX.
+
+
+## v0.8p (2019/09/26)
+
+ * Remove dependency on `filehook` package. Just to simplify.
+ * Remove patch code for the `colonequals` package; now if you use that package
+ you will simply receive its standard ‘constructed’ symbols.
+ * Load `amsmath` automatically. This is not intended to save time for the user,
+ but to simplify the code logic. Users should continue to load `amsmath` explicitly IMO.
+
+
+## v0.8o (2019/03/04)
+
+ * Avoid `'Dimension too large' error` for some (unpredictable) combinations of font
+ choice and the `Scale` option. Problems are still known to occur for very large or
+ very small values of `Scale`.
+ * Documentation is now run through ‘continuous integration’ (viz, *Travis* for the time being)
+ as well as the test suite.
+
+
+## v0.8n (2019/01/26)
+
+ * Add note to readme that the `lm-math` package is required for minimal functionality.
+ * Spacing fixed for maths fonts loaded with the `Scale` fontspec feature (#287).
+ * Commands like `\crampedtextstyle` now longer lead to an infinite loop under XeTeX (#505).
+ * Improvements to the functionality of the test suite. (Although more tests would be nice.)
+ * Test suite is now (successfully) run with `expl3` debug mode enabled.
+
+
+## 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`
+ declaration inherently implies a subset, so a ‘main’ math font needs to be set up first.
+ * Fix issue when nesting `\mathXX` and `\symZZ` commands. (#356, #435, #438)
+ * Fix another issue when using `mathXX` or `\symXX` inside `\DeclareMathOperator`. (#449)
+ * 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).
+ * Fix issue when loading the `cal` range (#431).
+ * Fix issue with `\sqrt[n]{x}` with `amsmath` (#432).
+ * Error when loading on (really) old versions of XeTeX/LuaTeX removed.
+ * More UM fonts listed in the README (#425).
+
+
+## v0.8j (2018/01/07)
+
+ - NEW
+
+ * Numbers and latin letters in the fullwidth Unicode range are now supported
+ as aliases to their ASCII counterparts (#337).
+ * New commands `\(New|Renew)NegationCommand \foo` for defining custom negations
+ accessed via `\not\foo`.
+
+ - SYMBOLS
+
+ * `\typecolon` is now `\mathrel` instead of `\mathbin` (#360).
+ * New symbol `\mathhyphen` which acts like a ‘letter’ (#313).
+ * `\nabla` and `\partial` have corrected documentation (#257).
+ * The following legacy commands are listed as ‘unsupported’ and will result
+ in sensible error messages rather than the old behaviour of meaningless
+ output: `\arrowvert`, `\Arrowvert`, `\bracevert`. (#411).
+
+ - BUGS
+
+ * LuaTeX bug with shifted `\underbrace` when it contains accented symbols worked around (#391).
+ * When using the `range` feature, users commonly found they needed to call
+ `\setmathfont` a final time with the original font to ensure correct
+ formatting and correct selection of symbol alphabets. I hope the issues
+ that required this have now been corrected (#331, #387).
+ * If `\setmathfont` is called a second time in a document, it tries harder
+ to more properly reset the maths font setup for the new font (#224).
+ * Properly hard-coded the `\delcode` of the period to ensure `\left`/`\right`
+ behave correctly in all circumstances (#344, #351, #420).
+ * Correct `\mathrm` (etc.) situation when no fonts loaded explicitly by the user (#330).
+ * Various bug fixes to `\not` (#126, #343, #363)
+ * `\std@minus` & `\std@equal` now properly corrected (#332).
+ * Fix problem with infinite loop with `\cdots` when `amsmath` loaded after `unicode-math` (#227).
+ * If `\setmath(rm|sf|tt)` is called *before* loading `unicode-math`, the setting
+ is now remembered (#407).
+
+ - INTERNALS
+
+ * A number of improvements to efficiency when loading subsequent math fonts
+ using the `range` feature.
+ * No longer loads the `ucharcat` package.
+ * Test suite re-implemented for better portability and use with Travis CI.
+ See <https://travis-ci.org/wspr/unicode-math> for the up-to-date status
+ of whether the test suite is passing.
+
+
+
+## v0.8i (2017/11/18)
+
+ * Many internal changes to support future work.
+ * Improved documentation describing the `\mathXX` and `\symXX` commands.
+ * Documentation is now split into `unicode-math.pdf` (for the user)
+ and `unicode-math-code.pdf` (for the typeset source code).
+
+
+## v0.8h (2017/10/09)
+
+ * Some bugs crept in in the last update due to some code rearrangement:
+ * package version wasn't set;
+ * some code was being executed at the wrong time;
+ * `\sqrt[]{}` in LuaLaTeX gave incorrect output.
+ * The layout of the code is now structured far more sensibly.
+ * Remove (long deprecated) `\resetmathfont`; for years it has been a synonym for `\setmathfont`.
+
+
+## v0.8g (2017/10/02)
+
+ * Better use of scriptstyle sizes in LuaTeX (I think a regression).
+ * Fix regression (`\mathbf` etc. not being set automatically) caused by the renaming of a `fontspec` internal command.
+ * Minor documentation improvements.
+ * (Only relevant for me: I've also disabled the test suite almost entirely to begin a re-write for ‘continuous integration’.)
+
+
+## v0.8f (2017/08/02)
+
+ * Emergency fix (thanks Bruno) for another bug revealed by `expl3` update.
+
+
+## v0.8e (2017/07/30)
+
+ * Add `\surd` to access the sqrt symbol.
+ * Fix bug exposed by `expl3` update to booleans.
+ * Add Deja Vu Math TeX Gyre in list of symbols.
+ * Add `\sime` alias for `\simeq` and `\nsimeq` for `\nsime`.
+ (For negations it's helpful when they have consistent naming.)
+
+
+## v0.8d (2017/01/25)
+
+ * `vargreek-shape=TeX` and `vargreek-shape=unicode` package options dropped; for consistency and compatibility, `\phi` and `\epsilon` should and will now behave the same as in `TeX`.
+ * On that note, when using control sequences such as `\mbfitsansvarphi` (and so on), there were a few faulty definitions. The new behaviour is to consistenyl define the `varphi` and `varepsilon` ones as those with the "curly" designs.
+ * Add `\wideoverbar`, `\widebreve`, `\widecheck`.
+ * Add `\mathsection`, `\mathparagraph`.
+ * Remove `\mupvarbeta`, `upold(Kk)oppa`, `\up(Ss)tigma`, `\up(Kk)oppa`, `\up(Ss)ampi` — none of these are maths symbols.
+ * `!` (`\mathexclam`) changed from `\mathpunct` to `\mathclose` for backwards compatibility with TeX.
+
+
+## v0.8c (2015/09/24)
+
+ * Add `\over(left/right)harpoon` as "wide" accents.
+ * Add RTL mathematics operators `\arabicmaj` and `\arabichad`, which correspond to `U+1EEF0` and `U+1EEF1`, resp.
+ * Remove `catchfile` package dependency.
+ * Update some internal names to match expl3 standards.
+
+
+## v0.8b (2015/09/09)
+
+ * Bug fix: Use the "ucharcat" package to simplify some code that caused some headaches with \tl_rescan:nn.
+
+
+## v0.8a (2015/08/06)
+
+ * Fix bug with \vert, \|, \(l/r)vert, etc., displaying with the wrong characters.
+
+ * Improve documentation to properly reflect changes in v0.8 and fix some broken examples.
+
+ * No longer reset catcodes of : and @ during \setmathfont .
+
+ * Fix remapping of alphabets (needed for Minion Math) in cases such as:
+
+ \setmathfont[range=bfit->it]{MinionMath-Bold.otf}
+
+
+## v0.8 (2015/07/29) **Breaking changes in this update!**
+
+ * `\mathrm` (`\mathup`), `\mathit`, `\mathbf`, `\mathsf`, and `\mathtt` revert to their traditional LaTeX meanings; they are set up to match their equivalent text fonts unless specifically set using `\setmathrm` and friends from `fontspec` or the new `\setmathfontface` in `unicode-math`. These commands should be used for *multi*-letter identifiers.
+
+ * New "symbol" commands have been added, `\symrm` (`\symup`), `symit`, ..., to replace the behaviour of the old commands. These should be used for *single*-letter identifiers. See the package documentation for more detail on these and related commands.
+
+ * Package options `mathit=sym`, `mathbf=sym`, etc., reverse the changes above to revert to pre-v0.8 behaviour for `\mathXYZ`. Regardless of package option, `\symXYZ` always maps to symbols and `\mathtextXYZ` is provided for the traditional `\mathXYZ` font switch.
+
+ * New command `\setoperatorfont` to set the font used for commands such as `\sin` and `\cos`. Usage: `\setoperatorfont\mathbf` or any command defined with `\setmathfontface`.
+
+ * Traditional LaTeX `\DeclareMathAlphabet` now works again for legacy font-loading packages.
+
+ * Commands defined to "force" Greek letters with `\upbeta` and `\itbeta`, etc.
+
+ * Assorted bug fixes and minor changes.
+
+
+## v0.7e (2014/06/30)
+
+ * No longer assume fixltx2e has been loaded.
+ * Some ascii math symbols have been renamed with a \math... prefix, such as \mathquestion.
+ * Assume latest luaotfload is being used; no need for a separate unicode-math.lua script.
+ * Assorted typos and minor bugs.
+
+
+## v0.7e (2013/05/04)
+
+ * Track luaotfload updates.
+
+
+## v0.7d (2013/03/16)
+
+ * More expl3 changes missed first time around. (Sorry again.)
+
+
+## v0.7c (2013/02/25)
+
+ * The Latin Modern math font name changed TWICE. Only caught the first one.
+ Sorry for any inconvenience caused.
+
+
+## v0.7b (2013/02/22)
+
+ * Keep in sync with Latin Modern Math font name change.
+ * Keep in sync with expl3 changes.
+
+
+## v0.7a (2012/07/28)
+
+ * Keep in sync with expl3 changes.
+
+
+## v0.7 (2012/05/30): The TeX Live 2012 release.
+
+ * Most changes (and all significant ones) in this release thanks to Khaled
+ Hosny, who is now credited as an author of the package.
+ * Many improvements for XeTeX support to take advantage of the new engine
+ (v0.9998) in TL2012.
+ * As a result, `\resetmathfont` is no longer required.
+ * Improve `\not` to use pre-combined glyphs where possible.
+ * LM Math is loaded by default.
+ * Support bottom accents.
+ * And add `\wideutilde`.
+ * The ‘symbols’ document is somewhat better organised and contains
+ information on whether a symbol is defined in plain TeX or amssymb.
+ * Various other minor fixes and additions:
+ * `\underleftrightarrow` added for fonts that support it.
+ * Don’t overwrite mathtool’s `\overbracket` and `\underbracket`.
+ * Bug in `[range=...]` parsing fixed.
+ * Add `\longdivision`.
+ * Add `\lgroup` and `\rgroup`.
+ * Fix ‘moustache’ delimiters.
+ * `\openbox` renamed to `\mathvisiblespace`, since it is already defined
+ in amsthm as an empty box.
+
+
+## v0.6a (2011/09/19)
+
+ * Always a bug that slips through the cracks! Fixes `\left.` and `\right.`
+ * Add experimental package option `warnings-off=...` which allows warnings
+ to be suppressed on an individual basis.
+
+
+## v0.6 (2011/09/18)
+
+ * Keep in sync with fontspec internals
+ (sorry for the small delay where things were broken)
+ * Keep in sync with expl3 deprecated functions
+ * Math versions (finally) implemented; can now change maths fonts
+ mid-document without reinitialising everything
+ (thanks to Ulrike Fischer and Ulrik Vieth)
+ * Symbols file `unimath-symbols.pdf` now uses maths versions to compare
+ all of the OpenType maths fonts I currently have access to
+ * Over- and under- braces, brackets, and parentheses now work in XeTeX
+ (thanks to Claudio Beccari)
+ * Many internal changes, including a re-write of the `range` feature;
+ it should now be faster and more robust
+ * Tentative programmer's interface for querying the current math style:
+ `\l_um_mathstyle_tl`.
+ * Remove (outdated) interaction with beamer; you must specify
+ `professionalfonts` manually for now
+ * Quieten the console output when loading maths fonts with incomplete maths
+ style coverage
+ * Synonym added: `\lnot` -> `\neg`
+ * Two added Unicode symbols (names tentative): `\blanksymbol` and `\openbox`
+ (thanks to Apostolos Syropoulos)
+ * Fixed literal sub-/super-script input.
+
+
+## v0.5e (2011/07/31)
+
+ * Fix forward compatibility clash with deprecated expl3 functions (sorry)
+ * Command names are now `\protected`; this makes them safe to use in moving
+ arguments and so on
+ * Similarly to the change in v0.5c, the main math font is now loaded in
+ math family zero (equiv. to LaTeX's `operators` math font)
+ * `\mathring` added
+ * Ensure that a math font has been selected in order to prevent problems
+ in minimal documents (this will be unnecessary when the OpenType LM math
+ font is released)
+ * Documentation for which was which of epsilon/varepsilon was backwards!
+ (thank to Rasmus Villemoes for pointing this out)
+ * Spurious `\upUpsilon` removed (the one at U+03A5 is now the correct one)
+ * Typo when defining `\dprime` fixed
+ (thanks to Ulrik Vieth for these last two)
+ * Fix the math class of `\modtwosum`; it is now a large operator
+ (thanks to Michael Ummels)
+ * Move several LuaTeX-related patches to the `lualatex-math` package
+ * Fixed mathtool's `\cramped` in XeLaTeX usage
+
+
+## v0.5d (2011/01/30)
+
+ * Assorted improvements to LuaLaTeX support, including non-growing accents
+ available in LuaTeX v0.65 and later
+ * Improved behaviour with reading and using maths font dimensions
+ * Better compatibility with legacy maths packages and environments
+ (always more worked needed, though)
+ * Fix the default setting for "vargreek-shape"
+
+
+## v0.5c (2010/09/27)
+
+ * Fix a long-standing bug in XeLaTeX in which the "master" math
+ families 2 and 3 weren't being set; hence fraction rules and many other
+ parameters were not being set correctly
+ * Stay in sync with internal fontspec changes
+
+
+## v0.5b (2010/09/19): Tune-up
+
+ * Added missing symbols/synonyms:
+ \diamond \smallint \emptyset \hbar \backepsilon \eth
+ * \overline works for LuaLaTeX
+ * Fix \slash; previously, it overwrote the text definition
+ * \vartriangle now has the correct math class
+
+
+## v0.5a (2010/07/14): TeX Live 2010 release
+
+ * Numerous documentation improvements
+ * Bug fix against stray catcode changes
+ * Add `\mathcal` and `\mathbfcal` as distinct from the Script style;
+ these are only supported by the XITS fonts at present
+ * Small changes to the range of symbols offered (especially note that `\ac`
+ is now `\invlazys` to avoid acronym package clash)
+ * Superscripts are allowed after primes (as they should be)
+ * Numerous LuaLaTeX improvements, including roots and over/under braces.
+
+
+## v0.5 (2010/06/03): Initial CTAN release
+