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Changelog

All notable changes to this project will be documented in this file. This CHANGELOG roughly follows the guidelines from www.keepachangelog.com.

0.16.8 (2023-06-24)

Features

  • expose error length and raw error message on ParseError (#3820) (710774a)

0.16.7 (2023-04-28)

Bug Fixes

  • docs/support_table.md: delete redundant "varPsi" (#3814) (33a1b98)

0.16.6 (2023-04-17)

Bug Fixes

0.16.5 (2023-04-17)

Features

  • __defineFunction API exposing internal defineFunction (#3805) (c7b1f84), closes #3756

0.16.4 (2022-12-07)

Bug Fixes

0.16.3 (2022-10-22)

Bug Fixes

0.16.2 (2022-08-29)

Bug Fixes

  • auto-render: concatenate content of successive text nodes (#3422) (4d3fdd8)
  • Implement \pmb via CSS text-shadow (#3505) (176552a)

0.16.1 (2022-08-28)

Bug Fixes

0.16.0 (2022-06-06)

Bug Fixes

  • copy-tex: Use JS (instead of CSS) to select full equation, solving display glitches (#3586) (8c2d852)

BREAKING CHANGES

  • copy-tex: copy-tex extension no longer has (or requires) a CSS file.

0.15.6 (2022-05-20)

Features

0.15.5 (2022-05-20)

Bug Fixes

0.15.4 (2022-05-20)

Features

  • Support Unicode (sub|super)script characters (#3633) (d8fc35e)

0.15.3 (2022-03-13)

Bug Fixes

  • Apply operator spacing to Unicode ∙ ∘ ∖ (#3584) (b362fc0)

0.15.2 (2022-01-12)

Bug Fixes

0.15.1 (2021-10-31)

Features

0.15.0 (2021-10-31)

Features

BREAKING CHANGES

  • \relax is now implemented as a function. It'll stop expansions and parsing, so the behavior around \relax may change. For example, \kern2\relax em will no longer work.

0.14.1 (2021-10-30)

Bug Fixes

0.14.0 (2021-10-30)

Features

BREAKING CHANGES

  • With module loaders that support conditional exports and ECMAScript modules, import katex from 'katex'; will import the ECMAScript module.

You can now use:

Before After
require('katex/dist/contrib/[name].js') require('katex/contrib/[name]')
import katex from 'katex/dist/katex.mjs' import katex from 'katex'
import 'katex/dist/contrib/[name].mjs' import 'katex/contrib/[name]'

0.13.24 (2021-10-30)

Bug Fixes

0.13.23 (2021-10-30)

Bug Fixes

  • fonts: correct width of \cong glyph, fix \boldsymbol{\cong} (#3206) (35db4ff), closes #2199

0.13.22 (2021-10-30)

Bug Fixes

  • deps: update dependency commander to v8 [skip netlify] (#3374) (4df1922)

0.13.21 (2021-10-29)

Bug Fixes

  • fonts: fix the timestamp of fonts to the epoch (#3370) (dde05db)

0.13.20 (2021-10-26)

Performance Improvements

0.13.19 (2021-10-26)

Features

0.13.18 (2021-09-02)

Features

0.13.17 (2021-09-01)

Bug Fixes

0.13.16 (2021-08-28)

Bug Fixes

0.13.15 (2021-08-28)

Features

0.13.14 (2021-08-28)

Bug Fixes

0.13.13 (2021-07-21)

Bug Fixes

  • add namespace for svg, making output XHTML+SVG+MathML compatible (#2725) (35ff5ac)

0.13.12 (2021-07-21)

Bug Fixes

  • Correct invalid box-sizing property, adjusting spacing of \angl (#3053) (910e523), closes #3052

0.13.11 (2021-05-14)

Bug Fixes

  • matrix environment with zero or inconsistent columns (#3018) (f779bac), closes #3017

Features

  • Allow text-mode accents in math mode, except in strict mode (#3009) (0e9acce), closes #2983

0.13.10 (2021-05-12)

Bug Fixes

  • Correct for negative margin in integrand lower limits (#2987) (9b4acc9)

0.13.9 (2021-05-07)

Bug Fixes

0.13.8 (2021-05-06)

Features

  • \operatornamewithlimits (and clean up \operatorname support) (#2984) (e9b751b)

0.13.7 (2021-05-06)

Bug Fixes

  • binom delimiter size in scriptscriptstyle. (#2976) (980b004)

0.13.6 (2021-05-06)

Bug Fixes

0.13.5 (2021-05-02)

Bug Fixes

0.13.4 (2021-05-02)

Bug Fixes

  • Avoid crash when \operatorname has \limits (#2979) (fbda0b1)

0.13.3 (2021-04-24)

Bug Fixes

  • Respect catcode in macro expansion and set ~'s catcode correctly (#2949) (01ae7f8), closes #2924
  • array: Keep single empty row in AMS environments (#2947) (24332e0), closes #2944

0.13.2 (2021-04-06)

Bug Fixes

  • update version and SRI in dist/README.md (#2905) (319c52d)

0.13.1 (2021-04-05)

Bug Fixes

  • Protect fraction bars from CSS border-color (#2870) (2f62c0d)

[v0.13.0]

See KaTeX#2490 for breaking changes and migration guide!

Bug Fixes

  • fix: Remove topEnv parameter. (#2712)
  • fix(builder): combine characters together in all expressions (#2080)
  • fix: Prevent global group from adversely affecting color. (#2703)
  • fix: Use SVGs to avoid gaps in tall delimiters. (#2698)
  • fix: rewrite of splitAtDelimiters.js -- new fix for #2523 (#2679)
  • fix: Improve MathML for math operators with subscripts (#2596)
  • fix: Remove premature CD screenshotter images (#2641)
  • fix: Support Armenian characters (#2618)
  • fix: MathML \lim\limits in Safari (#2556)
  • fix: Support MathML \oiint and \oiiint (#2461)
  • fix: \injlim typo (#2459)

Features

  • feat: Support \underbar (#2713)
  • feat: Add {CD} to auto-render. (#2710)
  • feat: Set Auto-render to recognize AMS environments without $$…$$ delimiters. (#2701)
  • feat: Support {CD} (#2396)
  • feat: Support \vcenter and \hbox (#2452)
  • feat(function): add allowedInArgument instead of greediness property (#2134)
  • feat: Support matrix*, pmatrix*, bmatrix*, Bmatrix*, vmatrix*, and Vmatrix*. (#2488)
  • feat(macro): improve argument parsing (#2085)
  • feat: support AMS log-like symbols (#2429)
  • feat: support Unicode ◯, U+25EF (#2430)
  • feat: Support \phase (#2406)
  • feat: Support \mathstrut (#2416)
  • feat: support {equation}, {equation*}, and {split} (#2369)
  • feat(css): use postcss-preset-env (#2313)
  • feat: support {align}, {align*}, {alignat}, and {alignat*} (#2341)
  • Support {gather} and {gather*} (#2183)
  • feat: support MathML \big, \bigg, \Big, and \Bigg (#2332)
  • feat: support \angl and \angln (#2334)
  • Support \origof and \imageof (#2283)

Documentation

  • docs: Add TiddlyWiki to list of users (#2765)
  • docs: Fix fallback CSS classes (#2809)
  • docs: Rearrange environment documentation. (#2700)
  • docs: Explain how to make macros persist. (#2702)
  • docs: Revise placement of colonequals in Relations table (#2704)
  • docs: delete stray backtick (#2680)
  • docs: Add colonequals functions to docs (#2651)
  • docs: add new user link (#2597)
  • fix: typo in example on homepage (#2577)
  • docs: Add \char to support_table. (#2620)
  • docs: Update \operatorname in supported_table.md 0.12.0 (#2571)
  • docs: Fix documentation typo in operatorname* (#2570)
  • docs: add warning re:defer to mhchem documentation (#2485)
  • docs: update Gatsby logo and link (#2481)
  • docs: add MonsterWriter to the users page (#2478)
  • docs: add comment re: \arrowvert (#2449)
  • docs: add link to Discussions (#2405)
  • Update \color documentation (#2370)
  • docs: add Marker as a KaTeX user (#2329)

Other Changes

  • ci: run screenshotter in container (#2644)
  • ci: setup CodeQL code scanning (#2645)
  • fix(browserslist): remove Chrome 49, Samsung 4, and Node (#2591)
  • chore: add devcontainer.json (#2545)
  • Configure Renovate (#2493)
  • ci: don't persist credentials and run scripts (#2450)
  • build: upgrade Yarn to 2.2.0 (#2477)
  • build: make vscode work with PnP (#2444)
  • refactor: Delete obsolete comment re: mn elements (#2472)
  • test: lint all js files and inline scripts in workflow (#2442)
  • refactor: Delete obsolete comment re: limsup (#2464)
  • ci: migrate to GitHub Actions from CircleCI, allow running Browserstack on forked repo via label (#2417)
  • ci: enable Dependabot for website, submodules, and GitHub Actions (#2424)
  • test: add missing screenshots for safari (#2423)
  • ci: fix Dependabot autofix (#2400)
  • chore: don't include dist in the release commit (#2385)
  • ci: autofix Dependabot commits (#2394)
  • chore(screenshotter): support Browserstack and test on Safari 13.1 (#2306)
  • chore: enable Gitpod (#2335)
  • chore: migrate to Yarn 2 (#2316)
  • test: mock console implementation (#2363)
  • Update LICENSE year (#2374)
  • test(screenshotter): move coverage to Jest (#2324)
  • Fix test/symgroups.js (#2314)
  • Use base revision provided by CircleCI (#2309)
  • Delete bower.json (#2372)
  • Enable a MathML option in the KaTeX demo. (#2371)
  • Create dependabot.yml (#2311)
  • Run screenshotter using Chrome 83 and Firefox 76 (#2304)

[v0.12.0]

Added

  • globalGroup option to place definitions in global scope (#2091)
  • \cal (#2116)
  • {rcases} and {drcases} (#2149)
  • HTML extension (#2082)
    • HTML extension can be enabled using strict and trust setting. See https://katex.org/docs/options.html for more details. Please review its security implication before enabling the extension.
  • \message, \errmessage, and \show for debugging (#2135)
  • bra-ket notation (#2162)
  • \expandafter, \noexpand, \edef, \let, and \long (#2122)
  • Support MathML display mode (#2220)
  • \minuso (#2213)

Changed

  • Update documentation (#2086, #2108, #2107, #2106, #2143, #2178, #2195, #2231, #2239, #2263, #2279, #2289, #2280. #2269, #2294, #2296, #2297)
  • mathtex-script: Use html 'defer' attribute (#2069)
  • auto-render: do not touch text nodes w/o formulas (#2154)
  • Move \global and \def to functions (#2138)
  • Cleanup font build scripts & font updates (#2155, #2171, #2156)
    • BREAKING CHANGE: old-style numerals are now available via \mathnormal instead of \mathcal
  • Upgrade minimum development Node version to v10 (#2177)

Removed

  • BREAKING CHANGE: IE 9/10 support (#2136)

Fixed

  • Set border-collapse: collapse in vlist, fix misalignment in table (#2103)
  • \@ifnextchar consumes spaces (#2118)
  • Add spacing on left of fleqn display math (#2127)
  • Fix \boxed inherited color (#2130)
  • Fix laps having visible width in Safari (#1919)
  • Improve MathML for corners (#1922)
  • auto-render: ignore "option" tags (#2180)
  • Fix delimiter error message (#2186)
  • Fix under accent depth (#2252)
  • Enable empty environment (#2258)
  • Enable an empty \substack (#2278)
  • Fix jagged parentheses (#2234)
  • \boldsymbol not italic for textords such as Greek (#2290, #2299)
  • Protect fraction bars from CSS border-color (#2292)
  • Reset to leftmost spacing mode after newline (#1841)
  • Fix missing metrics for space (0x20) and no-break space (0xa0) (#2298)

[v0.11.1]

Changed

  • [Security] Bump mixin-deep from 1.3.1 to 1.3.2 (#2090)
  • [Security] Bump eslint-utils from 1.3.1 to 1.4.2 (#2089)

Fixed

  • Fix parse timing by separating consume() into fetch() and consume() (#2054)
  • Use current font for accents (#2066)
  • Fix \gray's macro definition (#2075)

[v0.11.0]

Added

  • BREAKING CHANGE: trust setting to indicate whether input text is trusted (#1794)
    • \href and \url will break without adjusting the trust setting
  • Add test for double square brackets to katex-spec (#1956)
  • Add option to render only MathML so that its visible (#1966)
  • Support {smallmatrix}, {subarray}, and \substack (#1969)
  • Enable minRuleThickness in rendering options (#1964)
  • Add \plim (#1952)
  • Support Unicode \digamma (#2010)
  • Support \operatorname* (#1899)
  • Support \includegraphics, with appropriate trust setting (#2053)
  • Add render-a11y-string add-on (#2062)

Changed

  • DOC: Fix path to built file (#1976)
  • Remove unclosed TODO comment (#1979)
  • Add "Tutti Quanti Shelf" app to users page (#1997)
  • Document mhchem \cf not supported (use \ce instead) (#2008)
  • Replace greenkeeper badge with dependabot badge (#2022)
  • Add Unicode digamma to documentation (#2045)
  • Add katex-expression to libs page (#2049)
  • Suggest in documentation (#2052)
  • Unicode characters in math render in text mode (#2040)

Fixed

  • Improve output of fonts in MathML (#1965)
  • Fix \pmb (#1924)
  • \color affects following \right, put array cells in their own groups (#1845)
  • Improve MathML for classes (#1929)
  • Prevent gaps in tall delimiters (#1986)
  • Fix \sqrt SVG path (#2009)
  • Do not force sizing groups to display inline-block (#2044)
  • Fix font choice in operators like \log (e.g. \boldsymbol{\log}) (#2041)
  • Fix argument font sizing in \fbox and \raisebox, fix font sizing in \TeX, \LaTeX, \KaTeX (#1787)

[v0.10.2]

Added

  • Approximate font metrics only when metrics don't exist (#1898)
  • Add KaTeX version to stylesheet and troubleshooting guide (#1893)
  • Add symbol double square brackets (#1947, #1954)
  • Support double-square curly braces (#1953)

Changed

  • Upgrade minimum development Node version to v8 (#1861)
  • Disable @babel/env debug (#1874)
  • Add issue templates (#1862)
  • Added 'katex-element' (#1905)
  • Fix Users' logo and url (#1896)
  • Load fonts before running screenshotter (#1891)
  • Add Browserstack logo (#1879)
  • Added Android library (#1943)
  • Move custom colors used by Khan into macros.js (#1933)
  • Test for duplicate symbols/macros (#1955)
  • Include extensions mhchem & copy-tex in home-page (#1932)

Fixed

  • Fix \Rho (#1870)
  • Fix nested \dfrac (#1825)
  • Improve MathML accents (#1877)
  • Improve MathML for \overset, \stackrel, and \underset (#1886)
  • Fix \not (U+E020) RBearing (width) (#1878)
  • Fix ApplyFunction character (#1890)
  • Improve MathML for \limits (#1897)
  • Improve MathML for \hphantom and \vphantom (#1883)
  • Improve MathML for \coloneqq, \dblcolon, \eqcolon, and \eqqcolon (#1889)
  • Improve MathML for \brace (#1884)
  • Fix \middle spacing (#1906)
  • Get a tall \middle\vert from MathML (#1911)
  • Improve more coloneq (#1902)
  • Make \smallint small in \displaystyle (#1907)
  • Improve MathML for characters in Unicode private use area (#1908)
  • Improve MathML for extensible arrows (#1901)
  • Improve MathML for \rule (#1912)
  • Improve MathML for fractions (#1882)
  • Improve MathML for \tag (#1915)
  • Improve MathML for \colorbox and \fcolorbox (#1914)
  • Improve MathML for environments (#1910)
  • Improve MathML for \genfrac barline (#1925)
  • Support \textup and \textmd (#1921)
  • Improve MathML for \not (#1923)
  • Improve MathML for \Bbbk (#1930)
  • Prevent inadvertent tall delims (#1948)

Removed

  • Re-added code for \includegraphics but disabled the function until trust settings is merged (#1951)

[v0.10.1]

Added

  • ECMAScript module for contrib (#1624)
  • mhchem extension (#1436)
  • auto-render: optional pre-process callback (#1784)
  • \argmax and \argmin (#1820)
  • \textbackslash and \textasciicircum (#1839)
  • leqno and fleqn support (#1814)

Changed

  • Include only necessary fonts for target environment specified by Browserslist (#1674)

Fixed

  • Support blackboard bold in text mode (#1757)
  • Fix spacings in semisimple groups (#1706)
  • Fix parsing comments (#1789)
  • Fix \ and \newline after operator (#1796)
  • Fix \hphantom width (#1809)
  • Remove double encoding in MathML (#1813)
  • Fix Unicode bigcup (#1836)
  • Fix \genfrac w/ empty delimiter arguments (#1816)
  • \fbox inherits default color (#1847)
  • Fix \not and \neq on Chrome 72 (#1852)

[v0.10.0]

Added

  • Unicode: °, delimiters, 1D400-1D7FF, \ll, \lll, ≘≙≚≛≝≞≟, Unicode Mathematical Alphanumeric Symbols, ⟂ ¬ ⊨ ‼ ∌ ≲ ⩽ ⪅ ≶ ⋚ ⪋, corner, ⟦⟧ (#1203, #1207, #1260, #1273, #1274, #1232, #1377, #1389, #1459, #1750)
  • \yen support on text mode (#1208)
  • \( (#1213)
  • Add defineSymbol to the main katex object (#1263)
  • Capital Greek letters (#1283, #1285)
  • Add version to katex object (#1279, #1475)
  • \copyright, \textregistered, \textcircled (#1073)
  • Tilde \textasciitilde (#1286)
  • Line breaks for inline formulas (#1287)
  • \hline (#1306)
  • Top-level \newline and \\ in inline math (#1298)
  • Strict mode, unicode text in math mode (#1117, #1278)
  • Strict setting for \newline display-mode behavior (#1314)
  • Allow all Unicode symbols in nonstrict mode (#1217)
  • \tag, \tag*, and \gdef (#1309)
  • \def, \gdef, and \global\def (#1348, #1425)
  • Change default maxExpand limit to 1000 (#1383)
  • \cfrac (#1392)
  • \arraystretch as a macro definition (#1381)
  • Add ability to create a dashed vertical line in arrays, using ':' (#1395)
  • \widecheck (#1406)
  • \hdashline (#1407)
  • \newcommand, \renewcommand, \providecommand (#1382)
  • Add a utility function (setFontMetrics) to extend builtin fontMetrics (#1269)
  • \oiint and \oiiint (#1430)
  • Remove match-at dependency, use RegExp for lexer (#1447)
  • \brace and \brack (#1453)
  • Allow only allowed protocols in \href (#1440)
    • BREAKING CHANGE: Only "http", "https", "mailto", and relative URLs are allowed in \href and \url by default.
  • \genfrac and \above (#1455, #1458)
  • \char character escaping and nicer MathML via \html@mathml (#1454)
  • @binrel (#1487)
  • \pmb (#1418)
  • KaTeX website & documentation (#1484, #1515, #1518, #1514, #1526, #1516, #1519, #1527, #1564, #1566, #1584, #1571, #1642, #1680, #1683, #1688, #1631, #1727)
  • Improve supported functions documentation (#1511, #1517, #1532, #1533, #1576, #1556, #1580, #1602)
  • Alpha sorted function support page (#1536)
  • MediaWiki (texvc) (#1558)
  • Add ignore option for class names in auto-render (#1555)
  • ScrollSpy for table of contents in the documentation (#1557, #1567, #1568)
  • Build ECMAScript modules (#1479, #1622, #1653)
  • Enable environment variable USE_TTF to disable bundling TTF fonts (#1600)
  • List of KaTeX users (#1569, #1579)
  • Browserslist (#1662)
  • 6-digit color without # (#1690)
  • \mathnormal (#1700)
  • \lparen and \rparen (#1741)
  • \> (#1752)

Changed

  • Port to @flow: delimiter, spacingData, unicodeSymbols, buildHTML, buildMathML, parseNode, defineFunction, CssStyle (#1177, #1195, #1206, #1239, #1247, #1276, #1312, #1324, #1361, #1373, #1393, #1386, #1387, #1408, #1478, #1486, #1534, #1541, #1542, #1551, #1552, #1554, #1559, #1606, #1609, #1612, #1637, #1684)
  • Online screenshot diff/generation using CircleCI (#1187)
  • Add display/displayMode toggle on test page (#1193)
  • Change CDN links (#1243)
  • Changelog for KaTeX (#1322)
  • Move test helpers into common modules (#1318)
  • Move function handlers to functions/ (#1323, #1325, #1328, #1329, #1331, #1327, #1334, #1339, #1349, #1359, #1332, #1335)
  • Improve screenshotter (#1220, #1644, #1643)
  • Upgrade to webpack 4 (#1337, #1435)
  • Automatic submodule updating via husky tool (#1391)
  • Refactor test helpers (#1336)
  • Change build directory to dist and cleanup NPM scripts (#1500, #1610)
  • Switch from nomnom to commander (#1496)
  • Add test job to CircleCI (#1235, #1658)
  • Switch npm to Yarn (#1522, #1528)
  • Improve release script & enable versioning documentation (#1521, #1603, #1660, #1665)
  • Enable stylelint-config-standard, lint CSS files (#1575)
  • Rename Screenshotter -> screenshotter (#1573)
  • Refactor buildCommon (#1633, #1640)
  • Upgrade to Babel 7 (#1595)
  • Refactor Parser (#1711, #1723)

Fixed

  • Fix nested math mode in non-default text mode (#1111)
  • Fix contenteditable mode (#1179)
  • Work around negative space bug in Chrome (#1194)
  • Fix \nobreakspace (#1200)
  • Fix instant mode switching for $, (, \text (#1213)
  • Add metrics for \S and \P (#1224)
  • Fix anchor.toMarkup (#1246)
  • Specify height for SVG elements (#1252)
  • Include Bold-Italic fonts for \boldsymbol (#1257)
  • Fix space width in \texttt (#1261)
  • Fix \underset (#1277)
  • Remove special \verb space handling now that space is in Typewriter-Regular (#1258)
  • Switch makeGlue from .mord .rule to .mspace (#1295)
  • Fix ~ in \verb (#1286)
  • Stop throwing ParseError when throwOnError is false (#1169, #1302, #1308)
  • Fix extensible arrow sup vertical alignment (#1256)
  • Adjust \underset alignment and spacing (#1290)
  • Revert frac-lines and \rule to borders (min-height) (#1249, #1417, #1594)
  • Fix vertical alignment of \underbrace (#1304)
  • Use one strut instead of two (#1307)
  • Fix MacroExpander space handling (#1314)
  • Cleanup MathML <mrow>, <mtext>, <mn> (#1338)
  • Fix lap vertical alignment. (#1162)
  • Fix nested \tfrac (#1370)
  • Fix \coloneq etc (#1372)
  • Fix wide character spacing (#1371)
  • Fix auto-render \[…] bug (#1375)
  • Rewrite spacing commands as macros (#1156)
  • Enable output modules to be used in browser or Node (#1401)
  • Add vertical kern to \vdots (#1402)
  • Implement \neq and \notin via macros like LaTeX's (#1400, #1499)
  • Improve \cancel (#1398)
  • Fix ligatures vs. \tt (#1379)
  • Implement \colon as amsmath does (#1410)
  • Automatic mrel/mbin spacing for \boldsymbol (#1388)
  • Phantom text (#1449)
  • Fix arrowheads for mhchem <--> (#1451)
  • Set documentFragment.style to empty object (#1471)
  • Remove tree cloning before building HTML (#1470)
  • Fix \operatorname to support general math functions (#1461)
  • Use \not character without left side-bearing correction (#1267)
  • Remove codes that require expensive polyfill (#1469, #1563, #1591, #1597)
  • Fix \not vertical alignment (#1497)
  • Comments without terminating newlines, \href fixes, \url support (#1529)
  • Fix \textdaggerdbl (#1539)
  • Fix \neq (#1548, #1574)
  • Fix wide characters (#1549)
  • Fix \fbox (#1550)
  • Fix \Large roots (#1485)
  • index.html: replace font, make responsive, improve demo (#1547, #1577, #1615, #1601)
  • Remove duplicate defineFunction invocation for \mathop (#1701)
  • Fix tag positioning to live within katex-html parent (#1721)
  • Fix \mathit font and italic correction (#1700)

[v0.9.0] - 2018-02-18

Added

  • Italic Greek capital letters #1118
  • Added support for \mathring #1125
  • Added support for unicode angle brackets, single vertical bar, double vertical bar #1123
  • Added support for Reaction Arrows #1078
  • Added \nobreakspace #1145
  • Added support for Unicode colon equals ≔ #1151
  • Added support for \underline in text mode #1159

Changed

  • Enable spacing functions in text mode #1139

Fixed

  • Improved JS spacing #1103
  • Fixed handling of Unicode characters ð, Å, å #1157
  • Padding over \sqrt and Paths for frac-line #1143

[v0.9.0-beta1] - 2018-01-28

Added

  • Added support for \aa, \AA, \lq, \rq, \lbrack, \rbrack #1069
  • Added support for more scripts in \text{} environments such as Czech, Georgian, Hungarian, Turkish. #1076
  • add Main-BoldItalic font to allow nesting of \textit and \textbf
  • Added \S and \P #1110

Changed

  • Remove symlink to support devs using Windows #1090

Fixed

  • Do not inherit SVG style properties from the environment. #1089
  • Update fonts and metrics so that accents are positioned correctly #1094
  • Non-portable use of String method .includes. Fixed #1093
  • Use correct spacing with tight styles. See #1106 for more details.

[v0.9.0-beta] - 2018-01-14

Added

  • \kern fixed and support \hskip, \TeX, \LaTeX, \KaTeX. See #974
  • Supported Unicode middle dot and Unicode accents.
  • Added basic support for Indic scripts in addition to CJK. #1060
  • Added support for bold italic symbols. #1011
  • add \ae, \AE, \oe, \OE, \o, \O, \ss with unicode support for those characters in text mode. #1030
  • Added \i and \j for text mode. #1029
  • Added buildHTMLTree. #1022
  • Implemented \TextOrMath, @secondoftwo. #1024
  • Added a 'common issues' section to the README.md. #1034

Changed

  • Made a more working example in README.md. Fixed #1049 PR is #1050
  • Exposing the build tree. #1017
  • Changed \xLongequal to \xlongequal. #997

Fixed

  • Avoid negative space in \bmod. #984
  • Stacking text commands. #1009
  • Fixed \vec by replacing the combining font glyph with an SVG. #1018
  • Made accents zero width. #1033
  • Fixed frac-line. #1025
  • Implemented correct macros for liminf and limsup. Fixed #111
  • \kern generates right-margin instead of left-margin. Fixed #995

[v0.9.0-alpha2] - 2017-11-26

Added

  • Added Unicode Relations and Unicode Symbol support. Supports Unicode ∴, ∵, \mid, Arrows, Big Operators, Binary Operators, Negated Relations.
  • Implemented the alignedat environment for flexible math spacing. #930
  • Implemented \mathchoice command. #969
  • Implemented \href command. #923
  • \hspace*, \@ifstar, \@ifnextchar, \@firstoftwo (#975)
  • Added \notni character ∌. #710
  • Added ng-katex link to README.md. #959

Changed

  • Single-character macros like active characters. #973
  • Re @flow:
    • Port buildTree, katex, mathMLTree, parseTree, stretchy to @flow.

Fixed

  • Fixed the spacing between columns in the {aligned} environment. #942
  • Fixed issue where the {aligned} environment skips the last line if the first column is empty. #949
  • Appended ApplyFunction to math functions in MathML. #960
  • Changed \undertilde to \utilde. #948
  • Changed frac-line from border to full span. #976

[v0.9.0-alpha1] - 2017-10-15

Changed

  • Edited link to Function Support page. #922
  • Re @flow:
    • Exported svgGeometry to @flow. #936
    • Ported utils to @flow. #935

Fixed

  • Fixed space handling. #912
  • Prevents disappearing fraction lines. #931

[v0.9.0-alpha] - 2017-10-05

Added

  • Added MathJax compatibility script. #680
  • Added a maxSize option to limit user-specified sizes. #803
  • Added \smash, laps, spaces, and phantoms. #833
  • Support for \raisebox, \operatorname, \And, \colorbox, \fcolorbox and \verb.
  • Added support for comments. Fixed #20
  • To @flow:
    • fontMetrics, fontMetricsData, Token, Lexer, MacroExpander, Options, ParseError, ParseNode, Settings, Style.

Removed

  • Removed the positions array computed by Parser's parseArguments(). #864

Changed

  • Advanced macro support and magic \dots. #794
  • Allow sizing commands inside optional groups. #885
  • Upgraded \sqrt zoom and width. #890
  • Refactored defineEnvironment to also accept HTML and MathML builders. #875
  • For @flow:
    • Ported environments.js, functions.js, symbol.js, unit.js.
  • Separated mandatory and optional arguments in parseArguments. #903

Breaking Changes

  • Require [text]color HTML colors to be well-formed. See #827
  • \llap and \rlap now render contents in math mode. Use \mathllap (new) and \mathrlap (new) if you need the previous behavior.

Fixed

  • Fixed exponential behavior in accent production. #834
  • Use mpadded for \raisebox MathML. #876
  • Array/Matrix environments do not trim newlines. Fixed #337. PR is #479.
  • For @flow:
    • Corrected @flow types. Refactor some Parser code for stricter typing. #896
    • Fixed match-at flow errors. #847

[v0.8.3] - 2017-08-27

Added

  • Added latin-1 letters as math symbols. See #796
  • Added support for \not. #140

Changed

  • Support CJK full-width punctuation + Unicode dots. See #814
  • Support for ' \` ^ ~ = \u . " \r \H \v text-mode accents. See #802
  • Modernized font creation. See #624

Fixed

  • Use inline SVG for stretchy elements. #807
  • Improve \sqrt. #810

[v0.8.2] - 2017-08-17

Added

  • Accepts all existing Greek letters using unicode characters in math mode. See #410

Fixed

  • Fixed MathML output for ' and large operators with limits. #788
  • Updated package.json to point 'main' at dist/katex.js. #791
  • Fixed color support for stretchy, strikethrough, and fbox. #792
  • Detect attachEvent() support correctly. See #771 and #772 for the issue and PR fix respectively.

[v0.8.1] - 2017-08-11

Fixed

  • Note: The v0.8.0 release did not include the SVG images which are necessary for rendering wide and stretchy accents as well as \overbrace and \underbrace. This release corrects that.

  • Note that if you're including copies of KaTeX in your web application, you should now include the dist/images directory in addition to the usual the dist/fonts directory.

[v0.8.0] - 2017-08-11

Added

  • Added some international operators. See #509
  • Old font command support: \rm, \sf, \tt, \bf, \it. #675
  • Builtin macros, macro arguments, \overset and \underset. #605
  • Added \iff, \implies, \impliedby support. #697
  • Support <, >, | and many \text... commands in text mode. #684
  • Implemented $...$ via styling node. #637
  • Added \jot lineskip to aligned environment, switch contents to displaystyle, and add gathered. #725
  • Support stretchy wide elements. #670
  • Set maxFontSize on rules. #744

Changes

  • Added support for Windows high-contrast mode. Fixed #716 #724 -Implemented \coloneqq, \colonequals, etc. based on mathtools and colonequals. #727
  • Added configurable error callback. #658
  • Added support for absolute TeX units. #732
  • Revert "Remove trailing commas for IE 9 compatibility". #622
  • Use utils.deflt for Settings. #649
  • Refactored and commented space splicing code. #699
  • Vertically center single-character \mathop. #745
  • Associate font metrics with Options, not Style. #743
  • Upgraded the source to use ES6 syntax including classes, import and static properties. #679
  • Use \displaystyle within \over/\underbrace. #765
  • Shrinkwrap vlists in table-like CSS. #768
  • Improve rule coding, including for \sqrt. #776

Breaking Changes

  • Implicit \color, explicitly grouped \textcolor. See #619

Fixed

  • Fixed high contrast mode better. #733
  • Fixed all AMS mathord symbols. #618
  • Fixed x'^2 #636
  • Fixed font typo math -> main. #678
  • Fixed spaces before \middle. #689
  • Fixed #711 issue with multiple superscripts. #718
  • Fixed interaction between styles and sizes. #719
  • Correct handling of unbraced kerns followed by spaces. #751
  • Corrected computation of TeX sizes. #755
  • Solved Safari rendering issues with font-size overrides. #780

[v0.7.1] - 2017-01-21

Fixed

  • Restored creation of dist directory during release process.

[v0.7.0] - 2017-01-08

Added

  • Added \atop, \bmod, \degree, \kern, \ldots, \maltese, \mathbin, \mathclose, \mathellipsis, \mathop, \mathopen, \mathord, \mathpunct, \mathrel, \middle, \mod, \pod, \pounds, \pmod, \stackre, \textbf, \textellipsis, \textit, \textnormal, \textrm, \textsf, \texttt, --, ---, ''', ', ​ and "".
  • Added \#, \&, \$, \%, \_, \{, and \} in text mode.

Changed

  • Allow specifying macros (without arguments) in the settings object.
  • Combine adjacent spans in text mode.

Fixed

  • Do not apply italic correction in text mode.
  • Fixed the MathML fence attribute on delimiters.
  • Fixed converting bins to ords.
  • Made \llap and \rlap produce ords.
  • Fixed spacing around \color, \mathbf, and in other places.
  • Added per-style font metrics.
  • Complain when trying to render a non-string.
  • Fixed subscript positioning with changed-font bases.
  • Fixed superscript/subscript centering in fractions.

[v0.6.0] - 2016-04-15

Added

  • Added \gt, \lt and \underline support.
  • Introduced the aligned environment.

Removed

  • Removed 3px border around rules.

Changed

  • Bundle CSS and fonts in npm package.

Fixed

  • Fixed sub- and super-scripts not being centered inside of math display.
  • Set the greediness of font functions to 2 so that e^\mathbf{x} will parse.

[v0.5.1] - 2015-09-01

Added

  • Added the font changing functions \mathrm, \mathit, \mathbf, \mathbb, \mathcal, \mathfrak, \mathscr, \mathsf, \mathtt, \Bbb, \bold, and \frak.
  • Added the \limits and \nolimits functions.
  • Added a throwOnError option to allow generating red error text when rendering invalid commands instead of throwing errors, and a corresponding errorColor option to decide the color of invalid commands.
  • Added support for | column delimiters in the array environment.
  • Added \lVert and \rVert symbols.

Changed

  • Allow \lvert, \rvert, \lVert, \rVert, \lgroup, \rgroup, \lmoustache, and \rmoustache in delimiters.

Fixed

  • Fix the spacing of the \ulcorner, \urcorner, \llcorner, \lrcorner, \barwedge, \veebar, \circledcirc, \boxdot, \uparrow, \Uparrow, \downarrow, \Downarrow, \updownarrow, \Updownarrow, and \ldots symbols.

[v0.5.0] - 2015-07-16

Added

  • Added the cases and Bmatrix environments.
  • Added \checkmark and \circledR symbols.

Changed

  • Ran ttfautohint on our fonts to produce better results at small font sizes.
  • Improved the spacing inside fractions.
  • Correctly set environments to the ord type.

[v0.4.3] - 2015-06-20

Fixed

  • Fixed bower.json to include a "main" entry

[v0.4.0] - 2015-06-18

Added

  • Added support for some \begin/\end environments, including support for array, matrix, pmatrix, bmatrix, vmatrix, and Vmatrix.
  • Added support for optional \sqrt arguments, e.g. \sqrt[3]{x}.
  • Bower package is now available: run bower install katex to download the built files.

Changed

  • Added a display mode flag to the cli.
  • Exposed an unstable __parse method for retrieving the parse tree.
  • Prevent elements from inheriting text-indent.

[v0.3.0] - 2015-04-01

Added

  • Added an auto-render extension for automatically rendering math on a page.
  • Added support for \phantom.
  • Added \#, \&.

Removed

  • Removed !important from MathML hiding rules, so they can be overridden.

Breaking Changes

  • The greediness of the \color function has changed to maintain compatibility with MathJax, so expressions like \color{red}\text{a} will no longer work and instead need to be rewritten as \color{red}{\text{a}}.

Fixed

  • Fixed spacing for \odot, \oplus, \otimes, \oslash, \bigtriangleup, \bigtriangledown, \dagger, \diamond, \star, \triangleleft, \triangleright.
  • Fixed MathML handling of text operators.

[v0.2.0] - 2015-03-02

Added

  • Added accessibility through the use of MathML.
  • Added the ability to render math in display mode, centered on a single line in display style.
  • Added support for new symbols: \aleph, \amalg, \approxeq, \ast, \asymp, \backepsilon, \backprime, \backsim, \backsimeq, \Bbbk, \because, \beth, \between, \bigcirc, \bigstar, \blacklozenge, \blacksquare, \blacktriangle, \blacktriangledown, \blacktriangleleft, \blacktriangleright, \bowtie, \Box, \boxminus, \boxplus, \boxtimes, \bullet, \bumpeq, \Bumpeq, \Cap, \cdotp, \centerdot, \circeq, \circlearrowleft, \circlearrowright, \circledast, \circleddash, \circledS, \clubsuit, \complement, \Cup, \curlyeqprec, \curlyeqsucc, \curlyvee, \curlywedge, \curvearrowleft, \curvearrowright, \dag, \daleth, \dashleftarrow, \dashrightarrow, \dashv, \ddag, \ddagger, \diagdown, \diagup, \Diamond, \diamondsuit, \digamma, \divideontimes, \doteq, \Doteq, \doteqdot, \dotplus, \doublebarwedge, \doublecap, \doublecup, \downdownarrows, \downharpoonleft, \downharpoonright, \ell, \eqcirc, \eqsim, \eqslantgtr, \eqslantless, \equiv, \eth, \exists, \fallingdotseq, \Finv, \flat, \forall, \frown, \Game, \geqq, \geqslant, \gg, \ggg, \gggtr, \gimel, \gnapprox, \gneq, \gneqq, \gnsim, \gtrapprox, \gtrdot, \gtreqless, \gtreqqless, \gtrless, \gtrsim, \gvertneqq, \hbar, \heartsuit, \hookleftarrow, \hookrightarrow, \hslash, \Im, \intercal, \Join, \ldotp, \leadsto, \Leftarrow, \leftarrowtail, \leftharpoondown, \leftharpoonup, \leftleftarrows, \leftrightarrow, \Leftrightarrow, \leftrightarrows, \leftrightharpoons, \leftrightsquigarrow, \leftthreetimes, \leqq, \leqslant, \lessapprox, \lessdot, \lesseqgtr, \lesseqqgtr, \lessgtr, \lesssim, \lgroup, \lhd, \ll, \llcorner, \Lleftarrow, \lll, \llless, \lmoustache, \lnapprox, \lneq, \lneqq, \lnsim, \longleftarrow, \Longleftarrow, \longleftrightarrow, \Longleftrightarrow, \longmapsto, \longrightarrow, \Longrightarrow, \looparrowleft, \looparrowright, \lozenge, \lrcorner, \Lsh, \ltimes, \lvertneqq, \mapsto, \measuredangle, \mho, \mid, \mp, \multimap, \nabla, \natural, \ncong, \nearrow, \nexists, \ngeqq, \ngeqslant, \ngtr, \ni, \nleftarrow, \nLeftarrow, \nleftrightarrow, \nLeftrightarrow, \nleqq, \nleqslant, \nless, \nmid, \nparallel, \nprec, \npreceq, \nrightarrow, \nRightarrow, \nshortmid, \nshortparallel, \nsim, \nsubseteqq, \nsucc, \nsucceq, \nsupseteqq, \ntriangleleft, \ntrianglelefteq, \ntriangleright, \ntrianglerighteq, \nvdash, \nvDash, \nVdash, \nVDash, \nwarrow, \ominus, \owns, \parallel, \perp, \pitchfork, \prec, \precapprox, \preccurlyeq, \preceq, \precnapprox, \precneqq, \precnsim, \precsim, \propto, \Re, \restriction, \rgroup, \rhd, \Rightarrow, \rightarrowtail, \rightharpoondown, \rightharpoonup, \rightleftarrows, \rightleftharpoons, \rightrightarrows, \rightsquigarrow, \rightthreetimes, \risingdotseq, \rmoustache, \Rrightarrow, \Rsh, \rtimes, \searrow, \sharp, \shortmid, \shortparallel, \sim, \simeq, \smallfrown, \smallsetminus, \smallsmile, \smile, \spadesuit, \sphericalangle, \sqcap, \sqcup, \sqsubset, \sqsubseteq, \sqsupset, \sqsupseteq, \square, \Subset, \subseteqq, \subsetneq, \subsetneqq, \succ, \succapprox, \succcurlyeq, \succeq, \succnapprox, \succneqq, \succnsim, \succsim, \Supset, \supseteqq, \supsetneq, \supsetneqq, \swarrow, \therefore, \thickapprox, \thicksim, \triangledown, \trianglelefteq, \triangleq, \trianglerighteq, \twoheadleftarrow, \twoheadrightarrow, \ulcorner, \unlhd, \unrhd, \upharpoonleft, \upharpoonright, \uplus, \upuparrows, \urcorner, \varkappa, \varpropto, \varsubsetneq, \varsubsetneqq, \varsupsetneq \varsupsetneqq, \vartriangle, \vartriangleleft, \vartriangleright, \vdash, \vDash, \Vdash, \Vvdash, \wp, \wr, \yen.

Removed

  • Removed unused greek fonts.

[v0.1.1] - 2014-10-15

Added

  • Added support for \binom
  • Added support for \over and \choose
  • Added \partial, \subset, \supset, \subseteq, \supseteq, \cap, \cup, \setminus, \neg, \lnot, \top, \bot, \emptyset, \varnothing, \land, \lor, \wedge, \vee, \notin, \nsubseteq, \nsupseteq, \models.
  • Added simple katex command-line binary to convert TeX to HTML on the server.
  • Added WOFF2 fonts for faster downloads in Chrome and Opera.

Changed

  • Correctly throws on \sqrt[3]{x} to indicate lack of support.
  • Warn when in quirks mode (i.e., missing a <!DOCTYPE html> declaration).
  • Built files now only use ASCII characters to avoid character encoding problems.

Fixed

  • Fixed spacing for \iint and \iiint.

[v0.1.0] - 2014-09-15

Initial Public Release