# What’s New in MathJax v2.3

MathJax v2.3 includes a number of new features, as well a more than 30 important bug fixes.

## Features:

*New webfonts:*MathJax v2.3 adds new webfonts for`STIX`

,`Asana Math`

,`Neo Euler`

,`Gyre Pagella`

,`Gyre Termes`

, and`Latin Modern`

.*Localization improvements:*MathJax has been accepted into TranslateWiki.net. Thanks to the TWN community we could add 12 complete and over 20 partial translations.*MathML improvements:*MathJax’s “Show Math as” menu will now expose the MathML annotation features. There are also two new preview options for the MathML input mode:`mathml`

(now the default), which uses the original MathML as a preview, and`altimage`

, which uses the`<math>`

element’s`altimg`

(if any) for the preview.*Miscellaneous improvements:*A new extension`MatchWebFonts`

improves the interaction with the surrounding content when that uses a webfont. A new configuration method allows configurations to be specified using a regular JavaScript variable`window.MathJax`

.MathJax is now available as a Bower package thanks to community contributions.

## TeX input:

Prevent the TeX pre-processor from rendering TeX in MathML annotation-xml elements. (Issue #484)

Fix sizing issue in

`cases`

environment (Issue #485)

## Fonts:

Fix block-letter capital I (U+2111) appearing as J in MathJax font (Issue #555)

## MathML:

Improved workarounds for MathML output on WebKit (Issue #482)

Handle empty

`multiscript`

,`mlabeledtr`

, and other nodes in Native MathML output (Issue #486)Replace non-standard

`MJX-arrow`

class by new`menclose`

notation (Issue #481)Fix incorrect widths in Firefox MathML output (Issue #558)

Fix display math not being centered in XHTML (Issue #650)

Fix problem when LaTeX code appears in

`annotation`

node (Issue #484)

## HTML-CSS/SVG output

Fix MathJax not rendering in Chrome when sessionStorage is disabled (Issue #584)

Fix

`\mathchoice`

error with linebreaking in SVG output (Issue #604)Fix poor linebreaking of “flat” MathML with unmatched parentheses (Issue #523)

## Interface:

Fix Double-Click zoom trigger (Issue #590)

## Miscellaneous:

Localization: improved fallbacks for IETF tags (Issue #492)

Localization: support RTL in messages (Issue #627)

Improve PNG compression (Issue #44)