This is the first alpha release of a major new version of MathJax. This version add significant new functionality, including:
- Support for 11 different fonts, including the STIX2 font set, and a sans-serif font based on the Fira-Math font.
- Support for automatic and explicit line breaks in both display and in-line expressions, breaking of text elements, better breaking in tables and arrays, more array column specifiers for the array preamble, and TeX macros to control line breaking, indentation, and alignment, as well as more commands for making fixed-size boxes in which line breaking can occur.
- Support for HTML embedded in MathML and TeX expressions (e.g., you can insert form elements into the math).
- Improvements to the assistive support by including the expression explorer (activated) in all combined components.
See the release notes for more details.