Google on Thursday upgraded Chrome, improving the browser's start-up performance and patching two dozen security vulnerabilities.
Chrome 24 contained few major changes. That's typical, as Google usually refreshes its browser every six to eight weeks.
Google called out only a handful of improvements and additions, including faster start-up, another small speed uptick of Chrome's V8 JavaScript engine, and support for MathML (Mathematical Markup Language), which renders math formulas and symbols on browser pages.
The JavaScript performance boost was minor compared to Chrome 23, the version introduced nine weeks ago, but Google boasted that since October 2011, V8's speed has improved by 26%.
Coincidentally, rival Mozilla touted JavaScript enhancements this week too, claiming a new JIT (just in time) compiler improved Firefox 18's speed by 25%.
Chrome 24 also patched 24 vulnerabilities. Its security team labeled 11 of the flaws as "high," Google's second-most-serious threat rating, eight as "medium," and five as "low."