# Upgrading Mathjax to version 4

**URL:** https://meta.discourse.org/t/upgrading-mathjax-to-version-4/392669
**Category:** Development
**Tags:** math
**Created:** [November 23, 2025, 5:57pm UTC](https://meta.discourse.org/t/upgrading-mathjax-to-version-4/392669 "2025-11-23T17:57:05Z")
**Posts on this page:** 1
**Showing post:** 24

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [January 4, 2026, 9:38pm UTC](https://meta.discourse.org/t/upgrading-mathjax-to-version-4/392669/24 "2026-01-04T21:38:55Z")

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Thanks so much Mark, I went ahead and merged your commits, will have a look at the Katex thing toda

> [@Discourse Math](https://meta.discourse.org/t/discourse-math/65770/263):
>
> Here, by the way, is an example of mathematical proofreading via AI in this development version in action:

Is this just via a custom prompt for the proofreader persona?

> [@Ethsim2](#):
>
> Before doing so, I wanted to ask what the recommended environment is at this stage - whether early testing in a production-like setup l is appropriate, or whether you’d prefer this to be done using a development environment until the first production release.

I would not worry about it, Mark and I have this under control.

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