# Accessibility Checker upgraded to Axe Core 4.10

> Canonical HTML version: https://rocketvalidator.com/blog/accessibility-checker-upgraded-to-axe-core-4.10
> Attribution: Rocket Validator (https://rocketvalidator.com)
> License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

The Accessibility validation server on Rocket Validator has been upgraded to Axe Core 4.10, which adds a new rule for the summary element and fixes some bugs from previous versions.

<p>We've upgraded our Accessibility validation servers to the latest version of <a rel="nofollow" href="https://github.com/dequelabs/axe-core">axe-core</a>, 4.10, which adds a new rule for the summary element and fixes some bugs from previous versions.</p>

As usual, you don't need to do anything on your side to update, we've upgraded our servers with this version so they'll run automatically in your next reports.

## New rule: Summary must have discernible text

The new accessibility rule in the 4.10 Axe Core ruleset checks that all `summary` elements used as a control for a `details` element must have a discernible, accessible name.

Read the guide for [Summary must have discernible text](https://rocketvalidator.com/accessibility-validation/axe/4.10/summary-name).

## Full Changelog

Check out the [4.10.0 release notes](https://github.com/dequelabs/axe-core/releases/tag/v4.10.0).

## Current accessibility ruleset

Check out the full list of accessibility rules that are being checked currently by our web crawler

<a href="https://rocketvalidator.com/accessibility-validation/axe">Accessibility rules checked by Rocket Validator</a>.
