coderef

Update frequency media queryBaseline · Widely available

The update CSS media query sets styles based on whether and how fast the user's device can modify display after it has been rendered. For example, you can avoid animations on devices that aren't fast enough to display them smoothly.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Sep 18, 2023. Widely available since Mar 18, 2026.

Browser support

DesktopChrome
1–112Not supported
113+Supportedsince May 2, 2023
Current: 155
Edge
12–112Not supported
113+Supportedsince May 5, 2023
Current: 154
Firefox
1–101Not supported
102+Supportedsince Jun 28, 2022
Current: 157
Safari
1–16.6Not supported
17+Supportedsince Sep 18, 2023
Current: 27
MobileChrome Android
18–112Not supported
113+Supportedsince May 2, 2023
Current: 155
Firefox Android
4–101Not supported
102+Supportedsince Jun 28, 2022
Current: 157
Safari iOS
1–16.6Not supported
17+Supportedsince Sep 18, 2023
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: update.

Feature detection

There’s no simple runtime check for this feature; rely on the support table and test in your target browsers.

Documentation (MDN)

Specification