📃 August 2025 release notes

Newly available

The following features are newly available:

Selection composed ranges: The window.getSelection().getComposedRanges() method returns ranges that represent the current user selection, even if the selection spans across shadow tree boundaries.

The following features are now widely available:

Container queries: Container size queries with the @container at-rule apply styles to an element based on the dimensions of its container.

The following features are now available in Chrome:

corner-shape: The corner-shape CSS property sets the shape of an element's corners when using border-radius, allowing for shapes other than rounded corners. For example, corner-shape: squircle is a shape in between a square and rounded corner.
Secure payment confirmation: The payment extension of a web authentication credential allows a relying party (such as a bank) to create a credential that can be queried by any merchant origin as part of an online checkout that uses the Payment Request API's secure-payment-confirmation payment method. Also known as SPC.
Speech recognition: The SpeechRecognition API converts audio into text using the device's speech recognition service.

The following features are now available in Chrome Android:

corner-shape: The corner-shape CSS property sets the shape of an element's corners when using border-radius, allowing for shapes other than rounded corners. For example, corner-shape: squircle is a shape in between a square and rounded corner.
Secure payment confirmation: The payment extension of a web authentication credential allows a relying party (such as a bank) to create a credential that can be queried by any merchant origin as part of an online checkout that uses the Payment Request API's secure-payment-confirmation payment method. Also known as SPC.
Speech recognition: The SpeechRecognition API converts audio into text using the device's speech recognition service.

The following features are now available in Edge:

corner-shape: The corner-shape CSS property sets the shape of an element's corners when using border-radius, allowing for shapes other than rounded corners. For example, corner-shape: squircle is a shape in between a square and rounded corner.
Secure payment confirmation: The payment extension of a web authentication credential allows a relying party (such as a bank) to create a credential that can be queried by any merchant origin as part of an online checkout that uses the Payment Request API's secure-payment-confirmation payment method. Also known as SPC.
Speech recognition: The SpeechRecognition API converts audio into text using the device's speech recognition service.

The following features are now available in Firefox:

Scheduler API: The scheduler API provides a way to prioritize all tasks belonging to an application.
URLPattern: The URLPattern API creates patterns that can be matched against URLs or URL components.

The following features are now available in Firefox for Android:

Scheduler API: The scheduler API provides a way to prioritize all tasks belonging to an application.
URLPattern: The URLPattern API creates patterns that can be matched against URLs or URL components.