New Features and Bug Fixes

Safari 17.5 Release Notes
Released May 13, 2024 — 17.5 (19618.2.12)

Overview
Safari 17.5 is available for iOS 17.5, iPadOS 17.5, visionOS 1.2, macOS Sonoma, macOS Monterey, and macOS Ventura.

Accessibility
Resolved Issues

• Fixed a bug preventing VoiceOver word echoing in some text fields. (122451549) (FB13592798)

Animations
Resolved Issues

• Fixed flickering with multiple accelerated animations and direction changes. (117815004)

Authentication
Resolved Issues

• Fixed excludeCredentials property being ignored during a passkey registration request. (124405037)

CSS
New Features

• Added support for the light-dark() color function. (123854183)
• Added support for text-wrap-style: auto/balance/stable. (123854373)
• Added support for @starting-style. (123854536)
• Added support for @supports() syntax for @import rules. (123854667)

Resolved Issues

• Fixed the proximity calculation for implicit @scope. (124640124)
• Fixed the Grid track sizing algorithm logical height computation avoid unnecessary grid item updates. (124713418)
• Fixed any @scope limit making the element out of scope. (124956673)

Forms
Resolved Issues

• Fixed native text fields becoming invisible in dark mode. (123658326)
• Fixed fallback native <select> rendering in dark mode. (123845293)

Media
New Features

• Added support for WebCodecs AV1 when an AV1 hardware decoder is available. (123433815)

Resolved Issues

• Fixed scrolling for an element when a video element with pointer-events: none is placed over it. (118936715)
• Fixed HTML5 <audio> playback to continue to the next media activity when in the background. (121268089) (FB13551577)
• Fixed AV1 to decode in hardware on iPhone 15 Pro. (121924090)
• Fixed audio distortion over internal speakers when streaming content in web browsers. (122590884)
• Fixed firing loadeddata events for <audio> and <video> on page load. (124079735) (FB13675360)

Rendering
Resolved Issues

• Fixed adjusting the size of the scrollable area when changing betwen non-overlay and overlay scrollbars. (117507268)
• Fixed flickering when showing a layer on a painted background for the first time by avoiding async image decoding. (117533495)
• Fixed line breaking before or between ruby sequences. (122663646)

Web API
Resolved Issues

• Fixed mousemove events in an iframe when the mouse is clicked from outside the iframe and then moves into it while the button is held down. (120540148) (FB13517196)

Web Apps
Resolved Issues

• Fixed several issues that caused Web Push to not show notifications when the web app or Safari was not already running. (124075358)

Web Inspector
Resolved Issues

• Fixed info and debug buttons not appearing in the Console Tab until new console messages are displayed. (122923625)

WebGL
New Features

• Added support for EXT_conservative_depth and NV_shader_noperspective_interpolation. (123854629)

WebRTC
Resolved Issues

• Fixed WebCodecs to correctly use the VP9 hardware decoder. (123475343)
• Fixed no incoming video in Teams VA. (124406255)
• Fixed the camera pausing occasionally when torch is enabled. (124434403)

WKWebView
New Features

• Added logging MarketplaceKit errors to the JavaScript console to make errors easier to debug. (123475774)</video></audio></audio></select>