--- title: Safari 26.3 Release Notes framework: safari-release-notes role: article role_heading: Article path: safari-release-notes/safari-26_3-release-notes --- # Safari 26.3 Release Notes Released February 11, 2026 — 26.3 (20623.2.7) ## Overview Overview Safari 26.3 is available for iOS 26.3, iPadOS 26.3, visionOS 26.3, macOS 26.3, macOS Sequoia, and macOS Sonoma. CSS Resolved Issues Fixed a style resolution loop that occurred when a position-try box was inside a display: none ancestor. (163691885) Fixed an issue where anchor-positioned elements repeatedly transitioning from display: block to display: none cause position jumps during animation. (163862003) Fixed an issue where fixed-positioned boxes using position-area were incorrectly included in the scrollable containing block calculation. (164017310) Fixed an issue where text-decoration: underline was rendered too high when text-box-trim was applied to the root inline box. (165945326) Fixed a multi-column layout issue where the widows and text-indent properties are applied cause an incorrect indent on the portion of the paragraph that flows into the next column. (165945497) Fixed an issue where CSS cursors like move, all-scroll, ew-resize, and ns-resize did not display correctly. (166731882) DOM Resolved Issues Fixed incorrect timestamp handling and switched to use the raw touch timestamp. (164262652) HTTP New Features Added support for Zstandard content encoding in Safari 26.3 for iOS, iPadOS, visionOS, and macOS 26.3. (157682304) Media New Features Fullscreen video playback on visionOS now automatically dims your surroundings to help you focus on the content. (164032895) Resolved Issues Fixed an issue where the fullscreen button in visionOS inline video controls did not visually indicate interactivity by extending the glow effect to all button.circular elements. (164259201) Fixed Video Viewer mode for iframe videos on macOS. (164484608) Fixed an issue where Safari could not play live videos when the sourceBuffer content is removed and re-added causing the seek to not complete. (165628836) Rendering Resolved Issues Fixed an issue where positioned or transformed elements containing HDR JPEGs with gain maps would incorrectly render as SDR. (163517157) Safe Browsing Resolved Issues Fixed a bug where if Safe Browsing queried for an entry on the Public Suffix List, and a Safe Browsing vendor responded that the whole effective TLD was unsafe, the whole site would be marked as unsafe. (168155375) Web API New Features Added support for firing an AbortSignal when a NavigateEvent is aborted. (164125292) ## See Also ### Version 26 - [Safari 26.5 Release Notes](safari-release-notes/safari-26_5-release-notes.md) - [Safari 26.4 Release Notes](safari-release-notes/safari-26_4-release-notes.md) - [Safari 26.2 Release Notes](safari-release-notes/safari-26_2-release-notes.md) - [Safari 26.1 Release Notes](safari-release-notes/safari-26_1-release-notes.md) - [Safari 26.0 Release Notes](safari-release-notes/safari-26-release-notes.md)