Apple Releases Safari Technology Preview 218 With Bug Fixes and Performance Improvements - MacRumors
Skip to Content

Apple Releases Safari Technology Preview 218 With Bug Fixes and Performance Improvements

Apple today released a new update for Safari Technology Preview, the experimental browser that was first introduced in March 2016. Apple designed ‌Safari Technology Preview‌ to allow users to test features that are planned for future release versions of the Safari browser.

Safari Technology Preview Updated Feature 1
‌Safari Technology Preview‌ 218 includes fixes and updates for CSS, JavaScript, Lockdown Mode, Rendering, SVG, Web API, Web Extensions, Web Inspector, and WebRTC.

The current ‌Safari Technology Preview‌ release is compatible with machines running macOS Sonoma and macOS Sequoia, the newest version of macOS.

The ‌Safari Technology Preview‌ update is available through the Software Update mechanism in System Preferences or System Settings to anyone who has downloaded the browser from Apple's website. Complete release notes for the update are available on the Safari Technology Preview website.

Apple's aim with ‌Safari Technology Preview‌ is to gather feedback from developers and users on its browser development process. ‌Safari Technology Preview‌ can run side-by-side with the existing Safari browser and while it is designed for developers, it does not require a developer account to download and use.

Popular Stories

Safari Technology Preview Updated Feature 1

Apple Releases Safari Technology Preview 242 With Bug Fixes and Performance Improvements

Thursday April 23, 2026 1:59 pm PDT by
Apple today released a new update for Safari Technology Preview, the experimental browser that was first introduced in March 2016. Apple designed Safari Technology Preview to allow users to test features that are planned for future release versions of the Safari browser. Safari Technology Preview 242 includes fixes and updates for Accessibility, CSS, Forms, HTMl, Images, JavaScript, Media,...
Safari Technology Preview Updated Feature 1

Apple Releases Safari Technology Preview 243 With Bug Fixes and Performance Improvements

Thursday May 7, 2026 2:03 pm PDT by
Apple today released a new update for Safari Technology Preview, the experimental browser that was first introduced in March 2016. Apple designed Safari Technology Preview to allow users to test features that are planned for future release versions of the Safari browser. Safari Technology Preview 243 includes fixes and updates for Accessibility, Animations, CSS, Editing, Encoding, Forms,...
Dynamic Island iPhone 18 Pro Feature

11 Reasons to Wait for the iPhone 18 Pro

Monday May 11, 2026 9:01 am PDT by
We're only four months out from the launch of Apple's premium next-generation smartphone lineup, and while we're not expecting a sea change in terms of functionality, there are still several enhancements rumored to be coming to the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth noting is that Apple is reportedly planning a major change to its iPhone release cycle this year, adopting a...

Top Rated Comments

14 months ago
I never understood why Apple updates their first party apps on iPhones only with the entire iOS. Why can they do that on the Mac?
Score: 2 Votes (Like | Disagree)
Rafagon Avatar
14 months ago
This is a veritable milestone. I wonder why they don't do this for iOS as well.

Maybe the new and improved iPadOS will be able to run macOS software.
Score: 1 Votes (Like | Disagree)