Apple Releases Safari Technology Preview 248 With Bug Fixes and Performance Improvements - MacRumors
Skip to Content

Apple Releases Safari Technology Preview 248 With Bug Fixes and Performance Improvements

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 Updated Feature 1
‌Safari Technology Preview‌ 248 includes fixes and updates for Accessibility, CSS, Editing, Forms, Images, JavaScript, Media, Navigation, Networking, Rendering, SVG, Scrolling, Security, Storage, Web API, Web Inspector, WebDriver, and WebRTC.

The current ‌Safari Technology Preview‌ release is compatible with machines running macOS Tahoe and macOS Golden Gate, 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.

Tag: Safari Technology Preview

Popular Stories

All Screen iPhone 2030 Feature Sans Text

iPhone 18 Pro: Nine Reasons Not to Upgrade This Year

Monday September 7, 2026 5:01 am PDT by
Apple is set to unveil new iPhone 18 Pro and iPhone 18 Pro Max models on Wednesday, September 9, and the devices are expected to feature a design that's largely similar to the iPhone 17 Pro models, with a peppering of enhancements inside. Major changes are not expected until next year, when Apple is expected to introduce a radically redesigned 20th-anniversary iPhone. If you're thinking of...
Read Full Article • 106 comments
apple watch series 12

Leak Hints at Four New Features for Apple Watch Series 12 and Ultra 4

Monday September 7, 2026 8:57 am PDT by
Ahead of the announcement of the Apple Watch Series 12 and Ultra 4 later this week, code in the watchOS 27 and iOS 27 betas points to a series of new features for the product line. The information comes from a new post from MacRumors forums member "pdfu." The findings include: New "Readiness" app: An all-new separate Watch app referred to in code as "Readiness," distinct from the...
Read Full Article • 107 comments
iPhone 18 Pro Dark Cherry Feature

iPhone 18 Pro Reportedly Starts With 256GB of Storage

Thursday September 3, 2026 9:22 am PDT by
While the iPhone 17 Pro has double the base storage compared to the iPhone 16 Pro, there will apparently be no further increase this year. Taiwanese research firm TrendForce today again reported that the iPhone 18 Pro models will start with 256GB of storage, like the iPhone 17 Pro models. Minimum storage capacities by model:iPhone 16 Pro: 128GB iPhone 17 Pro: 256GB iPhone 18 Pro...
Read Full Article

Top Rated Comments

G
gummybear2026
7 weeks ago
The lack of innovation in Safari is ridiculous at this point.
Score: 3 Votes (Like | Disagree)
G
gummybear2026
7 weeks ago

I've been using Edge and Firefox on Windows and Mac since 2013 and I'd like to hear more about these innovations because I haven't seen them yet.
Firefox

Smart Window: An optional AI assistant providing fast page summaries, definitions, and product comparisons without page redirection.
Shake to Summarize: Mobile feature on iOS allowing users to physically shake their device or tap the address bar for quick text breakdowns.
Split View & Tab Notes: Side-by-side webpage multitasking and embedded note-taking directly onto individual browser tabs

Microsoft Edge

Resource Control: Sleeping tabs and efficiency mode to reduce RAM and CPU usage.
Vertical Tabs: Sidebar layout options for managing heavy tab loads.
Journeys: Automatically groups your past and current browsing activity into distinct topical projects so you can easily pick up where you left off.
Score: 1 Votes (Like | Disagree)
PsykX Avatar
PsykX
7 weeks ago

Chrome is always innovating along with Zen, SigmaOS, Brave, Firefox, Edge, Comet, Opera, etc.
I've been using Edge and Firefox on Windows and Mac since 2013 and I'd like to hear more about these innovations because I haven't seen them yet.
Score: 1 Votes (Like | Disagree)
S
striderz
7 weeks ago
Still slower than Chrome, although the rendering quality is always top notch with Apple.
Score: 1 Votes (Like | Disagree)
G
gummybear2026
7 weeks ago

I'd like the rendering engine to be swapped out with Chromium. And evergreen updates.
Webkit rending engine is horrible but it provides cover for Apple to have the most basic browser.
Score: 1 Votes (Like | Disagree)
G
gummybear2026
7 weeks ago

What would you want to see in a future innovative version of Safari? I use Safari because it is simple and efficient, not innovative - I feel like the innovative part is handled pretty well by other browsers.
AI should be implemented in it. Advanced customizations, extensions like ublock orgin and cross-platform compatibility.
Score: 1 Votes (Like | Disagree)
Read All Comments