Apple Releases Safari Technology Preview 209 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 209 includes fixes and updates for Browser, CSS, Rendering, Scrolling, SVG, Text, Web API, Web Extensions, and Web Inspector.

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

wwdc sans text feature

Apple Rumored to Announce New Product on February 19

Thursday February 5, 2026 12:22 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report, citing industry sources, is available in English on Macworld. Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
Apple Logo Zoomed

Tim Cook Teases Plans for Apple's Upcoming 50th Anniversary

Thursday February 5, 2026 12:54 pm PST by
Apple turns 50 this year, and its CEO Tim Cook has promised to celebrate the milestone. The big day falls on April 1, 2026. "I've been unusually reflective lately about Apple because we have been working on what do we do to mark this moment," Cook told employees today, according to Bloomberg's Mark Gurman. "When you really stop and pause and think about the last 50 years, it makes your heart ...
maxresdefault

Apple Shows Off a Key Reason to Upgrade to the iPhone 17

Saturday February 7, 2026 9:26 am PST by
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie. "Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
Finder Siri Feature

Why Apple's iOS 26.4 Siri Upgrade Will Be Bigger Than Originally Promised

Friday February 6, 2026 3:06 pm PST by
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do. The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up. Upgraded Architecture The next-generation...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
While the iOS 26.3 Release Candidate is now available ahead of a public release, the first iOS 26.4 beta is likely still at least a week away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...

Top Rated Comments

Adora Avatar
16 months ago
I like that Orion Browser is using this. ?



Posted by Safari Technology Preview 209.

Attachment Image
Score: 3 Votes (Like | Disagree)
benface Avatar
16 months ago

The past few releases have been quite “slim” when it comes to enhancements.
I noticed that too. I hope it means they're working on big things in the shadows.
Score: 2 Votes (Like | Disagree)
Victor Mortimer Avatar
16 months ago

I like that Orion Browser is using this. ?


I've been using Orion on iOS for a while now, mostly because it gives me uBlock Origin. Browsing without that is horrific.

I'll keep using Firefox on Mac.
Score: 2 Votes (Like | Disagree)
DocMultimedia Avatar
16 months ago
When I was young I'd be installing this stuff in a second. Now I'm old and just travel the world. My time for being a geek has ended. ?

I certainly hope you young people keep providing input. In my day it was telling Firefox folks why their plugin APIs were failing. FF 0.92b2 was still the best (and most innovative) browser in history.

Be able to say the same about the next Safari!
Score: 2 Votes (Like | Disagree)
Adora Avatar
16 months ago

I've been using Orion on iOS for a while now, mostly because it gives me uBlock Origin. Browsing without that is horrific.

I'll keep using Firefox on Mac.
Firefox is my main browser too. Even the Nightly version.
Score: 1 Votes (Like | Disagree)
Victor Mortimer Avatar
16 months ago

You have piqued my interest. Can you share a link to the App Store download for this?
Sure.

https://apps.apple.com/us/app/orion-browser-by-kagi/id1484498200

To get full uBlock Origin you have to enable Firefox extensions and install it. Should be obvious in settings.
Score: 1 Votes (Like | Disagree)