Apple Releases Safari Technology Preview 233 With Bug Fixes and Performance Improvements - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Releases Safari Technology Preview 233 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 233 includes fixes and updates for Animations, HTML, MathML, Rendering, Web API, and Web Inspector.

The current ‌Safari Technology Preview‌ release is compatible with machines running macOS Sequoia and macOS Tahoe, 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 248 With Bug Fixes and Performance Improvements

Wednesday July 22, 2026 11:25 am 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 248 includes fixes and updates for Accessibility, CSS, Editing, Forms, Images, JavaScript,...
Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro and iPhone Ultra: Pre-Orders and Release Date

Thursday July 30, 2026 6:12 am PDT by
Apple has yet to reveal when the iPhone 18 Pro and iPhone Ultra will be announced and released, but the dates usually follow a familiar pattern. Labor Day is September 7 this year. The last time the holiday fell on that day was in 2020, but the iPhone event that year was delayed until October due to the COVID-19 pandemic. So, the last time Labor Day was on September 7 in a normal year was in ...
Apple Event Logo

Apple Working on All-New Operating System

Wednesday July 29, 2026 11:39 am PDT by
Apple is developing an all-new operating system that is essentially a mix of tvOS, watchOS, and iOS, according to Bloomberg's Mark Gurman. In a report this week, he said the operating system will feature a grid of icons, widgets, and apps, along with customizable clock faces. The new software platform is intended for Apple's long-rumored smart home hub. With built-in facial recognition,...

Top Rated Comments

9 months ago

Never really was since it’s not a good browser. Firefox is snappier
What do you do guys with your browsers? Browsing competitions? To me, speed is the least important factor in deciding which browser to use. Nowadays they're all pretty fast.
Score: 4 Votes (Like | Disagree)
9 months ago
I look forward to the day when macstories actually offers useful information related to these updates rather than a glorified update notification wrapped as a blog article.
Score: 2 Votes (Like | Disagree)
9 months ago

Never really was since it’s not a good browser. Firefox is snappier
What year is it where you are? In 2025 Firefox and all Gecko based browsers are the slowest and least compatible by far, it's well on its way to irrelevance at this point, and believe me that's not something I am happy to report. The Chromium monopoly is reminiscent of IE in the late 90s / early 00s, WebKit is the only real competitor and that's only because Apple doesn't allow other browser backends on iOS. Normally I'd be against that kind of thing, but since it's the only reason Chromium isn't completely dominant, I'm not sure.

Let's also remember Chromium is itself a fork of WebKit, if you really want to think of how incestuous the current browser landscape is.
Score: 2 Votes (Like | Disagree)
9 months ago

Is safari now snappier?
Never really was since it’s not a good browser. Firefox is snappier
Score: 2 Votes (Like | Disagree)
9 months ago
did this new version bring back compact tabs in macos tahoe? if not, yawn.
Score: 1 Votes (Like | Disagree)
SmOgER Avatar
9 months ago

What do you do guys with your browsers? Browsing competitions? To me, speed is the least important factor in deciding which browser to use. Nowadays they're all pretty fast.
Scrolling being smooth with low input latency changes the whole experience, makes it more efficient and more pleasant to use. Loading speed obviously matters as well and that depends not only on your internet speed.
That being said, in my experience Safari literally is the fastest/smoothest browser when comparing apples to apples (same ad blocking settings etc).

Can't comment about this specific TP version though. I've tried it a couple of releases back and found it to work worse than the current stable version.
Score: 1 Votes (Like | Disagree)

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors