Apple Releases Safari Technology Preview 125 With Bug Fixes and Performance Improvements - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Releases Safari Technology Preview 125 With Bug Fixes and Performance Improvements

Apple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced in March 2016. Apple designed the ‌Safari Technology Preview‌ to test features that may be introduced into future release versions of Safari.

Safari Technology Preview Feature
‌Safari Technology Preview‌ release 125 includes bug fixes and performance improvements for Web Inspector, CSS, Web Animations, WebAssembly, Storage, Web API, Rendering, and WebRTC.

The current ‌Safari Technology Preview‌ release is the built on the new Safari 14 update included in macOS Big Sur with support for Safari Web Extensions imported from other browsers, tab previews, password breach notifications, web authentication with Touch ID, and more.

The new ‌Safari Technology Preview‌ update is available for both macOS Catalina and macOS Big Sur, the newest version of the Mac operating system.

The ‌Safari Technology Preview‌ update is available through the Software Update mechanism in System Preferences to anyone who has downloaded the browser. Full 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 designed for developers, it does not require a developer account to download.

Popular Stories

Safari Technology Preview Updated Feature 1

Apple Releases Safari Technology Preview 247 With MCP Server for AI Agent Integration

Wednesday July 1, 2026 2:11 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 247 adds the Safari Model Context Protocol (MCP) server meant to speed up web development and...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 17, 2026 10:39 am PDT by
It is now mid-July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are now just two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, ...
iPhone 18 Pro and Pro Max Feature

'Apple Upgrade' Program Reportedly Launching Next Week

Tuesday July 21, 2026 8:30 am PDT by
Apple and Klarna are partnering on a new "Apple Upgrade" leasing program set to launch in the U.S. on Tuesday, July 28, according to Bloomberg's Mark Gurman. The program will allow you to finance most iPhone, iPad, Mac, and Apple Watch models, with a 24-month term for iPhones and Apple Watches and a 36-month term for iPads and Macs. Customers will be able to pay off the device early during...

Top Rated Comments

countryside Avatar
67 months ago
Please make DuckDuckGo the default search engine on Safari. Show that you ACTUALLY care about user privacy.
Score: 5 Votes (Like | Disagree)
LFC2020 Avatar
67 months ago
W

Please make DuckDuckGo the default search engine on Safari. Show that you ACTUALLY care about user privacy.
will never happen, apple is getting to nuch 💰💰💰from google.
Score: 2 Votes (Like | Disagree)
srbNYC Avatar
67 months ago
It says you have to upgrade to Big Sur for me. I have Catalina on unsupported MBP.


This page of Apple's seems to have a version for Catalina

https://developer.apple.com/safari/download/
Score: 1 Votes (Like | Disagree)
blueflower Avatar
67 months ago
Safari is mad slow but I trust it more than the others to do financial transactions. So I use it to make purchases. I use firefox and opera they are blazing fast. I didn't even bother to put filthy chrome on my mac. Now that you mention edge maybe ill try it out. Truthfully, I had started to use it during my final months on windows. @funktight
Score: 1 Votes (Like | Disagree)
funktight Avatar
67 months ago
I've long ago migrated from Safari and Chrome to Edge. Safari crawls like a snail on my M1 based MBA and Chrome becomes a massive resource hog. Not quite sure what's up with Safari, but until it runs as quick as Edge is (for me) it will stay in the dock, but never bounce to life :confused:
Score: 1 Votes (Like | Disagree)
srbNYC Avatar
67 months ago
I noticed problems on 124. Print buttons on some websites didn't launch the print dialog, animated graphics didn't show up, etc. These functions on the same pages do work on the current regular Safari release, so I just reverted to that as my default. Now tempted to try the new one....
Score: 1 Votes (Like | Disagree)