safarilogoApple today seeded developers with new versions of Safari for OS X Mavericks (Safari 7.1) and OS X Mountain Lion (Safari 6.2) to parallel continued work on OS X Yosemite. In particular, Apple is asking developers to test general website and extension compatibility for several reasons.

Please test general website compatibility.
- Subpixel rendering is now on by default for all web content. Web sites or in-app web views with extremely tight design constraints may render differently.
- CSS object model getters will return fractional double values based on subpixel layout and rendering metrics instead of rounded integral values.

Please test extension compatibility.

Apple also documents several new WebKit features included in the new versions of Safari including support for WebGL, which allows users to view 3D content without plug-ins. WebGL has been present in Safari for OS X for several years, but is disabled by default. It's clear, however, that Apple is looking to take WebGL mainstream, pushing development on OS X Safari and bringing it to Safari for iOS later this year with iOS 8.

Update: Many non-developers are reporting that the Safari 7.1 beta is even showing up for them in the Mac App Store update section.

Top Rated Comments

tywebb13 Avatar
149 months ago
Apple accidently indexed the file Safari7.1MavericksSeed.pkg in the file

index-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz

giving ALL the public with mavericks access to it.

They should have only put it onto the developer and public beta testers index files.

It should not go onto

index-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz

until safari 7.1 is actually officially publicly released.

This would explain why you are seeing it in your mac app store even if you are not a developer or public beta tester.
Score: 3 Votes (Like | Disagree)
tywebb13 Avatar
149 months ago
I put a message about it in apple's developer forums and apple acted pretty quickly on it and have now removed the file Safari7.1MavericksSeed.pkg from index-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz

Hence it is no longer publicly available to everyone. (But is still available to developers via the mac dev center).
Score: 2 Votes (Like | Disagree)
PocketSand11 Avatar
149 months ago
These updates always make Safari sna– faster for me, but I really wish they'd bring back the Activity Window that listed all the page resources to get their URLs. It was great for downloading videos and such (for personal use!). For some reason, the web inspector doesn't have any similar functionality, and they removed the Activity Window after Safari 5 I think.
Score: 2 Votes (Like | Disagree)
Emulsion Avatar
149 months ago
'Apple looking to take WebGL mainstream.'

Wrong. It hasn't gone mainstream because Apple hasn't implemented the web standard yet. So developers haven't implemented it because of Apple holding out.

There's a difference.
Score: 2 Votes (Like | Disagree)
xeni Avatar
149 months ago
I'm not a dev either but if you signed up to get Xcode, then you will get these updates i think.
Not sure if signing up for the Yosemite beta did the same thing.

EDIT: ...or not? http://www.reddit.com/r/apple/comments/2aec4h/safari_71_developer_preview_in_app_store/
Looks like Apple may have goofed up.
Score: 2 Votes (Like | Disagree)
iBug2 Avatar
149 months ago
Apple does not seem to be serious about their browser any more. It was very innovative when it was launched but now I think FireFox and Chrome are way ahead.

Ahead in terms of what? Safari is way more faster than both of those browsers and uses a lot less energy. I keep Firefox because I need its addons every now and then but I have no use for Chrome.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 26

When Will Apple Release iOS 26.2?

Monday December 1, 2025 4:37 pm PST by
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week. Past Launch Dates Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
Sad Siri Feature

Apple AI Chief John Giannandrea Retiring After Siri Delays

Monday December 1, 2025 2:16 pm PST by
Apple AI chief John Giannandrea is stepping down from his position and retiring in spring 2026, Apple announced today. Giannandrea will serve as an advisor between now and 2026, with former Microsoft AI researcher Amar Subramanya set to take over as vice president of AI. Subramanya will report to Apple engineering chief Craig Federighi, and will lead Apple Foundation Models, ML research, and ...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
Netflix Smaller 4

Netflix Kills Casting From Its Mobile App to Most Modern TVs

Monday December 1, 2025 4:36 am PST by
Netflix has quietly removed the ability to cast content from its mobile apps to most modern TVs and streaming devices, including newer Chromecast models and the Google TV Streamer. The change was first spotted by users on Reddit and confirmed in an updated Netflix support page (via Android Authority), which now states that the streaming service no longer supports casting from mobile devices...
Cyber Week Deals 2025

Best Cyber Week Apple Deals Include Big Discounts on AirPods, Apple Watch, and More

Sunday November 30, 2025 7:33 am PST by
Cyber Week is here, and you can find popular Apple products like AirPods, iPad, Apple Watch, and more at all-time low prices. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Specifically,...
Touchscreen MacBook Feature

Here Are the Four MacBooks Apple Is Expected to Launch Next Year

Monday December 1, 2025 5:00 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Below is a breakdown of what we're expecting over the next ...
studio display purple february

M5 iPad Pro Could Hint at New Studio Display Feature

Sunday November 30, 2025 10:30 am PST by
The updated specs of the M5 iPad Pro may point toward a major new feature for Apple's next-generation Studio Display expected in early 2026. Apple's latest iPad Pro debuted last month and contains one display-related change that stands out: it can now drive external monitors at up to 120Hz with Adaptive Sync. The feature should deliver lower latency, smoother motion, and fewer visual...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
iPhone Pocket Short

iPhone Pocket is Now Completely Sold Out Worldwide

Tuesday November 25, 2025 7:16 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. However, it is now completely sold out in all countries where it was released. iPhone Pocket became available to order on Apple's online store starting Friday, November 14, in the United States, France, China, Italy, Japan, Singapore, ...
iphone 17 cyber

iPhone 17 Demand Is Breaking Apple's Sales Records

Tuesday December 2, 2025 9:44 am PST by
Apple's iPhone 17 lineup is selling well enough that Apple is on track to ship more than 247.4 million total iPhones in 2025, according to a new report from IDC. Total 2025 shipments are forecast to grow 6.1 percent year over year due to iPhone 17 demand and increased sales in China, a major market for Apple. Overall worldwide smartphone shipments across Android and iOS are forecast to...