Every year heading into WWDC, one thought on many Mac fans' minds is what Apple will choose as the name for the next version of macOS. The tradition dates all the way back to the beginning of Mac OS X with big cat names like Leopard, and Apple eventually shifted to California-themed names with the unveiling of OS X Mavericks.


Apple has yet to announce the name for macOS 27, but macOS Emerald and macOS Big Bear have emerged as two speculative possibilities.

While it will have a new Siri app and other Apple Intelligence enhancements, macOS 27 will reportedly be focused on bug fixes and stability improvements. In other words, it will be a refined version of macOS Tahoe. For this reason, macOS Emerald could be a fitting name for macOS 27, given that Emerald Bay is part of Lake Tahoe. This would be similar to how macOS High Sierra was a refined version of macOS Sierra.

macOS Big Bear is another speculated name, as MacRumors contributor Aaron Perris discovered that the filename for Apple's WWDC 2026 hashtag graphic on X mentions "Project Big Bear." macOS Big Bear would refer to Big Bear Lake in California. However, the filename could obviously end up being unrelated to macOS 27 naming.

Back in 2014, we discovered more than 20 California-themed trademark applications filed by various limited-liability companies, which were all but certain to be shell companies created by Apple to hide its identity. Over time, some of the trademarks like Yosemite, Sierra, Mojave, Monterey, Mojave, Ventura, Sonoma, and Sequoia were indeed used as macOS names, while trademark applications for other names were abandoned.

Apple has still proceeded to use some of the names with abandoned trademark filings as macOS names, such as Big Sur in 2020. So, there is still a possibility that macOS 27 will use one of the names that Apple had filed to protect many years ago.

Here is a list of the remaining words that Apple had filed:

• California


• Condor


• Diablo


• Farallon


• Grizzly


• Mammoth


• Miramar


• Pacific


• Redtail


• Redwood


• Rincon


• Shasta


• Skyline


• Tiburon

Of course, there is no guarantee that Apple will ever use any of these names. It is simply fun to think about the possibilities each year.

Apple will unveil macOS 27 during its WWDC 2026 keynote on Monday, June 8.
This article, "macOS Emerald to macOS Big Bear: What Will Apple Name macOS 27?" first appeared on MacRumors.com

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Apple will unveil its latest software platforms during its WWDC 2026 keynote on Monday, June 8, and one of them will be macOS 27 for the Mac.


The first developer beta of macOS 27 will likely be available immediately following the keynote, and a public beta typically follows in July. Following beta testing, the software update should be released to all users in September.

macOS 26 is known as macOS Tahoe, but the name of macOS 27 has yet to leak.

Below, we recap what to expect from macOS 27.

Siri Upgrades

macOS 27 will reportedly include a dedicated Siri app with conversation history. This would make Siri more like OpenAI's ChatGPT and Google's Gemini.

macOS 27 should also include the personalized Siri features that Apple previewed all the way back at WWDC 2024. For example, Apple showed a user asking Siri about their mother's flight and lunch reservation based on info retrieved from the Mail and Messages apps. This functionality was previewed on an iPhone, but it will extend to the iPad and Mac.

"We look forward to bringing a more personalized Siri to users coming this year," said Apple's CEO Tim Cook, on an earnings call this week.

More Apple Intelligence Features

Earlier this year, Apple and Google announced that Google Gemini will help power future Apple Intelligence features, and that will extend beyond the more personalized version of Siri. However, exactly which features arrive remains to be seen.

Touch Interface

Bloomberg's Mark Gurman reported that Apple is preparing a touch-optimized version of macOS for the rumored MacBook Pro or "MacBook Ultra" with a touchscreen.

For example, if a user touches a button or control on the screen, the report said a relevant set of commands will instantly appear in a menu surrounding their finger. And if a user taps on an item in the menu bar at the top of the screen, the report said the controls will enlarge so they are easier to select with a finger.

Gurman expects a MacBook Pro or MacBook Ultra with a touchscreen to be released by early 2027, so these touch optimizations will presumably arrive in macOS 27. However, the changes might be hidden until the laptop launches.

Improved Stability

macOS 27 will reportedly be similar to 2009's Mac OS X Snow Leopard, in the sense that Apple is apparently very focused on improving "quality and underlying performance." Apple is expected to implement many bug fixes and stability improvements, and there may also be some much-needed Liquid Glass design enhancements.

No Intel Macs

Last year, Apple announced that macOS Tahoe would be the final major macOS release for Intel-based Macs, meaning that macOS 27 will be compatible with Apple silicon Macs with the M1 chip and newer only. However, Apple will likely continue to release security fixes for some Intel-based Macs for at least a few more years.

No AirPort Time Capsule Support

Starting with macOS 27, Macs will not support the AirPort Time Capsule or any other storage drives that use the Apple Filing Protocol (AFP), according to a warning shown by Apple on macOS Tahoe. Time Capsule backups will require a storage drive that supports more current file-sharing protocols like SMBv2 and SMBv3.
This article, "Apple to Unveil macOS 27 Next Month With These New Features" first appeared on MacRumors.com

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Apple has announced their annual Worldwide Developer Conference (WWDC) for 2026 will begin on June 8, and extend through the 12th of that week. The keynote is set for June 8, which will give developers and users a look at what’s coming next from the software side of Apple. Historically, WWDC is where Apple introduces ... Read More

Apple's new Liquid Glass interface introduced across iOS 26, macOS Tahoe, and its other latest software platforms is apparently here to stay.


In his Power On newsletter today, Bloomberg's Mark Gurman said the latest internal versions of iOS 27 and macOS 27 do not have major Liquid Glass design changes. He also mentioned how Apple's new software design chief, Steve Lemay, was "a driving force" behind Liquid Glass and was "deeply involved in its development."

Lemay joined Apple in 1999. He succeeded Alan Dye, who left Apple for Meta at the end of last year. Under his leadership, it is likely that Apple will focus on gradually improving Liquid Glass. This would be similar to Apple's approach with iOS 7, which did away with skeuomorphism in favor of a flat design and was then refined over the years.

Apple already provided iPhone users with a few Liquid Glass customization options through software updates. iOS 26.1 added a "Tinted" option that increases the opacity of Liquid Glass elements across the system, and iOS 26.2 introduced a slider that allows you to adjust the opacity of Liquid Glass for the Lock Screen's clock.

Apple was initially working on a system-wide Liquid Glass slider for iOS 26, but it ran into engineering challenges when trying to extend it across the entire system, according to Gurman. However, he said Apple could go back to the drawing board and manage to get the system-wide slider working in an iOS 27 version.


This article, "No Major Changes to Liquid Glass Expected Across iOS 27 and macOS 27" first appeared on MacRumors.com

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macOS 27 is still months away, but there are already a handful of rumors about the upcoming software update, as outlined below.


We expect the first beta of macOS 27 to be seeded to developers during WWDC 2026 in June, and a public beta to follow in July. Following beta testing, the update should be released to all users with a compatible Mac in September.

macOS 26 is known as macOS Tahoe, but the name of macOS 27 has yet to leak.

Siri Upgrades

macOS 27 will reportedly include a full-out Siri chatbot that you can have back-and-forth conversations with. This would make Siri more like OpenAI's ChatGPT and Google's Gemini. Due to delays, macOS 27 might also include at least some of the personalized Siri features that Apple previewed all the way back at WWDC 2024.

For example, Apple showed a user asking Siri about their mother's flight and lunch reservation based on info retrieved from the Mail and Messages apps. This functionality was previewed on an iPhone, but it will extend to the iPad and Mac.

More Apple Intelligence Features

Last month, Apple and Google announced that Google Gemini will help power future Apple Intelligence features, and that will extend beyond the more personalized version of Siri. However, exactly which features arrive remains to be seen.

Touch Interface

Bloomberg's Mark Gurman this week reported that Apple is preparing a touch-optimized version of macOS for the rumored MacBook Pro with a touch screen.

For example, if a user touches a button or control on the screen, the report said a relevant set of commands will instantly appear in a menu surrounding their finger. And if a user taps on an item in the menu bar at the top of the screen, the report said the controls will enlarge so they are easier to select with a finger.

Gurman expects the MacBook Pro with a touch screen to be released in late 2026, so these touch optimizations will presumably arrive in macOS 27. However, the changes might be hidden until the touch-screen MacBook Pro launches.

Improved Stability

macOS 27 will reportedly be similar to 2009's Mac OS X Snow Leopard, in the sense that Apple is apparently very focused on improving "quality and underlying performance." Apple is expected to implement many bug fixes and stability improvements, and there may also be some much-needed Liquid Glass design enhancements.

No Intel Macs

Last year, Apple announced that macOS Tahoe would be the final major macOS release for Intel-based Macs, meaning that macOS 27 will be compatible with Apple silicon Macs with the M1 chip and newer only. However, Apple will likely continue to release security fixes for some Intel-based Macs for at least a few more years.
This article, "macOS 27: All the Rumors So Far" first appeared on MacRumors.com

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