This year, macOS hits lucky number 10.14. Apple's been working on it since last fall, when marketing weighed in on what it thought the next update needed, engineers pitched new ideas, and Apple's senior vice president of software engineering, Craig Federighi sifted through the big pile on his desk. Since Apple doesn't tease future releases, until Federighi takes the stage on June 4 at WWDC 2018, it's impossible for anyone on the outside to know everything that made the cut but that doesn't stop the rumors from flying.

Here's what's made the news so far!

June 2, 2018: macOS 'Mojave' 10.14 dark mode, Xcode 10, App Store redesign, and News app

Developer Steve Troughton-Smith has shared screenshots of what he ways are the new Xcode 10, macOS 10.14 dark mode, redesigned Mac App Store with video previews, and the Apple News app for macOS.

Following along, developer Gui Rambo teased that the name will be macOS Mojave. (Though, there's still time for Apple to change all the slides to macOS Weed just to mess with the leaks.)

We'll see the whole thing on Monday when Apple kicks off the WWDC 2018 keynote at 10am PDT / 1pm EDT.

May 28, 2018: Mac App Store once again rumored to be getting a macOS 10.14 makeover

I thought this was pretty much common knowledge since WWDC 2017, following the launch of the iOS App Store redesign last year, but it's widely, deeply expected that the Mac App Store redesign, like the iBook Store redesign, will follow this year.

Stlll, Gruber dropped this on Daring Fireball and it's getting attention, so it's worth the reminder:

One of the things I'm most looking forward to next month at WWDC is seeing this sort of treatment on the Mac App Store, too.

Something unexpected could always go wrong, but it'd be news if we don't get this stuff in June.

May 23, 2018: System-wide Dark Mode rumored — guessed? wished? — for macOS

Gui Rambo is a reverse-engineering whiz, so when he throws something up on Twitter, it's worth paying attention to. In this case, it's hard to tell if Gui is sharing a rumor, and educated guess, or just wishing like the rest of us. But, given that Apple has started down the Dark Mode path on macOS, forever should it control its destiny... or, rather, just finish implementing it already.

April 30, 2018: 'Marzipan' isn't 'Marzipan', but it's coming 2019... as part of a new UI

John Gruber, writing for Daring Fireball:

There is indeed an active cross-platform UI project at Apple for iOS and MacOS. It may have been codenamed "Marzipan" at one point, but if so only in its earliest days.

I just assumed Marzipan was the name for one of the candidates for this project, but that Apple was going ahead with a different candidate. Apple often weighs different approaches, like using AppKit or WebKit for iOS before coming up with UIKit, or other languages or storage technologies before going all-in on Swift or APFS.

I don't have extensive details, but basically it sounds like a declarative control API.

It could be part of a bigger project that, to borrow John's HTML analogy, brings a little CSS to the table?

It's a 2019 thing, for MacOS 10.15 and iOS 13.1 I would set your expectations accordingly for this year's WWDC.

That's also when the new Home screen and interface design are currently scheduled to appear, which John doesn't think is a coincidence. And is probably not a coincidence.

Mark Gurman, on Twitter, claims this is part of separate projects being run by the Swift team.

February 12, 2018: Apple reportedly pulling a "Snow Leopard" on macOS 10.14

Snow Leopard, famously, was the version of OS X that focused less on new features and more on refining the existing features and core technologies. macOS High Sierra had much of the same focus as well. Still, given how many major achitectural changes Apple has rolled out (and in some cases, rolled back) over the last few years, it sounds like more refinements, not less, are in our future.

Mark Gurman writing for Bloomberg:

These features were delayed after Apple Inc. concluded it needed its own major upgrade in the way the company develops and introduces new products. Instead of keeping engineers on a relentless annual schedule and cramming features into a single update, Apple will start focusing on the next two years of updates for its iPhone and iPad operating system, according to people familiar with the change. The company will continue to update its software annually, but internally engineers will have more discretion to push back features that aren't as polished to the following year.

The same is, apparently, true for macOS where, for example, APFS still needs to roll out for Fusion drives, the new Windowing Server still needs to be fixed, etc.

December 20, 2017: Apple working on easier iOS to Mac app deployment, potentially for macOS 10.14

Right now, developers who make both iOS and macOS versions of their apps can't share much between them. And that makes developing and maintaining the Mac version more difficult than, say, the iPad version. Apple could be about to make that easier, though.

Mark Gurman, writing for Bloomberg:

Starting as early as next year, software developers will be able to design a single application that works with a touchscreen or mouse and trackpad depending on whether it's running on the iPhone and iPad operating system or on Mac hardware, according to people familiar with the matter.

Apple currently plans to begin rolling out the change as part of next fall's major iOS and macOS updates, said the people, who requested anonymity to discuss an internal matter. The secret project, codenamed "Marzipan," is one of the tentpole additions for next year's Apple software road map. Theoretically, the plan could be announced as early as the summer at the company's annual developers conference if the late 2018 release plan remains on track. Apple's plans are still fluid, the people said, so the implementation could change or the project could still be canceled.

I spoke to developers who've worked on previous, third party, shared framework attempts in the past. Here's what they thought:

When will we see macOS 10.14?

If Apple keeps to its recent schedule, it will show off macOS 10.14 for the first time during the keynote for it's annual World Wide Developers Conference (WWDC) on June 4, 2018. Tim Cook will introduce macOS 10.14, while Craig Federighi, Senior Vice President of Software Engineering, will go through its different tentpole features.

It's likely that the first developer beta of macOS 10.14 will be made available the same day as the presentation. As with the last few iterations of macOS, a public beta should follow later in the summer.

What new features will we see in macOS 10.14?

macOS 10.14 is rumored to be low on new features and high on stability and reliability fixes, much like macOS High Sierra and OS X Snow Leopard were. Apple has made many, huge changes under the hood over the last couple of years, including everything from a new file system to a new windowing server, and it has to keep paying down that technical debt.

What new features have been rumored include:

  • New framework to make it easier for developers to bring iOS apps to the Mac.
  • System-wide Dark Mode.
  • Home app
  • APFS for Fusion Drives

When will macOS 10.14 launch for the public?

For the last few years, new versions of macOS have gone into general release in the fall. While iOS has been tied to the release of new iPhones, always arriving a couple days before the new models launch, macOS has been more fluid. (Though, increasingly, Apple seems to be trying to coordinate the releases due to the amount of shared features between them.)

  • 2017: September 25
  • 2016: September 20
  • 2015: Spetember 30
  • 2014: October 16
  • 2013: October 22

What will macOS 10.14 be called?

Update: macOS Mojave is currently being teased as the official name.

Is this the year Craig Federighi finally gets to use macOS Weed? Probably not. It's the crack marketing team, as he often points out, that gets to choose the names.

More likely is one of the following, part of a list of Apple trademarks unearthed in 2014:

  • Big Sur
  • California
  • El Diablo
  • Redwood
  • Mammoth
  • Miramar
  • Mojave
  • Monterey
  • Pacific
  • Sequoia
  • Sonoma
  • Tiburon
  • Ventura

What do you want to see in macOS 10.14?

I'm still waiting for better Split View handling, the Home app, the News app, and proper drag-and-drop support for the Photos app, amoung other things.

What about you?

Apple Rumors: Here's what we know

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