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One week before WWDC, Apple is building anticipation for the keynote with a new slogan – and those who listen closely will already recognize what is likely the most important topic of the day. “All systems glow” is more than just a catchy phrase: The teaser is likely a direct reference to the completely redesigned Siri interface in iOS 27.
Apple opens its WWDC developers conference on June 8th, and as usual, the hype begins well in advance. The company officially announced the event with the slogan "All systems glow"—a play on words that only becomes clear upon closer inspection. Among the Expected topics of this year's WWDC Above all, it features a fundamentally redesigned Siri – and the wording of the teaser points in exactly this direction.
“All systems glow” as a double entendre
The slogan is a variation of the phrase "all systems go," which means "everything is ready to go." The substitution of "go" for "glow"—that is, "to shine"—is hardly accidental: it likely alludes to Siri's new appearance. According to recently leaked images, Siri will receive a dark color scheme with bright elements in iOS 27.. Both a standalone Siri app and a new „Search or Ask” function, which can be accessed via Dynamic Island, are said to be affected.
All systems glow for a great #WWDC26 next week!
— Greg Joswiak (@gregjoz) June 1, 2026
Tune in on June 8 at 10 am PT. pic.twitter.com/g6A5v5vWI4
The earlier teaser also pointed in this direction
This isn't the first hint of its kind. Apple's previous WWDC slogan was "Coming bright up"—and it, along with the accompanying graphics, already alluded to the new design. Both teasers thus fit into the picture that Apple's fundamental reboot of the assistant in iOS 27 The plan is for Siri to become more visible, more independent, and more focused on artificial intelligence.
“Glow all out”: Free wallpaper and a playlist
Alongside the slogan, Apple has released further materials related to WWDC – and the “Glow” motif is consistently present throughout. Marketing chief Greg Joswiak kicked off the keynote with a decidedly upbeat message, accompanied by a new promotional video on YouTube, whose playful music and animated Apple glow set the tone for the coming week. An official wallpaper with the fitting title “Glow all out” is also available for free. Download ready – optionally for iPhone, iPad and Mac – supplemented by an official Apple Music playlist The video is called „WWDC26 Hello.” All content can be found on the official WWDC 2026 website. The fact that even the background image incorporates the „Glow” concept underscores how consistently Apple is using this theme – and again references Siri’s luminous new design.
WWDC 2026: What Apple will show on June 8
WWDC 2026 kicks off on Monday, June 8, at 7:00 PM CEST (10:00 AM Pacific Time) with the traditional keynote address. On this day, Apple will unveil iOS 27, iPadOS 27, macOS 27, watchOS 27, tvOS 27, and visionOS 27; the conference then runs until Friday, June 12, featuring hundreds of developer sessions. The keynote will be streamed live on Apple.com, the Apple TV app, and YouTube. Apfelpatient will provide comprehensive coverage of the keynote and the days that follow, covering all the announcements as usual. Throughout the summer, detailed articles on each new feature, in-depth analyses, and helpful tips on iOS 27, iPadOS 27, macOS 27, and the other operating systems will be published. (Image: Apfelpatient)
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