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WWDC 2025 Preview: Apple’s ‘Sleek Peek’ Teases VisionOS-Style Overhaul and Reported Calendar-Year OS Numbering

Apple’s ‘Sleek Peek’ teaser hints at a Solarium redesign of its operating systems to unify the interface across devices, with reports suggesting a shift to year-based version numbers as it readies AI and gaming updates.

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What's in store for the next version of watchOS? A big name change might be just the start.
Tim Cook

Overview

  • WWDC 2025 kicks off with a keynote on June 9 at 10 a.m. PT and will be live-streamed on Apple’s website, YouTube channel and the Apple TV app.
  • An internal project codenamed Solarium aims to deliver a visionOS-inspired redesign across iOS, iPadOS, macOS, watchOS, tvOS and visionOS featuring translucent layers, rounded app icons and glass-like effects.
  • Multiple reports suggest Apple will rename its operating systems to match the calendar year—potentially adopting titles like iOS 26, iPadOS 26 and tvOS 26—though the company has not officially confirmed the change.
  • Bloomberg’s Mark Gurman has reported that macOS 26 will be called Tahoe, continuing Apple’s tradition of naming Mac releases after California landmarks.
  • Apple is expected to introduce AI-powered enhancements, including a revamped Siri and intelligent battery management, alongside a new preinstalled gaming app that replaces Game Center with discovery, leaderboards and player communication.