Apple to Use Year-Based Versioning for iOS and macOS 26

Apple is poised to overhaul its operating system release strategy at next month’s WWDC by transitioning to year-based version numbers across iOS, iPadOS, macOS, tvOS, watchOS, and visionOS. Industry reports from Bloomberg’s Mark Gurman indicate that rather than continuing with iOS 19, macOS 16, and watchOS 12, the company will brand its next major releases as iOS 26, macOS 26, watchOS 26, and so on.
Background on Versioning Changes
The last time Apple revisited its OS numbering was in 2020, moving from macOS X to macOS 11. By aligning all platforms to the “26” moniker, Apple simplifies its ecosystem—currently a maze of mismatched numbers. This shift uses the year after release (e.g., iOS 26 for late 2025), ensuring the major version corresponds to the following calendar year for most of its support window.
Key Changes in iOS/macOS/watchOS 26
- Unified UI Framework: VisionOS-inspired elements such as 3D widget layers, advanced translucency, and system-wide Material You theming delivered via SwiftUI 4.
- Enhanced Multitasking: An updated “Mac-like” window manager on iPad leveraging the new
UIScene
API for freeform layouts, improved drag-and-drop, and split-view enhancements. - Kernel and Security: Hardened macOS microkernel with expanded sandboxing rules, integration of a real-time intrusion detection module, and new Secure Enclave firmware updates.
- AI-Powered Features: On-device machine learning enhancements for Siri and system-wide transcription, tapping into Apple’s new Core ML 4 pipelines optimized with 16-bit float operations on A17 Pro and Apple M3 chips.
Impact on Developers and Enterprises
Shifting to a year-based scheme requires updates to CI/CD pipelines, automated tests, and App Store metadata. Developers will need to adapt to new SDKs—Xcode 18 introduces updated simulators for iOS 26 and Swift 6 compatibility checks. Enterprise IT teams should plan for extended testing cycles during the three-month overlap where both iOS 25 and iOS 26 betas run concurrently.
Comparative Analysis with Other Platforms
While Apple abandons numeric versioning, Microsoft has used years (e.g., Windows Server 2022) for over two decades, and many Linux distributions follow a YY.MM format. This naming reduces user confusion over “point” releases and clarifies support timelines, but may obscure incremental feature jumps between updates.
Expert Opinions and Industry Reactions
“Year-based versioning streamlines marketing and helps users understand lifecycle support,” says Dr. Elena Martinez, CTO of DevOps consultancy CloudThread. “However, developers must stay vigilant about deprecations baked into these major releases.”
Looking Ahead to WWDC 2025
At WWDC on June 10, Apple is expected to preview beta builds of all six operating systems under the new “26” banner. Attendees will get hands-on with revamped SwiftUI toolkits, updated Human Interface Guidelines, and in-depth sessions on securing the new kernel-level mitigations.