Ahead of the WWDC 2025, Apple may name this year's Mac operating system as 'macOS 26 Tahoe' after California's Tahoe Lake, a report stated. Tahoe's clear waters align with the product's glass-like translucent UI design. Apple has traditionally named its macOS after "iconic" California landmarks, a practice that has led to names like macOS Ventura, Monterey, Big Sur and Catalina.