macOS 26.4 tweaks arrive
macOS 26.4 adds compact Safari tabs, a native battery limit control, and signals an eventual phase‑out of Rosetta 2 — small but practical updates that affect dev and QA matrices reported. Teams testing on Intel hardware should note the Rosetta timeline for longer‑term compatibility planning.
Developer and public betas moved quickly: developer beta 1 was published on Feb. 16, 2026. (developer.apple.com) Public beta availability followed on Feb. 17, 2026, and Apple pushed developer betas 3 and 4 on Mar. 3 and Mar. 9, 2026 respectively. (macobserver.com) The new Charge Limit exposes a slider in System Settings → Battery → Charging that lets users cap charging between 80% and 100% (selectable in 5% steps on reported builds). (macrumors.com) Apple’s notes indicate it works alongside Optimized Battery Charging and can be automated. (macobserver.com) Safari’s condensed tab option is explicitly reintroduced in the 26.4 Safari beta release notes, restoring “Compact tabs” for both macOS and iPadOS builds. (developer.apple.com) Coverage says the return follows user backlash after the option’s earlier removal. (9to5mac.com) macOS 26.4 now surfaces a launch-time warning for apps running under Rosetta that those binaries will stop functioning in future releases; the popup specifically notifies users their Intel-only app support will end with later macOS versions. (macrumors.com) Apple’s platform timeline is firm in reporting: macOS Tahoe (26) is the final major release to broadly support Intel Macs, macOS 27 (expected Sept. 2026) drops full Intel support, and macOS 28 (expected 2027) will remove most Rosetta 2 functionality while retaining a limited subset for legacy gaming and select VM scenarios. (9to5mac.com) Beyond battery, tabs, and Rosetta notices, 26.4 adds app-level content updates — Freeform gains Creator Studio–exclusive tools (premium images, upscaling and OpenAI model generation) and the build includes eight new emoji in the system set. (9to5mac.com)
