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#1791: March 4 Apple event, OS 26.3 tweaks Liquid Glass and fixes vulnerabilities, HiWater hydration app, old Home architecture ended

Apple has announced an unusual multi-city “Apple Experience” event for 4 March 2026 in New York, London, and Shanghai—speculation centers on a colorful low-cost MacBook, the iPhone 17e, and MacBook Pros with the M5 Pro and M5 Max. In other news, Apple’s grace period for the old Home architecture officially ended on 10 February 2026, so Adam Engst explains what you need to know if you haven’t yet upgraded, including the requirement for an Apple TV or HomePod as a home hub instead of an iPad. We also cover the OS 26.3 updates, which patch dozens of security vulnerabilities, including a zero-day exploit, and macOS 26.3 Tahoe also brings a few welcome refinements to Liquid Glass, particularly with Reduce Transparency enabled, but leaves some visual quirks unfixed. In AppBITS, Adam reviews HiWater, an elegantly designed hydration-tracking app that has helped him work toward a cardiologist-recommended 100-ounce daily fluid intake. Notable Mac app releases this week include Bookends 15.3, Fantastical 4.1.8 and Cardhop 2.4.5, Microsoft Office for Mac 16.106, SoundSource 6.0.4, and Zoom Workplace 6.7.6.

Adam Engst 30 comments

AppBITS: Drink More with HiWater

After a fainting spell left Adam Engst with a doctor’s order to drink 100 ounces daily, he turned to HiWater. This elegant iPhone and Apple Watch app tracks hydration and nags you to drink—sometimes too well.

Watchlist

Bookends 15.3 Agen Schmitz 1 comment

Bookends 15.3

Updates the reference management tool to use Liquid Glass when running on macOS 26 Tahoe. ($74.99 new, free update, 127 MB, macOS 11+)

SoundSource 6.0.4 Agen Schmitz No comments

SoundSource 6.0.4

Updates the audio control utility to be more responsive during launch and changes to the system output device. ($49 new, free update, 52.3 MB, macOS 15+)