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macOS 26

Dual-boot an Apple silicon Mac in Sequoia or Tahoe

If you want to dual-boot between Sequoia and Tahoe, for example, there are four main options, including external bootable disks and VMs. These tips help you choose which is most suitable..

April 14, 2026 Macs, Technology

Apple has just released an update to macOS Tahoe, to version 26.4.1

Apple has just released an update to macOS Tahoe, bringing it to version 26.4.1. Apple’s Enterprise release notes […]

April 9, 2026 Macs, Technology, Updates

Planning for macOS this summer

Looking ahead at likely dates of forthcoming updates to macOS over the next 6 months, when Sonoma loses security support, and the last new versions for Intel Macs. Now is the time to plan.

April 1, 2026 Macs, Technology

Why the macOS 26.4 update appears to freeze

For nearly 12 minutes, the progress bar was stuck at 98.6% complete and “about 5 minutes remaining”, and on many older Macs those lasted even longer. Did the update get stuck?

March 30, 2026 Macs, Technology

Last Week on My Mac: Update progress

Why isn’t the progress bar for macOS updates better? Why can’t it estimate the whole time remaining to complete an update?

March 29, 2026 Macs, Technology

Does disk storage speed limit macOS virtual machines?

In Ventura, VM disk performance was poor, with write speeds of 0.7 GB/s. How fast is it now in macOS 26.4, and how does using FileVault affect it? Plus a note on problems with BSIs in VMs.

March 27, 2026 Macs, Technology

What has changed in macOS Tahoe 26.4?

The update to bring macOS Tahoe up to version 26.4 is hefty at around 7.15 GB (more than […]

March 24, 2026 Macs, Technology, Updates

Apple has released macOS Tahoe 26.4, and security updates 15.7.5 and 14.8.5

Apple has released the update to bring macOS Tahoe to version 26.4, and security updates for Sequoia and […]

March 24, 2026 Macs, Technology, Updates

Disk image performance: the cost of encryption rises

The new ASIF disk image type is now 18 months old. How well does it perform? Is it as good as claimed? It all depends on whether you want to use encryption.

March 23, 2026 Macs, Technology

Last Week on My Mac: Brilliant engineering in a flawed interface

After an unfortunate incident three years ago, RSRs were put on pause. Now they’ve been rebadged as BSIs, what is wrong with their current implementation? The list is long.

March 22, 2026 Macs, Technology

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