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upgrade

How to install security updates without upgrading to Tahoe

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Want to stay running Sequoia or earlier? Want to install security updates such as XProtect data as well? Here’s how to do that without risking being upgraded unintentionally.

November 10, 2025 Macs, Technology

Why did that macOS upgrade take so much space?

Why upgrading to Tahoe shouldn’t consume the last free space on your Mac’s SSD, and once it has settled should use little more than currently. How to clear out old snapshots and reduce System Data.

October 2, 2025 Macs, Technology

When will macOS be updated in 2025-26?

When can you expect to see the next updates to macOS Tahoe, and security updates for Sequoia and Sonoma? Here’s a tentative calendar, and how to spot them in advance.

September 24, 2025 Macs, Technology

macOS 26.0 Tahoe build 25A354 is incompatible with Mac Studio M3 Ultra

If you have a Mac Studio M3 Ultra and want to upgrade it to run macOS 26.0 Tahoe, […]

September 17, 2025 Macs, Technology

Apple has released macOS 26 Tahoe, and Sequoia 15.7, Sonoma 14.8

Apple has just released macOS 26.0 Tahoe (build 25A354), together with security updates to Sequoia taking it to […]

September 15, 2025 Macs, Technology, Updates

Prepare to upgrade macOS

Are you intending to upgrade to Tahoe on Monday? Or to Sequoia or Sonoma? Are you ready to cope with what could go wrong? Here are some tips to help you prepare.

September 11, 2025 Macs, Technology

Last Week on My Mac: Death, taxes and macOS updates

Users should be given a third option to defer updating further, as well as doing it now or later tonight. Does the DAS scheduling and dispatch system rely on security through obscurity too?

March 2, 2025 Macs, Technology

Last Week on My Mac: How Apple silicon came so quickly

It’s September 2016. Apple has just released the iPhone 7, with its first big.LITTLE CPU cores, then 4 days later macOS 10.12 Sierra. How does it transition from there to release the M1 in four years?

January 5, 2025 Macs, Technology

macOS Sequoia 15.1 next week

Sequoia 15.1 is imminent, and comes with Writing Tools. Most other AI features wait for 15.2, now in beta, and expected in early December. Don’t underestimate Writing Tools, though.

October 25, 2024 Macs, Technology

How to keep up to date with SilentKnight without upgrading by mistake

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It’s easy to ensure that SilentKnight won’t inadvertently install an upgrade to Sequoia, but still updates the security data files you want. Here’s how.

October 11, 2024 Macs, Technology

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