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macOS 15

Watch your background: automatic Time Machine backups

How DAS gathers its budgets and loads lists of activities. When rescoring permits, it then dispatches the process to initiate backup. Re-scheduling has changed in Sequoia, as shown here.

February 14, 2025 Macs, Technology

Do M4 chips have a new security processor?

Is there a Secure Exclave Processor in M4 chips, a sister to the Secure Enclaves in Macs with T1, T2 or Apple silicon chips? What are they, and what do they do?

February 13, 2025 Macs, Technology

What is System Data in Storage Settings?

T T Read More

The bar chart in Storage Settings shows most of your startup volume is full of System Data. What does it mean, and what use is it? Is its measure of used and free space accurate?

February 11, 2025 Macs, Technology

Apple has released macOS Sequoia 15.3.1, and 14.7.4, 13.7.4

Apple has just released a security update to macOS Sequoia to bring it to version 15.3.1, and security […]

February 10, 2025 Macs, Technology, Updates

macOS Sequoia 15.3 has improved Thunderbolt 5 performance

Sequoia 15.3 results in significant improvements in read-write speeds of SSDs connection through Thunderbolt 5 docks and hubs. Here are the details and implications for choosing SSDs.

February 4, 2025 Macs, Technology

Last Week on My Mac: What happened with XProtect?

If it’s running Sequoia, a Mac most likely installed update to Sequoia silently. However, it could still download the Software Update version, as explained here.

February 2, 2025 Macs, Technology

What has changed in macOS Sequoia 15.3?

The macOS 15.3 update introduces Genmoji creation in Messages and other apps on Apple silicon Macs, and improves […]

January 27, 2025 Macs, Technology, Updates

Apple has just released macOS Sequoia 15.3, and security updates 14.7.3 & 13.7.3

Apple has just released the update to bring macOS Sequoia to version 15.3, together with security updates 14.7.3 […]

January 27, 2025 Macs, Technology, Updates

Create an external bootable disk for Apple silicon and Intel Macs

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Two important catches that can cause a macOS installation to fail in Apple silicon: using the DFU port, and not setting up ownership correctly. Both are explained here.

January 15, 2025 Macs, Technology

ICYMI: A selection of the best Mac articles from 2024

Sequoia boot volume layout, M4 CPU core management, SIP and csrutil, backup storage, Graphing Calculator and more.

December 31, 2024 Macs, Technology

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