Apple has pushed out two fresh updates for older Macs: macOS Sequoia 15.7.4 and macOS Sonoma 14.8.4. Both releases target stability and security, and they arrive on the same patch day as Apple’s newer 26.3 releases for its latest platforms.
If you track build numbers, these updates land as Sequoia 15.7.4 (24G517) and Sonoma 14.8.4 (23J319).
This also closes out the recent “.3” release cycle that moved through release candidate testing first, then rolled into a public release.
How to update
You can install either update in a couple of minutes:
- Open System Settings
- Click General
- Click Software Update
- If you see macOS Sequoia 15.7.4 or macOS Sonoma 14.8.4, click Update Now
- Keep your Mac plugged in if you are on a laptop, and let it restart when prompted
After the restart, you can confirm the version by going to Apple menu > About This Mac.
Changes
Apple positions these as maintenance releases for older Macs, so you should not expect big new features. The practical headline is security.
The security notes for macOS Sequoia 15.7.4 list fixes across a wide mix of system components, including areas tied to file integrity, media handling, image processing, sandboxing, Wi-Fi, and WindowServer. In plain terms, the update patches issues that could lead to data exposure, crashes, or stronger attack paths if a device processes malicious content or runs a hostile app.
macOS Sonoma 14.8.4 follows the same pattern: it’s a security-focused patch for Macs that remain on Sonoma. Apple documents the security content separately, which is typical for these point releases.
If your Mac supports a newer macOS generation, updating beyond these older branches usually delivers the most complete set of fixes. Still, for Macs that stay on Sequoia 15 or Sonoma 14, these updates matter because they extend patch coverage.
Final note
If you install macOS Sequoia 15.7.4 or macOS Sonoma 14.8.4 today, share what you notice, including install time, any app issues, and whether performance feels different. Let us know in the comments.
I installed the update on 2/16/2026 on a Macbook M4 Max. After a couple automatic reboots my Mac rebooted one more time. The screen was now black except for a couple white pixels (looked like 3 pixels) near the bottom of the screen and slightly left of center. The keyboard backlight was on, but the screen remained black (except for the 3 white pixels) for more than two minutes. I forced power off with the power button and powered back up. Everything seems to be working after power up. All my apps appear to be working normally.