Home / Mac / iMac (24-inch, M3, 2023, Four Ports) / macOS 15.5 RC (24F74)
Device

macOS 15.5 RC

Build 24F74
Currently Signed
iMac (24-inch, M3, 2023, Four Ports) Mac15,5
Released
May 6, 2025
File Size
16.88 GB
Filename
UniversalMac_15.5_24F74_Restore.ipsw
Download IPSW

Important Notice About Signing Status

Signing status was last updated less than a minute ago. Apple can stop signing at any time without notice.

Verify current status at IPSW.dev

Beta Firmware Notice

For official public releases, visit IPSWDL.com

Firmware Details

Device iMac (24-inch, M3, 2023, Four Ports) (Mac15,5)
OS TypemacOS
Version15.5 RC
Build ID24F74
Release DateMay 6, 2025
Signing Status Signed
Status last checked March 10, 2026. Verify at IPSW.dev
Filename UniversalMac_15.5_24F74_Restore.ipsw
File Size16.88 GB
Download URL https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-44534/CE6C1054-99A3-4F67-A823-3EE9E6510CDE/UniversalMac_15.5_24F74_Restore.ipsw

Installation Instructions

How to install this firmware

  1. Download the IPSW file.
  2. Connect your device to your computer.
  3. Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina and later).
  4. Hold Option (⌥) on Mac or Shift on Windows and click Check for Update or Restore.
  5. Select the downloaded IPSW file and follow on-screen instructions.

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