IPSW · macOS
macOS 26.1 beta IPSW Download (25B5042k)
Build 25B5042k, released September 22, 2025 — restore images for 49 Macs, straight from Apple's servers.
Choose your Mac
49 devices. Each row is one file on Apple's CDN.
Mac Studio (M3 Ultra, 2025)
Unsigned
Mac15,14 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac Studio (M4 Max, 2025)
Unsigned
Mac16,9 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (13-inch, M4, 2025)
Unsigned
Mac16,12 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (15-inch, M4, 2025)
Unsigned
Mac16,13 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
iMac (24-inch, M4, 2024, Four Ports)
Unsigned
Mac16,3 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
iMac (24-inch, M4, 2024, Two Ports)
Unsigned
Mac16,2 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac mini (M4 Pro, 2024)
Unsigned
Mac16,11 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac mini (M4, 2024)
Unsigned
Mac16,10 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M4 Max, Nov 2024)
Unsigned
Mac16,6 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M4 Pro, Nov 2024)
Unsigned
Mac16,8 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M4, Nov 2024)
Unsigned
Mac16,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M4 Max, Nov 2024)
Unsigned
Mac16,5 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M4 Pro, Nov 2024)
Unsigned
Mac16,7 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (13-inch, M3, 2024)
Unsigned
Mac15,12 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (15-inch, M3, 2024)
Unsigned
Mac15,13 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, 14-core M3 Max, Nov 2023)
Unsigned
Mac15,10 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, 16-core M3 Max, Nov 2023)
Unsigned
Mac15,8 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, 14-core M3 Max, Nov 2023)
Unsigned
Mac15,11 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, 16-core M3 Max, Nov 2023)
Unsigned
Mac15,9 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
iMac (24-inch, M3, 2023, Four Ports)
Unsigned
Mac15,5 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
iMac (24-inch, M3, 2023, Two Ports)
Unsigned
Mac15,4 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M3 Pro, Nov 2023)
Unsigned
Mac15,6 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M3, Nov 2023)
Unsigned
Mac15,3 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M3 Pro, Nov 2023)
Unsigned
Mac15,7 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac Pro (2023)
Unsigned
Mac14,8 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b Mac Pro (Rack, 2023)
Unsigned
Mac14,8-Rack 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac Studio (M2 Max, 2023)
Unsigned
Mac14,13 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac Studio (M2 Ultra, 2023)
Unsigned
Mac14,14 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (15-inch, M2, 2023)
Unsigned
Mac14,15 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac mini (M2 Pro, 2023)
Unsigned
Mac14,12 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac mini (M2, 2023)
Unsigned
Mac14,3 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M2 Max, 2023)
Unsigned
Mac14,5 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M2 Pro, 2023)
Unsigned
Mac14,9 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M2 Max, 2023)
Unsigned
Mac14,6 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M2 Pro, 2023)
Unsigned
Mac14,10 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (M2, 2022)
Unsigned
Mac14,2 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (13-inch, M2, 2022)
Unsigned
Mac14,7 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac Studio (M1 Max)
Unsigned
Mac13,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac Studio (M1 Ultra)
Unsigned
Mac13,2 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M1 Max, 2021)
Unsigned
MacBookPro18,4 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (14-inch, M1 Pro, 2021)
Unsigned
MacBookPro18,3 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M1 Max, 2021)
Unsigned
MacBookPro18,2 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (16-inch, M1 Pro, 2021)
Unsigned
MacBookPro18,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Apple Virtual Machine 1
Unsigned
VirtualMac2,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
iMac (24-inch, M1, 2021, Four Ports)
Unsigned
iMac21,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
iMac (24-inch, M1, 2021, Two Ports)
Unsigned
iMac21,2 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
Mac mini (M1, Late 2020)
Unsigned
Macmini9,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Air (M1, 2020)
Unsigned
MacBookAir10,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b 
MacBook Pro (13-inch, M1, 2020)
Unsigned
MacBookPro17,1 19.01 GBUniversalMac_26.1_25B5042k_Restore.ipsw SHA-256 eeeca81b782137cd910398a0aad08bacc462086d18a8a8d48225dc95e956df0b No device matches.
Version
macOS 26.1 beta
Build
25B5042kReleased
September 22, 2025
Channel
Developer & public beta
Previous
macOS 26.0
Next
macOS 26.0.1
How to install macOS 26.1 beta from the IPSW
Four steps, and the one that matters most is the first.
Back up first
A restore erases the device. Make an archived backup in Finder or the Apple Devices app — an iCloud backup taken on a newer version cannot be restored onto an older one. Our backup guide covers the difference.
Get the file for your exact model
Check Settings → General → About → Model Name, then download the IPSW for that device. The download shows the file size; compare it with the SHA-256 under Details if you want to be certain the file is intact.
Restore in Finder or Apple Devices
Connect with a cable, select the device, then hold Option (Mac) or Shift (Windows) and click Restore to choose the .ipsw. Update keeps your data but only works upward; Restore erases and is how you downgrade.
Set up or restore your backup
After the restore the device starts fresh. Restore the backup you made — only if it came from the same or an older version than the one you just installed.
Questions? Answers.
Can I restore macOS 26.1 beta today?
Not at the moment — Apple has stopped signing 25B5042k, so a restore will be rejected at the final step. The files remain here for reference and for signed re-releases.
Which is the right file for my device?
Match the identifier in Settings → General → About (or under the model's name here) against the one on each row. Wi-Fi and Cellular iPads share a file; different generations never do. Restoring the wrong device's IPSW simply fails — it cannot damage the device.
What does "signed" mean?
Apple's servers must approve a firmware before a device will accept it, and Apple only approves the builds it is currently shipping. A signed file can be restored today; an unsigned one is rejected at the end of the process, however you obtained it. Signing status changes without notice, usually within days of a newer release, which is why this catalogue rechecks it automatically.
Will I lose my data?
A Restore erases the device — that is what makes a downgrade possible. An Update with an IPSW keeps your data, but only when moving to a newer version. Either way, make an archived backup on a computer first; an iCloud backup taken on a newer version will not restore onto an older one.