v4.6.0 (Beta)

[osy]

Highlights

• QEMU v9.1.0 The backend has been updated to the latest upstream QEMU which brings with it a variety of bug fixes and performance improvements.
• (macOS 15) Nested virtualization for Linux Linux VMs using Apple Virtualization backend on macOS 15 and M3 or newer will now have nested virtualization enabled by default.
• (macOS 15) Total Store Ordering for QEMU VMs using QEMU backend on macOS 15 can now enable TSO (in QEMU settings). When TSO is enabled on a guest operating system that is aware of the system register (i.e. Rosetta for Linux), performance of Intel emulation within the guest can be greatly improved.

Notes

• There is a known issue amongst some users with UTM running on macOS 15 where accesses to files will fail due to permission error. We are still investigating this ("The file couldn't be opened" when attempting to change VM settings #6639) and related issues. In the meantime, we do not recommend upgrading to macOS 15.
• The update to QEMU v9.1.0 will likely introduce new issues and regressions. If you experience any problem (crashes, performance, errors) that was not evident in v4.5.x, please open an issue and provide all the requested information. It would also be helpful if you can provide a reproducible example and note the last version of UTM where it worked properly.

Changes (v4.6.0)

• Updated to QEMU v9.1.0
• Fixed "RPC timeout" when stopping a VM
• Fixed a race condition when cleaning up SPICE objects
• Localization: Updated Chinese (Hong Kong, Simplified) (thanks @changanmoon)
• (iOS 16+) Home: Always show the sidebar
• (macOS 15) Enable nested virtualization when available

Issues

Please check the full list on Github and help report any bug you find that is not listed.

Installation

• iOS
• macOS

File	Description	Installation	JIT	Hypervisor	USB
UTM.deb	Jailbroken iOS version	Open in Cydia, dpkg, or Sileo	Yes	Yes(1)	Yes
UTM.dmg	macOS version	Mounting and copying UTM.app to /Applications	Yes	Yes	Yes
UTM.ipa	Non-jailbroken iOS version (sideloading)	AltStore, etc (see guide)	Yes(2)	No	No
UTM-HV.ipa	Non-jailbroken iOS version (TrollStore)	TrollStore	Yes	Yes(1)	Yes
UTM-SE.ipa	Non-jailbroken iOS version (sideloading)	AltStore, enterprise signing, etc	No	No	No
UTM-Remote.ipa	Remote client	Any	No	No	No

1. Hypervisor on iOS requires an M1 iPad or newer.
2. Enabling JIT may require a separate JIT enabler such as Jitterbug or Jitstreamer.

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This discussion was created from the release v4.6.0 (Beta).

[ylluminate]

This is great to see! Thank you!

[trukhinyuri]

Wait nested virtualization for windows for WSL2!

[ryne007]

egrep -c '(vmx|svm)' /proc/cpuinfo returns 0

it shows nested virtualization not supported on the lastest UTM beta..
I have tried this on M4 pro using ubuntu 24.04 iso