---
title: Virtualization updates
framework: updates
role: article
role_heading: Article
path: updates/virtualization
---

# Virtualization updates

Learn about important changes to Virtualization.

## Overview

Overview Browse notable changes in Virtualization. June 2025 Take advantage of more efficient storage utilization in virtual machine (VM) images using the Apple Sparse Image Format (ASIF). Its space-saving allocation results in a smaller disk footprint and optimized transfer for VM disk images with VZDiskImageStorageDeviceAttachment. Support vmnet custom network topologies to enable VM-to-VM communications based on a logical network with customized configuration. Easily discover a VM’s on-process queue using this new property on  VZVirtualMachine. June 2024 Adopt nested VMs to run Linux VMs in virtualized Linux VM hosts. Allow emulated USB Mass Storage devices to attach to and detach from a running VM using Extensible Host Controller Interface (XHCI) controller hot-plug capabilities. Access iCloud from macOS 15 VMs.

## See Also

### Technology and frameworks

- [Accelerate updates](updates/accelerate.md)
- [Accessibility updates](updates/accessibility.md)
- [ActivityKit updates](updates/activitykit.md)
- [AdAttributionKit Updates](updates/adattributionkit.md)
- [App Clips updates](updates/appclips.md)
- [App Intents updates](updates/appintents.md)
- [AppKit updates](updates/appkit.md)
- [Apple Intelligence updates](updates/apple-intelligence.md)
- [AppleMapsServerAPI Updates](updates/applemapsserverapi.md)
- [Apple Pencil updates](updates/applepencil.md)
- [ARKit updates](updates/arkit.md)
- [Audio Toolbox updates](updates/audiotoolbox.md)
- [AuthenticationServices updates](updates/authenticationservices.md)
- [AVFAudio updates](updates/avfaudio.md)
- [AVFoundation updates](updates/avfoundation.md)