smolvm

v0.8.2 Breaking

This release includes 1 breaking change for platform teams planning a safe upgrade.

Published 1d Virtualization

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

containers crun libkrun microvm rust virtual-machine

Affected surfaces

auth breaking_upgrade

ReleasePort's take

Light signal

editorial:auto 1d

Version v0.8.2 introduces DNS allow‑host egress control in libkrun, fixes VM lock release on stop, adds Linux ARM64 builds, hardens the runtime, and bumps dependencies to v0.8.2.

Why it matters: Enforce DNS allow‑host egress (severity 40) tightens network security; releasing VM lock on stop (severity 50) guarantees reliable restarts; adding ARM64 support (severity 40) expands deployment options; bumping to v0.8.2 resolves the missing arm64 library.

Summary

AI summary

Updates feat, fix, and bump across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Enforce DNS allow-host egress in libkrun, drop guest proxy. Enforce DNS allow-host egress in libkrun, drop guest proxy. Source: llm_adapter@2026-06-02 Confidence: high	—
Feature	Medium	Add runtime hardening and interactive PTY support. Add runtime hardening and interactive PTY support. Source: llm_adapter@2026-06-02 Confidence: high	—
Feature	Medium	Add Linux ARM64 release support. Add Linux ARM64 release support. Source: llm_adapter@2026-06-02 Confidence: high	—
Dependency	Low	Bump version to v0.8.2. Bump version to v0.8.2. Source: llm_adapter@2026-06-02 Confidence: high	—
Bugfix	Medium	Release VM lock on stop to allow machine restarts. Release VM lock on stop to allow machine restarts. Source: llm_adapter@2026-06-02 Confidence: high	—
Bugfix	Medium	Fix missing arm64 libkrun base .so caused by gitignore. Fix missing arm64 libkrun base .so caused by gitignore. Source: llm_adapter@2026-06-02 Confidence: high	—

Full changelog

What's Changed

feat: enforce DNS allow-host egress in libkrun, drop the guest proxy by @BinSquare in https://github.com/smol-machines/smolvm/pull/331
feat: runtime hardening + interactive PTY by @BinSquare in https://github.com/smol-machines/smolvm/pull/334
fix: release the VM lock on stop so a machine can restart by @BinSquare in https://github.com/smol-machines/smolvm/pull/335
feat: linux arm64 release support by @BinSquare in https://github.com/smol-machines/smolvm/pull/339
bump: v0.8.2 by @BinSquare in https://github.com/smol-machines/smolvm/pull/340
fix: arm64 libkrun base .so dropped by gitignore by @BinSquare in https://github.com/smol-machines/smolvm/pull/341

Full Changelog: https://github.com/smol-machines/smolvm/compare/v0.8.1...v0.8.2

Breaking Changes

Removed the guest proxy in libkrun due to DNS allow‑host egress enforcement

View diff on GitHub

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About smolvm

Tool to build & run portable, lightweight, self-contained virtual machines.

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