---
title: "mrin — changelog"
description: "What changed in mrin, release by release — the control plane, the CLI, the SDKs, and fixes in the private alpha."
url: https://mrin.ai/changelog
---
# What changed, release by release.

The control plane, the CLI, the SDKs, and fixes as they land in the private alpha. Newest first. Anything listed here is live for alpha partners today.

Sep 14, 2026 · v0.1.0

## First coordinated release: control plane, CLI, and three SDKs at one version.

- Added · Every exec on a branch commits the whole microVM, memory and disk, on close; fork any commit into a new sandbox, or restore it as a new branch in the same one.
- Added · suspend / resume pauses the vCPUs with the VM resident; hibernate commits and frees the VM, and resume restores it from the commit.
- Added · Terminal output is retained per branch in sequence and read back over REST or tailed over one multiplexed WebSocket.
- Added · mrin CLI: spawn, exec, shell, fork, restore, checkpoint, suspend, resume, hibernate, scale, fs, images, ls.
- Added · TypeScript, Python, and Go SDKs generated from one contract and checked by a shared conformance suite.
- Added · Webhooks for exec.committed, sandbox.spawned, sandbox.forked, and branch lifecycle events; idempotency keys on exec.

Want a primitive that isn't here yet? bring a sample on a call and we will work it out

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