---
title: "Week of April 10, 2026"
description: "File-level volume mounts, TypeScript SDK streams, and `msb shell` removal."
icon: "bolt"
---

<Tip>
  **Released this week:** [v0.3.11](https://github.com/superradcompany/microsandbox/releases/tag/v0.3.11) · [v0.3.12](https://github.com/superradcompany/microsandbox/releases/tag/v0.3.12)
</Tip>

## New features

- **File-level volume mounts.** Mounts now target individual files, not just directories. See [Sandbox volumes](/sandboxes/volumes).
- **`fs.readStream` in the TypeScript SDK.** Async-iterable file reads instead of buffering whole files in memory.
- **`sandbox.metricsStream()` in the TypeScript SDK.** Async iterable of CPU, memory, and I/O samples, mirroring the Rust SDK.
- **`msb shell` removed.** Use `msb exec --tty <sandbox> -- bash` instead.

## Bug fixes

- The network proxy now recomputes `Content-Length` after substituting secrets into request bodies.
- `msb run` execution options (env, cwd, signal handling) only apply when `--tty` is set.
- Extended attributes on symlinks and `listxattr` initialization now match the underlying VFS.
