> ## Documentation Index
> Fetch the complete documentation index at: https://e2b-mintlify-fc57f4d1.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Product updates and new releases from E2B.

<Update label="2026-06-29" description="Week of June 22 – June 29, 2026">
  ## New features

  **Filesystem-only snapshots**

  You can now pause a sandbox by persisting only the filesystem, skipping the memory snapshot. This produces a lighter snapshot that boots fresh on resume — useful when you don't need to preserve in-memory state. Available via `pause({ memory: false })` and as an auto-pause option on `lifecycle.onTimeout`. See [Filesystem-only snapshots](/docs/sandbox/filesystem-only-snapshots).

  **Paginated templates API**

  `GET /v2/templates` now supports pagination, making it practical to list large numbers of templates. Both the JavaScript and Python SDKs ship with a shared paginator that gives you a consistent iteration API across languages.

  **Python SDK logger option**

  The Python SDK now accepts a `logger` option for request and debug logging, matching the JavaScript SDK and making it easier to trace SDK behavior in your own logs.

  ## Updates

  **Streaming uploads and downloads**

  File uploads and downloads in the SDKs, volumes, and template build-context uploads now stream from disk instead of buffering the full payload in memory. Large files no longer require proportional memory on the client.

  **Auto-resume on by default**

  Auto-resume is now enabled by default for paused sandboxes. Requests to a paused sandbox will transparently resume it. See [Auto-resume on request](/docs/sandbox/auto-resume).

  **More reliable resume retries**

  When a resume request times out, retries are now pinned to the same node, reducing tail latency on intermittently slow resumes.

  **Webhook events include execution metrics**

  [Sandbox lifecycle webhooks](/docs/sandbox/lifecycle-events-webhooks) now always include execution metrics, so you can monitor sandbox usage directly from webhook payloads without an extra API call.

  **Sandbox status timestamp**

  Sandbox status responses now include the timestamp of the last status change, making it easier to track sandbox lifecycle transitions.

  **Path-style S3 addressing**

  S3-compatible storage backends that require path-style addressing (e.g. MinIO and some on-prem deployments) are now supported for self-hosted deployments.

  **Template build name limit**

  Template build names are now capped at 128 characters to prevent oversized identifiers.

  **CLI authentication**

  The CLI now uses an OAuth-based login flow, replacing the long-lived access token flow for interactive sign-in. See [CLI authentication](/docs/cli/auth).

  ## Bug fixes

  * Fixed a leak in the JavaScript SDK where `CommandHandle.disconnect()` could leave the output subscription open.
  * Fixed quadratic memory growth in the Python SDK when accumulating large `stdout`/`stderr` from long-running commands.
  * Fixed the filesystem watch handle's callback and timeout behavior in the SDKs.
  * Fixed parsing of the sandbox pause request body when `Content-Length` was missing.
  * Fixed an NBD read-loop stall on `WRITE_ZEROES` operations (gated behind a feature flag).
  * Hardened orchestrator shutdown with graceful drain of in-flight sandboxes and template builds.
</Update>