What's new
September 14, 2026
- E2B Embed for self-hosted deployments with Docker Compose, Terraform or Kubernetes
- Automatic
429retries in the SDKs — up to three attempts, honouring the server's delay - Configurable minimum free disk when creating a template
- Dedicated E2B client on Desktop and Code Interpreter with explicit API key binding
- HTTP
503now raisesServiceBusyError - New guides: OpenAI Agents API, Volumes beta limitations, Secrets management
September 7, 2026
- Workspaces rolling out in the console — one place to manage access across projects
- Cursor self-hosted agents, with dispatcher and worker templates
- HTTPS backend ports on sandbox creation — see Public URLs
- Higher stream concurrency in the Python SDK across four connection pools
- Loki is optional for self-hosted deployments
- Dashboard sandbox quickstart with copyable CLI and SDK code
August 31, 2026
- Wildcard domains in network transform rules (a single leading wildcard)
- Server-side API key validation replaces client-side checks
- Readable proxy errors for browser requests, with CORS headers
- The sandbox
gitmodule is deprecated in favour ofcommands.run— see Git in a sandbox - CLI config file scope changed;
--configand--pathflags removed
August 24, 2026
- Bring your own SOCKS5 proxy for sandbox egress
- Sorting and filters for sandbox lists (order, template)
- Snapshot commands in the CLI: create, list, delete
- Machine-readable sandbox placement errors
- Multi-connection SDK client that binds connection config once
August 17, 2026
- Sandbox workload identity in the SDKs — short-lived tokens by audience
- The Python SDK moves to a Rust HTTP stack
- Detailed placement failure reasons instead of generic messages
- Concurrency add-ons managed from the billing dashboard
August 10, 2026
- Reverse-proxy service retired on self-hosted clusters
- SSL trust store repaired in template builds
- Separate egress marking for template builds and sandboxes on BYOC clusters
- Python SDK installs alongside newer
wcmatchversions
Still on V1 template builds?
They stopped working on August 1, 2026, together with E2B_ACCESS_TOKEN. See Migrating to V2.