e2b@2.52.0

Minor Changes

• 2de0cc3: Cap sandbox fork count at 20. e2b sandbox fork --count, JavaScript Sandbox.fork({ count }), and Python Sandbox.fork(count=...) reject a count outside 1–20 before the API call. Counts from 21 through 100 used to reach the API. Omitting count still leaves the field off the request so the API default applies.

• 03887ad: Apply .dockerignore and fileIgnorePatterns / file_ignore_patterns the way Docker does when copying files into a template, so ignored files are no longer uploaded or included in the files hash:

  • A pattern that matches a directory (node_modules, .git, dist/) now excludes everything under it, and a leading / is ignored.
  • ! patterns re-include paths; the last matching pattern wins.
  • In Python, patterns now also apply when the copied path contains . or .. segments (for example copy(".")).
  • fileIgnorePatterns / file_ignore_patterns are applied after the .dockerignore lines, so they take precedence.
  • Absolute patterns pointing into the context directory are treated as relative to it.
  • Brace expansion ({a,b}) is not supported, as in Docker. In JS, fileIgnorePatterns such as **/*.{env,pem} previously expanded and now match {env,pem} literally; list each pattern separately instead (**/*.env, **/*.pem).
  • In Python, copying a symlink to a directory copies the link itself instead of the directory's contents, as in JS.
  • Copying a path inside an ignored directory now fails with "No files found", as in Docker. An invalid pattern (such as an unterminated [) now raises an error.

  Directory sizes are no longer part of the files hash, since they depend on the filesystem rather than on the copied files. The files hash of copy() steps that copy directories or are affected by ignore patterns changes once, so those steps are rebuilt on the next build.

• 2f92cc3: Add an http_version (Python) / httpVersion (JS) connection option, "1.1" or "2" (default), also settable with the E2B_HTTP_VERSION environment variable, to pin requests to the E2B API, to sandboxes (commands, filesystem, PTY) and to volume content to HTTP/1.1. It can also be bound once on a client: E2B(http_version="1.1") / new E2B({ httpVersion: '1.1' }).

Patch Changes

• 8c7e5cb: Update the Cloudflare Vitest pool dependency to include a worker disposal fix.
• 97522f8: Retry control-plane HTTP requests after 502 and 503 responses and failures to establish the connection (connection refused, DNS, unreachable host), in addition to 429. Any other network error (dropped connection, or the opaque TypeError browsers and Cloudflare Workers raise) is retried too, except for POST operations not known to be safe to replay (sandbox creation, fork, snapshot, volume/secret/API-key/webhook creation), which the server may already have processed. Retry-After is honored when the server sends one; otherwise retries back off exponentially with jitter, starting at 100 ms and capped at 10 s. The existing retries option (default 3, 0 to disable) and request-timeout budget apply to all of them.
• 8c7e5cb: Update the protobuf and OpenAPI clients, terminal styling, and interactive prompts to compatible minor releases.
• 4975149: Remove unused internal constants and attributes, and share the command handle setup between Commands.run and Commands.connect