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Agents tracked: 283 Downloads (7d): 261M up 5.8% GitHub stars: 6.2M VS Code installs: 151M Releases (7d): 289 Agent status: 1 with issues Updated Oct 9, 2026
Release GitHub Releases

E2B 2.52.0 released

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…; 03887ad: Apply .dockerignore and fileIgnorePatterns /…

What changed

  • 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…
  • 03887ad: Apply .dockerignore and fileIgnorePatterns / fileignorepatterns 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 (nodemodules, .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 / fileignorepatterns 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…

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