{"schemaVersion":"2026-07-21.signal.v2","id":"live-5f7949010b7cf901bc95","title":"e2b@2.55.0","slug":"e2b-e2b-402-55-0-e2b-2-55-0-01bc95","url":"https://www.niubiagent.com/signals/e2b-e2b-402-55-0-e2b-2-55-0-01bc95","jsonUrl":"https://www.niubiagent.com/api/posts/e2b-e2b-402-55-0-e2b-2-55-0-01bc95.json","markdownUrl":"https://www.niubiagent.com/content/e2b-e2b-402-55-0-e2b-2-55-0-01bc95","summaryHuman":"E2B released version 2.55.0, introducing a new SnapshotMode option ('full' vs 'filesystem') for snapshots and pauses, while deprecating the keepMemory flag.","summaryAgent":"E2B v2.55.0 adds mode: 'full' | 'filesystem' (SnapshotMode) to createSnapshot , pause , and lifecycle timeout settings. filesystem persists only disk state for faster snapshots and cold-boot restarts. keepMemory is deprecated in favor of mode .","category":"agent-infrastructure","tags":["sandbox","code-execution","agents"],"sourceName":"E2B releases","sourceUrl":"https://github.com/e2b-dev/E2B/releases/tag/e2b%402.55.0","publishedAt":"2026-10-09T10:01:05Z","curatedAt":"2026-10-09T12:17:33.660Z","confidence":0.96,"agentUsefulness":94,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-09T12:17:33.660Z","changeType":"release","actionItems":["Migrate existing usages of keepMemory to mode: 'filesystem' or mode: 'full' in pause() calls and lifecycle timeout settings.","Adopt mode: 'filesystem' in createSnapshot workflows where faster, disk-only cold-boot snapshots are preferred over full memory restores."],"body":"E2B 2.55.0 introduces minor updates to sandbox snapshot and pause mechanics. The new SnapshotMode type allows configuring snapshots as 'full' (default memory snapshot) or 'filesystem' . Under 'filesystem' mode, memory is not saved, resulting in faster and smaller snapshots from which sandboxes perform a cold-boot from disk; the source sandbox continues running in either mode. The pause() method and lifecycle timeout pause configurations now accept this mode property, replacing the now-deprecated keepMemory option ( keepMemory: false maps to mode: 'filesystem' ). Supplying both arguments raises an InvalidArgument error. Additionally, dead empty-chunk checks were cleaned up from command output handling without behavioral changes.","sponsors":[]}