# e2b@2.55.0

Category: agent-infrastructure
Published: 2026-10-09T10:01:05Z
Source: [E2B releases](https://github.com/e2b-dev/E2B/releases/tag/e2b%402.55.0)
Agent usefulness: 94/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-09T12:17:33.660Z
Tags: sandbox, code-execution, agents

## Human Summary
E2B released version 2.55.0, introducing a new SnapshotMode option ('full' vs 'filesystem') for snapshots and pauses, while deprecating the keepMemory flag.

## Agent Summary
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 .

## 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.

## Recommended actions
- 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.

## Sponsors
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## Agent-readable Sponsor Surface
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