# DeerFlow 2.1.0: pluggable memory backends, new sandbox providers, breaking config changes

Date: 2026-09-24

DeerFlow 2.1.0 was published on 2026-09-24. The release notes state that it closes the 2.1.0 milestone with 772 merged pull requests since 2.0.0 and adds pluggable memory backends (`memory.manager_class`), four additional sandbox providers, an out-of-tree extension system, authentication and authorization features, and workspace features such as projects and conversation branching. Listed breaking changes include: `/mnt/skills` is reserved for managed skills, `sandbox.replicas` is enforced as a capacity limit for E2B, memory settings moved to `memory.backend_config`, and Docker now binds the published port to `127.0.0.1` by default. Source: [v2.1.0 release notes](https://github.com/bytedance/deer-flow/releases/tag/v2.1.0).

Relation to the directory: see [DeerFlow](/tools/deer-flow) and [DeerFlow vs OpenHands](/compare/deer-flow-vs-openhands).

Official source: https://github.com/bytedance/deer-flow/releases/tag/v2.1.0

Related tool: [DeerFlow](https://multiagentguide.top/tools/deer-flow.md)

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Data as of 2026-09-24. Not affiliated with listed projects. HTML version: https://multiagentguide.top/new/deerflow-2-1-0