# Open-Source Enterprise AI Platform FastGPT Releases v4.16.0 with User-Level Code Sandboxes and Knowledge Base Metadata

- Link: https://www.thailand-business-news.com/pr-news/open-source-enterprise-ai-platform-fastgpt-releases-v4-16-0-with-user-level-code-sandboxes-and-knowledge-base-metadata
- Published: 2026-08-20T12:48:00+07:00
- Author: PR Newswire

Audit logs move from scheduled deletion to cold archive in object storage, and system
tool keys are now encrypted at rest

HANGZHOU, China, Aug. 20, 2026 /PRNewswire/ — FastGPT, an open-source AI application
platform for organizations, released version 4.16.0 on Aug. 16, 2026. The release
reworks three areas: how code sandboxes are provisioned, what metadata a knowledge
base can carry, and how audit logs are retained.

Code sandboxes are now bound to an application and a user rather than to individual
conversations. Multiple conversations from the same user in the same application
reuse one sandbox instance, with files isolated per session directory. Sandbox HTML
and files can be previewed through short-lived read-only links, removing a repeated
upload to object storage. Per-instance CPU, memory, storage, auto-suspend and auto-
archive limits are now configurable through environment variables. The E2B sandbox
provider has been removed; existing deployments migrate to OpenSandbox or Sealos
Devbox.

Knowledge base entries accept custom metadata, importable as JSON through the API
or CSV and Excel templates. Retrieval results and backup exports preserve the field,
so source, version and clearance labels can travel with a retrieved answer back 
into business systems.

On the operations side, audit logs are transferred to cold archive storage instead
of being deleted on expiry, administrator-configured tool keys are encrypted, and
the system initialization endpoint no longer returns model API keys, request addresses
or internal configuration. The upgrade guide also states a boundary for deploying
teams: the sandbox preview proxy should use an origin separate from the main site,
since same-origin deployment places preview scripts inside the main site’s security
boundary, and the system does not currently enforce origin isolation.

"Sandboxes, metadata and audit log retention each touch deployment boundaries, so
confirm those and the migration order before choosing an upgrade window," a FastGPT
spokesperson said.

**About FastGPT**

FastGPT is an open-source AI application platform for organizations, offering RAG
knowledge bases, visual workflows, agent orchestration, skills, MCP support and 
multi-channel publishing, available as a cloud service, community self-hosted deployment
or commercial on-premises deployment. As of Aug. 19, 2026, the labring/FastGPT repository
on GitHub has 29,387 stars, 7,267 forks and 273 releases. FastGPT reports on its
website that it serves more than 1,000 enterprise customers. More information is
available at fastgpt.io.

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