Deployment and upgradesOfficial documentation5 min readDeployment and upgrades

FastGPT 4.15.05 Core Platform Improvements

UI & Frontend Usability Fixes This update includes several frontend quality-of-life and display improvements.

UI & Frontend Usability Fixes

This update includes several frontend quality-of-life and display improvements. First, HTML output automatically switches to preview mode immediately after generation, removing the need for manual preview window opening. Second, app, dataset, file, and folder names now truncate to fit available container width, with full, untruncated names displayed when hovering over truncated text. Third, invalid dataset citation markers are filtered out to clean up displayed reference content and reduce visual clutter.

LLM & Tooling Security & Compatibility Updates

Multiple improvements address LLM compatibility and tool execution security.

Removed LLM Request Parameters

Built-in LLM requests no longer include the following optional parameters, resolving compatibility issues with certain models:

ParameterAction
temperatureRemoved from all built-in LLM requests
max_tokensRemoved from all built-in LLM requests

When a connected tool returns an empty response, FastGPT automatically inserts the string "none" to prevent errors from models that require non-empty tool response inputs. A secondary permission check is now enforced prior to running any system tool, adding an extra layer of access validation before sensitive operations execute.

Dataset Indexing & Error Handling Enhancements

Dataset management and error resolution workflows are streamlined in this update. Improved error prompts now provide clear, actionable details for dataset indexing failures, and include a one-click retry option for all failed indexing items. Additionally, SSRF checks are optimized to account for redirect responses, strengthening the security of outbound network requests made during dataset processing and other platform operations.

Source: FastGPT official source

Applicability and version scope

Use this page for the documented Deployment and upgrades scenario. Confirm the FastGPT, dependency, API, and deployment versions in the official source before applying a change.

Rollback guidance

Restore the prior technical-content authority snapshot. Restore saved configuration and data snapshots, then repeat the smallest verification scenario.