FastGPT v4.8.15 Feature and Fix Release Notes

This article records configuration and changes from a historical FastGPT release. Use it to understand that release, and consult the release notes for your installed and target versions before applying dependencies, configuration, or migration steps.

New Core Features

This release adds production-ready features for self-hosted FastGPT deployments:

• API Dataset support, which replaces the deprecated external file library; refer to the official API Dataset documentation for implementation details
• A dedicated Toolbox page for viewing all available system resources, with enhanced commercial edition admin panel controls for configuring system plugins and custom categories
• Native HTML rendering support in Markdown, with an optional preview mode that blocks all scripts and only displays static content
• Custom system-level file parsing service integration, compatible with third-party PDF parsing tools
• Direct reconfiguration of existing collections without deleting and re-importing dataset files
• Commercial edition admin panel support for configuring custom sidebar navigation links

System Optimization Improvements

Multiple backend and frontend behaviors are refined to improve reliability and usability:

• Enhanced Base64 image truncation detection
• Improved i18n cookie detection for multi-language deployments
• Updated Markdown text splitting to support heading-only sections with no associated content
• Revised string variable substitution logic: unassigned variables now resolve to undefined instead of retaining the raw variable ID string
• Global variable default values now apply to API calls, and custom variables now support configurable default values
• Updated HTTP Body JSON parsing to convert undefined values to null via regex, reducing parsing error rates
• Enhanced scheduled execution workflows with run log tracking and retry functionality to lower error rates

Step-by-Step: Enable Markdown HTML Preview Mode

This workflow uses only native FastGPT editor controls:

1. Open the Markdown editor within your FastGPT workspace
2. Locate the display mode toggle in the top toolbar of the editor
3. Select the "Preview Mode" option to enable script-blocking static content rendering

Resolved Bug Fixes

This release addresses high-priority stability and functionality issues:

• Fixed authentication errors for share link like/upvote interactions
• Corrected an issue where switching to an auto-execute app on the chat page could incorrectly trigger non-auto-execute apps
• Fixed audio playback authentication failures
• Resolved a bug where plugin app dataset citation limits were permanently capped at 3000
• Updated workflow edit history storage: removed local storage dependencies and added forced auto-save on abnormal application exit
• Fixed a special variable substitution bug where strings starting with $ failed to be replaced correctly

Source: FastGPT official documentation and source