DeepSeek Harness ships two releases: V4.1 Flash-1017 support and breaking plugin changes
The new Harness builds add V4.1-Flash-1017 support, DeepSeek's own Search and Fetch APIs, custom plugin indexes, hot reload and experimental plugins, with breaking changes for plugin authors.
🐳With new DeepSeek release, come TWO DS Harness releases, within hours of each other There seem to be breaking changes for plugin authors (yay!). Here's what's new: - New model: supports DeepSeek-V4.1-Flash-1017 (duh) - Search and Fetch: DeepSeek's own APIs, toggle them in Web Search settings - Plugin sources: add custom plugin indexes, or hit "Let Agent create a plugin" - Hot reload: plugin updates apply without a restart and keep dependencies in sync - Experimental plugins: Git worktrees, reasoning translation, raw session logs and a Node debugger - Minimal mode now reads images and auto-compacts long chats - Plugin authors: new extension points for messages, rendering, the new-session page and the model picker, plus breaking changes, so check the notes - On Windows and Linux, Page Up with the right sidebar collapsed no longer shifts the whole UI to the left
This post quotes another post: x.com/deepseek_ai/status/2111375640717033777