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Release Wed, Aug 19, 2026 2 min read

Deepseek Harness 0.1.0-rc.8

Original release notes

| English

  • ,DeepSeek ,/goal/plan ,@
  • Claude Code Codex Profile Bundle ,Codex
  • Windows PTY PowerShell ,
  • OpenAI ,
  • ,HOME ~
  • ,
  • ,web_search reportDelivery
  • , dsh web
  • SQLite ,
  • :"DeepSeek Harness",

SDK

  • Python SDK 4 Agent , rg / glob MCP stdio

New Features

  • Expand multimodal support with configurable native image requests for DeepSeek adapters, image input for commands such as /goal and /plan, and file and session references in the @ menu by @LegGasai and @CreatixChu
  • Make Claude Code and Codex subagents installable on demand as Profile Bundles, with non-interactive permission modes and named instances for Codex by @pku-xht
  • Add persistent PowerShell session support to Windows PTY terminals and enable it by default in the Minimal preset by @Elevator14B

Bug Fixes

  • Fix model request failures caused by oversized images or excessive accumulated image payloads by @CreatixChu
  • Preserve displayed response prefixes in follow-up prompts and forks after cancelling streamed generation by @CreatixChu
  • Fix custom OpenAI-compatible gateway failures caused by request-format differences or missing reasoning content by @LegGasai

Improvements

  • Improve layout and information presentation, including ~ abbreviations for home directories, narrow composer layouts, and feedback UI by @07akioni and @Chinesezjc
  • Improve UI interactions for sidebar search focus, workflow panels, model selection, and retrying failed local file opens by @yixiangihsiang, @pku-xht, @LegGasai, and @07akioni
  • Improve tool calls with concurrent web_search queries and prompt subagent report delivery that wakes parent tasks by @Dudu-0223
  • Improve installation and startup by reducing dependency download size and opening the browser automatically for local dsh web runs by @imccyu and @lsdsjy
  • Improve fork performance for sessions with large histories by @Magolor

Chores

  • Improve SQLite read, write, and fork performance while reducing storage size; the storage format is incompatible by @Magolor
  • Clarify brand usage: "DeepSeek Harness" is a registered trademark; see the Brand Usage Guidelines by @imccyu

SDK

  • Cover all four built-in Agent Presets and the dependencies required for rg / glob search and MCP stdio tools in the Python SDK runtime by @koalazf99

Full Changelog: