DeepTutor v1.0.0-beta.3 Release Notes

Release Date: 2026.04.08

Highlights

Remove LiteLLM Dependency

Replaced the litellm abstraction layer with native openai and anthropic SDKs across both the services and TutorBot layers. Added a new OpenAICompatProvider (covering OpenAI, DeepSeek, Mistral, StepFun, XiaoMi-MiMo, Qianfan, oVMS, and more) and a dedicated AnthropicProvider. The settings UI now includes a provider dropdown with auto base-URL filling. Auto-fallback to streaming is triggered when tool-call format errors occur (fixes #265).

Windows Math Animator Compatibility

Fixed SelectorEventLoop incompatibility on Windows by replacing asyncio.create_subprocess_exec with subprocess.Popen + reader threads + asyncio.Queue, preserving real-time line-by-line progress output. Also applied ProactorEventLoop policy for subprocess support on Windows.

Robust JSON Parsing for LLM Outputs

Seven agent modules (planner, idea, design, note, reporting, citation, data structures) now use parse_json_response() instead of raw json.loads(), correctly handling LLM responses wrapped in markdown code fences. A _UNSET sentinel was introduced for the fallback parameter so callers can explicitly request None as the failure value.

Guided Learning Fixes

• Fixed KaTeX math rendering by configuring $...$ and $$...$$ delimiters, removing broken SRI integrity hashes, and adding parent-window fallback rendering for bare LaTeX text nodes.
• Fixed backend poll (fetchPageStatuses) overwriting user's tab navigation by only accepting current_index when the user hasn't navigated yet.
• Increased guide agent max_tokens from 8192 to 16384 to prevent HTML truncation.

Full Internationalization

Completed i18n coverage for the web UI — all hardcoded strings across workspace, utility, sidebar, and component pages are now translation-keyed with full English and Chinese locale files.

What's Changed

• fix(start-tour): tolerate non-UTF-8 subprocess output by @2023Anita in #259
• fix: use parse_json_response for LLM outputs to handle markdown fences by @kagura-agent in #263
• Fix Windows compatibility for Math Animator renderer by @kevinmw in #256
• fix: Windows compatibility + Guided Learning improvements by @kevinmw in #266
• docs: clarify github copilot provider login semantics by @LocNguyenSGU in #262

New Contributors

• @kagura-agent made their first contribution in #263
• @kevinmw made their first contribution in #256
• @LocNguyenSGU made their first contribution in #262

Full Changelog: v1.0.0-beta.2...v1.0.0-beta.3