v0.10.0 — Release notes draft

Range: v0.9.6 → main (201 commits, 2026-01-21 → today)

Highlights

• Reasoning UI: per-model reasoning toggle, configurable reasoning effort for capable models, streaming reasoning in a fixed-height fade viewport (#2252, #2259, #2262, #2263).
• Image viewer: fullscreen lightbox for chat images, with pinch-zoom and pan gestures (#2261).
• Per-model inference provider selection: pick the provider per model, with provider icons in the model list, settings nav, and next to the model name; powered by a bits-ui Select.
• Mobile polish: larger header tap targets, no mobile-specific text shrinking, smarter haptic feedback (incl. a streaming haptic burst on first token), iOS Safari thinking-block fix.
• Conversation flow: ChatGPT-style scroll positioning for new messages, instant scroll on conversation switch, immediate stop on abort, copy button on user messages, inline title editing via double-click, nav item kebab dropdown.
• MCP & tools: configurable MCP_TOOL_TIMEOUT_MS, DNS-level SSRF protection on MCP endpoints, MCP examples for any tools-enabled model (not just router), Exa crawling tool, timezone-aware tool prompts, refined search-tool prompt.

Features

• Reasoning effort configuration for capable models (#2252)
• Streaming reasoning in fixed-height fade viewport (#2262), mobile cap (#2263)
• Per-model reasoning toggle in model settings
• Fullscreen lightbox + pinch-zoom/pan for chat images (#2261)
• Per-model inference provider selection with icons (settings + model list + chat header)
• Copy button on user messages; inline title edit on double-click in sidebar
• Page title on model pages; link username to HF profile in sidebar (HuggingChat)
• Smooth/anchored scroll on new messages; instant scroll between conversations
• Kebab dropdown for nav item edit/delete (#2246)
• Per-model system-prompt enable/disable toggle (#2231)
• Timezone support in tool prompts (#2233)
• Configurable MCP_TOOL_TIMEOUT_MS (#2063)
• Exa crawling MCP tool enabled; MCP prompt guidance for HTML apps
• Iframe embedding restricted to huggingface.co (#2053)
• Haptic feedback for mobile web (incl. burst on first token)
• New router models: DeepSeek‑V4‑Pro, Kimi‑K2.6, MiniMax‑M2.7, Molmo‑8B, Qwen3‑Coder‑Next, plus descriptions for GLM‑5.1, Gemma 4, Qwen 3.5 medium, etc.

Bugfixes

• Respect USE_USER_TOKEN in OpenAI endpoint (#2187)
• sameSite cookie default now follows secure flag — fixes HTTP deployments (#2249)
• Defer to router for model tool/multimodal capability on HuggingChat (#2251)
• DNS-level SSRF protection on MCP endpoints (#2195)
• Abort streaming immediately on stop; preserve partial output; treat APIUserAbortError correctly
• Re-apply interrupted flag after invalidateAll on abort; fix stale UUID errors
• Fix </think> tag leaking in MCP tool flow for reasoning models
• Skip empty prose wrapper before tool blocks; truncate long tool names on one line
• Off-by-one in spacer activation + tighter scroll threshold
• iOS Safari: collapsed thinking blocks no longer take full height
• Safari: line-clamp applied to reasoning toggle button
• Default value for PUBLIC_APP_ASSETS prevents undefined asset paths
• Tools/multimodal toggles fall back to model capability

Performance & infrastructure

• Optimize conversation stats aggregation (#2079)
• Add MongoDB missing indexes; MongoDB read preference support (#2090)
• MONGODB-AWS auth (#2200)
• Refactor: native SvelteKit API routes (replace Elysia)
• Extract conversation write path into service + projector (§2)
• Bump deps: svelte, kit, ajv, devalue, hono, qs, uuid, fast-uri, MCP SDK 1.25.2, undici, etc.

Other changes

• Dark-mode grays switched to high-contrast neutral palette; numerous style tweaks (nav, badge, tool chips, model settings header, mobile header)
• Theme button group replaced with a select dropdown in settings
• Markdown rendering refresh; shimmer on active labels; refined tool detail visuals
• Switch default multimodal model to zai-org/GLM-4.6V; switch task model to Llama-3.1-8B-Instruct
• Drop final streaming mode from settings; remove dead code & stale metrics

Generated locally — not committed, not tagged, not published. To publish:

gh release create v0.10.0 --title "v0.10.0" --notes-file release-notes-v0.10.0.md
# or, to use GitHub's auto-generated notes from .github/release.yml:
gh release create v0.10.0 --generate-notes