v0.1.451-beta

## Bug Fixes and more cross platform support

### To update Unsloth or install a new Unsloth Studio, you must use:
**macOS, Linux, WSL:**
```
curl -fsSL https://unsloth.ai/install.sh | sh
```
**Windows:**
```
irm https://unsloth.ai/install.ps1 | iex
```
> [!WARNING]
> **DO NOT USE `unsloth studio update` since packaging will not get the latest updates**


## What's Changed
* Bump install.sh / install.ps1 pin to unsloth>=2026.6.1 by @danielhanchen in https://github.com/unslothai/unsloth/pull/5977
* Port KTO logps truncation guard to TRL 1.x _compute_logps refactor by @danielhanchen in https://github.com/unslothai/unsloth/pull/5996
* CI: track deepseek_ocr2 compile timeout in known-broken list by @danielhanchen in https://github.com/unslothai/unsloth/pull/5995
* fix(studio): disable mlx gc for none by @Lyxot in https://github.com/unslothai/unsloth/pull/5991
* Normalize shell scripts to LF in .gitattributes by @danielhanchen in https://github.com/unslothai/unsloth/pull/5997
* Studio: enable audio input for Gemma 4 GGUFs; default chat model to Qwen3.5-4B-MTP by @danielhanchen in https://github.com/unslothai/unsloth/pull/6000
* Fix chat text cutoff at composer dock and speed up plus icon spin by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/5989
* Studio: refine tool call and reasoning trigger UI by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/5873
* fix: warn when localhost resolves to ::1 but Studio is bound only to 127.0.0.1 by @mvanhorn in https://github.com/unslothai/unsloth/pull/5994
* fix: persist Studio thread synchronously on first runStart so mid-stream refresh keeps the prompt by @mvanhorn in https://github.com/unslothai/unsloth/pull/5814
* Studio: enable GGUF tools with vision inputs by @Imagineer99 in https://github.com/unslothai/unsloth/pull/6009
* Studio: accept system-role messages in Claude Code requests by @Imagineer99 in https://github.com/unslothai/unsloth/pull/6006
* Studio: fix load_freeze audio-type tests for #6000's Gemma 4 `<|audio|>` probe by @danielhanchen in https://github.com/unslothai/unsloth/pull/6018
* Studio: fix chat preset persistence with fast mode by @Imagineer99 in https://github.com/unslothai/unsloth/pull/5870
* Studio: fix Repo tests (CPU) by stopping the ROCm test from leaking a fake utils into sys.modules by @danielhanchen in https://github.com/unslothai/unsloth/pull/6027
* Studio: stop ROCm amd-smi tests leaking a fake loggers into sys.modules (follow-up to #6027) by @danielhanchen in https://github.com/unslothai/unsloth/pull/6055
* Studio: emit usage and timings for MLX generation speed stats by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6068
* Studio: tag MLX loaded models as MLX instead of Base in chat by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6067
* Studio: remove red border on chat error messages by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6063
* Studio: keep chat in place when composer attachments resize it by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6070
* CI: allowlist deepseek_ocr2 in compiler full-model-sweep by @danielhanchen in https://github.com/unslothai/unsloth/pull/6085
* Restore KTO logps truncation guard for TRL (re-apply dropped #5996) by @danielhanchen in https://github.com/unslothai/unsloth/pull/6086
* Studio: stop leaking internal exceptions to API clients; harden sandbox path by @danielhanchen in https://github.com/unslothai/unsloth/pull/6072
* Formatting: ruff line-length 100 + drop blank after short local imports by @danielhanchen in https://github.com/unslothai/unsloth/pull/6079
* Fix MoE LoRA target parameter handling by @Datta0 in https://github.com/unslothai/unsloth/pull/5345
* Refactor VLM detection in studio by @Datta0 in https://github.com/unslothai/unsloth/pull/5245
* qwen 3.5 export fixes by @Datta0 in https://github.com/unslothai/unsloth/pull/5992
* [fix] Nvfp4 load by @Datta0 in https://github.com/unslothai/unsloth/pull/6087
* Studio: open the MCP dialog to the server list by @oobabooga in https://github.com/unslothai/unsloth/pull/6100
* Studio: make code comments and docstrings more succinct by @danielhanchen in https://github.com/unslothai/unsloth/pull/6029
* Reduce and tighten code comments and docstrings repo-wide by @danielhanchen in https://github.com/unslothai/unsloth/pull/6095
* Studio frontend: reduce and tighten code comments by @danielhanchen in https://github.com/unslothai/unsloth/pull/6099
* feat(studio): Hub + Download Manager by @Sneakr in https://github.com/unslothai/unsloth/pull/5916
* Studio fix recipe dataset preview by @wasimysaid in https://github.com/unslothai/unsloth/pull/6031
* Studio: make Helper LLM startup pre-cache opt in by @wasimysaid in https://github.com/unslothai/unsloth/pull/6113
* Improve local chat tool call flow by @wasimysaid in https://github.com/unslothai/unsloth/pull/5962
* [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in https://github.com/unslothai/unsloth/pull/6104
* Studio: improve OpenAI- and Anthropic-compatible API spec compliance by @oobabooga in https://github.com/unslothai/unsloth/pull/6010
* Studio: follow-up fix for GGUF developer prompts by @wasimysaid in https://github.com/unslothai/unsloth/pull/6115
* Studio: stop the providers dialog from resetting custom provider form state by @NilayYadav in https://github.com/unslothai/unsloth/pull/6051
* Studio: clean-room compact RAG (knowledge bases, hybrid search, fast indexing) by @danielhanchen in https://github.com/unslothai/unsloth/pull/5910
* feat: support text-only loading of Gemma 3 27B via FastLanguageModel (skip SiglipVisionModel) by @mvanhorn in https://github.com/unslothai/unsloth/pull/5816
* studio(ui): use the --primary brand token for the avatar fallback color by @danielhanchen in https://github.com/unslothai/unsloth/pull/5987
* fix(studio): block arbitrary external image URLs in markdown renderer by @rsd-darshan in https://github.com/unslothai/unsloth/pull/5602
* Studio: center account avatar vertically in sidebar footer pill by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6026
* fix: clearer Studio setup error when GPU driver is too old for the installed CUDA toolkit by @mvanhorn in https://github.com/unslothai/unsloth/pull/5993
* Studio: npm v12 readiness (allowScripts policy, npmrc cleanup, bun bootstrap fix) by @danielhanchen in https://github.com/unslothai/unsloth/pull/6128
* Studio: faithful conversation export and import round trips (ShareGPT system role, CSV quoted newlines) by @danielhanchen in https://github.com/unslothai/unsloth/pull/6131
* Studio: auto-sync allowScripts pins after dependency bumps by @danielhanchen in https://github.com/unslothai/unsloth/pull/6136
* Studio: unify shadows, backgrounds and dark mode consistency in chat UI by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6116
* Windows/WSL installer: fix winget msstore cert failure, amd-smi DiskPart prompt, and enable AMD GPU (Strix Halo gfx1151) by @danielhanchen in https://github.com/unslothai/unsloth/pull/5940
* Studio: bulk export and import in Settings Chat Data, MCP pill off switch by @danielhanchen in https://github.com/unslothai/unsloth/pull/6141
* Studio: fix nested dropdown submenus clipped by the menu alignment nudge by @danielhanchen in https://github.com/unslothai/unsloth/pull/6143
* Studio: declutter the chat plus menu and make RAG session-only with pre-select by @danielhanchen in https://github.com/unslothai/unsloth/pull/6140
* fix/validate dataset video paths before training by @LeoBorcherding in https://github.com/unslothai/unsloth/pull/5136
* Restore config use_cache in for_inference after gradient checkpointing prep by @danielhanchen in https://github.com/unslothai/unsloth/pull/6137
* fix: persist Windows ROCm BNB version by @Peter7896 in https://github.com/unslothai/unsloth/pull/6048
* Studio GGUF CI: fix deterministic JSON-mode failure by bumping the quant, keep hard asserts by @danielhanchen in https://github.com/unslothai/unsloth/pull/6138
* Frontend CI: hard-fail unreviewed npm install scripts (--strict-allow-scripts) by @danielhanchen in https://github.com/unslothai/unsloth/pull/6139
* Studio UI polish: search dialog shadow, model picker pills, sidebar spacing, white Hub background by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6147
* Run the HF cache redirect before import fixes that can freeze Hub constants by @danielhanchen in https://github.com/unslothai/unsloth/pull/6150
* Fix Studio MLX VLM resized image layout by @Lyxot in https://github.com/unslothai/unsloth/pull/6019
* fix(studio): reject unsupported MLX CPT and embedding training by @Lyxot in https://github.com/unslothai/unsloth/pull/6091
* fix(studio): forward custom dataset mappings in MLX training by @Lyxot in https://github.com/unslothai/unsloth/pull/6094
* Tests + CI guard: batched left-padded generation can never silently regress again (#1066, #3699) by @danielhanchen in https://github.com/unslothai/unsloth/pull/6145
* Tests: follow Compare chat into the More submenu in the Playwright chat UI driver by @danielhanchen in https://github.com/unslothai/unsloth/pull/6153
* Fix UnboundLocalError in ROCm version detection dpkg/rpm fallback by @danielhanchen in https://github.com/unslothai/unsloth/pull/6149
* Auto-set BNB_ROCM_VERSION from the installed wheel on Windows + ROCm by @danielhanchen in https://github.com/unslothai/unsloth/pull/5986
* Call patch_compiling_bitsandbytes on the FastLanguageModel path by @danielhanchen in https://github.com/unslothai/unsloth/pull/6144
* Studio: mascot images degrade gracefully instead of showing alt text by @danielhanchen in https://github.com/unslothai/unsloth/pull/6146
* Studio: training survives a non-writable HF datasets cache by @danielhanchen in https://github.com/unslothai/unsloth/pull/6148
* Studio: fix Gemma-4-12B-it not loading by @Imagineer99 in https://github.com/unslothai/unsloth/pull/6054
* Installer: never plan a non-sm_120 CUDA build on Blackwell, never plan CPU on an NVIDIA host by @danielhanchen in https://github.com/unslothai/unsloth/pull/6156
* Studio: support separate-file MTP GGUF drafters (Gemma 4) by @oobabooga in https://github.com/unslothai/unsloth/pull/6125
* Studio: accept audio files through Add photos & files and fix the audio gate for Gemma 4 models by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6064
* Source llama.cpp prebuilts from unslothai/llama.cpp (CUDA, ROCm, macOS) by @oobabooga in https://github.com/unslothai/unsloth/pull/5963
* Studio: fall back to text-only when llama.cpp is too old for a model's vision projector by @danielhanchen in https://github.com/unslothai/unsloth/pull/6075
* Chat UI polish: template editor reset, circular action button hovers by @shimmyshimmer in https://github.com/unslothai/unsloth/pull/6151
* feat(hub): enable Run/New Chat for downloaded GGUF models, fix README by @Sneakr in https://github.com/unslothai/unsloth/pull/6152
* Studio: in-app Update llama.cpp button to install the latest prebuilt by @danielhanchen in https://github.com/unslothai/unsloth/pull/6097
* Studio: gracefully disable MTP when the model has no head or drafter by @danielhanchen in https://github.com/unslothai/unsloth/pull/6159
* Studio: show the llama.cpp update banner sooner and keep it until dismissed by @danielhanchen in https://github.com/unslothai/unsloth/pull/6162
* fix(studio): round compact tooltip corners to 9px by @Sneakr in https://github.com/unslothai/unsloth/pull/6163

## New Contributors
* @Sneakr made their first contribution in https://github.com/unslothai/unsloth/pull/5916
* @rsd-darshan made their first contribution in https://github.com/unslothai/unsloth/pull/5602
* @Peter7896 made their first contribution in https://github.com/unslothai/unsloth/pull/6048

**Full Changelog**: https://github.com/unslothai/unsloth/compare/v0.1.44-beta...v0.1.45-beta