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Ollama Preview Build

Download the latest notarized macOS preview for Gemma 4, Apertus 1.5 Omni, GPT-OSS, and MLX media work, or build the source preview locally.

These preview builds target Apple Silicon Macs and exercise MLX-backed model runners before the changes are part of a regular Ollama release.

MLX preview updates are optional: the app can download signed previews, and you choose when to restart and install. Switching to official Ollama is a separate manual choice.

Ollama 0.40.12 MLX preview

Published October 28, 2026 · signed and notarized macOS DMG
Latest
File
Ollama-0.40.12-41-g8162aee-mlx-preview-v0.40.12.dmg
Size
166.1 MB (174,139,889 bytes)
SHA-256
544e367a5035be88d93f24df22fd7272e671d2ea0eaa2b5bec3c1b6a48d1faad
Upstream
Ollama v0.40.12 @ f067033f9126
Integration
3 commits · patch-set 4d9151775e: official-base merge, attachment selection, and chat-history compatibility
Highlights
Official Ollama v0.40.12Includes upstream LFM3 and d1 updates, Phonon speech generation, Gemma image/audio improvements, and updated MLX/llama.cpp runtimes. Model-aware attachmentsImage/audio selection, drop and paste follow the selected model's capabilities. Incompatible media in earlier chat messages is identified before sending. Markdown and other documents remain text. Included MLX preview capabilitiesGPT-OSS, Apertus 1.0 and Mini runtimes; Gemma 4 and Apertus 1.5 image/audio APIs; Responses namespace and custom apply_patch tools; desktop thinking controls, model information, preview updates and startup preferences.
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Ollama 0.40.7 MLX preview

Published October 22, 2026 · signed and notarized macOS DMG
Previous
File
Ollama-0.40.7-37-g9493740-mlx-preview-v0.40.7.dmg
Size
209.6 MB (219,744,906 bytes)
SHA-256
8fe1d99758f868ea0e26f2c640f484aecce847e73e4699876e87178de955ac51
Upstream
Ollama v0.40.7 @ 2cd63f7a1503
Highlights
Official Ollama v0.40.7Updated from v0.40.5 with improved Responses conversation continuation and streamed reasoning/tool ordering, plus upstream reliability fixes. Refreshed preview integrationsAll fifteen accepted feature streams are rebuilt on the official base, including the corrections from recent lightweight refreshes. Existing published model artifacts are retained. Included MLX preview capabilitiesGPT-OSS, Apertus 1.0 and Apertus 1.1 Mini runtimes; Gemma 4 and Apertus 1.5 image/audio APIs; Responses namespace and custom apply_patch tools; desktop audio, thinking controls, model information and substring search.
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Ollama 0.40.5 MLX preview

Published October 16, 2026 · signed and notarized macOS DMG
Previous
File
Ollama-0.40.5-54-gdc995cc-mlx-preview-v0.40.5.dmg
Size
219.4 MB (219,414,221 bytes)
SHA-256
7ab91fafd6901dd12d478593a769e1b341b35253d9ca100e1cf13a8ab99124ad
Upstream
Ollama v0.40.5 @ d919272e5359
Highlights
Official Ollama v0.40.5Light refresh from v0.40.2 with the accepted MLX model and API integrations preserved. Existing model artifacts are unchanged. Desktop and API updatesIncludes the Apertus 1.5 image-memory correction, one persisted Command-Q setting, desktop thinking controls, and model-capability discovery. Reconciles upstream custom-tool history with the Responses apply_patch bridge. Included MLX preview capabilitiesGPT-OSS, Apertus 1.0 text and Apertus 1.1 Mini runtimes
Gemma 4 and Apertus 1.5 image/audio APIs, Responses namespace tools, custom apply_patch transport, and desktop audio attachments.
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Ollama 0.40.2 MLX preview

Published October 9, 2026 · signed and notarized macOS DMG
Previous
File
Ollama-0.40.2-40-gdb2f93e-mlx-preview-v0.40.2.dmg
Size
202.5 MB
SHA-256
1bc3a91853ba2e9d54f1dd1ee3948d778f2d756ceeb24139cf128f369162f49f
Upstream
Ollama v0.40.2 @ b061384d90ff
Highlights
Official Ollama v0.40.2New since v0.40.1 preview: model listings select the preferred migrated model and hide downgrade guard tags, avoiding duplicate entries. Also includes Claude launch context and autocompaction fixes. Desktop options in this buildThe app remembers Chat or Apps as your home and whether the sidebar was open. Command-Q can hide the window while Ollama stays in the menu bar. It also includes a dedicated MLX-preview update check; switching to official Ollama remains a separate manual choice. Included MLX preview capabilitiesNative GPT-OSS runtime with validated thinking and tool calling; Apertus 1.0 text and Apertus 1.1 Mini runtimes (see the model caveats)
Gemma 4 and Apertus 1.5 Omni image/audio with MP3, WebP, cancellation, and bounded media processing
Responses namespace tools, custom apply_patch compatibility, sparse tokenizer allocation, and desktop audio attachments.
Build-specific issues
This older build predates the Apertus 1.5 image-memory fix and the duplicate Command-Q settings fix.
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Ollama 0.40.1 MLX preview

Published October 9, 2026 · signed and notarized macOS DMG
Previous
File
Ollama-0.40.1-37-g3e04ee2-mlx-preview-v0.40.1.dmg
Size
202.5 MB
SHA-256
8c87286fba055421055d57100eda423ef73771c8f32069b16140ad245f735c49
Upstream
Ollama v0.40.1 @ cf2a313a2980
Highlights
v0.40.1 base with desktop preferences, GPT-OSS, Apertus, Gemma 4 media, and Responses tools. Official Ollama v0.40.1New since v0.34.4 preview: multimodal embeddings, updated MLX dependencies, lower model-lookup overhead, and fixes for GPU-idle latency. Desktop options in this buildThe app remembers Chat or Apps as your home and whether the sidebar was open. Command-Q can hide the window while Ollama stays in the menu bar. It also includes a dedicated MLX-preview update check; switching to official Ollama remains a separate manual choice. Included MLX preview capabilitiesNative GPT-OSS runtime with validated thinking and tool calling; Apertus 1.0 text and Apertus 1.1 Mini runtimes (see the model caveats)
Gemma 4 and Apertus 1.5 Omni image/audio with MP3, WebP, cancellation, and bounded media processing
Responses namespace tools, custom apply_patch compatibility, sparse tokenizer allocation, and desktop audio attachments.
Download DMG

Older Preview Builds

Archived preview releases since May 1, 2026, starting with Ollama 0.22.1
Open Archive

To verify a download, run shasum -a 256 <downloaded-file.dmg> and compare it with the SHA-256 value shown above.

AI assistance disclosure: this page's release notes and explanatory copy were edited with AI assistance and reviewed before publication.