# Which ComfyUI commit made RAM-pressure caching the default cache mode, which release tag first contains it, and what do the commit message, PR description and release notes say?

- id: art_01M5MCCS3V68PVW9MDBAJYH850
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T08, T09 · tags: none
- updated: 2026-10-23T12:39:54.740Z
- url: https://veyrul.com/articles/art_01M5MCCS3V68PVW9MDBAJYH850

At the pinned data (observed 2026-10-22), the default flipped in commit 5aa5ccc9e02aec94cf43e0f71d4b2f62b204b5b6 (2026-05-21T00:03:58Z), the squash of PR #13802 'Multi-threaded load of models from disk ...' by rattus128. Its parent 4d6a058bf1dd18fb6d4594081c3f9a7575c97256 still has --cache-ram opt-in (default 0, CLASSIC in main.py). GitHub's compare API says the commit is contained in tag v0.23.0 (tag commit a88e02b18576283b1ff25a4b564548c5dc42cbf6, release published 2026-06-01T17:56:51Z) and not in v0.22.0-v0.22.3, so v0.23.0 is the first tag among the tags listed that contains it. The rationale sits in the PR description (new mmap-free loader, committed pinned memory on Windows); the release notes name only the PR title and do not mention the default change.

At the pinned data (observed 2026-10-22), the default flipped in commit 5aa5ccc9e02aec94cf43e0f71d4b2f62b204b5b6 (2026-05-21T00:03:58Z), the squash of PR #13802 'Multi-threaded load of models from disk ...' by rattus128. Its parent 4d6a058bf1dd18fb6d4594081c3f9a7575c97256 still has --cache-ram opt-in (default 0, CLASSIC in main.py). GitHub's compare API says the commit is contained in tag v0.23.0 (tag commit a88e02b18576283b1ff25a4b564548c5dc42cbf6, release published 2026-06-01T17:56:51Z) and not in v0.22.0-v0.22.3, so v0.23.0 is the first tag among the tags listed that contains it. The rationale sits in the PR description (new mmap-free loader, committed pinned memory on Windows); the release notes name only the PR title and do not mention the default change.

Curator qualifications: The default switched to RAM-pressure caching in commit 5aa5ccc9 (2026-05-21, squash of PR #13802); its parent still had --cache-ram opt-in.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/Comfy-Org/ComfyUI/pull/13802",
      "note": "ComfyUI 4d6a058b comfy/cli_args.py L119; ComfyUI 5aa5ccc9 comfy/cli_args.py L114"
    },
    {
      "url": "https://api.github.com/repos/Comfy-Org/ComfyUI/commits/5aa5ccc9e02aec94cf43e0f71d4b2f62b204b5b6",
      "note": "ComfyUI 4d6a058b comfy/cli_args.py L119; ComfyUI 5aa5ccc9 comfy/cli_args.py L114"
    },
    {
      "url": "https://raw.githubusercontent.com/Comfy-Org/ComfyUI/4d6a058bf1dd18fb6d4594081c3f9a7575c97256/comfy/cli_args.py",
      "note": "ComfyUI 4d6a058b comfy/cli_args.py L119; ComfyUI 5aa5ccc9 comfy/cli_args.py L114"
    },
    {
      "url": "https://raw.githubusercontent.com/Comfy-Org/ComfyUI/5aa5ccc9e02aec94cf43e0f71d4b2f62b204b5b6/comfy/cli_args.py",
      "note": "ComfyUI 4d6a058b comfy/cli_args.py L119; ComfyUI 5aa5ccc9 comfy/cli_args.py L114"
    },
    {
      "url": "https://api.github.com/repos/Comfy-Org/ComfyUI/releases?per_page=30",
      "note": "ComfyUI 4d6a058b comfy/cli_args.py L119; ComfyUI 5aa5ccc9 comfy/cli_args.py L114"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] At the pinned data (observed 2026-10-22), the default flipped in commit 5aa5ccc9e02aec94cf43e0f71d4b2f62b204b5b6 (2026-05-21T00:03:58Z), the squash of PR #13802 'Multi-threaded load of models from disk ...' by rattus128. Its parent 4d6a058bf1dd18fb6d4594081c3f9a7575c97256 still has --cache-ram opt-in (default 0, CLASSIC in main.py). GitHub's compare API says the commit is contained in tag v0.23.0 (tag commit a88e02b18576283b1ff25a4b564548c5dc42cbf6, release published 2026-06-01T17:56:51Z) and not in v0.22.0-v0.22.3, so v0.23.0 is the first tag among the tags listed that contains it. The rationale sits in the PR description (new mmap-free loader, committed pinned memory on Windows); the release notes name only the PR title and do not mention the default change. · locator: ComfyUI 4d6a058b comfy/cli_args.py L119; ComfyUI 5aa5ccc9 comfy/cli_args.py L114 · source: https://github.com/Comfy-Org/ComfyUI/pull/13802

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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