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CATCH #850 DETECTED AUG 19, 2026 22:12 UTC
THE CATCHscore 10/10
EXHIBIT 850 · FLASH
Aug 19, 2026 22:12 UTC pypi anthropic
anthropic 0.125.0 shipped: 136 interesting new strings (136 sentence, 2 model_id, 2 feature_flag)
EVIDENCE — the receipts
anthropic 0.124.0 -> 0.125.0: +297 strings, -423 strings, 136 interesting

[model_id] (2)
  + py
    client = Anthropic(middleware=[BetaRefusalFallbackMiddleware([{"model": "claude-opus-4-8"}])])

    state = BetaFallbackState()
    with state:
        message = client.beta.messages.create(**params)
  + python
with client.messages.stream(
    model="claude-haiku-4-5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}],
) as stream:
    for text in stream.text_stream:
        print(text, end="", flush=True)

[feature_flag] (2)
  + py
    client = Anthropic(middleware=[BetaRefusalFallbackMiddleware([{"model": "claude-opus-4-8"}])])

    state = BetaFallbackState()
    with state:
        message = client.beta.messages.create(**params)
  + py
    with client.beta.messages.stream(...) as stream:
        for chunk in stream:
            ...

[sentence] (136)
  + py
    client = Anthropic(middleware=[BetaRefusalFallbackMiddleware([{"model": "claude-opus-4-8"}])])

    state = BetaFallbackState()
    with state:
        message = client.beta.messages.create(**params)
  + python
with client.messages.stream(
    model="claude-haiku-4-5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}],
) as stream:
    for text in stream.text_stream:
        print(text, end="", flush=True)
  + py
    with client.beta.messages.stream(...) as stream:
        for chunk in stream:
            ...
  + %s; leaving the memory store folder as found and not syncing root=%s memory_store_id=%s
  + %s; leaving the memory store folder on disk root=%s memory_store_id=%s
  + %s; not uploading anything from the memory store folder root=%s memory_store_id=%s
  + %s; re-downloading the memory store folder instead of syncing root=%s memory_store_id=%s
  + .get_final_text() can only be called when the API returns a `text` content block.
The API returned {','.join([b.type for b in message.content])} content block type(s) that you can access by calling get_final_me

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