Anthropic's SDK Hits 1.0: The Knobs That Moved Server-Side

Anthropic's Python SDK crossed its first major version boundary on August 20, dropping fifteen breaking changes including the removal of temperature, top_p, and top_k from the Messages method signatures. The removals aren't just cleanup — newer Claude models already reject non-default sampling values with HTTP 400, and context compaction has moved server-side. The SDK is catching up to what the API already enforces.

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