§ anthropic-sdk · storyline

Anthropic SDK (Python) v0.90.0

Anthropic releases Python SDK v0.90.0 with support for the claude-mythos-preview model and a fix for hardcoded query parameter preservation during merging.

Apr 7 · 20:01:22 · primary fetch1 sourceupdated Apr 7 · 20:01:22

0.90.0 (2026-04-07) Full Changelog: v0.89.0...v0.90.0 Features api: Add support for claude-mythos-preview (fc7ddd8) Bug Fixes client: preserve hardcoded query params when merging with user params (32d35e0)

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§ sources1 publication · timeline below

github.comanthropic-sdk-python v0.90.0primary20:01:22