Anthropic SDK (Python) releases · June 9, 2026 · 1 min read

v0.108.0

#version-bump #developer-tool

Mirrored from Anthropic SDK (Python) releases for archival readability. Support the source by reading on the original site.

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0.108.0 (2026-06-09)

Full Changelog: v0.107.1...v0.108.0

Features

api: add support for claude-mythos-5 and claude-fable-5, with support for server-side fallbacks on refusal (6b76649)
client: adds client-side fallbacks middleware for API providers that do not support server-side fallbacks (6b76649)

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