release
Anthropic SDK v0.101.0
May 11, 2026
v0.101.0, released 2026-05-11, adds an AWS client for Claude Platform on AWS and fixes a client error-message bug, while also updating examples to use `claude-sonnet-4-5-20250929` and switching the shebang from Poetry to uv. The main notable detail is the new AWS integration, which extends platform connectivity, alongside a small but user-facing bug fix for file type error messaging.
0.101.0 (2026-05-11) Full Changelog: v0.100.0...v0.101.0 Features aws: Add AWS client for Claude Platform on AWS ( 1e70e3a ) Bug Fixes client: add missing f-string prefix in file type error message ( 06d109a ) Chores examples: bump tools_runner.py to claude-sonnet-4-5-20250929 ( #1473 ) ( 1aa8e41 ) examples: update shebang from poetry to uv ( #1497 ) ( ace8f38 )
Source: github.com