Catalog / Anthropic Python SDK

Anthropic Python SDK breaking changes

The 5 releases whose own notes call out a breaking change, out of 74 the archive holds. Scattered one per release page, this is a run nobody can see; gathered, it is the shape of how often Anthropic Python SDK asks you to change your code.

Tagged breaking
5 of 74 releases
Roughly
1 in 15 releases held here
Most recent
4 Sep 2026 1 month ago
Across
22 days back to 13 Aug 2026

How this is decided

A release appears here because the word breaking is in the notes its publisher wrote, not because anyone here read the diff. That cuts both ways. A release that changed an API without using the word is missing from this page, and a release that used the word about something minor is on it. It is the publisher’s own signal, reported rather than judged, which is the same rule the security page follows.

1.4.0breakingaddedfixed

Features api: add Claude Tag category and user breakdowns to usage reports (9fce1e4) api: add named types for organization compliance settings state (1de1957) api: add support for sending a workspace ID on more endpoints (d1d2c01) Bug Fixes

1.3.0breakingaddedfixed

Features api: beta user profiles: add external_user_onboarded_at, remove relationship in favor of access_type (74080c3) api: manual updates (1dc3ce0) api: organization compliance settings, user-profile order_by, memory-store and toolset sch

1.2.0breakingaddedfixed

Features api: beta files/skills namespaces use GA shapes; drop dated beta header pins (9df4565) Bug Fixes aws,bedrock: sign raw request bytes so binary file uploads work (#531) (f50e910) ci: resolve assignment aliases in detect-breaking-cha

1.0.0breakingfixed

⚠ BREAKING CHANGES client: upgrade to httpx2 and some minor breaking changes. See MIGRATION.md for details Features client: upgrade to httpx2 and some minor breaking changes. See MIGRATION.md for details (33e2967) Bug Fixes beta: stop warni

0.122.0breakingaddedfixed

Features api: add output_behavior to dream creation (create a new memory store or update the input store in place) (852c4bb) Bug Fixes bedrock,aws: run SigV4 signing off the event loop in async clients (#334) (2bae6c8) bedrock: expose beta.