Anthropic SDK (Python) releases
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Anthropic SDK (Python) releases dev-tools 5d ago
v1.8.0
1.8.0 (2026-09-22) Full Changelog: v1.7.0...v1.8.0 Features api: add support for claude-opus-5-5, inline tool definitions and MCP tool-list pinning (beta) ( b5cc700 ) Bug Fixes api: share one evaluated_permission enum across Managed Agents events ( f4f51c8 ) streaming: avoid a…
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v1.7.0
1.7.0 (2026-09-18) Full Changelog: v1.6.0...v1.7.0 Features api: add group with display_name to rate limits, deprecate group_type ( 28f0a83 ) tools: add compact_before_next_turn() to the tool runner ( #641 ) ( 8b23fb3 ) Bug Fixes bedrock: raise an API error for eventstream…
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v1.6.0
1.6.0 (2026-09-15) Full Changelog: v1.5.0...v1.6.0 Features api: add auto mode tool permissions for Managed Agents ( 909d92f ) api: add compaction parameter and signed compaction blocks (beta) ( 8689179 ) api: add enum types for workspace data-residency geo fields ( 3dc6dbf )…
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v1.5.0
1.5.0 (2026-09-10) Full Changelog: v1.4.0...v1.5.0 Features api: add auto mode tool permissions for Managed Agents ( 62aa21b ) api: add content_too_large web_fetch tool error code ( 4b5dec6 ) api: add the user-profiles-2026-09-04 beta value and external_user_details to user…
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v1.4.0
1.4.0 (2026-09-04) Full Changelog: v1.3.0...v1.4.0 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 (…
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v1.3.0
1.3.0 (2026-09-01) Full Changelog: v1.2.0...v1.3.0 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…
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v1.2.0
1.2.0 (2026-08-27) Full Changelog: v1.1.0...v1.2.0 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…
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v1.1.0
1.1.0 (2026-08-26) Full Changelog: v1.0.0...v1.1.0 Features api: add updates thinking display mode (beta) ( eb4a73f ) api: add missing anthropic-beta values ( dbebd15 ) api: add support for Organization API endpoints ( 5a5b8fc ) Bug Fixes docs: correct link for long requests…
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v1.0.0
1.0.0 (2026-08-20) Full Changelog: v0.125.0...v1.0.0 ⚠ 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…
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v0.125.0
0.125.0 (2026-08-19) Full Changelog: v0.124.0...v0.125.0 Features api: managed agents web search config and self hosted sandbox memory ( b75afd6 )
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v0.124.0
0.124.0 (2026-08-19) Full Changelog: v0.123.0...v0.124.0 Features api: Files and Skills APIs are now GA; add computer use and browser use toolsets ( 9a09e84 )
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v0.123.0
0.123.0 (2026-08-18) Full Changelog: v0.122.0...v0.123.0 Features api: additions to files and memory stores ( 09ce187 ) api: updates to skill, files, and user profiles ( c6cbffd ) client: add helpers for accessing the workspace ID in response headers ( f79882b ) Bug Fixes api:…
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v0.122.0
0.122.0 (2026-08-13) Full Changelog: v0.121.0...v0.122.0 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…
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v0.121.0
0.121.0 (2026-08-07) Full Changelog: v0.120.2...v0.121.0 Features api: add mid-conversation-tool-changes-2026-07-01 beta ( c7d1531 ) api: add support for session budgets, advisor tool, pinned inference location and skills auto-loading from GitHub ( 193bae0 ) Chores api: remove…
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v0.120.2
0.120.2 (2026-07-28) Full Changelog: v0.120.1...v0.120.2 Bug Fixes mcp: support mcp sdk v2 alongside v1 ( #300 ) ( 177f88c )
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v0.120.1
0.120.1 (2026-07-28) Full Changelog: v0.120.0...v0.120.1 Bug Fixes mcp: pin mcp extra to <2 ( #1783 ) ( fb66371 )
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v0.120.0
0.120.0 (2026-07-24) Full Changelog: v0.119.0...v0.120.0 Features api: add claude-opus-5 model ( bf4e31c ) api: add tool addition/removal blocks and tool_change events ( bf4e31c ) api: expand client-side fallback credit token types and add server-side fallbacks default option (…
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v0.118.0
0.118.0 (2026-07-22) Full Changelog: v0.117.1...v0.118.0 Features api: add support for Managed Agents model effort, initial session events, and threads delta streaming ( 712bc6f )
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v0.117.1
0.117.1 (2026-07-21) Full Changelog: v0.117.0...v0.117.1 Bug Fixes aws: handle credentials correctly when using AnthropicAWS.copy() ( 85d3881 ) Chores api: add support for new refusal category ( d1dea0b ) client: docs updates ( b14f94c ) deps: bump http-snapshot to 0.1.9 ( #275…
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v0.117.0
0.117.0 (2026-07-16) Full Changelog: v0.116.0...v0.117.0 Features api: add support for dreaming ( 642eee7 ) api: add support for MCP Tunnels ( d716df6 ) Bug Fixes credentials: keep credential material out of traceback frame locals via SecretStr ( aa93a4d ) Chores docs: small…
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v0.116.0
0.116.0 (2026-07-02) Full Changelog: v0.115.1...v0.116.0 Features api: add agent-memory-2026-07-22 beta header ( e181d5c )
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v0.115.1
0.115.1 (2026-07-01) Full Changelog: v0.115.0...v0.115.1 Chores api: remove some nonfunctional types from the SDKs ( 5e7c431 )
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v0.115.0
0.115.0 (2026-06-30) Full Changelog: v0.114.0...v0.115.0 Features api: add support for Managed Agents event delta streaming, agent overrides, reverse pagination, vault credential injection scoping, and agent and deployment webhook events ( 8c23f7e )
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v0.113.0
0.113.0 (2026-06-29) Full Changelog: v0.112.0...v0.113.0 Features api: add support for 20260318 web fetch and support tools ( 88dbfb1 ) Bug Fixes async count_tokens missing output_format/output_config merge block ( #162 ) ( 122c958 ) Chores api: accept user profile ID's when…
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v0.112.0
0.112.0 (2026-06-24) Full Changelog: v0.111.0...v0.112.0 Features client: add support for system.message streaming events ( 2450d59 ) Bug Fixes memory tool: create parent directories with the correct permissions ( #135 ) ( f2fc2a9 ) Chores api: add support for new refusal…
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v0.111.0
0.111.0 (2026-06-18) Full Changelog: v0.110.0...v0.111.0 Features helpers: tag refusal-fallback middleware requests with fallback-refusal-middleware ( #96 ) ( 2f8ac78 )
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v0.110.0
0.110.0 (2026-06-18) Full Changelog: v0.109.2...v0.110.0 Features api: add support for new code_execution_20260120 tool ( 5e23212 ) Bug Fixes append x-stainless-helper across header merges instead of clobbering ( #105 ) ( 922558e ) bedrock: preserve stream event type ( #1682 ) (…
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v0.109.2
0.109.2 (2026-06-15) Full Changelog: v0.109.1...v0.109.2 Chores api: remove retired models from API and SDKs ( d4bcfcc )
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v0.109.1
0.109.1 (2026-06-09) Full Changelog: v0.109.0...v0.109.1 Bug Fixes api: add frontier_llm refusal category ( d3a806b )
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v0.109.0
0.109.0 (2026-06-09) Full Changelog: v0.108.0...v0.109.0 Features api: add support for Managed Agents deployments and environment variable credentials ( 47633bf )
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v0.108.0
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…
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v0.107.1
0.107.1 (2026-06-07) Full Changelog: v0.107.0...v0.107.1 Bug Fixes foundry: send x-api-key header for API-key auth ( #62 ) ( 1338141 ), closes #1661
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v0.107.0
0.107.0 (2026-06-06) Full Changelog: v0.106.0...v0.107.0 Features api: small updates to Managed Agents types ( 72923f9 )
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v0.106.0
0.106.0 (2026-06-05) Full Changelog: v0.105.2...v0.106.0 Features api: mark Claude Opus 4.1 as deprecated ( 85068cc ) Bug Fixes client: make Foundry client copy() and with_options() work ( 94146ac ) transform schema: preserve $defs when schema root is a $ref ( #1642 ) ( fc58e06…
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v0.105.2
0.105.2 (2026-05-29) Full Changelog: v0.105.1...v0.105.2
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v0.105.1
0.105.1 (2026-05-29) Full Changelog: v0.105.0...v0.105.1 Chores internal: use Trusted Publishing for PyPI releases ( 1d04fc5 )
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v0.105.0
0.105.0 (2026-05-28) Full Changelog: v0.104.1...v0.105.0 Features api: Add support for claude-opus-4-8, mid-conversation system blocks, and usage.output_tokens_details ( f18b014 ) support custom file size caps ( #1825 ) ( 7e5f944 ) Chores examples: rename managed-agents…
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v0.104.1
0.104.1 (2026-05-21) Full Changelog: v0.104.0...v0.104.1 Bug Fixes streaming: carry encrypted_content through beta compaction accumulator ( #1821 ) ( f7a720c )
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v0.104.0
0.104.0 (2026-05-21) Full Changelog: v0.103.1...v0.104.0 Features api: Add support for thinking-token-count beta for estimated tokens in thinking block deltas when streaming ( 80d0fdf )
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v0.103.1
0.103.1 (2026-05-19) Full Changelog: v0.103.0...v0.103.1 Bug Fixes runner: skip tool calls SessionToolRunner does not own ( #1817 ) ( 9425c6a )
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v0.103.0
0.103.0 (2026-05-19) Full Changelog: v0.102.0...v0.103.0 Features client: Add support for self-hosted sandboxes in CMA with sandbox helpers ( e5625b0 )
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v0.102.0
0.102.0 (2026-05-13) Full Changelog: v0.101.0...v0.102.0 Features api: Add BetaManagedAgentsSearchResultBlock types ( 3681f10 ) api: Add support for cache diagnostics beta ( db51c6c ) internal/types: support eagerly validating pydantic iterators ( 68dabb0 ) Chores api: spec…
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v0.101.0
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 (…
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v0.99.0
0.99.0 (2026-05-05) Full Changelog: v0.98.1...v0.99.0 Features client: allow targeting a workspace for OIDC federation token exchange ( 4ba8067 )
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v0.98.1
0.98.1 (2026-05-04) Full Changelog: v0.98.0...v0.98.1 Chores fix typo in example ( #1754 ) ( de8ba13 )
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v0.98.0
0.98.0 (2026-05-04) Full Changelog: v0.97.0...v0.98.0 Features api: improve Managed Agents APIs ( 7faf393 ) client: add Workload Identity Federation, interactive OAuth, and auth profiles ( 6458bcc ) support setting headers via env ( 52eb8cd ) Bug Fixes streaming: propagate…
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v0.97.0
0.97.0 (2026-04-23) Full Changelog: v0.96.0...v0.97.0 Features api: CMA Memory public beta ( fc30ebe ) Bug Fixes api: fix errors in api spec ( f946de8 ) api: restore missing features ( 72212ab ) Performance Improvements client: optimize file structure copying in multipart…
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