v1.7.1

What's Changed

• fix: don't emit ToolStream events for non generator functions by @zastrowm in #773
• fix(tests): adjust test_bedrock_guardrails to account for async behavior by @dbschmigelski in #785
• fix(doc): replace invalid Hook names in doc comment with BeforeInvocationEvent & AfterInvocationEvent by @deepyes02 in #782
• fix: Remove status field from toolResult for non-claude 3 models in Bedrock model provider by @mehtarac in #686
• fix: filter 'SDK_UNKNOWN_MEMBER' from response content by @JackYPCOnline in #798
• feat: Implement async generator tools by @zastrowm in #788
• ci: update openai requirement from <1.100.0 to <1.102.0 by @dependabot[bot] in #722
• fix: only add signature to reasoning blocks if signature is provided by @zastrowm in #806

New Contributors

• @deepyes02 made their first contribution in #782

Full Changelog: v1.7.0...v1.7.1

v1.7.0

What's Changed

• feat: Implement typed events internally by @zastrowm in #745
• summarization manager - add summary prompt to messages by @pgrayy in #698
• feat: Use TypedEvent inheritance for callback behavior by @zastrowm in #755
• feat: claude citation support with BedrockModel by @theagenticguy in #631
• feat: Enable hooks for MultiAgents by @zastrowm in #760
• Add invocation_state to ToolContext by @zastrowm in #761
• Add VPC endpoint support to BedrockModel class - Add optional endpoin… by @dbavro19 in #502
• fix: fix stop reason for bedrock model when stop_reason by @JackYPCOnline in #767
• fix: Return tool result message as part of event + expand unit test coverage by @zastrowm in #771
• fix: fix loading tools with same tool name by @JackYPCOnline in #772

New Contributors

• @dbavro19 made their first contribution in #502

Full Changelog: v1.6.0...v1.7.0

v1.6.0

What's Changed

• fix: fix non-serializable parameter of agent from toolUse block by @JackYPCOnline in #568
• Add .DS_Store to .gitignore by @vawsgit in #681
• feat(a2a): support A2A FileParts and DataParts by @jer96 in #596
• ci: update pre-commit requirement from <4.2.0,>=3.2.0 to >=3.2.0,<4.4.0 by @dependabot[bot] in #706
• ci: update ruff requirement from <0.5.0,>=0.4.4 to >=0.4.4,<0.13.0 by @dependabot[bot] in #704
• ci: update pytest-asyncio requirement from <0.27.0,>=0.26.0 to >=0.26.0,<1.2.0 by @dependabot[bot] in #708
• fix: add system_prompt to structured_output_span before adding input_messages by @chengweitsai in #709
• feat(multiagent): Add call implementation to MultiAgentBase by @mkmeral in #645
• chore: Update pydantic minimum version by @mehtarac in #723
• tool executors by @pgrayy in #658
• feat: Add support for agent invoke with no input, or Message input by @Unshure in #653
• ci: bump actions/checkout from 4 to 5 by @dependabot[bot] in #711
• ci: bump actions/download-artifact from 4 to 5 by @dependabot[bot] in #712
• ci: update pytest-cov requirement from <5.0.0,>=4.1.0 to >=4.1.0,<7.0.0 by @dependabot[bot] in #705
• fix: prevent path traversal for message_id in file_session_manager by @mehtarac in #728
• fix: Add AgentInput TypeAlias by @Unshure in #738
• fix: Move AgentInput to types submodule by @Unshure in #746

New Contributors

• @vawsgit made their first contribution in #681
• @dependabot[bot] made their first contribution in #706
• @chengweitsai made their first contribution in #709

Full Changelog: v1.5.0...v1.6.0

v1.5.0

What's Changed

• feature(graph): Allow cyclic graphs by @mkmeral in #497
• chore: request to include code snippet section by @poshinchen in #654
• feat: Add configuration option to MCP Client for server init timeout by @fhwilton55 in #657
• fix: Properly handle prompt=None & avoid agent hanging by @zastrowm in #643
• feat: add structured_output_span by @poshinchen in #655
• litellm - set 1.73.1 as minimum version by @pgrayy in #668
• feat: expose tool_use and agent through ToolContext to decorated tools by @dbschmigelski in #557
• session manager - prevent file path injection by @pgrayy in #680
• fix: only set signature in message if signature was provided by the model by @clareliguori in #682
• fix: Add openai dependency to sagemaker dependency group by @zastrowm in #678
• Have [all] group reference the other optional dependency groups by name by @zastrowm in #674
• fix: append blank text content if assistant content is empty by @poshinchen in #677
• feat: add cached token metrics support for Amazon Bedrock by @oaltagar-aws in #531

New Contributors

• @fhwilton55 made their first contribution in #657
• @oaltagar-aws made their first contribution in #531

Full Changelog: v1.4.0...v1.5.0

v1.4.0

What's Changed

• fix(telemetry): added mcp tracing context propagation by @poshinchen in #569
• Change max_tokens type to int to match Anthropic API by @vinc3m1 in #588
• feat: Add additional intructions for contributors to find issues that are ready to be worked on by @mehtarac in #595
• feat(a2a): configurable request handler by @jer96 in #601
• chore(a2a): update host per AppSec recommendation by @jer96 in #619
• fix(event_loop): ensure tool_use content blocks are valid after max_tokens to prevent unrecoverable state by @dbschmigelski in #607
• fix(structured_output): do not modify conversation_history when prompt is passed by @dbschmigelski in #628

New Contributors

• @vinc3m1 made their first contribution in #588

Full Changelog: v1.3.0...v1.4.0

v1.3.0

What's Changed

• fix(deps): pin a2a-sdk>=0.2.16 to resolve #572 by @minorun365 in #581
• chore: pin a2a to a minor version while it is still in beta by @dbschmigelski in #586
• fix: sessions code fence, a2a tests & lint by @theagenticguy in #591
• fix(event_loop): raise dedicated exception when encountering max toke… by @dbschmigelski in #576

New Contributors

• @minorun365 made their first contribution in #581

Full Changelog: v1.2.0...v1.3.0

v1.2.0

What's Changed

• Support for Amazon SageMaker AI endpoints as Model Provider by @dgallitelli in #176
• fix: Remove leftover print statement from sagemaker model provider by @mehtarac in #553
• [Feat] Update structured output error message by @Unshure in #563
• feat(mcp): retain structured content in the AgentTool response by @dbschmigelski in #528
• feat(mcp): Add list_prompts, get_prompt methods by @Ketansuhaas in #160

New Contributors

• @dgallitelli made their first contribution in #176
• @mehtarac made their first contribution in #553
• @Ketansuhaas made their first contribution in #160

Full Changelog: v1.1.0...v1.2.0

v1.1.0

What's Changed

• Update to use dedicated github logo by @zastrowm in #505
• deps(a2a): address interface changes and bump min version by @jer96 in #515
• ci: expose STRANDS_TEST_API_KEYS_SECRET_NAME to integration tests by @dbschmigelski in #513
• Don't re-run workflows on un/approvals by @zastrowm in #516
• Doc fixes: suppressing some typos in various texts by @didier-durand in #487
• docs: add hot reloading documentation for load_tools_from_directory by @cagataycali in #517
• ci: enable integ tests for anthropic, cohere, mistral, openai, writer by @dbschmigelski in #510
• Automatically flatten nested tool collections by @zastrowm in #508
• feat(a2a): support mounts for containerized deployments by @jer96 in #524
• fix: include agent trace into tool for agent as tools by @poshinchen in #526

Full Changelog: v1.0.1...v1.1.0

v1.0.1

What's Changed

• Switch readme to use light logo for better display in github dark mode by @zastrowm in #475
• build(pyproject): update development status classifier by @awsarron in #480
• fix: enable parallel execution in graph workflow by @ahmetatalay in #485
• docs: Update README.md with Writer by @samjulien in #474
• fix(agent): prevent JSON serialization errors with non-serializable direct tool parameters by @cagataycali in #498
• fix(telemetry): group traces when using agent as tool in an agent by @poshinchen in #493

New Contributors

• @ahmetatalay made their first contribution in #485
• @samjulien made their first contribution in #474

Full Changelog: v1.0.0...v1.0.1

v1.0.0

What's Changed

• refactor(a2a): configurable host and port and remove excessive logging by @jer96 in #423
• models - bedrock - remove signaling by @pgrayy in #429
• feat(multiagent): Graph - support multi-modal inputs by @awsarron in #430
• deps(a2a): upper bound a2a sdk dep by @jer96 in #432
• models - ollama - init async client per request by @pgrayy in #433
• models - mistral - init client on every request by @pgrayy in #434
• models - ollama - clean up in tests by @pgrayy in #435
• feat!: add pagination to mcp_client list_tools_sync by @dbschmigelski in #436
• Session persistence by @Unshure in #302
• chore: update span names by @poshinchen in #440
• models - openai - null usage by @pgrayy in #442
• feat: redact content from a message in a session by @Unshure in #446
• refactor(a2a): upper bound deps + remove from multiagent submodule by @jer96 in #447
• Expand additional $refs for structured_output by @zastrowm in #439
• fix: session manager tracks all agent last message by @Unshure in #455
• feat: added swarm and graph spans by @poshinchen in #451
• docstrings - fix formatting by @pgrayy in #456
• refactor: add kwargs to multiagent interfaces by @mkmeral in #454
• fix: Fix session manager agent init by @Unshure in #458
• feat: Store conversation manager in session by @Unshure in #441
• feat(multiagent): introduce Swarm multi-agent orchestrator by @awsarron in #416
• multiagent - use invoke_async instead of stream_async by @pgrayy in #463
• feat: add Swarm tracing by @poshinchen in #461
• feat(telemetry): Expose OpenTelemetry exporter init arguments in API by @mrtj in #365
• docs: correct naming in registry.py by @akshseh in #425
• fix: Plumb system_prompt through to structured_output by @zastrowm in #466
• Update default model to be Claude 4 Sonnet by @zastrowm in #467
• feat: Add kwargs to session interfaces for future extensibility by @Unshure in #464
• fix: Fix various docstring issues by @Unshure in #469
• fix(multiagent): raise ValueError for unsupported Graph and Swarm agent features by @awsarron in #472
• refactor(multiagent): Swarm - Remove unnecessary complete_swarm_task tool by @awsarron in #473
• chore: remove preview from README.md by @yonib05 in #459

New Contributors

• @mrtj made their first contribution in #365
• @akshseh made their first contribution in #425

Full Changelog: v0.3.0...v1.0.0