1.18.0

PyPI

OpenAI Agents Changes

• Support and new lower bound of version 0.3.0 for openai-agents
• Workflow failure exceptions will now correctly fail the workflow from inside the Runner
• Expanded MCP support

Breaking Changes

• The encode_failure method on PayloadConverter is no longer called in all cases it once was, using encode_payload instead. This only affects custom PayloadConverter implementations which overload encode_failure to work differently from encode_payload
• The advanced WorkerTuner.create_composite has a new required field: nexus_supplier
• Only enable native roots if CA override not specified - see temporalio/sdk-core#1007 in sdk-core

Specific Changes

2025-09-02 - 3f7bd33 - Fix build binaries (#1074)
2025-09-03 - 42135f0 - Delete unused helper (#710)
2025-09-03 - 70e5bea - Fix nexus cancellation wait completed test (#1073)
2025-09-03 - a004faa - Python support for activity reset (#1065)
2025-09-03 - a3c5370 - Bump tracing-subscriber from 0.3.19 to 0.3.20 in /temporalio/bridge (#1068)
2025-09-03 - a46a742 - Fix code sample alignment & trim trailing whitespace (#1038)
2025-09-03 - bef76a6 - Even more convenient proto generation (#1039)
2025-09-03 - c643e8a - Tweak .result() doc (#706)
2025-09-03 - c8b0b78 - Reraise workflow failure errors from OpenAI's UserError (#1060)
2025-09-04 - 44412ae - Expose Last Completion Result and Previous Run Failure (#1067)
2025-09-04 - 5e9b2ba - Minor edits and code cleanup (#609)
2025-09-04 - 7be26da - Add a test for output type coercion (#1076)
2025-09-04 - c3426ce - Fix return type of workflow.wait (#650)
2025-09-04 - e92f391 - Add Summary to LocalActivityConfig and apis (#1061)
2025-09-08 - 9372d47 - Fix openai plugin bug (#1083)
2025-09-09 - 30a6b8d - Only set payload converter, fail if already set (#1086)
2025-09-09 - 44f0c42 - Added retry policy to activity info (#1055)
2025-09-10 - 101d89d - Don't set error status on otel spans for benign exceptions (#1085)
2025-09-10 - 634c5ec - 💥 Add generic payload visitor for WorkflowActivation[Completion] (#1075)
2025-09-10 - 706c89b - Changes to adapt to openai version 0.2.11 (#1092)
2025-09-11 - e782160 - uv.lock (#1096)
2025-09-12 - 9d70d44 - Add support for gRPC binary metadata values (#1070)
2025-09-12 - ce8dc4a - Remove validatoriterator workarounds (#1046)
2025-09-13 - 84b184f - Nexus worker concurrency control (#1066)
2025-09-16 - 2a2b83b - Update protobuf (#1082)
2025-09-18 - 0e1fa4f - Make env config TLS disabled field optional (#1105)
2025-09-19 - 7605619 - Rename mcp_servers to mcp_server_providers (#1110)
2025-09-19 - 8c4e2c8 - MCP server support (#1021)