What's Changed

• Add FailureDetails.is_caused_by() and fully-qualified error types by andystaples in #194
• Performance [P2]: Reduce orchestration history replay allocations by Bernd Verst (@berndverst) in #204
• Performance [P2]: Defer synchronous Azure token acquisition by Bernd Verst (@berndverst) in #199
• Performance [P1]: Single-flight async Azure token refresh by Bernd Verst (@berndverst) in #198
• Performance [P2]: Reuse sandbox registration transport on retries by Bernd Verst (@berndverst) in #206
• history_export: resolve activity dependencies per invocation (retire process-global bind_context) by andystaples in #210
• Performance [P1]: Bound async worker task creation by Bernd Verst (@berndverst) in #200
• Performance [P3]: Cache Azure managed SDK version lookup by Bernd Verst (@berndverst) in #203
• Performance [P3]: Index sandbox activity overlap validation by Bernd Verst (@berndverst) in #205
• Performance [P3]: Lazily load sandbox runtime API exports by Bernd Verst (@berndverst) in #208
• Performance [P2]: Make entity method signature caching effective by Bernd Verst (@berndverst) in #202
• Performance [P2]: Cache type-discovery signature structure by Bernd Verst (@berndverst) in #207
• Add sync and async client parity by andystaples in #213
• Performance [P3]: Serialize history events in one pass by Bernd Verst (@berndverst) in #201
• Defer async client channel creation until first use by andystaples in #226
• Add orchestration send_event support by andystaples in #225

Full Changelog: v1.8.0...v1.9.0

What's Changed

• Add FailureDetails.is_caused_by() and fully-qualified error types by andystaples in #194
• Performance [P2]: Reduce orchestration history replay allocations by Bernd Verst (@berndverst) in #204
• Performance [P2]: Defer synchronous Azure token acquisition by Bernd Verst (@berndverst) in #199
• Performance [P1]: Single-flight async Azure token refresh by Bernd Verst (@berndverst) in #198
• Performance [P2]: Reuse sandbox registration transport on retries by Bernd Verst (@berndverst) in #206
• history_export: resolve activity dependencies per invocation (retire process-global bind_context) by andystaples in #210
• Performance [P1]: Bound async worker task creation by Bernd Verst (@berndverst) in #200
• Performance [P3]: Cache Azure managed SDK version lookup by Bernd Verst (@berndverst) in #203
• Performance [P3]: Index sandbox activity overlap validation by Bernd Verst (@berndverst) in #205
• Performance [P2]: Avoid eager worker imports from Azure managed package by Bernd Verst (@berndverst) in #209
• Performance [P3]: Lazily load sandbox runtime API exports by Bernd Verst (@berndverst) in #208
• Performance [P2]: Make entity method signature caching effective by Bernd Verst (@berndverst) in #202
• Performance [P2]: Cache type-discovery signature structure by Bernd Verst (@berndverst) in #207
• Add sync and async client parity by andystaples in #213
• Performance [P3]: Serialize history events in one pass by Bernd Verst (@berndverst) in #201
• Defer async client channel creation until first use by andystaples in #226
• Add orchestration send_event support by andystaples in #225

Full Changelog: azuremanaged-v1.8.0...azuremanged-v1.9.0

What's Changed

• Performance [P2]: Reduce orchestration history replay allocations by Bernd Verst (@berndverst) in #204
• Performance [P2]: Reuse sandbox registration transport on retries by Bernd Verst (@berndverst) in #206
• history_export: resolve activity dependencies per invocation (retire process-global bind_context) by andystaples in #210
• Performance [P1]: Bound async worker task creation by Bernd Verst (@berndverst) in #200
• Performance [P3]: Index sandbox activity overlap validation by Bernd Verst (@berndverst) in #205
• Performance [P2]: Avoid eager worker imports from Azure managed package by Bernd Verst (@berndverst) in #209
• Performance [P3]: Lazily load sandbox runtime API exports by Bernd Verst (@berndverst) in #208
• Performance [P2]: Make entity method signature caching effective by Bernd Verst (@berndverst) in #202
• Performance [P2]: Cache type-discovery signature structure by Bernd Verst (@berndverst) in #207
• Add sync and async client parity by andystaples in #213
• Performance [P3]: Serialize history events in one pass by Bernd Verst (@berndverst) in #201
• Reuse Azure Functions durable workers by andystaples in #217
• Add Azure Functions Durable V2 samples and migration guide by andystaples in #219
• Harden Durable HTTP trust boundaries by andystaples in #221
• Add regression test for retry task ID reuse by andystaples in #227
• Defer async client channel creation until first use by andystaples in #226
• Add propagate-only distributed tracing for Durable Functions by andystaples in #220
• Add orchestration send_event support by andystaples in #225
• Add durable entity unit testing support by andystaples in #218
• Standardize executable empty blocks on pass by andystaples in #235
• Preserve payloads in v1 status query shims by andystaples in #236
• Use canonical management URLs for HTTP payloads by andystaples in #237
• Restore check-status response parity by andystaples in #247
• Mark azure-functions-durable as typed by andystaples in #246
• Implement v1 show_history status compatibility by andystaples in #245

Full Changelog: azurefunctions-v2.0.0b1...azurefunctions-v2.0.0b2

Azure Functions Durable 2.0.0b1

The first preview of azure-functions-durable 2.x is a ground-up rewrite built on the durabletask Python SDK and the Durable Task gRPC runtime. APIs may change before the stable 2.0.0 release.

Highlights

• Adds durabletask-native orchestration, entity, and activity authoring, including class-based entities.
• Adds orchestration rewind, scheduled tasks, bounded history export, and durable HTTP calls with Managed Identity support.
• Provides a compatibility layer for common v1 function shapes and client/context APIs to ease migration.

Breaking changes

• Python 3.13 or later is required.
• The classic function.json programming model and OpenAI Agents integration are no longer supported.
• New applications should use durabletask-native client and context API names; v1 aliases remain available but are deprecated.
• The Preview extension bundles are required until bundles >4.37.1 is available.

Full changelog

See azure-functions-durable/CHANGELOG.md for complete migration guidance, API details, deprecations, and known limitations.

What's Changed

• Add rewind support by andystaples in #121
• Fix durabletask issues surfaced during Azure Functions investigation by andystaples in #174
• Fix when_all to wait for all tasks before surfacing failures by andystaples in #173
• Reconnect workers after peer stream cancellation by Tomer Rosenthal (@torosent) in #176

Full Changelog: v1.7.2...v1.8.0

What's Changed

• Add rewind support by andystaples in #121
• Fix durabletask issues surfaced during Azure Functions investigation by andystaples in #174
• Fix when_all to wait for all tasks before surfacing failures by andystaples in #173
• Reconnect workers after peer stream cancellation by Tomer Rosenthal (@torosent) in #176

Full Changelog: azuremanaged-v1.7.2...azuremanaged-v1.8.0

What's Changed

• Fix FailureDetails JSON serialization and cut v1.7.2 by andystaples in #172

Full Changelog: v1.7.1...v1.7.2

What's Changed

• Change default large-payload threshold to 256 KiB (mirror .NET) by Tomer Rosenthal (@torosent) in #166
• Add parent_instance_id to OrchestrationContext by andystaples in #168
• Schedules hotfix for DTS dashboard by andystaples in #169
• Fix legacy entity protocol: propagate call_entity failures and stop double-encoding results by andystaples in #167

New Contributors

• Tomer Rosenthal (@torosent) made their first contribution in #166

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

What's Changed

• Fix FailureDetails JSON serialization and cut v1.7.2 by andystaples in #172

Full Changelog: azuremanaged-v1.7.1...azuremanaged-v1.7.2

What's Changed

• Change default large-payload threshold to 256 KiB (mirror .NET) by Tomer Rosenthal (@torosent) in #166
• Add parent_instance_id to OrchestrationContext by andystaples in #168
• Schedules hotfix for DTS dashboard by andystaples in #169
• Fix legacy entity protocol: propagate call_entity failures and stop double-encoding results by andystaples in #167

New Contributors

• Tomer Rosenthal (@torosent) made their first contribution in #166

Full Changelog: azuremanaged-v1.7.0...azuremanaged-v1.7.1