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v1.23.0 - 2026-05-27

Added

• Fixes cancellation_grace_period and cancellation_warning_threshold not being propagated from client config to Hatchet config.
• Adds grpc_max_recv_message_length and grpc_max_send_message_length to client config, also configurable via env vars. Defaults to 4MB.

Fixed

• SDK import deprecation warnings to route via process.emitWarning with code HATCHET_V0_REMOVED.
• EventClient.BulkPush call uses options argument as fallback when no input is present.

v1.22.4 - 2026-05-22

Fixed

• Bumped @anthropic-ai/claude-agent-sdk to ^0.3.148 so Claude agent SDK integrations resolve the correct Linux native binary on glibc systems.
• Updated the TypeScript Claude agent example to load the ESM-only Claude Agent SDK dynamically.

v1.22.3 - 2026-05-18

Fixed

• Fixed @openai/agents import that was not inside try block and caused errors when installing with Bun.

v1.22.2 - 2026-05-13

Fixed

• Fixed DurableContext.waitForEvent overload ordering so calls without a payload schema infer the untyped event payload return type.

v1.22.1 - 2026-05-05

Fixed

Moved optional dependencies from optionalDependencies to peerDependencies.

v1.22.0 - 2026-04-28

Added

• Adds mcpTool method to Workflow objects for integration with Claude and OpenAI agent SDKs. Requires Zod v4.
• Bumps minimum Zod version to 3.25.0. Zod schemas provided to the SDK must be Zod 4 schemas, but you can still use Zod 3 in your application code.

v1.21.2 - 2026-04-22

Added

• Adds triggeringEventId and triggeringEventKey to the Context

v1.21.1 - 2026-04-21

Fixed

• Adds an optional label on durable event waits, which will propagate through to the dashboard

v1.21.0 - 2026-04-08

Added

• runMany and runManyNoWait APIs for workflows and standalone tasks to support bulk runs with per-run options.
• RunManyOpt input shape containing an input object and an options object.

Changed

• Bulk docs to include runMany and runManyNoWait examples.

v1.20.1 - 2026-04-07

Fixed

• Fixed duplicate child run deduplication when mixing ctx.runChild() and workflow.runNoWait() (or deeply nested recursive spawns). Context.spawnIndex and ParentRunContextManager.childIndex were tracked independently, causing both APIs to emit overlapping childIndex values and silently deduplicate children that should have been unique. The two counters now share a single source of truth via AsyncLocalStorage, and incrementChildIndex mutates the context object in place instead of replacing it with enterWith, which lost updates across await boundaries.

v1.20.0 - 2026-04-07

Added

• Adds scope and lookbackWindow arguments for the DurableContext.waitForEvent, which allows durable tasks to look back in time for events that may have been emitted before the task started.

v1.19.1 - 2026-03-25

Changed

• Event source info (hatchet__source_workflow_run_id, hatchet__source_step_run_id) is now injected into event metadata at the EventClient level, so cross-workflow trace linking works even without the OTel instrumentor enabled.

v1.19.0 - 2026-03-25

Fixed

• Fixed OpenTelemetry version mismatch causing TypeError: Cannot read properties of undefined (reading 'name') when exporting spans. The SDK now requires OpenTelemetry JS SDK 2.x (@opentelemetry/sdk-trace-base@^2.0.0, @opentelemetry/core@^2.0.0) to match the @opentelemetry/exporter-trace-otlp-grpc@^0.208.0 dependency.

Changed

• Updated OpenTelemetry optional dependencies to the unified 2.x release set.

v1.18.0 - 2026-03-18

Added

• OpenTelemetry instrumentation via HatchetInstrumentor with automatic tracing for workflow runs, event pushes, and step executions
• OpenTelemetry example demonstrating automatic and custom span instrumentation (examples/opentelemetry_instrumentation)

v1.17.2 - 2026-03-17

Added

• Added getTaskStats and scrapePrometheusMetrics methods to the metrics client.

v1.17.1 - 2026-03-17

Changed

• Updates the DurableTaskRunAckEntryResult interface to include workflowRunExternalId field, to enable spawning children from durable tasks fire-and-forget style.

v1.17.0 - 2026-03-16

Added

• Added a DurableContext.waitForEvent helper which returns the payload of the awaited event.
• Added an EvictionPolicy, which allows durable tasks to be evicted from the worker when idle.

Changed

• Makes a bunch of internal-facing changes for new durable execution features

v1.16.0 - 2026-03-11

Added

• Added logs client for retrieving task run logs.

v1.15.2 - 2026-03-06

Fixed

• waitFor and task conditions (e.g. user event keys) are correctly namespaced when using a non-default namespace.
• Cron expressions now support an optional leading seconds field (6-part expressions), e.g. 30 * * * * * to trigger at 30 seconds past every minute.

v1.15.1 - 2026-03-04

Fixed

• Fix npm publish so the package includes compiled JavaScript at the correct paths.

v1.15.0 - 2026-03-03

Added

• Adds a desiredWorkerLabels option to RunOpts to allow dynamically routing task runs to a specific worker at trigger time

v1.14.0 - 2026-02-28

Deprecated

• v0 SDK is now deprecated. Migrate to the v1 API for ongoing support.

Added

• Internal legacy transformer for backwards compatibility with existing v0 workflows and workers.

v1.13.1 - 2026-02-27

Changed

• Updated internal dependencies to address security advisories.

v1.13.0 - 2026-02-23

Added

• Introduced client middleware support with composable before/after hooks to customize request handling and response processing.
• Added middleware examples and recipes to demonstrate practical client-side patterns.

v1.12.1 - 2026-02-18

Fixed

• Restored ctx.taskRunId() as a deprecated alias for ctx.taskRunExternalId() on both v0 and v1 worker contexts, so existing code calling ctx.taskRunId() continues to work after the proto naming changes in 1.11.0.

v1.12.0 - 2026-02-13

Added

• Webhooks client for managing incoming webhooks: create, list, get, update, and delete methods for webhooks, so external systems (e.g. GitHub, Stripe) can trigger workflows via HTTP.

v1.11.0 - 2026-02-05

Internal Only

• Updated gRPC/REST contract field names to lowerCamelCase for consistency across SDKs.

v1.11.0 - 2026-02-04

Changed

• Updated the metrics client for the latest server metrics APIs (including adding getTaskStatusMetrics for tenant task/run status counts).
• Removes deprecated metrics methods.

v1.10.8 - 2026-02-02

Changed

• Improved cancellation log messages: cancellation-related logs now use debug level instead of error level since cancellation is expected behavior, not a failure.
• Updated terminology in log messages from “step run” to “task run” for consistency.
• Added link to cancellation docs (https://docs.hatchet.run/home/cancellation) in error messages when task completion fails.

v1.10.7 - 2026-01-27

Added

• Adds support for an inputValidator prop on the various workflow definitions, e.g. hatchet.workflow and hatchet.task, which accepts a Zod schema to validate the input to the workflow or task. Used on the dashboard to provide autocomplete on the trigger workflow form.

v1.10.6 - 2026-01-27

Changed

• Improves handling of cancellations for tasks to limit how often tasks receive a cancellation but then are marked as succeeded anyways.