---
title: "Changes to Create task"
method: POST
path: "/v2/tasks"
---

# Changes to Create task

`POST /v2/tasks`

> Every recorded change to this endpoint, newest first.
> 16 revisions in range; 1 not diffed.

## Timeline

Changed in 3 of 16 revisions.

- **2026-08-28** `f63ac334fd4a` — 2 breaking, 8 warning, 6 info
- **2026-08-27** `9263b98aaefb` — 2 info
- **2026-08-10** `4d95080d8ffb` — 1 breaking, 4 info

## Changes

- **2026-08-28** `f63ac334fd4a` — 2 breaking, 8 warning, 6 info
  - the `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/evaluators/items/` request property type/format changed from `object`/`` to ``/``
  - the `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/evaluators/items/` request property type/format changed from `object`/`` to ``/``
  - removed the request property `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/evaluators/items/column_mappings`
  - removed the request property `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/evaluators/items/evaluator_id`
  - removed the request property `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/evaluators/items/evaluator_version_id`
  - removed the request property `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/evaluators/items/query_filter`
  - removed the request property `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/evaluators/items/column_mappings`
  - removed the request property `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/evaluators/items/evaluator_id`
  - removed the request property `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/evaluators/items/evaluator_version_id`
  - removed the request property `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/evaluators/items/query_filter`
  - added the new optional request property `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/query_filters`
  - added the new optional request property `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/query_filters`
  - added `#/components/schemas/SpanEvaluatorInput, #/components/schemas/TraceOrSessionEvaluatorInput` to the `oneOf[#/components/schemas/CreateCodeEvaluationTaskRequest]/evaluators/items/` request property `oneOf` list
  - added `#/components/schemas/SpanEvaluatorInput, #/components/schemas/TraceOrSessionEvaluatorInput` to the `oneOf[#/components/schemas/CreateTemplateEvaluationTaskRequest]/evaluators/items/` request property `oneOf` list
  - added the optional property `evaluators/items/query_mappings` to the response with the `201` status
  - added the optional property `query_filters` to the response with the `201` status
- **2026-08-27** `9263b98aaefb` — 2 info
  - added the optional property `run_configuration/allOf[#/components/schemas/RunConfiguration]/oneOf[#/components/schemas/LlmGenerationRunConfig]/invocation_parameters/service_tier` to the response with the `201` status
  - added the optional property `run_configuration/allOf[#/components/schemas/RunConfiguration]/oneOf[#/components/schemas/TemplateEvaluationRunConfig]/invocation_parameters/service_tier` to the response with the `201` status
- **2026-08-10** `4d95080d8ffb` — 1 breaking, 4 info
  - removed `#/components/schemas/LlmGenerationRunConfig, #/components/schemas/TemplateEvaluationRunConfig, #/components/schemas/AgentCallRunConfig` from the `oneOf[#/components/schemas/CreateRunExperimentTaskRequest]/run_configuration` request property `oneOf` list
  - mapped value for discriminator key `AGENT_CALL` changed from `#/components/schemas/AgentCallRunConfig` to `#/components/schemas/AgentCallRunConfigRequest` for `oneOf[#/components/schemas/CreateRunExperimentTaskRequest]/run_configuration` request property
  - mapped value for discriminator key `LLM_GENERATION` changed from `#/components/schemas/LlmGenerationRunConfig` to `#/components/schemas/LlmGenerationRunConfigRequest` for `oneOf[#/components/schemas/CreateRunExperimentTaskRequest]/run_configuration` request property
  - mapped value for discriminator key `TEMPLATE_EVALUATION` changed from `#/components/schemas/TemplateEvaluationRunConfig` to `#/components/schemas/TemplateEvaluationRunConfigRequest` for `oneOf[#/components/schemas/CreateRunExperimentTaskRequest]/run_configuration` request property
  - added `#/components/schemas/LlmGenerationRunConfigRequest, #/components/schemas/TemplateEvaluationRunConfigRequest, #/components/schemas/AgentCallRunConfigRequest` to the `oneOf[#/components/schemas/CreateRunExperimentTaskRequest]/run_configuration` request property `oneOf` list

---

[Operation](https://skmtc.dev/arize-ai/apis/arize-rest-api/docs/v2/tasks/post.md) · [API](https://skmtc.dev/arize-ai/apis/arize-rest-api.md) · [Page](https://skmtc.dev/arize-ai/apis/arize-rest-api/changes/v2/tasks/post)