---
title: "Changes to Patch the version"
method: PATCH
path: "/models/{model_id}/versions/{version_id}"
---

# Changes to Patch the version

`PATCH /models/{model_id}/versions/{version_id}`

> Every recorded change to this operation, newest first.
> 34 revisions in range; 4 not diffed.

## Timeline

Changed in 7 of 34 revisions.

- **2026-07-17** `a1e12cbeeebc`: 10 info
- **2024-12-05** `14228a52f169`: 1 info
- **2024-03-01** `d877210ee347`: 2 breaking, 3 warning, 3 info
- **2024-01-26** `ab97b531bbc1`: 3 breaking
- **2024-01-23** `c3ef0b1c733b`: 1 info
- **2023-12-05** `d062ab20ef25`: 1 breaking
- **2020-09-28** `c4b3505de7df`: 1 breaking

## Changes

- **2026-07-17** `a1e12cbeeebc`: 10 info
  - added the new optional request property `endpoints/items/environment/default_resource_request/liveness_probe`
  - added the new optional request property `endpoints/items/environment/default_resource_request/readiness_probe`
  - added the new optional request property `endpoints/items/environment/default_transformer_resource_request/liveness_probe`
  - added the new optional request property `endpoints/items/environment/default_transformer_resource_request/readiness_probe`
  - added the new optional request property `endpoints/items/image_builder_resource_request/liveness_probe`
  - added the new optional request property `endpoints/items/image_builder_resource_request/readiness_probe`
  - added the new optional request property `endpoints/items/resource_request/liveness_probe`
  - added the new optional request property `endpoints/items/resource_request/readiness_probe`
  - added the new optional request property `endpoints/items/transformer/resource_request/liveness_probe`
  - added the new optional request property `endpoints/items/transformer/resource_request/readiness_probe`
- **2024-12-05** `14228a52f169`: 1 info
  - added the new optional request property `endpoints/items/model_observability`
- **2024-03-01** `d877210ee347`: 2 breaking, 3 warning, 3 info
  - added the new required request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/BinaryClassificationOutput]/actual_score_column`
  - the request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/RegressionOutput]/actual_score_column` became required
  - removed the request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/BinaryClassificationOutput]/actual_label_column`
  - removed the request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/RankingOutput]/prediction_group_id_column`
  - removed the request property `model_schema/spec/prediction_id_column`
  - added the new optional request property `model_schema/spec/feature_orders`
  - added the new optional request property `model_schema/spec/row_id_column`
  - added the new optional request property `model_schema/spec/session_id_column`
- **2024-01-26** `ab97b531bbc1`: 3 breaking
  - the request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/BinaryClassificationOutput]/output_class` became required
  - the request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/RankingOutput]/output_class` became required
  - the request property `model_schema/spec/model_prediction_output/oneOf[#/components/schemas/RegressionOutput]/output_class` became required
- **2024-01-23** `c3ef0b1c733b`: 1 info
  - added optional request body
- **2023-12-05** `d062ab20ef25`: 1 breaking
  - removed the request body
- **2020-09-28** `c4b3505de7df`: 1 breaking
  - removed the request body

---

[Operation](https://skmtc.dev/caraml-dev/apis/merlin/docs/models/:model_id/versions/:version_id/patch.md) - [API](https://skmtc.dev/caraml-dev/apis/merlin.md) - [Page](https://skmtc.dev/caraml-dev/apis/merlin/changes/models/:model_id/versions/:version_id/patch)