---
title: "Changes to POST /call/MakeNestedBlockConstraint"
method: POST
path: "/call/MakeNestedBlockConstraint"
---

# Changes to POST /call/MakeNestedBlockConstraint

`POST /call/MakeNestedBlockConstraint`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 52 revisions.

- **2025-09-08** `99302493e325`: 1 breaking, 3 warning, 1 info
- **2025-07-18** `a03327cea083`: 4 breaking
- **2025-06-19** `a0c7a2bb989d`: 3 breaking, 2 warning, 3 info
- **2025-03-11** `e28c8736c70e`: 3 breaking, 1 warning, 2 info

## Changes

- **2025-09-08** `99302493e325`: 1 breaking, 3 warning, 1 info
  - added the new required request property `__baml_options__/client_registry/clients`
  - removed the request property `__baml_options__/client_registry/name`
  - removed the request property `__baml_options__/client_registry/options`
  - removed the request property `__baml_options__/client_registry/provider`
  - added the new optional request property `__baml_options__/client_registry/primary`
- **2025-07-18** `a03327cea083`: 4 breaking
  - added the new required request property `__baml_options__/client_registry/name`
  - added the new required request property `__baml_options__/client_registry/options`
  - added the new required request property `__baml_options__/client_registry/provider`
  - the `__baml_options__/client_registry` request property type changed from no type to `object`
- **2025-06-19** `a0c7a2bb989d`: 3 breaking, 2 warning, 3 info
  - the request property `__baml_options__/client_registry` became required
  - the `__baml_options__/client_registry` request property type changed from `object` to no type
  - the `nbc/checks/cross_field` response's property type changed from no type to `object` for status `200`
  - removed the request property `__baml_options__/client_registry/clients`
  - removed the request property `__baml_options__/client_registry/primary`
  - added the optional property `nbc/checks/cross_field/status` to the response with the `200` status
  - added the required property `nbc/checks/cross_field/expr` to the response with the `200` status
  - added the required property `nbc/checks/cross_field/name` to the response with the `200` status
- **2025-03-11** `e28c8736c70e`: 3 breaking, 1 warning, 2 info
  - the `nbc/checks/cross_field` response's property type changed from `object` to no type for status `200`
  - removed the required property `nbc/checks/cross_field/expr` from the response with the `200` status
  - removed the required property `nbc/checks/cross_field/name` from the response with the `200` status
  - removed the optional property `nbc/checks/cross_field/status` from the response with the `200` status
  - added the new optional request property `__baml_options__/client_registry/clients/items/retry_policy`
  - the request property `__baml_options__/client_registry` became optional

---

[Operation](https://skmtc.dev/boundaryml/apis/baml-cli-serve/docs/call/MakeNestedBlockConstraint/post.md) - [API](https://skmtc.dev/boundaryml/apis/baml-cli-serve.md) - [Page](https://skmtc.dev/boundaryml/apis/baml-cli-serve/changes/call/MakeNestedBlockConstraint/post)