---
title: "Changes to Create Filter View"
method: POST
path: "/api/v1/sessions/{session_id}/views"
---

# Changes to Create Filter View

`POST /api/v1/sessions/{session_id}/views`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 77 revisions.

- **2026-10-23** `bd40f61379d7`: 6 info
- **2026-10-16** `1a8ee9358d81`: 4 breaking, 4 info

## Changes

- **2026-10-23** `bd40f61379d7`: 6 info
  - added the non-success response with the status `400`
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - added the non-success response with the status `404`
  - added the non-success response with the status `500`
  - the response property `detail` became required for the status `422`
- **2026-10-16** `1a8ee9358d81`: 4 breaking, 4 info
  - the `detail/items/` response's property type changed from `object` to `string` for status `422`
  - removed the required property `detail/items/loc` from the response with the `422` status
  - removed the required property `detail/items/msg` from the response with the `422` status
  - removed the required property `detail/items/type` from the response with the `422` status
  - added the new optional request property `syntax_version`
  - added the new optional request property `thread_filter_string`
  - added the optional property `syntax_version` to the response with the `200` status
  - added the optional property `thread_filter_string` to the response with the `200` status

---

[Operation](https://skmtc.dev/langchain-ai/apis/langsmith/docs/api/v1/sessions/:session_id/views/post.md) - [API](https://skmtc.dev/langchain-ai/apis/langsmith.md) - [Page](https://skmtc.dev/langchain-ai/apis/langsmith/changes/api/v1/sessions/:session_id/views/post)