---
title: "Changes to Update a training session"
method: PATCH
path: "/rl/training-sessions/{session_id}"
---

# Changes to Update a training session

`PATCH /rl/training-sessions/{session_id}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 5 of 15 revisions.

- **2026-08-31** `f4885bc38424` — 1 info
- **2026-08-19** `1fab430e87d6` — 5 info
- **2026-08-15** `468edbdc879c` — 1 info
- **2026-08-08** `f26a23fab8e0` — 2 info
- **2026-08-04** `ebd4756a41e4` — 1 info

## Changes

- **2026-08-31** `f4885bc38424` — 1 info
  - added the required property `policy_state` to the response with the `200` status
- **2026-08-19** `1fab430e87d6` — 5 info
  - added the optional property `inference_checkpoints/items/registration/adapter_object_id` to the response with the `200` status
  - added the optional property `inference_checkpoints/items/registration/adapter_object_revision_id` to the response with the `200` status
  - added the optional property `inference_checkpoints/items/registration/model_object_id` to the response with the `200` status
  - added the optional property `inference_checkpoints/items/registration/model_object_revision_id` to the response with the `200` status
  - added the optional property `training_checkpoints/items/registration` to the response with the `200` status
- **2026-08-15** `468edbdc879c` — 1 info
  - added the optional property `lora_config/train_unembed` to the response with the `200` status
- **2026-08-08** `f26a23fab8e0` — 2 info
  - added the optional property `lora_config/seed` to the response with the `200` status
  - added the required property `base_model` to the response with the `200` status
- **2026-08-04** `ebd4756a41e4` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/together/apis/together-apis/docs/rl/training-sessions/:session_id/patch.md) · [API](https://skmtc.dev/together/apis/together-apis.md) · [Page](https://skmtc.dev/together/apis/together-apis/changes/rl/training-sessions/:session_id/patch)