---
title: "Changes to Post Session Message"
method: POST
path: "/sessions/{session_id}/messages"
---

# Changes to Post Session Message

`POST /sessions/{session_id}/messages`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 11 of 39 revisions.

- **2026-10-20** `f9255294952f`: 1 info
- **2026-10-20** `85afb5563d7a`: 6 warning
- **2026-10-07** `33b623259808`: 1 warning
- **2026-09-28** `9c76d9123b22`: 1 warning
- **2026-09-23** `c4109d3755e1`: 2 warning
- **2026-09-22** `bb82245764af`: 1 info
- **2026-09-11** `97b262b63810`: 2 warning, 2 info
- **2026-09-10** `22ea25f84a15`: 2 warning
- **2026-09-09** `1229e41b14fd`: 2 warning, 8 info
- **2026-09-08** `ce91d2efae25`: 1 warning
- **2026-09-02** `f4f24ae2935f`: 1 info

## Changes

- **2026-10-20** `f9255294952f`: 1 info
  - added the optional property `turn/wake_message` to the response with the `201` status
- **2026-10-20** `85afb5563d7a`: 6 warning
  - added the new `outcome` enum value to the `session/trigger` response property for the response status `201`
  - added the new `outcome_check` enum value to the `turn/trigger` response property for the response status `201`
  - added the new `outcome_compact` enum value to the `turn/trigger` response property for the response status `201`
  - added the new `outcome_continue` enum value to the `turn/trigger` response property for the response status `201`
  - added the new `outcome_message` enum value to the `turn/trigger` response property for the response status `201`
  - added the new `outcome_start` enum value to the `turn/trigger` response property for the response status `201`
- **2026-10-07** `33b623259808`: 1 warning
  - added the new `support` enum value to the `turn/trigger` response property for the response status `201`
- **2026-09-28** `9c76d9123b22`: 1 warning
  - added the new `founding_interview` enum value to the `session/trigger` response property for the response status `201`
- **2026-09-23** `c4109d3755e1`: 2 warning
  - added the new `founding_build` enum value to the `turn/trigger` response property for the response status `201`
  - added the new `founding_setup` enum value to the `turn/trigger` response property for the response status `201`
- **2026-09-22** `bb82245764af`: 1 info
  - added the new optional request property `messages`
- **2026-09-11** `97b262b63810`: 2 warning, 2 info
  - added the new `routine` enum value to the `session/trigger` response property for the response status `201`
  - added the new `routine` enum value to the `turn/trigger` response property for the response status `201`
  - added the new optional request property `tz`
  - added the optional property `turn/routine_task_ids` to the response with the `201` status
- **2026-09-10** `22ea25f84a15`: 2 warning
  - removed the request property `mode`
  - added the new `platform` enum value to the `turn/trigger` response property for the response status `201`
- **2026-09-09** `1229e41b14fd`: 2 warning, 8 info
  - added the new `ask_answer` enum value to the `turn/trigger` response property for the response status `201`
  - added the new `waiting` enum value to the `turn/status` response property for the response status `201`
  - added the new optional request property `answer`
  - added the new optional request property `attachments`
  - added the new optional request property `dictated`
  - added the new optional request property `mode`
  - the request property `message` became optional
  - request property `message` list-of-types was widened by adding types `null` to media type `application/json`
  - the `message` request property's minLength was decreased from `1` to `0`
  - added the optional property `turn/continues_run_id` to the response with the `201` status
- **2026-09-08** `ce91d2efae25`: 1 warning
  - added the new `birth` enum value to the `turn/trigger` response property for the response status `201`
- **2026-09-02** `f4f24ae2935f`: 1 info
  - added the optional property `session/rotated_from_session_id` to the response with the `201` status

---

[Operation](https://skmtc.dev/nanocorp/apis/nanocorp-api/docs/sessions/:session_id/messages/post.md) - [API](https://skmtc.dev/nanocorp/apis/nanocorp-api.md) - [Page](https://skmtc.dev/nanocorp/apis/nanocorp-api/changes/sessions/:session_id/messages/post)