---
title: "Changes to PATCH /api/memory-trackers/{memoryTracker}/property-key"
method: PATCH
path: "/api/memory-trackers/{memoryTracker}/property-key"
---

# Changes to PATCH /api/memory-trackers/{memoryTracker}/property-key

`PATCH /api/memory-trackers/{memoryTracker}/property-key`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 11 of 195 revisions.

- **2026-09-27** `482412c3c1b0` — 4 breaking, 2 warning
- **2026-09-13** `370013d86c63` — 1 warning
- **2026-08-20** `405d22528fd9` — 1 warning, 1 info
- **2026-08-16** `ac082a70e578` — 1 info
- **2026-08-15** `80b350ff0ad1` — 1 warning, 1 info
- **2026-08-08** `f04215d476a6` — 1 info
- **2026-08-07** `5806a690d846` — 1 info
- **2026-07-22** `13f77438750e` — 1 warning, 1 info
- **2026-06-07** `ed2e37d5f029` — 1 warning, 1 info
- **2026-06-06** `6691bbdc0bad` — 1 info
- **2026-05-11** `d7c2946139e9` — 1 breaking

## Changes

- **2026-09-27** `482412c3c1b0` — 4 breaking, 2 warning
  - the `recalledNote/ancestorFolders/items/name` response property's maxLength was unset from `512` for the response status `200`
  - the `recalledNote/ancestorFolders/items/name` response property's minLength was decreased from `1` to `0` for the response status `200`
  - removed the required property `recalledNote/ancestorFolders/items/createdAt` from the response with the `200` status
  - removed the required property `recalledNote/ancestorFolders/items/updatedAt` from the response with the `200` status
  - removed the optional property `recalledNote/ancestorFolders/items/parentFolderId` from the response with the `200` status
  - removed the optional property `recalledNote/ancestorFolders/items/readmeContent` from the response with the `200` status
- **2026-09-13** `370013d86c63` — 1 warning
  - removed the optional property `note/deletedAt` from the response with the `200` status
- **2026-08-20** `405d22528fd9` — 1 warning, 1 info
  - removed the optional property `latestTutorFeedbackScore` from the response with the `200` status
  - added the optional property `latestTutorFeedbackGrade` to the response with the `200` status
- **2026-08-16** `ac082a70e578` — 1 info
  - added the optional property `difficulty` to the response with the `200` status
- **2026-08-15** `80b350ff0ad1` — 1 warning, 1 info
  - removed the optional property `forgettingCurveIndex` from the response with the `200` status
  - added the optional property `stability` to the response with the `200` status
- **2026-08-08** `f04215d476a6` — 1 info
  - added the optional property `latestTutorFeedbackScore` to the response with the `200` status
- **2026-08-07** `5806a690d846` — 1 info
  - added the optional property `type` to the response with the `200` status
- **2026-07-22** `13f77438750e` — 1 warning, 1 info
  - removed the optional property `recalledNote/ancestorFolders/items/indexContent` from the response with the `200` status
  - added the optional property `recalledNote/ancestorFolders/items/readmeContent` to the response with the `200` status
- **2026-06-07** `ed2e37d5f029` — 1 warning, 1 info
  - removed the optional property `ancestorFolders` from the response with the `200` status
  - added the optional property `recalledNote` to the response with the `200` status
- **2026-06-06** `6691bbdc0bad` — 1 info
  - endpoint added
- **2026-05-11** `d7c2946139e9` — 1 breaking
  - api path removed without deprecation

---

[Operation](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/docs/api/memory-trackers/:memoryTracker/property-key/patch.md) · [API](https://skmtc.dev/nerds-odd-e/apis/openapi-definition.md) · [Page](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/changes/api/memory-trackers/:memoryTracker/property-key/patch)