---
title: "Changes to Upgrade Reference Data Additional Symbols"
method: POST
path: "/v0/licensing/me/subscriptions/reference/upgrade"
---

# Changes to Upgrade Reference Data Additional Symbols

`POST /v0/licensing/me/subscriptions/reference/upgrade`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 14 revisions.

- **2026-08-26** `bfad43bdc34d`: 1 warning
- **2026-07-31** `e756acdab11d`: 2 breaking, 2 info

## Changes

- **2026-08-26** `bfad43bdc34d`: 1 warning
  - added the new `Indices` enum value to the `asset_class/items/` response property for the response status `200`
- **2026-07-31** `e756acdab11d`: 2 breaking, 2 info
  - added the pattern `^[A-Za-z0-9]+$` to the request property `name`
  - added the pattern `^[A-Za-z0-9]+$` to the request property `provider`
  - the `name` response's property pattern `^[A-Za-z0-9]+$` was added for the status `200`
  - the `provider` response's property pattern `^[A-Za-z0-9]+$` was added for the status `200`

---

[Operation](https://skmtc.dev/databento/apis/databento-openapi-specification/docs/v0/licensing/me/subscriptions/reference/upgrade/post.md) - [API](https://skmtc.dev/databento/apis/databento-openapi-specification.md) - [Page](https://skmtc.dev/databento/apis/databento-openapi-specification/changes/v0/licensing/me/subscriptions/reference/upgrade/post)