API v3's screens, playlists, groups, and assets endpoints are switched off

API v3 has reached the date we announced in July. From October 1, 2026, the v3 endpoints for managing screens, playlists, groups, and assets no longer work:

• Requests to /api/v3/assets/, /api/v3/groups/, /api/v3/playlists/, and /api/v3/screens/ get a 410 Gone response, with an error that points to the API reference.
• The URLs for a single item under those paths, such as /api/v3/screens/<id>/, no longer work either.

2 calls keep working for now, so older versions of the Screenly CLI can still add and remove screens: POST /api/v3/screens/ adds a screen, and DELETE /api/v3/screens/<id>/ removes one.

The same data is in API v4.1, at /v4.1/assets, /v4.1/labels (what v3 called groups), /v4.1/playlists, and /v4.1/screens. The API reference covers each one.

If an integration still calls these v3 endpoints: its requests fail from October 1, 2026. Move them to the API v4.1 endpoints above.