On March 31, 2024, RingCentral's use of PubNub to power push notifications [will cease][1], and any applications that have not migrated to WebSockets will no longer function properly. Apps built using older versions of [RingCentral Embeddable][2] are therefore at risk of being disrupted.

**All developers are required to upgrade to RingCentral Embeddable 1.9 or greater.**

Upgrading to the latest version of Embeddable could not be easier. Check out [Embeddable's README][3] to learn how to update your app seamlessly.

**Please use a custom client ID**

In our efforts to support developers in this upgrade, we discovered a large number of developers have not yet updated their Embeddable integration to use a custom client ID. This can be problematic for a number of reasons, but primarily because under high load, the actions of one user of one integration, could impact other users of another integration -- with little warning, or ability to diagnose or troubleshoot the root cause. Therefore, we have recently updated our guidance.

*Usage of Embeddable without specifying a custom client ID is appropriate for demonstration purposes only. When using Embeddable in a production context, we **strongly recommend** developers to [register their own app][4] and to [customize the client ID][5] used by their instance of Embeddable.*

**Getting help and support**

The RingCentral Developer Support team is ready to assist you if you have any questions, or need any help. Feel free to post a question here in our community, or [file a help ticket][6] for personalized assistance.


[1]: https://community.ringcentral.com/articles/116312/end-of-life-for-pubnub-event-delivery-scheduled-fo.html
[2]: https://developers.ringcentral.com/embeddable-voice
[3]: https://github.com/ringcentral/ringcentral-embeddable#using-the-latest-version-of-embeddable
[4]: https://developers.ringcentral.com/guide/getting-started/register-app
[5]: https://github.com/ringcentral/ringcentral-embeddable/blob/master/docs/config-client-id-and-secret.md
[6]: https://developers.ringcentral.com/support/create-case