On June 20, 2024, Google will officially discontinue the use of its legacy Firebase Cloud Messaging (FCM) APIs. This move, which affects the legacy HTTP and XMPP protocols, is part of a larger effort by Google to improve the security, reliability and performance of its services. As a result, users currently using the older APIs will need to migrate to the more modern HTTP v1 APIs.



Important changes and what they mean



Google will be disabling several older APIs, including:

• Legacy HTTP Protocol

• Legacy XMPP Protocol

• Various server-side and client-side SDKs

The switch to the HTTP v1 API will be necessary to continue sending messages. This API not only offers improved functionality and security, but is also designed for long-term support.



What you should do now



1. Review your current usage: Understand which parts of your infrastructure are affected by the discontinuation.

2. Plan your migration: Switch to the newer HTTP v1 APIs before the older APIs are discontinued.

3. Consider alternatives: Look at services like OneSignal that may offer additional features and an improved user experience.