About Android app behavior due to discontinue of legacy FCM APIs

[Masanori Abe]

Hello Firebase Team,

We have received the following email.

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We’re writing to let you know that starting June 20, 2024 the legacy Firebase Cloud Messaging (FCM) APIs will be discontinued.

What do you need to do?

Take the following actions before June 20, 2024, to ensure that you have access to the latest supported features and to reduce the risk of future decommissions affecting your usage:

• Follow the instructions described in Firebase FAQ to migrate your individual APIs.
• Update to the latest versions of Firebase SDKs

Platform                Recommended FCM SDK version

Android                      >= 23.1.2

iOS                              >= 10.10.0

Web (Javascript)     >= 9.22.1

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The recommended SDK version for Android is listed as ">= 23.1.2".
If the SDK version is less than 23.1.2, does it affect the behavior of the Android app?
For example, "Errors occur when making API calls", "Errors are notified to the end user via popups, toast, etc.",etc

Best regards,

Abe

[Arthur Thompson]

Hi,

This email is mainly about the deprecation of the legacy HTTP FCM API. So you should migrate to v1 HTTP FCM API for sending FCM messages.

The email also mentions that you should update your clients to use the latest FCM client SDKs. While messages sent to older SDKs will likely still work it is recommended to upgrade to ensure best compatibility with messages sent from the v1 HTTP API.

The use of older SDKs would not necessarily result in errors or user visible pop ups, but can result in unexpected app behavior.

Hope this helps,

Arthur.

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[Masanori Abe]

Thank you for the reply.
I understood what you taught me.

2024年2月27日火曜日 4:06:18 UTC+9 Arthur Thompson: