when I send a push in firebase console theres a problem of duplicated notifications, because etpushsdk uses gcm and my application fcm. I'm using etpushsdk 4.8.4, is there any previsition when etpushsdk will migrate to fcm to replace gcm?
UPDATE: Version 5.1.3 of the Android SDK supports multiple push providers and is available for immediate consumption: http://salesforce-marketingcloud.github.io/JB4A-SDK-Android/
A forthcoming release of the SDK will support multiple GCM providers and you should be able to configure your application to handle push notifications from both sources without incurring the duplicate notifications you're currently experiencing.
The version will be 5.1.x and is going through regression testing for release in the next few weeks.