So, finally i got email from the G Suite Team:
Hello G Suite Developer,
We found that one or more of your apps is using the [Google Drive Android API], which will be shut down on December 6, 2019 . Affected apps are listed at the end of this email.
On December 6, 2018, we announced that we’re simplifying options for developers by retiring the [Google Drive Android API]. We will focus solely on expanding functionality for the [Google Drive REST API].
Should i start worry now? Will SDKBOX migrate to Google Drive REST API? What should i do?