The Cloud Bigtable v1 API was deprecated on January 31, 2020 and will be shut down on January 31, 2021.
As of January, 2020, only a few customers are still using the v1 API. If you are one of the few remaining v1 customers, meaning you have projects or applications that use the v1 API directly or you are using an old version of a client library, you should start using the v2 APIs to avoid any disruption in your service.
Migrating to v2
The Cloud Bigtable v2 Data API has been generally available since June 2016, and the Cloud Bigtable v2 Admin API has been GA since July 2017.
Any customers using the v1 API should upgrade to the Cloud Bigtable v2 data and admin APIs.
If you connect to Cloud Bigtable using an early version of one of the Cloud Bigtable client libraries, including versions 0.3 and older of the HBase client library, please see the client library upgrade instructions.
Where to get help
If you have any questions, require assistance, or need to request additional time to complete the upgrade, please contact Google Cloud Support.
With any deprecation, there is a follow-up decommission when the API or service is formally removed. The Cloud Bigtable v1 API will be shut down on January 31, 2021.