1## API v1 Shutdown 2The Cloud Bigtable v1 API was deprecated in January, 2020, and will be shut down on **January 31, 2021**. All customers using the v1 API should upgrade to the Cloud Bigtable [v2 data and admin APIs][apis]. 3 4## Migrating to v2 5If you have projects or applications that use the v1 API, you should start using the v2 APIs to avoid any disruption in your service. 6 7If you connect to Cloud Bigtable using an early version the Cloud Bigtable client libraries that uses the v1 API, please see the client library [upgrade instructions][upgrading-clients]. 8 9 10[apis]: https://cloud.google.com//bigtable/docs/reference/service-apis-overview 11[upgrading-clients]: https://cloud.google.com//bigtable/docs/upgrading-clients.md 12