The unofficial TPU migration guide: Cloud TPU API to Compute Engine

The Cloud TPU API is no longer under active development, with the Google Cloud CLI and Cloud Client Libraries receiving only bug fixes and security updates. While no sunset date exists, new hardware generations starting with TPU7x (Ironwood) are supported exclusively through Compute Engine or Google Kubernetes Engine (GKE). Consequently, users must migrate to ensure compatibility with future chips, as demonstrated by moving a v6e-1 (Trillium) chip serving gemma-4-E2B-it under vLLM to these platforms.