Google Cloud updates: Bigtable, Gemini, GKE, Chronicle API

Google Cloud announced several updates across its services. Bigtable now offers backups up to 365 days, Gemini Enterprise released Core Assistant GA and preview observability features, and GKE introduced C4A bare metal instances and Confidential GKE Nodes. The Chronicle API has been unified and upgraded, while Cloud Storage will delete empty folders with its Object Lifecycle Management Delete action starting August 2026.