The AlloyDB v1alpha API has added POSTGRES_19 to the databaseVersion enum across multiple schemas, including Cluster, Backup, and UpgradeClusterRequest. A new edition field is now available for Clusters, allowing selection between EDITION_ALLOYDB (Standard) and EDITION_ALLOYDB_DEVELOPER.
Breaking Change: The edition property in the Backup schema is now marked as readOnly. This field is output-only and indicates the edition of the source cluster; any cluster restored from a backup will automatically inherit the source cluster's edition.
