Monthly Archive

November 2026 API Changes

Historical archive of all discovery document diffs, schema evolutions, and breaking change alerts recorded during November 2026.

35Total Updates
23Breaking Alerts
19High Impact
Showing 35 updates in November 2026

November 2026 Updates Stream

Cloud Storage`storage.v1`•
Medium Impact

Object Zonal Availability Info Added

Cloud Storage objects now expose `zonalAvailabilityInfo` in their metadata, detailing their presence in Rapid Cache Ultra (RCU) zonal caches. This includes a list of `availableZones` where the object has a zonal copy.

Methods:
Vertex AI`aiplatform.v1beta1`•
Breaking

Vertex AI: New Tuning, Agent Features, Breaking Changes & Rollbacks

This Vertex AI v1beta1 update introduces new breaking changes by making `task` and `parent` parameters strictly required for specific agent task methods. However, it also rolls back previous breaking changes by making `Agent.status` and `AgentStatus.state` writable again. Key new features include Omni LoRA tuning for advanced model customization, expanded OAuth scopes for Discovery Engine integration, and new agent task management capabilities.

Methods:
Vertex AI`aiplatform.v1`•
Medium Impact

Vertex AI Agent Status Writable Again; Discovery Engine Scopes Added

Vertex AI has reversed a recent update, making `Agent.status` and `AgentStatus.state` properties writable once more, restoring developer control. Additionally, many `operations.get` methods now support new Discovery Engine-related OAuth scopes, indicating deeper integration with Agentspace, Vertex AI Search, and NotebookLM Enterprise.

Methods:
Cloud Pub/Sub`pubsub.v1`•
Breaking

Zstd Compression Option Rolled Back

The recently added Zstd compression algorithm option for Pub/Sub messages has been removed. Developers using or planning to use Zstd compression should revert to other supported algorithms.

Methods:
Looker Core`looker.v1`•
Breaking

Looker API: ComponentMetrics property renamed

The `ComponentMetrics` schema in the Looker API has a breaking change: the `componentType` property has been renamed to `type`. Developers must update their integrations to use the new property name.

Android Publisher`androidpublisher.v3`•
Breaking

Breaking Changes & New Subscription Plan Transition APIs

This update introduces breaking changes by making `packageName` and `token` strictly required in certain contexts and `transitionState` read-only. Developers can now programmatically manage subscription plan transitions with new `cancelplantransition` and `scheduleplantransition` methods.

Methods:
Cloud Pub/Sub`pubsub.v1`•
Medium Impact

Pub/Sub Adds Zstd Compression Support

Cloud Pub/Sub now supports Zstd as a compression algorithm for messages. Developers can leverage Zstd for potentially better compression ratios and performance, offering more options for optimizing message throughput and storage.

Methods:
Dataform`dataform.v1`•
Breaking

Dataform Workspaces Get Async Creation, `parent` Now Required

Dataform introduces `createLongRunning` for asynchronous Workspace creation. This new method requires the `parent` parameter, which is a breaking change if you were previously omitting it in early integrations.

Methods:
Cloud Storage`storage.v1`•
Breaking

Anywhere Cache 'pause' method removed; Rapid Cache info added

The `anywhereCaches.pause` method has been removed from the Cloud Storage API, which is a breaking change for integrations managing Anywhere Cache instances. Additionally, the `BucketStorageLayout` schema now includes `rapidCacheInfo` to expose details about Rapid Cache configurations.

Methods:
Gmail API`gmail.v1`•
Released Medium Impact

Gmail API Introduces Granular OAuth Scopes

The Gmail API has rolled out a comprehensive set of new, granular OAuth2 scopes, enabling developers to request more precise permissions for drafts, messages, labels, and filters. This update aims to enhance security and user privacy by promoting the principle of least privilege.

Methods:
BigQuery`bigquery.v2`•
Breaking

Routine Package Details & IAM Policy Members Added, Several Fields Now Read-Only

BigQuery now provides detailed information about installed packages within routine build statuses and introduces a new schema for IAM policy members on tables. Be aware of breaking changes as several properties across `InstalledPackage`, `ResourcePolicyMember`, `RoutineBuildStatus`, and `Table` schemas have been made read-only.

Methods:
Vertex AI Agent Builder`discoveryengine.v1alpha`•
Released (2d lead)Breaking

Discovery Engine: User Availability APIs & Breaking Changes

Discovery Engine introduces new APIs for managing UserAvailability resources, including batch updates and listing. However, this update includes breaking changes: `name` and `parent` parameters are now strictly required in certain contexts, and `verification` and `updateTime` properties are now read-only.

Methods:
Dataplex`dataplex.v1`•
Breaking

Dataplex Batch Operations Get Detailed Metadata, Scope Changes

Dataplex introduces a new `BatchOperationMetadata` schema for detailed insights into long-running batch operations. Be aware of breaking changes as several properties within this new schema are explicitly read-only. Additionally, access scopes for `entryLinks.get` have been updated.

Methods:
Vertex AI Agent Builder`discoveryengine.v1`•
Breaking

Discovery Engine: Feature Access Policies & Breaking Change

This update introduces granular feature access policies for Discovery Engine instances, allowing you to control who can use specific features. A breaking change makes the `verification` field in `EngineFeaturePolicyMember` read-only.

Methods:
Data Catalog`datacatalog.v1beta1`•
Breaking

Data Catalog v1beta1 API: Massive Breaking Changes & Rollback

The Data Catalog v1beta1 API has undergone a significant and breaking change, with nearly all methods and schemas related to entries, entry groups, and tag templates being removed. This constitutes a major rollback and effective deprecation of the v1beta1 API surface.

Methods:
Data Catalog`datacatalog.v1`•
Breaking

Major Breaking Change: Data Catalog V1 API Surface Significantly Reduced

The Data Catalog V1 API has undergone a substantial breaking change, with numerous methods and schema properties removed. Developers relying on entry groups, entries, tags, and tag templates will need to update their integrations.

Methods:
Cloud Composer`composer.v1`•
Breaking

Hibernate/Resume Composer Environments, New X-Extra Large Size

Cloud Composer now allows you to hibernate and resume environments, enabling significant cost savings for development and intermittent workloads. Additionally, a new X-Extra Large environment size is available for more demanding use cases.

Methods:
Application Integration`integrations.v1`•
Medium Impact

New Workflow Text Proto & Publish Validation

Application Integration now supports a `WORKFLOW_TEXTPROTO` file format for specific upload/download operations, enabling a new way to manage integration definitions. Additionally, a `validateOnly` option has been added to the publish request, allowing pre-flight checks without actual deployment.

Methods:
BigQuery`bigquery.v2`•
Breaking

BigQuery: Dataset Replication, Python UDFs, and Breaking Changes

BigQuery introduces cross-region dataset replication and disaster recovery capabilities, along with significant enhancements for Python UDFs. Be aware of breaking changes where several job and replica statistics properties are now read-only.

Methods:
Vertex AI`aiplatform.v1beta1`•
Released Breaking

Vertex AI v1beta1: Major Breaking Changes, GenAI Expansion, and Feature Re-rollouts

This Vertex AI v1beta1 update introduces significant breaking changes, making several parameters required and many properties read-only. Developers must adapt to the removal of the `media.upload` method and the retraction of recently added `idpNonce` and `ids` parameters. On the feature side, the API sees a massive expansion in GenAI capabilities, including detailed interaction tracking, new content types, and comprehensive agent task management, alongside the re-introduction of `continuationToken` for long-running GenAI operations.

Methods:
Vertex AI`aiplatform.v1`•
Released Breaking

Vertex AI: Agent Identity, Memory, Notebook Defaults, and API Rollbacks

This update introduces breaking changes by making several agent-related schema properties read-only and removing recently added parameters. On the feature side, Vertex AI Agents gain significant new configuration options for identity, memory, encryption, and persona. A new method allows setting default Notebook Runtime Templates, and GenAI models get new capabilities like Bash code execution and video upscaling.

Methods:
YouTube Data API`youtube.v3`•
Medium Impact

YouTube Shorts Thumbnails Now Available

The `ThumbnailDetails` schema now includes a new `shortsAspectRatio` property, providing access to 9:16 aspect ratio thumbnails specifically for YouTube Shorts. This allows developers to better display Shorts content.

Methods:
BigQuery Reservation`bigqueryreservation.v1`•
Breaking

BigQuery Reservation Adds Edition Upgrade API

The BigQuery Reservation API now includes a new `upgradeEdition` method, allowing programmatic upgrades of reservation editions (e.g., Standard to Enterprise). This enables more flexible management of your BigQuery capacity.

Methods:
Vertex AI Agent Builder`discoveryengine.v1beta`•
Breaking

Breaking Changes: Read-Only Fields; New Feature Toggles & OAuth Scopes

This update introduces breaking changes by making several fields read-only across Engine, Project, and AssistAnswer schemas. Developers must update any code attempting to write to these properties. Additionally, new capabilities include customer-managed OAuth scopes for connectors, global feature toggle controls for engines, and the ability to specify provisioning intent for projects.

Vertex AI Agent Builder`discoveryengine.v1alpha`•
Breaking

Discovery Engine: Feature Toggle Controls & Breaking Schema Changes

Discovery Engine introduces new controls for global feature rollout stages and provides read-only access to effective feature states. However, this update includes significant breaking changes as many properties related to engine configuration, project experience, and tool display names have been made read-only.

Vertex AI Agent Builder`discoveryengine.v1`•
Breaking

Breaking Change: Many Fields Now Read-Only; New Feature Controls

This update introduces several breaking changes where numerous API properties have been made read-only. Developers must update their code if they were previously writing to these fields. Additionally, new capabilities for managing feature toggles, provisioning project experiences, and custom OAuth scopes are now available.

Methods:
Dataform`dataform.v1beta1`•
Breaking

Dataform: Async Workspace Creation & Concurrency Control

Dataform now offers an asynchronous method for creating workspaces, `createLongRunning`, which requires a `parent` parameter. You can also set a `concurrentActionsLimit` in `InvocationConfig` for finer control over workflow execution.

Methods:
Dataform`dataform.v1`•
Medium Impact

Dataform Workflows Get Concurrency Control

Dataform now allows developers to set a maximum concurrent actions limit for workflow invocations. A new `QUEUED` state for actions provides visibility into concurrency-related delays.

Methods:
AlloyDB`alloydb.v1`•
Medium Impact

AlloyDB Autoscaling Adds Connection Count Metric

AlloyDB's autoscaling policies for read pools can now leverage connection count as a scaling metric. This allows for more granular control, enabling dynamic adjustments based on the number of active database connections.

AlloyDB`alloydb.v1beta`•
Medium Impact

AlloyDB Autoscaling Gains Connection Count Policy

AlloyDB v1beta now introduces a new autoscaling policy type based on connection count. You can configure your autoscaler to scale instances based on a target number of connections.