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Google/Developer Release Notes

Developer Release Notes

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Google Calendar API

Announcement

Generally available starting June 29, 2026: We are introducing a new calendar access level: writerWithoutPrivateAccess. This new level permits read and write access to events that aren't private on a calendar, and shows private events as busy blocks. Users with this role cannot modify or see details for private events.

Chat API

Feature

Developer Preview: Subscriptions to user read state updates in Google Chat are now available as part of the Developer Preview Program.

Google Chat apps can now subscribe to user read state updates in Google Chat using the Google Workspace Events API. The following event types are supported:

  • google.workspace.chat.spaceReadState.v1.updated: A user's space read state is updated.
  • google.workspace.chat.threadReadState.v1.updated: A user's thread read state is updated.
  • google.workspace.chat.spaceReadState.v1.batchUpdated: Multiple space read states are updated for the subscribed user.
  • google.workspace.chat.threadReadState.v1.batchUpdated: Multiple thread read states are updated for the subscribed user.

This feature requires the https://www.googleapis.com/auth/chat.users.readstate or https://www.googleapis.com/auth/chat.users.readstate.readonly authorization scope.

To learn more, see Subscribe to Google Chat events.

Chat API

Feature

Generally Available: Chat apps using app authentication can now send a forced notification when sending a message or send a message silently by setting the createMessageNotificationOptions field in the CreateMessage request. You can use these options to notify users:

  • Forced notifications: Overrides recipient notification settings and Do Not Disturb (DND) status to ensure the message is delivered as a push notification.

  • Silent messages: Suppresses push notifications and prevents the message from bolding or bumping the space in the recipient's list.

For more information, see Send forced notifications or silent messages.

Chat API

Feature

Chat MCP

Developer Preview: Available as part of the Developer Preview Program, which grants early access to certain features.

The Google Chat Model Context Protocol (MCP) server now supports two new tools: search_messages and send_message. These tools allow AI agents to search for messages across conversations and send messages directly to spaces on behalf of the user.

To get started with the new tools, see the Set up the Chat MCP server guide or view the full list of tools in the Chat MCP tool reference.

Gmail API

Announcement

Generally Available: Updates to Gmail API usage quotas

A new tiering model with updates to API usage quotas will start to roll out. For more information, see Google Workspace standardized model for agent tools and APIs.

Announcement

Generally Available: Quota units for drafts.get, messages.attachments.get, messages.get, messages.trash, threads.get, and threads.trash have changed.

Google Calendar API

Announcement

Generally Available: Updates to Calendar API usage quotas

A new tiering model with updates to API usage quotas will start to roll out. For more information, see Google Workspace standardized model for agent tools and APIs.

Google Drive API

Announcement

Generally Available: Updates to Drive API usage quotas

A new tiering model with updates to API usage quotas will start to roll out. For more information, see Google Workspace standardized model for agent tools and APIs.

Announcement

Generally Available: To help align resource usage in the Google Drive API, usage quotas will change to be measured in quota units instead of the number of requests. Additionally, Google Workspace users can now only egress 1 TB per day. For more information, see Google Drive API usage limits.

Google Workspace Events API

v1beta

Feature

Developer Preview: Subscriptions to user read state updates in Google Chat are now available as part of the Developer Preview Program.

The Google Workspace Events API now supports subscriptions to Google Chat user read state updates. The API supports the following types of events:

  • google.workspace.chat.spaceReadState.v1.updated: A user's space read state is updated.
  • google.workspace.chat.threadReadState.v1.updated: A user's thread read state is updated.
  • google.workspace.chat.spaceReadState.v1.batchUpdated: Multiple space read states are updated for the subscribed user.
  • google.workspace.chat.threadReadState.v1.batchUpdated: Multiple thread read states are updated for the subscribed user.

This feature requires the https://www.googleapis.com/auth/chat.users.readstate or https://www.googleapis.com/auth/chat.users.readstate.readonly authorization scope.

To learn more, see Subscribe to Google Chat events.

Chat API

Feature

Developer Preview: The Model Context Protocol (MCP) server for Google Chat is now available in developer preview. MCP is an open protocol that enables seamless integration between AI applications and your Chat conversations. By configuring the Chat MCP server, you enable AI agents to securely list messages and take actions, such as sending messages in your spaces.

For example, you can ask your AI agent: "What's the latest update in the 'Project X' space?"

To get started with the Chat MCP server, see the following documentation:

To find more available MCP servers, see Model Context Protocol (MCP) servers in Google Workspace.

Gmail API

Feature

Developer Preview: The Model Context Protocol (MCP) server for Gmail is now available in developer preview. MCP is an open protocol that enables seamless integration between AI applications and Gmail. By configuring the Gmail MCP server, you enable AI agents to securely read your emails and take actions, such as creating drafts and labeling messages.

For example, you can ask your AI agent: "What did Ariel say in her last email about our marketing plan?"

To get started with the Gmail MCP server, see the following documentation:

To find more available MCP servers, see Model Context Protocol (MCP) servers in Google Workspace.

Google Calendar API

Feature

Developer Preview: The Model Context Protocol (MCP) server for Google Calendar is now available in developer preview. MCP is an open protocol that enables seamless integration between AI applications and your calendars. By configuring the Calendar MCP server, you enable AI agents to securely read your schedule and take actions, such as creating, updating, or deleting events.

For example, you can ask your AI agent: "When is my next meeting with Ariel?"

To get started with the Calendar MCP server, see the following documentation:

To find more available MCP servers, see Model Context Protocol (MCP) servers in Google Workspace.

Google Drive API

Feature

Developer Preview: The Model Context Protocol (MCP) server for Google Drive is now available in developer preview. MCP is an open protocol that enables seamless integration between AI applications and your Drive files. By configuring the Drive MCP server, you enable AI agents to securely search your files and take actions, such as reading content or creating files.

For example, you can ask your AI agent: "Summarize the file 'Marketing Plan'."

To get started with the Drive MCP server, see the following documentation:

To find more available MCP servers, see Model Context Protocol (MCP) servers in Google Workspace.

Chat API

Feature

Developer Preview: You can now configure and respond to message actions in Google Chat. Message actions let users invoke your Chat app from the message context menu. This feature is available for both Google Chat apps and Google Workspace Add-ons that extend Google Chat through the Developer Preview Program.

Google Workspace add-ons

Feature

Developer Preview: You can now configure and respond to message actions in Google Chat. Message actions let users invoke your Chat app from the message context menu. This feature is available for both Google Chat apps and Google Workspace Add-ons that extend Google Chat through the Developer Preview Program.

Google Meet

Announcement

Meet API

Generally Available: The get and list methods on the smartNotes resource can now retrieve smart notes files in a conference record. For details, see Work with artifacts.

Additionally, subscriptions are now generally available for the following smartNotes events:

  • google.workspace.meet.smartNote.v2.started

  • google.workspace.meet.smartNote.v2.ended

  • google.workspace.meet.smartNote.v2.fileGenerated

For details, see Subscribe to Google Meet events and Respond to events from Google Meet.

Google Apps Script

Feature

Generally Available: The AddOnsResponseService and its associated classes in Apps Script are now generally available. This service allows developers to create and manage interactive responses for Google Workspace Add-ons that extend Google Chat.

Google Workspace add-ons

Feature

Generally Available: The Dialogflow integrations for Google Workspace Add-ons that extend Google Chat is now generally available. These integrations let add-ons use Dialogflow CX or Dialogflow ES to understand and respond to user queries in natural language. For more information, see Build a Dialogflow CX Chat app or Build a Dialogflow ES Chat app.

Feature

Generally Available: The Google Cloud Pub/Sub integration for Google Workspace Add-ons that extend Google Chat is now generally available. This integration allows add-ons to receive and respond to events from Google Chat using Pub/Sub. For more information, see Build a Chat app that uses Pub/Sub.

Last Checked
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Tracking since Nov 20, 2025