All Google Calendar updates
171 updates to Google Calendar tracked so far. Most recent: 2026-08-18 — Google Calendar now lets users block individuals to remove current event invites and stop future invitations, with the block applied across all Google products.
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2026-08-18Comms & Meetings
Google Calendar now lets users block individuals to remove current event invites and stop future invitations, with the block applied across all Google products.
Starting August 18, 2026, Google Workspace users can block a person directly in Google Calendar; doing so automatically deletes any existing event invitation from that user and prevents new Calendar invites. The blocked user is added to the account‑wide blocklist, so interactions are also blocked in other supported Google apps (e.g., Gmail, Drive). If the user was already blocked elsewhere, their Calendar invites are blocked as well. For non‑Google Calendar users, admins must use Gmail blocking. The feature rolls out gradually over up to 15 days for both Rapid and Scheduled Release domains, with no admin controls required.
Release: Both • Rapid: 2026-08-18 • Scheduled: 2026-08-18 -
2026-08-14Comms & Meetings
New admin controls allow administrators to define which invitation options are available to end users in Google Calendar.
This update expands Calendar settings in the Admin console, enabling admins to set invitation options (auto-add from everyone, known senders only, or after user responds) at the organizational unit or group level. It provides greater control over inbound event invitations from unknown senders and helps minimize potential security risks. End users can select their preferred option within the boundaries set by their administrator. The feature rolls out gradually over up to 15 days starting August 14, 2026, for both Rapid and Scheduled Release domains.
Release: Both • Rapid: 2026-08-14 • Scheduled: 2026-08-14 -
2026-07-29Comms & Meetings
Google Calendar introduces adjustable information density options (Responsive, Comfortable, Compact) to improve viewing on large monitors.
The update adds three density settings—Responsive, which scales events to fill larger screens; Comfortable, which maintains standard spacing; and Compact, which shows more events with tighter spacing—allowing users to tailor the calendar grid to their monitor size and preference. Admins have no control; end users can change settings via Appearance in Calendar on the web. Rollout begins July 29, 2026 for Rapid Release domains and August 10, 2026 for Scheduled Release domains, with extended visibility potentially exceeding 15 days.
Release: Both • Rapid: 2026-07-29 • Scheduled: 2026-08-10 -
2026-07-23Comms & Meetings
Google Calendar now displays a new icon next to leaders who have calendar delegates in the guest list, showing delegate info and enabling direct chat.
When viewing a guest list in Google Calendar on the web, users will see a new icon beside leaders that have a calendar delegate assisting with scheduling. Hovering over the icon reveals the delegate’s information and allows users to start a chat directly. The icon appears in event details view, full-screen creation, and side-by-side scheduling view, helping users quickly identify and contact the appropriate scheduling support.
Release: Both • Rapid: 2026-07-23 • Scheduled: 2026-08-03 -
2026-07-07Comms & Meetings
Changes recurring event visibility so that visibility edits apply to the entire series and existing events adopt the strictest visibility setting in the series.
Google Calendar now prevents users from changing the visibility of a single event within a recurring series; any visibility change affects all events in the series. Additionally, existing events in a recurring series are updated to match the strictest visibility setting among the series (e.g., if one event is private, all become private).
Release: Both • Rapid: 2026-07-07 • Scheduled: 2026-07-07 -
2026-07-07Comms & Meetings
Introduces a new calendar sharing permission level 'Make changes (see private events as free/busy)' that lets delegates edit calendar while hiding private event details.
Google Calendar adds a new sharing permission level named 'Make changes (see private events as free/busy)'. Delegates with this permission can create, delete, and edit non-private events, but private events appear only as 'busy' blocks and cannot be edited or rescheduled. Private events are also hidden from search results for delegates, providing leaders a way to assign calendar management support without exposing private details.
Release: Both • Rapid: 2026-07-07 • Scheduled: 2026-07-07 -
2026-06-18Comms & Meetings
New organization filter for the CalendarList:list API method to monitor secondary calendar ownership.
A new filtering option is being added to the CalendarList:list API method that restricts results to return only secondary calendars owned by the organization. This allows administrators to programmatically monitor the ownership status of users' secondary calendars and make necessary adjustments in preparation for upcoming secondary calendar data lifecycle changes.
Release: Both • Rapid: 2026-07-06 • Scheduled: 2026-07-06 -
2026-06-18Comms & Meetings
New Calendar API endpoint for programmatically transferring secondary calendar ownership.
Google is introducing a new endpoint in the Calendar API that allows administrators to programmatically transfer the ownership of secondary calendars between users in the same organization. This functionality mirrors the Admin console's data transfer feature but provides greater flexibility by allowing administrators to transfer specific, individual secondary calendars without requiring recipient confirmation or sending emails.
Release: Both • Rapid: 2026-06-18 • Scheduled: 2026-06-18 -
2026-06-17Comms & Meetings
Google Calendar is expanding event coloring options to include up to 200 custom colors.
Google Calendar is increasing its event coloring options beyond the previous 11 predefined colors. Users can now choose from 24 default colors or define their own using an RGB color picker on the web and via the Calendar API, allowing for up to 200 custom colors for individual events across web and mobile apps.
Release: Both • Rapid: 2026-06-17 • Scheduled: 2026-06-29 -
2026-06-03Comms & Meetings
Data loss prevention (DLP) policies for Google Calendar are now generally available.
Google Calendar now supports Data Loss Prevention (DLP) policies, allowing administrators to protect sensitive information shared within event titles, descriptions, and locations. Admins can configure rules to audit, warn, or block the creation and updating of events containing sensitive data, such as credit card or national identification numbers. Users receive immediate feedback via pop-up notifications on the web or automated emails on mobile and API updates when a policy is violated.
Release: Both • Rapid: 2026-06-03 • Scheduled: 2026-06-03 -
2026-04-07Comms & Meetings
Non-Google users can now book Google Workspace resources directly from their preferred calendar service.
An open beta is being introduced allowing non-Google users, including those on Microsoft Outlook, to book Google Workspace resources such as rooms or equipment directly from their preferred calendar system. Admins can grant specific non-Google users or entire domains booking permissions via the Admin Console. Once configured, non-Google users can reserve resources by simply adding the resource's email address to their calendar event guest list.
Release: Both • Rapid: 2026-04-07 • Scheduled: 2026-04-07 -
2026-04-07Comms & Meetings
Non-Google users can now book Google Workspace resources from their preferred calendar services.
Google Workspace is introducing an open beta that allows non-Google users, such as those using Microsoft Outlook, to book shared resources like rooms, projectors, or company cars directly from their own calendar service. Admins can grant booking permissions to specific non-Google users or entire domains via the Admin Console. Once configured, non-Google users can reserve a resource by adding its email address to a calendar event guest list. Additionally, for organizations using Microsoft Outlook, admins can configure Calendar Interop to allow Outlook users to find resources by name and view availability before sending an invite.
Release: Both • Rapid: 2026-04-07 • Scheduled: 2026-04-07 -
2026-03-30Comms & Meetings
Secondary calendar lifecycle changes for personal Google accounts.
For users with personal Google accounts, the secondary calendar lifecycle changes—where secondary calendars are permanently deleted upon the deletion of the owner's account—will take effect starting April 27, 2026.
Release: Both • Rapid: 2026-04-27 • Scheduled: 2026-04-27 -
2026-03-30Comms & Meetings
Postponed enforcement date for secondary calendar lifecycle changes for non-personal Workspace accounts.
The enforcement date for secondary calendar lifecycle changes for non-personal Workspace accounts has been moved to October 5, 2026. From this date, secondary calendars will be permanently deleted when the owner's account is deleted, and the current process of auto-assigning orphan calendars to users with management access will stop.
Release: Both • Rapid: 2026-10-05 • Scheduled: 2026-10-05 -
2026-03-30Comms & Meetings
New API endpoint to programmatically transfer secondary calendar ownership.
Google is introducing a new endpoint in the Calendar API that allows developers with Calendar administrator privileges to programmatically transfer the ownership of secondary calendars within the same organization. This new capability mirrors the existing Admin console functionality and provides additional flexibility to transfer individual calendars.
Release: Both • Rapid: 2026-06-01 • Scheduled: 2026-06-01