Tag Manager Release Notes
Last updated: Feb 18, 2026
- Feb 4, 2026
- Date parsed from source:Feb 4, 2026
- First seen by Releasebot:Feb 18, 2026
February 4, 2026
Google Ads will help advertisers measure more effectively and gain deeper insights with less manual configuration, by automatically collecting a broader range of event data from their websites. Advertisers may notice additional network requests to Google domains when these events are transmitted.
Original source Report a problem - Jan 29, 2026
- Date parsed from source:Jan 29, 2026
- First seen by Releasebot:Feb 18, 2026
January 29, 2026
This release introduces a new option to configure Google tag gateway for advertisers using Akamai as your content delivery network (CDN). This integration gives you greater control over your data, improving the accuracy of your Google Analytics reporting and driving conversions uplift. Learn more about setting up Google tag gateway for advertisers with Akamai.
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- Jan 5, 2026
- Date parsed from source:Jan 5, 2026
- First seen by Releasebot:Feb 18, 2026
January 5, 2026
Release notes
This release introduces a new workflow for Google tag gateway for advertisers, allowing you to leverage Google Cloud Platform’s Global external Application Load Balancer. This "one-click" integration directly in GTM and Google tag settings, streamlines deployment and configures your Google tag and tag containers to send data through your first-party web infrastructure before it is relayed to Google, helping to improve data signal quality.
Original source Report a problem - Dec 11, 2025
- Date parsed from source:Dec 11, 2025
- First seen by Releasebot:Feb 18, 2026
December 11, 2025
Google Tag Manager now includes three new built-in variables in the Utilities category: Client ID, Session ID, and Session Number. This launch introduces an officially supported method to retrieve these values directly in Google Tag Manager.
For advanced configurations, a new Analytics Storage user-defined variable type is available, which supports specifying a measurement ID and/or a custom cookie prefix.
Original source Report a problem - Sep 30, 2025
- Date parsed from source:Sep 30, 2025
- First seen by Releasebot:Feb 18, 2026
September 30, 2025
Google Tag Manager
Google Tag Manager now displays the active status of your Google tag gateway setup. This status is visible regardless of the configuration method, whether you set it up manually or through your content delivery network like Cloudflare.
Original source Report a problem - Aug 1, 2025
- Date parsed from source:Aug 1, 2025
- First seen by Releasebot:Feb 18, 2026
August 1, 2025
New readAnalyticsStorage sandbox API ships for Tag Manager to safely read client and session IDs in custom templates. It replaces fragile reverse engineering of Google Analytics cookie formats and shields dashboards from breakage when Google updates cookies. Learn more about Custom template APIs.
readAnalyticsStorage sandbox API
The readAnalyticsStorage sandbox API is now available. This client-side JavaScript API allows developers to read client and session IDs in a custom template. Previously, developers relied on reverse-engineering or custom parsers to understand Google-set cookie formats, which wasn't a reliable approach. It was prone to breaking whenever Google Analytics updated its cookie formats.
Now, the readAnalyticsStorage API allows Tag Manager users to safely read the necessary cookie parts, future-proofing their approach and preventing interruptions from format updates. Learn more about Custom template APIs.
Original source Report a problem - Jul 31, 2025
- Date parsed from source:Jul 31, 2025
- First seen by Releasebot:Feb 18, 2026
July 31, 2025
New cart data parameters in Floodlight Sales tags let you pass Merchant ID, Feed Label, and Language to distinguish items and feeds, aligning with Google Ads conversion tracking. Learn more about setting up conversions with cart data.
Conversion parameters for Floodlight Sales tags
- Merchant ID: The Google Merchant Center ID of the retailer.
- Merchant Feed Label: A label identifying the specific feed used within Google Merchant Center.
- Merchant Feed Language: The language of the feed, represented using the 2-letter ISO 639-1 code.
These parameters will be passed within the Floodlight tag's URL as mid, fcntr, and flng respectively. The data sent through these parameters can be used to distinguish the item_id from other product feeds and merchants. This approach mirrors the implementation currently used by Google Ads conversion tracking and offline Floodlight conversions. Learn more about setting up conversions with cart data.
Original source Report a problem - Jul 28, 2025
- Date parsed from source:Jul 28, 2025
- First seen by Releasebot:Feb 18, 2026
July 28, 2025
To enhance the accuracy of modeled conversions, Floodlight tags in server-side Tag Manager will now start transmitting unconsented requests server-to-server.
Original source Report a problem - Jun 30, 2025
- Date parsed from source:Jun 30, 2025
- First seen by Releasebot:Feb 18, 2026
June 30, 2025
Now serve ALL your scripts (for example, gtag.js and gtm.js) with the web container client. The Google Analytics client no longer supports dependency serving for Google scripts. Tagging servers with existing clients using dependency serving will not be impacted by this change. Learn more.
Original source Report a problem - Jun 24, 2025
- Date parsed from source:Jun 24, 2025
- First seen by Releasebot:Feb 18, 2026
June 24, 2025
Pause and delete buttons have been merged into the delete functionality, allowing customers to now rollback their Google tag gateway for advertisers setup with Cloudflare.
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