Amazon CloudFront now supports invalidation by cache tag

Amazon CloudFront now allows you to invalidate cached objects by cache tag, enabling you to remove groups of related content from CloudFront edge locations with a single invalidation request. Cache tag invalidation simplifies common operational workflows such as updating product information across multiple pages, managing legal takedown requests, handling regulatory compliance requests, and refreshing content across multi-tenant platforms. Previously, invalidating related objects that didn't share a common URL path required tracking individual URLs or using broad wildcard patterns that could unnecessarily clear unrelated content. With invalidation by cache tag, developers and site reliability engineers can tag cached objects when returning an object by including a specified header in HTTP responses with comma-separated tag values. When needed, they can invalidate all objects sharing a tag in one request, maintaining high cache hit ratios while ensuring end users see fresh content within seconds. You can configure the header name through the Amazon CloudFront console, AWS CLI, or API, and assign multiple tags per object for flexible, precise cache management. Over the years, CloudFront has made improvements to propagation times. Currently, invalidations take effect in under 5 seconds at P95\. The end-to-end completion time, which includes reporting the invalidation status back, is under 25 seconds at P95. Amazon CloudFront invalidation by cache tag is available in all AWS Regions where CloudFront is offered except China (Beijing, operated by Sinnet) and China (Ningxia, operated by NWCD). To learn more, view the [Invalidations By Cache Tag documentation](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/invalidation-by-tags.html). Each cache tag is priced as one path. For details on pricing, refer to the [CloudFront pricing page](https://aws.amazon.com/cloudfront/pricing/).