• New frozen rule format available for Property Manager users: v2025-04-29.
• The Early Data (0-RTT) Advanced behavior is now enhanced with the Supported HTTP Methods option that lists all HTTP methods supported in Early Data.
• Now you can use variables in the cookie name and the value fields in the Request Cookie behavior.
• We update the HTTP Strict Transport Security (HSTS) behavior to support the ‘2 years’ option in the Max age field.
• We decommission the IBM Tealeaf Connector behavior.
• Now the Origin Server behavior supports 9443 as the valid HTTPS port.

We're pleased to introduce a new validation capability for Default certificates in General Availability. Now you can validate your Default certificates using HTTP and DNS TXT records, bringing additional flexibility to certificate management workflows.

• New frozen rule format available for Property Manager users: v2025-03-24.
• The Cache ID Modification behavior is now available in the Advanced Cache Optimization module for Adaptive Media Delivery, Download Delivery, and Object Delivery. Note that for AMD, Property Manager displays an error when the Cache ID Modification behavior is added and the property is configured with MSL Origin or the property has the Watermarking behavior enabled.
• General Availability release of the mTLS Edge Server to Origin behavior. With this behavior enabled, you can configure your delivery property to establish an mTLS connection between the edge server and the origin to authenticate requests. This ensures that the requests to your origin server come directly from the Akamai network.
• Now the CORS Protocol Support behavior supports also the HEAD method.
• We clarify that the Enforce mTLS settings behavior only checks the Certificate Provisioning System settings. It doesn't check the current client certificate and doesn't deny invalid certs.

Property Manager now supports dynamic rule updates in General Availability.

• New frozen rule format available for Property Manager users: v2025-02-18.
• New Early Data (0-RTT) Advanced behavior. It expands the capabilities of Early Data (0-RTT) by adding support for URLs with query string parameters. This behavior is optional and requires an additional module added to your contract. To enable it, contact your Akamai representative.
• Edge IP Binding is now supported with HTTP/3.
• Now you can enable the Cache+ feature for Image and Video Manager. The Image and Video Manger (Images) behavior includes the list of CloudWrapper regions for storing derivative images, including a filter for which images to store to the CloudWrapper regions. Learn more about adding the Image and Video Manager (Images) behavior.
• To comply with best practices, the responses to the OPTIONS requests are no longer cacheable in Akamai. If you only need the OPTIONS support to enable the CORS preflight functionality, use the CORS Protocol Support behavior in Property Manager. It automatically handles the OPTIONS requests and returns responses directly from Akamai. If you need to support the OPTIONS requests at your origin, contact your Akamai representative to determine the solution.

• New frozen rule format available for Property Manager users: v2025-01-13.
• The Origin Characteristics behavior is enhanced to support the Sort Query Parameters, Encode Query Parameters, and Encode Equals options.
• The new Brotli Compression feature will soon replace the Resource Optimizer feature. Consider migrating at your earliest convenience. Learn more about using Brotli Compression.
• IPv6 Origin Support in the Origin Server behavior changes its name to Origin IP Version. Also the updated validation requires adding the originIpAcl behavior to the same rule or a parent rule when using IPv6-Only or Dual Stack and the Origin IP Access Control List feature.
• We have updated some options' names in the mediaOriginFailover behavior with the latest rule format and in the mediaOriginFailover behavior with the v2025-01-13 rule format. Update the options' names if not done by the upgrade functionality.

Property Manager now supports dynamic rule updates.

The Early Data (0-RTT) behavior now supports both QUIC-based traffic and Transmission Control Protocol (TCP).

The Early Data (0-RTT) behavior now only supports the QUIC protocol.

• New frozen rule format available for Property Manager users: v2024-10-21.
• The Origin Characteristics behavior is enhanced to support Object Delivery, Download Delivery, API Acceleration, Dynamic Site Acceleration, and Ion products.