New features:

• Manifest Personalization (“MPer”) for DASH. With the increasing demand for online content, you may be challenged to deliver even more when network and bandwidth capacity are limited. To help, you can include MPer with AMD to limit or restrict the maximum bit rate for DASH content served to your customers. See the Adaptive Media Delivery Implementation Guide for details.

New Feature: 

• Quick Retry: Quick retry detects slow forward throughput while fetching a streaming media object and attempts a different forward connection path to try to avoid congestion. This behavior is added automatically to any new AMD property and is available for addition to an existing one. For complete details on how to configure Quick Retry, see the AMD - Implementation Guide.

Enhancement:

• Selective application of “SameSite” cookie attributes.  We recently enhanced the AMD Cookie-based Token Authentication functionality to maintain compatibility with Google’s updates to their SameSite Cookie attribute, with Chrome version 80 and later. With this new change, Akamai is more selective when explicitly setting the “SameSite=None” and “Secure” attributes for token cookies. Akamai identifies cross-site requests by looking for the presence of the “Origin” header and sets the “SameSite=None” and “Secure” attributes only if this request header is present.

Enhancement:

• Support for Google Chrome’s changes regarding “SameSite” cookie attributes.  We’ve enhanced the AMD Cookie-based Token Authentication functionality to maintain compatibility with Google’s updates to their SameSite Cookie attribute with Chrome version 80 and later. With this change, Akamai explicitly sets the SameSite attribute for token cookies to use the values “None” and “Secure.” This allows the applicable cookie token to be sent to Akamai without playback interruption when using Chrome. For non-secure (HTTP) traffic, there is no change to how the session token is set in a cookie.

Bug Fix:

Chunked Transfer Encoding for Uncompressed content requests: With this release, we fixed an issue that caused playback issues with any device that requested uncompressed content, typically manifests and text subtitle files larger than 32 KB in size. This content is now delivered using chunked transfer encoding to clients which prevents playback issues. You might have experienced this issue if all the following conditions existed:

• Your AMD property configuration was created or modified after November 8th, 2019.
• Video on Demand (VOD) is the configured delivery mode.

For more information, contact your Akamai account representative.

New Features:

• Origin Failover for AMD: This lets you configure an Origin Failure Recovery Policy for AMD to recognize certain errors and connection timeout situations as failure scenarios. You also configure associated Origin Failure Recovery Methods to address the different failure scenarios. A recovery method can either redirect a failed request to a backup origin or return a custom HTTP status code to the end-user. Origin Failover use is covered in the AMD - Implementation Guide.
• Mixed Mode Configuration for AMD: This lets you apply the various use case-based behaviors (Client Characteristics, Content Characteristics, Origin Characteristics, and Segmented Media Delivery Mode) outside the default rule in an AMD property configuration. This way, you can define different match criteria for different instances of these behaviors, in order to optimize delivery for unique use cases. Instructions on its use are covered in Mixed Mode Configuration for AMD.

Enhancements:

• Support for Origin-assist Prefetching for Azure URLs: We have incorporated metadata changes to support Azure URLs for HLS and DASH format media. Currently, CMAF format manifests and manifests that have KEY frames are not supported. (A DOS does not occur for these formats, they are just not supported. Content is still fetched, just not in prefetch mode.)

New features:

• Edge IP Binding Traffic Separation. You can enable ASN-based splitting of customer traffic for Edge IP Bound targets. Work with your Akamai representative to incorporate the creation of a Global Traffic Management (GTM) property as part of your configuration workflow to send only zone rate balancing (ZRB) autonomous system numbers (ASN) to the BRAVE network to prevent an increase to latency for non-ZRB traffic.

New Features:

• Origin Assisted Prefetching: Prefetching positions your HLS live and on-demand objects at the Edge to ready them for requests and reduces the overall time for delivery. To implement this, we now offer the Segmented Media Streaming - Prefetch behavior in Property Manager, which relies on the “origin assist” prefetch model–your origin needs to be set up to send details on the objects that need to be prefetched, in its response.

Bug Fixes:

• Denial for certain unauthorized ServerIP Requests: We’ve fixed a bug that prevented denial of ServerIP requests, even though other requests from a related client were denied by AMD’s Enhanced Proxy Detection or the Content Targeting functionalities. These associated ServerIP requests are now denied as expected in such cases.

New Features:

• Protocol Downgrade supports the OPTIONS request/method: In addition to the HTTP, GET, and HEAD request/method formats, you can also use OPTIONS with the Protocol Downgrade feature.

Fixes/Changes:

Files using the extension “m4i” are now recognized as DASH “init” segments, and their Content-Type is set as “video/mp4.” Prior to this change, files using the “m4i” extension were treated as an “unknown” stream format.