Starting now, you can log and calculate metrics and dimensions you may know from Reporting, using new and existing data sets supported by DataStream 2.

• Starting now, you can choose an S3-compatible endpoint as the destination to send log data in the DataStream application and the DataStream 2 API. See Stream logs to an S3-compatible destination in the user guide for details.
• We have introduced the Uploads/Errors metric to the DataStream dashboard. You can use it to check the number log files DataStream uploaded to the configured destination over the last 24 hours.
• You can log the new Time to first byte data field from the Network performance data data set for better insights into the traffic on your property. See Data set parameters for the complete list of data set fields currently available in DataStream 2.
• When choosing the log format in DataStream 2, you can now choose Tab as the delimiter for the Structured logs format (previously only space was available). 

You can now view new metrics, such as destination type and the number of data sets logged in each stream in the DataStream dashboard. See View and manage versions in the user guide for details.

You can choose the new Asnum field from the Network performance data data set to log the Autonomous System Number (ASN) of the request's internet service provider (ISP). See Data set parameters for the complete list of data set fields available in DataStream 2.

When streaming logs to Elasticsearch, you can now store them in a cluster with a dynamic index name based on the date and time DataStream creates the index and uploads log files.

• The maximum Custom Log Field size is now 1000 bytes (previously 128). See Log custom parameters in the user guide for details.

• Now you can choose new data set fields with metrics related to Content protection information and Enhanced Proxy Detector. Use the new Edge attempts and File size bucket fields to track attempts to download content from the edge, and log response data. Check the full list of the Data set parameters you can log in the DataStream user guide.

You can now configure multiple streams with different destinations for the same Akamai property using the DataStream behavior in Property Manager.

• You can now use minutes (%M) and seconds (%S) as dynamic variables in log file and folder names. See Dynamic variables in the DataStream user guide for details.

• New data set fields added to support Common Media Client Data logging and Brotli compression. Go to Data set parameters in the DataStream guide for the list of available data fields.

The Cacheable data set field is now available for all products supported by DataStream 2. You can log it to check if the content is cacheable, and combine with other data set fields to get detailed data on caching.

The Breadcrumbs data set field is now available to log for the Dynamic Site Accelerator, Ion Standard, and API Acceleration products.