Announcing the addition of External AWS S3 Storage Support for Voice Recordings allows customers to store their voice recordings in their own AWS S3 bucket, providing additional security and compliance measures. This feature can be enabled by specifying an AWS S3 bucket URL and credentials within the Twilio Console. When external storage is active, Twilio will not store or keep media files associated with a recording in the cloud, and it's the customer's responsibility to manage the security and lifecycle of their recorded content. The feature includes considerations such as retry mechanisms for failed uploads, deletion of recordings due to fatal errors, and updated metadata for the recording resource.