The Google Analytics team announced the release of the asynchronous tracking tag last month (released from beta); providing users with a much faster implementation of Google Analytics. The new admin interface provides users with the code they need, whether they are tracking one or multiple sites.
Google Analytics will provide users with the new tags by default, but users can still access the legacy code implementations. The Google Analytics team is recommending that users upgrade their current implementations to utilize the new tags and have provided a full suite of instructions and examples. (via Google Analytics Blog)
