Google Analytics Tracker Code Change

from Google Blogscoped
There is no specific immediate need to do this, but if you are using Google Analytics for your traffic tracking, Google asks you to update the tracker script.

The old code will still work though for at least another year, according to Google. Google says they “recommend you use for all new accounts and new profiles for new domains. … This will allow you to take advantage of the most up-to-date tracking functionality as it is added to Google Analytics.” (A migration guide in PDF format explains more.)