Google Analytics supports a new set of page tagging best practices. Your old tags will continue to work. However, we recommend that you update to the new tags so that you can take advantage of the most up-to-date tracking functionality as it is added to Google Analytics. Some benefits include:
- Faster, smaller source file
- Automatic detection of HTTPS
- Increased namespace safety
- More convenient set up for tracking ecommerce transactions
- More customizable code for interactive Ajax-based sites
- Enjoying new features and reports as they roll out
Please note that if you do choose to update your site to the new tags, you will need to update all your pages because the old tracking code and the new tracking code are not compatible.