Some time within the next few weeks, the forum software will be upgraded to the new version. Everything that you do day-to-day on here should remain the same, but there will be some significant new features available in addition.
You can read the new features thread here if you are feeling adventurous:
vBulletin 3.7 First Look! - vBulletin Community Forum
The main additions that will us interest are:
1. Improved profile pages - You have the opportunity to assist anyone stealing your identity by providing personal information to the world.
2. Thread tagging - this should assist searching. Every time you post a new substantive thread, include some keywords and names in the tags to help people find similar threads.
3. Social Groups - like on Facebook, you will be able to create your own groups for other people to join, such as "Stop ID Cards" and "I love Global Warming" etc.
We don't yet know how well implemented these functions are, so they could be a big disappointment.