Many have noticed and started using new features that are cropping-up as Don upgrades the software and user interface. I have no details - Don will be posting some commentary as time allows, so stay tuned.
One new Search feature, noticed by some, involves Tags. I am still experimenting with these myself. These should make the results of searches have more long-lasting relevance, and usefulness.
wrt "Tags", you will notice a window at the bottom of new posts, where you can choose to enter words of relevance. The choosing is not required, and would be most useful if not overused. Enter "Tags" for topical terms that may not be the main subject of the post/thread. This will improve cross-referencing for future searches as we all continue contributing to this growing database.