The short answer is I was forced to upgrade OahuRE.com because the operating system of the server I was on was no longer being supported.
If you want some more detail, you can continue reading.
When I tried the current code on the new server with a new version of PHP, nothing worked. I started to debug it but found it was too complicated and realized it would be easier to do something from scratch than fix all the issues caused by the upgrade.
I had to remove many of the older searches because they were done over the last twenty years, and I don't have enough time to upgrade everything I have done over the last twenty years.
There are two improvements the new OahuRE.com website offers.
One is speed. I am on a new, faster server with a more robust operating system, and I noticed search results come back faster.
Two is that I have all the possible search options on one page. Many times, people could not find the search they needed and asked me about it. It was not that it was not available; it was just hard to find because not all search options were on one page, but now they are.
I also changed the structure of OahuRE to make it easier to upgrade in the future and more straightforward to add new searches if someone has a search request that is not already available.
Thanks for using OahuRE.com. If you run into any issues or cannot perform any searches, please let me know.