My update:
I had already exported my wallet JSON file to a USB drive before upgrading to the 4.10 version. I downloaded and installed version 4.10 and ran the file. It got hung up on "reindexing.....Will take a few minutes". I went to task manager to get out of it and I waited about 1-2 minutes to restart it. I restarted version 4.10 and it worked fine and I was able to log in to my new 4.10 wallet. When the wallet started syncing, I initially got worried when I saw a zero balance in my wallet but the wallet was synching starting from about when it said "Last Block was synced 42d (days) ago". As of this post, it is now at "Last Block was synced 1d 15h 2m 10s ago" but I did experience a crash. I went to task manager and get out of it and I restarted the wallet. After I restarted the wallet, it resumed the syncing and it is almost finished.
I want to state the as the wallet was syncing, I was able to get my BTSX and BitUSD balances back to what they were before I upgraded my wallet and I did not have to import my JSON wallet at all. My conclusion to all of this is this: When the wallet begins to sync, it will show a zero balance but once it finishes syncing, then it should have your current balance.
I will repeat: The wallet did finish syncing and it shows my exact BTSX and BitUSD balances and it also shows all of the transactions that I made since I got started in Bitshares X. That is my report for the time being.