Your Logbook aircraft will not be impacted and all data will transition seamlessly. Prior to the 10.4.3 update, your Logbook Aircraft should look like this:
After the 10.4.3 update, a new field, called Equipment Type, will be available, prepopulated with “Aircraft”:
The Equipment Type field will allow you to select between Aircraft, Full Flight Simulator (FFS), Flight Training Device (FTD), Basic Aircraft Training Device (BATD), or Advanced Aviation Training Device (AATD). As long as nothing has changed with your Aircraft, you should not need to change any fields.
If you have a Simulator that you need to update, check our Support Center article (hyperlink) on how to seamlessly update your Simulator.