We have a problem:

Since Alpha GP an Rally Cross has got new courses added to them what will we do?

With the new courses in each category it's IMPOSSIBLE to beat the WRs before them so we have to do something

My option? We can do a new category called (for example) Rally Cross and then change the Rally Cross category before and change its name to "Rally Cross (Pre-DemoDerby)" then the runs done before the update have their own leaderboard and the new ones can give a opportunity for new records

No, just use latest patch as the legitimate patch and internally call the runs made using previous patches as obsolete. We cannot do much anyway until the "final" patch is not out.

You can filter by patch on speedrun.com.

For your personal videos you can just use like "Gator Rush Patch" etc in the title if it is not visible on the video itself.