Was wondering because I plan on running the game on ps4 and would love a place to put the runs at.

Would hope there is a subcategory for it upon first submission of the new ports. "N64" and "2020" as their own subcategories in each category and IL would be a good thing for the board.

None of the Super Shotgun clips will work on 2020 version.
'autopilot' tech is lost in 2020 port. (Slower movement)
Credits warp takes you to the main menu in 2020 port.

For credits warp, you technically don't manually quit the game at all. A run in the 2020 port still matches criteria with the way the rules are written currently for a warp run. The new port just loads into the main menu, rather then playing the credits. It would be a slower run regardless, without faster movement and shotgun clipping available.

2020 port is a more inviting version of the game to speedrun for new players imo. A heck of a lot easier to see stuff also with the enhanced brightness options!

I see. Yes separating the N64 and 2020 port would be best. I would also love a "Watch Me Die" Max category as well like a UV Max category as i have in the past routed a few levels in 64 to meet the criteria.

And yes for sure for someone like me having PS4 capture is way accessible to an N64 capture. I hope that they are added soon.