5e Races (and backgrounds) to 2024?

I'm trying to create characters for a family one-shot and I'm trying to give them as many character options as possible. I have the Player's Handbook 2024 Edition, Monsters of the Multiverse, and Humblewood. I'm trying to make the races/species (and backgrounds) in the latter two be compatible with the 2024 Handbook. What would be an easy way to do this? 

Thanks a lot! Should I remove the ability score increase for the species? I also think that the older species have more traits than the newer one.