So, ultimately, to keep up with the MacBook, I’m going to need to get the new 64 bit version. Is that correct? I’m using the 2016 UltraPak, thinking of upgrading to the same equivalent.

How much space is this upgrade going to take? I only have 150gb left.

Would there be any need to keep the 32 bit version? Are any of its files still useful for the 64 bit upgrade? Sorry, I don’t understand how this all works. I thought the upgrade would extract what is no longer needed and replace with the new.