updating software and space..?

Question

iTunes is offering to install an update on my computer, which it says is 60 megabytes in size.
Lets say the version I already have installed is 100mb, if I update, will the itunes now take up 160mb, or will the extra 60 just replace old/used space ??

Answer 1

When updating software the update will scan and remove previous un-wanted or changes throughout the update, and then it replaces the old with the new.
So sometimes it can be a little confusing when you think you are downloading an update when in fact 3/4 of it may already be in the previous version and not needed at all.
Don