Today I updated two bits of internet software: I'm now using Internet Explorer 7.0 and Blogger Beta.
So far, nothing bad has happened as a result of either upgrade. IE 7.0 looks a little different from 6.0, but it adds "tabbed browsing", which is pretty meaningless to me - I'm fine with having multiple IE windows open simultaneously, but perhaps tabs take fewer computer resources. Blogger Beta is similarly unremarkable, though soon I plan to mess around with template options, add labels to all old posts (I've only got 160 or so, no problemo), and put those labels into an updated sidebar.
Exactly what I needed: an excuse to mess around on the 'net with some software.