I was just thinking about this. Why would Apple, of all companies, want to update their operating system in patches 6.1, 6.1.1, etc)? They tediously want to be perfect, yet have had a lot of exploits lately. Even things like improving battery life is done in an update. Shouldn't it be perfect before release?
Perfection is an illusion.
If an OS was perfect, it would be perfect for all time and ages. It would never need to be replaced and be fully self adaptive for computers now and to come.
The only way for this to happen if it actually got sent back in time from the end of the collective universes as we know it. Even this, time travel is debatable in terms of possibilities.