I have bitaddress 6.2 saved on a USB unused from 2 months ago, is it safe to use for creating BIP38 encrypted paper wallets or is it pretty updated since they have release 2 new versions since then? what are the new update differences anyways? I'll be storing lots of bitcoins on these paper wallets and it would be generated offline on Ubuntu 13.10 off EPI booting a USB is that all safe and secure? or is there a possibility of this saving into the hard drive memory even if your "trying Ubuntu" on the new MacBook retina pros that use a different type of hard drive? P.S I just bought this MacBook pro so it has NEVER ever been connected to a internet connection yet, just created the USB on my old MacBook off ubuntu