My droid Bionic is currently rooted running version 5.5.893. I've been looking around the forums, and have seen a lot of people running 5.6.893 or even 5.7. I just wanted to know, what's the difference between the 5.5, 5.6, and 5.7 versions of .893? Are they custom? Would it be a good idea for me to flash these updates? Sorry for asking dumb questions, I'm somewhat new to the whole android modding thing. Thanks!