As it has become tradition with the new Netflix show I watched first three before I was ready to write anything. The first thing I noticed was the minor changes and then major ones started appearing. If you haven't read the books and you don't have OCD, don't worry about the fact you'll learn more about Kovacs time in the Envoy Core than readers ever got to learn in first time. Richard K Morgan saved all that stuff to book 2. Most of what we got in the Book 1 was a couple scene with Quellchrist Falconer, explaining the important bits so that you could get on with the story.
I guess they needed to show the whole thing because otherwise Kovacs almost supernatural talents are unexplained. The minor changes are with the world and how the certain scene were written, like the introduction to Bancrofts palace. I, for one, cannot erase the tennis scene that Mister Morgan used to introduce Miriam, Laurens and some other minor family members. The thing that you miss in that is the fact that Miriam, unlike Laurens actually does something with her sleeve to keep it in excellent shape. She's not wearing it just for the show.
Well, maybe to lure some fleeting minds to admire her but when you're in that sort of position, you would most likely want people worshipping you "for being perfect." It also makes clear that Laurens doesn't have the same mindset. He doesn't really care for being so rich that he can own his own facilities where his backup sleeves are stored. So, in that sense the murder of Laurens Bancroft doesn't make much sense.
Only later on when you start to realise how bad boy he has been do you get a sense that someone might have tried to get away with him, but even then cocking up the backup facility is something the murderer missed. Which leaves the murder two possibilities, one, the murderer didn't failed to study the most important details or two, Laurens tried to kill himself but someone failed to stop the process of resleeving.
But, what that is the salt in this story, as Kovacs doesn't track down the perp straight away. Instead, like he says, "I'm going to discover some ugly truths, some you might not want to be discovered. It's a nasty business but, I'm going to do it any ways." And that leads to the business of learning on how the Altered Carbon world works. The thing Richard never explained was the Needle Cast.
Even though the TV shows depicts this process being Faster-Than-Light, it isn't. Instead the whole thing goes around the signal strength as the needle cast is a very powerful broadcast that is pinpointed in the vast canvas of space. In other words its a very direct, very narrow and very powerful signal that is used to carry the information between the star systems without losing its contents. Most often this transmission is used to carry the stack information so that the people can get download into new sleeves at their destinations. During that process you would lose years while the transmission travels from A to B and in theory, you could lose your life if something happened to the destination world in the meantime. Therefore, a lot of that time Kovacs spent in ice, could be down to the fact that his data was travelling from Harker's world to Earth.
Although you might read this as a complaining, it isn't because I love this show almost as much as I love the actual books. I never thought this series would happen so soon, because certain people has hammered into me that the Cyberpunks is dead. Is it?