I don't want it anyways. Don't think it's an improvement.
Posted via CB10
It depends on which OS you are on, and which upgrade you are referring to. I'm on 10.3.2.2813 and I can say it is an improvement over every build I have used thus far. I also tried 10.3.2.2876 and had issues. Other than the known Android runtime issue regarding deleting Android apps, which I fixed by side loading the 2813 runtime, the phone had other issues for me, sorry to say I have forgotten the majority of them. I prefer 2813.
If I were you, I would back up the phone using Link, and install 2813 via Sachesi. It is easy and you will see for yourself if it is worth upgrading. I can seriously say it is much smoother, and much faster overall, including Android apps.