i wanna know which is newer
can i install 10J3210 in my 2010 mbp ?
10J3210 is the newer build.
You can install 10J3210 in your 2010 mbp, but only if you have a 2011 mbp. You'll have to run your 2010 as a target disk and use the 2011 to install the OS onto the target disk, at least that's how I did it.