Should I update from build number voles-userdebug?

[jaksjerky]

Hi fairly new here but did update my phone awhile age and need som help. I have -
Version-2.2
Baseband version -c_01.3e.03p
Kernal version -2.6.32.9
p3droid@mydroidworld#1
build number - vloes-userdebug 2.2 FRFxx 49593 test-keys

Should I do a new update?
Which one?
How?

Thanks a bunch!