upgrade from 6.0.10 to 6.0.20 and retain conf and webapps.

[g f]

Hello all,
I searched the tc website and google and havent had much luck finding info
on minor upgrades...most posts pertain to major (5.5 to 6.0 etc.)
I was wondering if it was possible to just overwrite the bin and the lib
directory in order to accomplish this upgrade?
Thanks in advance!