Oracle Release upgrade from 11.2.0.3 to 11.2.0.4

Hi

I'm planning to upgrade existing oracle 11.2.0.3 to 11.2.0.4 on windows 2012, Kindly help on the procedure I have read the upgrade guide .

But need confirmation before starting the upgrade .

1) Took backup of the current oracle home backup & Oracle inventory

2)changed the Oracle_home and TNS_ADMIN env pramaeter

3) Install the new oracle software i.e. 11.2.0.4 ( select install database software only or upgrade existing database )

4) From new home we need to execute the dbua

5) Perform post activities.

Do let me know if  have missed any steps.