Is it necessary to update firmware incrementally?

Hi, i have a 4167b that came with firmware version DL10, and the latest is DL12.
Should i first update to DL11 then to DL12, or is it enough to update straight to DL12? Is there any difference?

Also, the setup instructions suggest using the LG ODD online f/w update tool. Is it really worth using this program?

Thanks.

Download DL12 and update.

No need for online f/w update

Thank you.