Doubt about Firmware

Hi guys, i need help. I have a LG GSA 4120B, and i need update my firmware. I saw that have 4 firmwares version, .I need use all of them, or the last one eliminate the use of the other one’s?

Thanks…

ONly the latest available and make sure it’s the right one for your drive model.

Thanks Chef… Ill take the 115 firmware, …the 117 isnt there in the lg site yet…

Thnks