TTN Node Firmware 1.0.5

Hello everyone,
Followed this guide: HowTo: Update RN2483 Firmware on 'The Things Node' to try and upgrade the firmware on my node. Thanks to the Microchip utility I discovered my node was on 1.0.4. There is 1.0.5 version available but there are two hex files in the zip, one in a folder named ‘combined’ and another in a folder named ‘offset’. If I was to try and upgrade to 1.0.5, which should I use?