As they stated the BIOS is accumulative meaning that the latest will have all the fixes and updates from the older ones.
There is a catch, sometimes when the BIOS version that you have is really old like the one that you have you may want to update it in steps like for example to the 57 and then to the latest one.
When you update the BIOS there are several methods, one may work better than another for different situations. I usually prefer to use the BIOS recovery when updating from such older versions or when doing big jumps in versions.
You can find the instructions at the following web site: