What's the difference between the two OA 1.54 update files?

[msy 22]

There are 2 1.54 update file in ARMA2 official website. I have downloaded the earlier update file whose size is 189MB and successfully installed. Today I enter the website and find another 1.54 update file which has size of 218MB, updated on 8/27.

I want to know what is the difference beteewn the two files? If the later one is to resolve the mission_e.pbo problem?

http://www.arma2.com/supply/game-updates/folder.html?lang=en

[ck-claw 1]

If the later one is to resolve the mission_e.pbo problem?

Thats the only reason i can think of?

[msy 22]

I have download them both and installed the later one too. It seems to have mission_e content.

[thr0tt 12]

Does one need this if I didn't come up with the error during install ? Should I download the 'newer' 1.54 or just the mission_e pbo from the link or both ?

I do enjoy cryptic BIS releases.