Interesting... This is the same version as my software, which is dated 7/2. System update is telling me that it's up to date.
I'll look for the source that has this dated 8/7/14.
EDIT:
Here's what I was talking about as for an 8/7/2014 Update (see last line of post):
CyanogenMod 11S | OnePlus One | XDA Forum
Could just be a note regarding the latest update to the OP,but,the way it's formatted,it appears it's describing the build date.
My thoughts were the same when viewing SETTINGS > ABOUT PHONE,seeing what you're seeing,a July Build date.
I could be mistaken,as I've been modding/ROMMING two phones that share a lot of characteristics (1+1 & OF7).
I did a total re-install of the stock recovery & firmware yesterday,as I was having issues w/a SuperSu version from a tool kit that was stuck in system,but,did not fully root the phone.
Prolly coulda fixed it,but,it was quicker to wipe everything & start over.
As I loaded up the stock ROM,I was immediately prompted to an update,which I installed.
Then,about three hours later,w/Bootloader unlocked/TWRP Installed & full root w/SuperSu 2.01,was when the 2nd update prompt appeared,for the xxxxxxxx25 build.
It updated w/no problem,still have root.
As I stated,I could be mistaken as having a "new" update,but,at least an update was installed w/o breaking root.
Since rooting/ROMMING doesn't void any warranties,I'd say we're safe to move forward w/any future updates w/o the worry of breaking root.