New release of my app is not showing in some devices's App World

I have already submit a new release of my app and it has been approved. Now I can download it but not everyone can. People with the same device I have does not get de updating info and when delete the app from their devices and comes into App World again, only find the older release they installed previously.

I think it happens on devices with v6 of OS but my app is developed from v5 and up.

Coul开发者_Go百科d anyone explain this wrong behaviour and why is it happening?

Thanks in advance.

Scott is right. Here's the official link explaining it

It can take up to 7 days for all BlackBerry® smartphone users to see your upgraded release, new or changed screen shots, or new icons.

http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/1573156/What_Is_-_The_BlackBerry_App_World_storefront_cache.html?nodeid=1577562&vernum=0

Are you sure that you have set the appropriate OS versions for the COD files that you have uploaded? I have also heard rumors that App World does not update simultaneously for all users. That there is potentially some kind of a roll-out process where it may take several days for all users to see updates.