In some instances, the version (release number) of QuickBooks that is hosting multi-user access
must match the version (release number) of QuickBooks that is opening a company file.
There are two scenarios when this can occur: either the computer you are using needs to be updated or
QuickBooks (or the QuickBooks Server) on another computer needs to be updated.
Before you continue, gather the following information:
Review the message you received and note the name of the computer that needs to be updated.
In all copies of QuickBooks (or the QuickBooks Server) that store or use company files in multi-user mode, make a note of
the release of QuickBooks installed.
Based on the release numbers, determine which copies of QuickBooks are not at the higher release number.
(If you update QuickBooks on one computer but not the others, those users will receive the same message
when they log in to company files.)
Update all QuickBooks that are not at the higher release number
For full installations of QuickBooks, update QuickBooks.
If you need to update an installation of the QuickBooks Server, update the QuickBooks Server.