This is a very common scenario that you need to restore the older version of release and your application is deployed via ClickOnce method. Below are the some links which I found found very useful in order to resolve this issue.

http://geekswithblogs.net/gpro/archive/2008/10/30/clickonce-restore-previous-version.aspx

http://www.codeproject.com/KB/dotnet/Restore_Application.aspx

http://www.infoq.com/articles/ClickOnce-Versioning

Problem:

There are some time where you would like the user to forcely update the release which is deployed via ClickOnce.

Solution:

Right Click Project > Properties > Publish Tab > Click Updates… buttons > Check the option (Specify a minimum required version for this application) to the latest version. With this option when user open the application it will automatically update the specified version.

Problem:

Unable to install or run application. The application requires that assembly Microsoft.Practices.EnterpriseLibrary.Data Version 3.1.0.0 to be installed in Golbal Assembly Cache (GAC) first. ClickOnce

Solution:

Right Click Project > Properties > Publish Tab > Click Application Files… buttons > Set the Publish Status of problem dlls to (Include) or (Include Auto) whatever is available.