Ways to Find Versions in Sitecore

To find the current sitecore version

Method 1 :
Login to sitecore desktop then go to the following path
Sitecore Start Button -> All Applications -> System -> About Sitecore

Method 2 :
At the start of the sitecore log files, sitecore writes the version details of its main dlls.
i.e. Sitecore.Kernel.dll and Sitecore.Client.dll

Method 3 :
Following way can be used to find the sitecore dll version.
Wright Click on Sitecore.Kernel.dll in the /bin directory -> Properties -> Details

Note: This method may not actually reflect the current sitecore version correctly, if the dll's are changed/replaced by different sitecore version.



To find the currently installed Module version in sitecore 
(i.e. WFFM, ECM, etc)

Wright click on the relevant .dll file in the /bin directory -> Properties -> Details
   Ex: Sitecore.EmailCampaign.dll