.net - Should I resign the assembly with a new strong name key?

Question

Should i be creating a new strong name key to resign a class assembly if i change the version information / number of the class assembly ?

For example : The class assembly version information is currently 1.0.0.0. If I change the version no. to 1.1.0.0, should i create/resign the assembly? or does the strong name key use the new version information when the assembly is re-built?

thanks!