In order to use the option Version Compatability Check, you need to have .ddif file.
By default, the DDIF file of the latest release is present in the TallyPrime Developer folder. DDIF file generated for any of the TallyPrime releases, is available in the respective folder. Repeated generation of the DDIF file is not required.
To load the Default TDL code of the base release
Go to Tools > Preferences > Compiler/Execution Options.
Browse and select the TallyPrime Exe Path field, for which the customisation project was created.
Check Load Default/Base TDL Reference from TallyPrime exe path check box. Click OK.
Right-click on the Default TDL project in the project browser, when the Default TDL code for the selected TallyPrime release is loaded.
Click Generate Compatibility Metadata.
tdlserver.ddif file will be created in the TallyPrime folder.