Read the readme document for further information.

Beginning with v8.4.0 Update 1, the EnergyPlus installers include a limited set of transition programs. This archive contains transition programs from v1.0 to v8.4.0.

To use them, extract the files to /path/to/energyplus/PreProcess/IDFVersionUpdater

If any files are duplicates, you may allow these to overwrite. These files are 64-bit Linux executables.