UE4Editior.exe Entry Point Not Found

Error message reads,

The procedure entry point ?GetLastModDownloadText@UEngine@@UEBA?AVFString@@Z could not be located in dynamic link library UE4Editor-Engin.dll.

I suspect I have an out of date dll or something out of sync/mixed versions . Steam file verification reports all files are good.
Do I just need to wait for the kit to be patched/updated?

Any time you see the ark dev kit get updated by steam you must also check the github for the new binaries and plugins and update them in to the editor.

Doah!! (head slap)