I have started to convert a big application to DF 19.1 and got 8500 warnings for obsolete code. That was expected as some parts of the code was written in Df 2.3 40 years ago. A few warnings can easily be corrected with replace in files, but most of them must be handled in other ways. Are there possibly any tools out there that can update such obsolete code? DfRefactor in useful in many ways, but in this case just a few warnings can be fixed with that tool.