Basically using diff
Published: Wednesday, Dec 26, 2007 Last modified: Friday, May 12, 2023
I have been using diff ! :)
diff -N -r -u bins-1.1.21 bins-1.1.21.bug/ > bins.patch
N esp. if your patch includes new files r for recursive u for human readable
Have a look at the patch to be sure of order. Plus signs (+) should be the changes you want.