It's in the copyright notices. The chn file says April 7 and the pdf down load shows the March date. The help for ffind shows the /8 switch in the chn file but pdf doesn't show the new option. Release notes state that the help files have been updated for build 60
I rechecked the web site and the pdf file has an April date. You're probably retrieving a cached copy from somewhere; try downloading it again.
The only help file in release notes, and the only one that gets updated regularly, is the chm file. The pdf is *not* a help file, and normally gets updated once every 2-4 weeks.
Also, the /8 option is strictly experimental, and may (probably will) change before it's finalized.