[Velocity 7]

Yes, that's R4'. No idea why ', maybe R4 prime? Perhaps a bugfix that the author wasn't aware of until now? Unfortunately no new changelog to reflect this.

Check the site here.

Get the file directly here, and note the filename has R4'.

 

[Norbi]

Preety nice, but i wonder what has been changed...

 

[Gouketsu]

I've posted a link to (and translation of) the "changelog" in the news discussion thread: http://www.ngemu.com/forums/showthread.php?threadid=61835