In SmartSVN v7.5.1 on Mac OS X, the "main perspective" uses F6 to move to the "next change." However "File/Revision Compare" still uses Command-Down key combo. This is not a big deal, but it does look a bit like a half-baked Windows / Visual Studio port to Mac. For the record, I prefer "Command-Down", but the best solution is to let me define my own keyboard shortcuts. Ten minutes after upgrading to 7.5.1, I got my first "out of memory" message while creating a "graph." I was told to edit the shell script "SmartSVN" and manually bump SMARTSVN_MAX_HEAP_SIZE. I'm not too familiar with Java runtime environment, but is this really the only way to handle low memory situations? While SmartSVN didn't crash, it did force me to "shutdown" which is effectively the same thing. While creating the "graph" that eventually ended up shutting down SmartSVN, nothing really worked. I couldn't move to the next change in the file, etc. It wasn't clear to me that I was in the "busy, don't bother me mode." I did finally notice the progress bar on the bottom right and figured out that SmartSVN can't do more than one thing at a time. Assuming I'm not confused about this, then it might make sense to highlight the progress bar to emphasize the fact that SmartSVN is busy doing something that can't be interrupted and prevents useful work from happening. Our company recently purchased an 8-seat license for SmartSVN and I'm hoping WANdisco continues the SmartSVN tradition of great usability, careful testing and thoughtful design. Quick update: I bumped SMARTSVN_MAX_HEAP_SIZE to 1GB and re-ran "Graph" -- this time, SmartSVN hangs (rainbow of death). I eventually killed the process (no useful information from "Instruments" -- SmartSVN is spinning inside "libclient64.dylib", unfortunately no symbols for Java).