John,
When I joined bootcamp I got the revision 18 or something like that (year 2011) and later I have updated to revision 52. To download you need have S user ID for (http://service.sap.com). I am not sure if SAP has the latest Studio on SCN.
There is a SAPnote which talks about what all have been fixed in revision 52. (SAPnote
1830621)
Rgds,
PY.