I'm noticing an error in retro whenever the system starts up:
11/21/15 19:28:18.385 retropds.25[744]: WARNING: The Gestalt selector gestaltSystemVersion is returning 10.9.2 instead of 10.11.2. This is not a bug in Gestalt -- it is a documented limitation. Use NSProcessInfo's operatingSystemVersion property to get correct system version number.
Call location:
11/21/15 19:28:18.387 retropds.25[744]: 0 CarbonCore 0x00007fff823b6c9b ___Gestalt_SystemVersion_block_invoke + 113
11/21/15 19:28:18.387 retropds.25[744]: 1 libdispatch.dylib 0x00007fff9303d33f _dispatch_client_callout + 8
11/21/15 19:28:18.387 retropds.25[744]: 2 libdispatch.dylib 0x00007fff9303d237 dispatch_once_f + 67
11/21/15 19:28:18.387 retropds.25[744]: 3 CarbonCore 0x00007fff82342b47 _Gestalt_SystemVersion + 987
11/21/15 19:28:18.387 retropds.25[744]: 4 CarbonCore 0x00007fff82341ddb Gestalt + 139
11/21/15 19:28:18.387 retropds.25[744]: 5 retropds.25 0x0000000100020de3 fscImportVolInfo + 174
11/21/15 19:28:18.387 retropds.25[744]: 6 retropds.25 0x0000000100020b07 CVolUpdate + 879