There are several versions of FBX SDK that are in current use: FBX SDK 2011.2, FBX SDK 2011.1, FBX SDK 2010.2, FBX SDK 2010.0, FBX SDK 2009, etc.
FBX file formats also have version numbers. FBX SDK 2010.2 exports FBX file format 7.1 (default), 7.0, and 6.1, and imports FBX file format 7.1, 7.0, 6.1, and 6.0 (seeFile formats imported and exported.)
You can check whether the version of the file format used by an FBX file is supported by the version of FBX SDK to which your application is linked:
// Get the FBX file format version number for the FBX files generated
// by the version of FBX SDK that you are using.
myImporter->GetFileVersion(lFileMajor, lFileMinor, lFileRevision);
// Get the FBX file format version number of the import file
myImporter->GetFileVersion(lFileMajor, lFileMinor, lFileRevision);