We currently have the r9.61 (32-bit) version of the mart installed on our server. We are considering upgrading directly from r9.61 (32-bit) to r9.7 (64-bit). Do I need to uninstall the previous Mart Server software before upgrading to r9.7 Mart Server?
You need to download r9.7 (64-bit) on your 64-bit OS machine. Then you can upgrade the mart from r9.6.1 to r9.7 directly. But please make sure to uninstall the Mart Server r9.6.1 software first and then install the Mart Server r9.7 software. Then you can perform the mart database upgrade from r9.6.1 to r9.7.