EDIT: Version 17.07 has now been released, see the post Dell EMC Server Update Utility SUU 17.07 released.
The latest version of Dell EMC Server Update Utility (Dell SUU) 17.04.00 was released on the 28 March 2017. The Dell EMC SUU is an application used to help patch Dell PowerEdge servers. It will compare currently installed drivers and firmware with those available on the mounted iso file.
Dell now have a product support page for the Server Update Utility which can be found on the link below, it appears not to be updated for 17.04.00 yet. To check to see if it is, in support, select choose products – Software & Security – Enterprise System Management – Server Update Utility.
The Dell EMC Server Update Utility SUU 17.04.00 release can be downloaded below in 32bit format or 64bit format. The 64bit only supports 12th and 13the generation servers, whereas the 32bit supports 11th generation to 13 generation servers.
The SUU should be found in the System Management section on the Drivers and Downloads page for your server, I’d recommend checking there first to make sure you get the latest version for your server. If you can’t find it use the links above.