New
#31
For what its worth, the latest listed on My Visual Studio subscription is "Windows 10 (consumer editions), version 1803 (Updated Jul 2018) (x64) - DVD". There was a new ISO released there for 1803 in March as well.
The basic rule of thumb as far as the MCT download goes, is redownload the latest version of the tool, and run that version to get the latest ISO via that tool. If you run an older version you have saved from before, all you'll potentially get is an older ISO.