Has Nano wallet changed from NanoWallet.exe to start.html which uses java script ?   tests.js??

version 1.4 contains exe, but 2.1.2 contains html
 
https://blog.nem.io/nanowallet-tutorial/

When there has been talked to move from java to C++, I thought that exe was those first C++ implementations




Edit:  tutorial doesnt mention java. Isn't java 8 anymore a requirement?