Remember to install .zip & .tar.gz versions into COMPLETELY EMPTY FOLDER. Do not just unpack over a previous installation!
You'll need to BACKUP and ERASE your SETTINGS first before run when changing your build DOWN (the ~/WebStorm folders in you home dir + .idea folder in each project)
Initial release date: July, 11 2016
Latest version: WebStorm 2016.2.4 (build 162.2228, built on October, 19 2016)
For OS X
Initial release date: March, 17 2016
Latest version: WebStorm 2016.1.3 (build 145.1616, built on April, 29 2016)