The newest version of Jaspersoft Studio is recommended and can be downloaded from the Tibco Jaspersoft website here using this URL:
If you are not already registered, you will have to do that first; you should only have to register as a normal user.
So, from the download page ( https://www.jaspersoft.com/download ), for example, select the Windows x64 version in the dropdown. The name of the downloaded file would then be: 29/01/2019 15:27 663,978,504 TIB_js-jss_7.2.1_windows_x86_64.exe
Please be aware that you may need to take action based on the following:
1. License issue: https://docops.ca.com/ca-service-management/17-1/en/troubleshooting/troubleshooting-jaspersoft-reports/jasper-studio-license-expired
2. KB000045578: https://comm.support.ca.com/kb/jaspersoft-reports-server-license-expired-after-installation/kb000045578