Please choose check for update from the file menu, or download manually from http://www.crushftp.com/download.html.
Changes:
CrushFTP 4.9.17 has minor bug fixes. It is the last CrushFTP 4 release.
***CrushFTP 5 has been released!
***(Paid upgrade.) http://www.crushftp.com/pricing.html
***Many, many new features, full docs here: http://www.crushftp.com/crush5wiki/