This is a major release. Sahi Pro v7.0.0 is major rewrite of Sahi Pro. It was required to allow support for technologies other than web.
Sahi Pro Desktop Add-on has been introduced which supports Windows and Java technologies.
Please have a look at What's new in Sahi Pro v7.0.0 for details. Please do not upgrade without reading the above documentation, since some changes may break your existing scripts.