Don't returned to this one for a while!
DesignSpark Mechanical
It's now 4.0 totally free with all powerful functions present!

Install is very long so be patient!
Register is only mail + password! Multi-languages! Free!
So a SpaceClaim light!

https://www.rs-online.com/designspark/mechanical-download-and-installation

Boolean functions and powerful fillets!

Old powerful functions disapeared are come back!