Our prior copyright license said you couldn’t install this on servers you don’t own. We’d had a ton of problems with consultants and software vendors handing out outdated or broken versions of our scripts, and then coming to us for support.
Now, it’s a free-for-all! If you find the scripts useful, go ahead and use ’em. Include sp_Blitz, sp_BlitzCache, sp_BlitzIndex, etc as part of your deployments for easier troubleshooting.
This is very good news.