OS compatibility for U2 database

Hi all,

I’ve been looking looking into what is involved in updating UD and UV systems.  The Universe 14.2.1 installation guide has a link for  the  “U2 Product Availability Matrix” -->  https://rbc.rocketsoftware.com/buildmatrix.asp  Unfortunately, this takes me to a dead-end with “This rbc.rocketsoftware.com page can’t be found”.  Where can I find this document?

Thank you,

Jonathan Wells

Aptron Corporation