So there is a box on the right hand side of the software page where you can enter your email to be notified of new updates.
https://www.etcconnect.com/Products/Consoles/Eos-Family/Ion-Xe/Software.aspx
Does this work?
I stumbled upon last week's fixture profile update accidentally.
Now I see there was a new update released on 09 February.
I have not gotten any emails.
(Nothing in my Spam file either)