ayufan 0.7.12 pre-release images (help testing)

[AndyOfLinux]

New pre-release images from ayufan are now available. Help testing, submit prs and fixes. Feedback welcome.

Very basic question:
I am unable to update to pre-release
I am doing something wrong in ayufan-rock64.list
I modified it from
 deb http://deb.ayufan.eu/orgs/ayufan-rock64/releases /

# uncomment to use pre-release kernels and compatibility packages
# deb http://deb.ayufan.eu/orgs/ayufan-rock64/pre-releases /

to
# deb http://deb.ayufan.eu/orgs/ayufan-rock64/releases /

# uncomment to use pre-release kernels and compatibility packages
 deb http://deb.ayufan.eu/orgs/ayufan-rock64/pre-releases /

but this not working!

Code:

root@rockpro64:~# sudo apt-get install linux-rockpro64 -y
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-rockpro64 is already the newest version (0.7.9).
0 upgraded, 0 newly installed, 0 to remove and 61 not upgraded.

>>> Maybe silly Q BUT did you do all 3 of these commands after uncommenting package list?

Code:

sudo apt-get update -y
sudo apt-get install linux-rock64 -y
sudo apt-get install linux-rockpro64 -y