No Release File

[bsmither]

So I try the Stable release:
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Err:12 http://nginx.org/packages/ubuntu tricia Release                   
  404  Not Found [IP: 95.211.80.227 80]

E: The repository 'http://nginx.org/packages/ubuntu tricia Release' does not
have a Release file.
N: Updating from such a repository can't be done securely, and is therefore
disabled by default.
-----
Are there any other instructions available to get Nginx 1.17 downloaded?

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,287202,287203#msg-287203