Upon testing, this is what I got.

 Initial blacklisted packages: 
Initial whitelisted packages: 
Starting unattended upgrades script
Allowed origins are: []
Checking: firefox-esr ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: google-cloud-sdk ([<Origin component:'main' archive:'cloud-sdk-stretch' origin:'cloud-sdk-stretch' label:'cloud-sdk-stretch' site:'packages.cloud.google.com' isTrusted:True>])
Checking: google-compute-engine ([<Origin component:'main' archive:'google-compute-engine-stretch-stable' origin:'google-compute-engine-stretch-stable' label:'google-compute-engine-stretch-stable' site:'packages.cloud.google.com' isTrusted:True>])
Checking: google-compute-engine-oslogin ([<Origin component:'main' archive:'google-compute-engine-stretch-stable' origin:'google-compute-engine-stretch-stable' label:'google-compute-engine-stretch-stable' site:'packages.cloud.google.com' isTrusted:True>])
Checking: libavcodec57 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libavfilter6 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libavformat57 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libavresample3 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libavutil55 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libpostproc54 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libswresample2 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: libswscale4 ([<Origin component:'main' archive:'stable' origin:'Debian' label:'Debian-Security' site:'security.debian.org' isTrusted:True>])
Checking: python-google-compute-engine ([<Origin component:'main' archive:'google-compute-engine-stretch-stable' origin:'google-compute-engine-stretch-stable' label:'google-compute-engine-stretch-stable' site:'packages.cloud.google.com' isTrusted:True>])
Checking: python3-google-compute-engine ([<Origin component:'main' archive:'google-compute-engine-stretch-stable' origin:'google-compute-engine-stretch-stable' label:'google-compute-engine-stretch-stable' site:'packages.cloud.google.com' isTrusted:True>])
pkgs that look like they should be upgraded: 
Fetched 0 B in 0s (0 B/s)                                                                                                            
fetch.run() result: 0
blacklist: []
whitelist: []
No packages found that can be upgraded unattended and no pending auto-removals

What I am attempting to do is automatically install new tor versions when they are released. Will this do that automatically? How can I keep this process running? Thanks.