There has been 17 releases since the last news post. The automatic issues and pull requests have simplified the release process and a few have been more or less fully automatic.
The Immich CLI have been included in the package since the beginning. It has been removed in this release.
I have included Immich CLI in the package under immich-distribution.cli since the beginning. I initially added it for the upload functionality in the sync feature but choose to expose it to users via immich-distribution.cli.
The bundled CLI has not been that useful, it's restricted from where it can read due to the sandbox and I never found it useful myself. I usually install the cli manually outside anyway. The CLI has since five days ago been deprecated in favour of a new CLI that's included in Immich normal repository.
You need to install the new CLI manually, upstream documents it here. There is also an excellent 3rd party cli called immich-go that may be easier to install, and has several interesting features.
I have implemented the file upload logic myself in Python (with inspiration from the documentation). I initially avoided this because I thought the API would change a lot and it would be easier to call the official command line utility. The tests use the same logic so if this fails, the automatic tests should catch it.