Exception "The "stop-when-empty" option does not exist." when processing messages
it seems that the option stop-when-empty is missing in Horizon Work Command
Same issue here when upgrading to 5.7.2. 
@mathiasmoser, I reverted back to version 5.7.1 of the framework by explicitly requiring 5.7.1 instead of 5.7.* in my composer.json file, restarted horizon and my queues are processing normally again.
@jasrys ok thanks for the tip - for now i use a custom HorizonServiceProvider which extends the Default Horizon Provider - in the Custom Provider i register a Custom WorkCommand which uses a signature with the missing option.
Same here. It looks like this is related to this PR: https://github.com/laravel/framework/pull/25116
Same here. 5.7.2 has some bug fixes in as well that are needed.
We have a PR for a fix: https://github.com/laravel/horizon/pull/385
Merged! Waiting on a release I think? Thanks @themsaid
Any news on this? I saw that @themsaid reverted that PR.
@santigarcor It was re-added afterwards. It's been tagged as well. 1.4.0
Should be fixed now.