Version 1.8.4 is a breaking change - node engine changed from >=8 to >=12

[asimen1]

@peternhale node engine change: https://github.com/oclif/command/commit/2eb900247cd026a5fc240bf0855f420ed48c775f#diff-7ae45ad102eab3b6d7e7896acd08c427a9b25b346470d7bc6507b6481575d519L37

This should be a major version because it breaks existing systems using older node versions, e.g. our CI/CD failed when installing packages because the node version in the image used there is node v10.

[vasilev-alex]

Agree with @asimen1

This is a breaking change of which we found out on CI. These kinds of changes must be always released in a minor update.