The conventional commits guidelines state that anything that appends a ! after a type/scope should result in a breaking change. (source)
#1038 brought to our attention that a recent change that included fix!(instrumentation): as the commit type when merged into main but this was not applied. Instead, the changes were treated like fix:.
We expected to see BREAKING CHANGE listed in the Changelog. Since the gem is still at 0.x, a major version bump shouldn't occur.