[mossTechnician]

Is there an expectation Haiku 3.5 is completely different? Even leaving semantic versioning aside, even if the .5 symbolizes a "halfway point" between major releases, it still suggests a non-major release to me.

[simonw]

Consumers have no idea what Haiku is.

Engineers who work with LLM APIs are hopefully paying enough attention that they understand the difference between Claude 3, Claude 3.5 and Claude 4.