What's wrong with this entry?
Anonymous. No account, no email.
Message types have been refactored from generic "request"/"response" to specific types: "shutdown_request", "shutdown_response", and "plan_approval_response". This simplifies the protocol and removes the need for a separate subtype field.
Evidence
Message types (search for "shutdown_request" and "plan_approval_response")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.