Under the hood
Command-run answers can now carry structured 'context' data, not just text
What
When a hook modifies the answer produced by running a command, it can now override a context field in addition to the answer's text. The internal mechanism for settling and re-telling these answers can drop the text or the context independently of one another.
Why
This lets hooks attach structured information to a command's result, separate from its plain text output, and gives finer control over which part of a hook's answer is kept or discarded.