What probably matters to youSection of the release
What
The ui.log operation, which plugins use to write log output, now accepts a to parameter that chooses where the text goes: either the normal visible UI log ("transcript") or a debug-only log line. Previously, ui.log always appended to the visible UI log.
Why
This lets plugin authors send diagnostic or debug output to a separate debug log instead of cluttering the visible transcript that users see.
