Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What
The buffered writer behind debug logging batches items measured by their own content length rather than concatenating strings, with a wrapper preserving the old joined-string behaviour. This is what allows debug output to be appended to the new storage backend rather than straight to a file.
Evidence
writeBatch
Strings lifted out of the shipped bundle, so the claim above can be checked against them.