You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
NotebooksArea: what it touches
ImprovementsKind: in v2.1.227,
ImprovementsSection of the release
What
Editing a notebook now stats the file first and bails out if it is not a regular file or is larger than 100 MB, rather than pulling the whole thing into memory. Within the cap it reads at most one byte past the limit.
Evidence
notebook_path
Strings lifted out of the shipped bundle, so the claim above can be checked against them.