{"version":"2.1.227","anchor":"notebook-reads-and-edits-now-refuse-files-over-100-mb","canonical_anchor":"notebook-reads-and-edits-now-refuse-files-over-100-mb","heading":"Notebook reads and edits now refuse files over 100 MB","tier":"notice","area":"Notebooks","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.227\/e\/notebook-reads-and-edits-now-refuse-files-over-100-mb","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.227","markdown":"### Notebook reads and edits now refuse files over 100 MB\n\nNotebooks over 100 MB are refused for reads and edits, with a suggestion to slice them.\n\n**What**\n\nNotebookRead checks the file before opening it and refuses anything larger than 104857600 bytes, suggesting you slice it with jq or PowerShell instead. NotebookEdit refuses an edit that would push the notebook past the same limit and leaves the file untouched.\n\n**Details**\n\n- Non-regular files (devices, FIFOs, sockets) are rejected outright.\n- A structural check now rejects files that are not real notebooks: the top-level `cells` must be an array of cell objects each with a string or string-array `source`.\n\n**Evidence**\n\n`Notebook file is not a valid Jupyter notebook (top-level \"cells\" must be an array of cell objects, each with a string or string-array \"source\").`\n\n- Area: Notebooks\n- Tier: You'll notice\n- Useful: 3\/5\n- Signal: 2\/5"}