{"version":"2.1.269","anchor":"new-mime-types-recognized-for-textcode-files","canonical_anchor":"new-mime-types-recognized-for-textcode-files","heading":"New mime types recognized for text\/code files","tier":"notice","area":"Elsewhere","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.269\/e\/new-mime-types-recognized-for-textcode-files","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.269","markdown":"### New mime types recognized for text\/code files\n\nFile-type detection now recognizes .ts, .css, .js, .mjs, and .cjs files by MIME type\n\n**Unclear.** Which specific feature (artifact handling, attachments, or something else) consumes this map is not stated.\n\n**What**\n\nClaude Code's internal map of file extensions to MIME types (labels describing a file's content type) gained entries for `.ts` and `.js`\/`.mjs`\/`.cjs` files (mapped to `text\/plain`) and `.css` files (mapped to `text\/css`), alongside a JavaScript mapping to `text\/javascript`.\n\n**Why**\n\nThis likely improves how these common code file types are handled when attached or used as artifacts, since they can now be correctly identified by type instead of falling back to a generic or missing classification.\n\n- Area: Elsewhere\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 0\/5"}