Bun v1.3.11 ships with 105 bug fixes and several new features. New APIs include Bun.cron for OS-level cron job scheduling (crontab/launchd/Task Scheduler), Bun.sliceAnsi for ANSI and grapheme-aware string slicing, and richer metadata in Bun.markdown.render() list callbacks. The release adds --path-ignore-patterns for bun test, native Windows ARM64 shims for node_modules/.bin, and fixes dgram UDP socket bugs on macOS. Notable bug fixes cover fs.openSync numeric flags on Windows (unblocking tar@7), http2 WINDOW_UPDATE stalling, CRLF injection in HTTP headers, bundler bytecode/barrel/import-attribute issues, CSS unicode-range and mask parsing, bun install hang scenarios, and dozens of Node.js compatibility improvements across crypto, streams, fs, and more.
Table of contents
Bun.cron — OS-level Cron Jobs and Expression ParsingBun.sliceAnsi — ANSI & grapheme-aware string slicingBun.markdown.render() now passes richer metadata to listItem and list callbacks--path-ignore-patterns for bun testFixed dgram UDP socket bugs on macOSNative ARM64 shim for Windows node_modules/.bin binariesBugfixes2 Comments
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