Bun v1.3.7 fixes 91 issues and delivers major performance improvements: 50% faster Buffer.from(array), 35% faster async/await, 3x faster array.flat(), and 90% faster padStart/padEnd through a JavaScriptCore upgrade. New features include native JSON5 and JSONL parsers, Bun.wrapAnsi() (33-88x faster than wrap-ansi npm), heap and CPU profiling with markdown output, node:inspector Profiler API, and replMode for Bun.Transpiler. Fetch now preserves header casing, HTTP/2 compatibility is improved for AWS ALB/gRPC/Fauna, and numerous bugs are fixed across bundler, install, test, serve, shell, Node.js APIs, and Windows support.
Table of contents
Faster Buffer.from() with arraysJavaScriptCore upgradefetch now preserves header case when sending HTTP requestsBun.wrapAnsi() for ANSI-aware text wrappingMarkdown CPU Profile OutputHeap Profiling with --heap-profNative JSON5 SupportBun.JSONL for Streaming JSONL ParsingS3 presign() now supports contentDisposition and type optionsbun pm pack now respects changes to package.json from lifecycle scriptsnode:inspector Profiler APIFaster Buffer.swap16() and Buffer.swap64()Fixed: Bun.stringWidth - grapheme breaking with GB9c SupportNext.js 16 Cache Components compatibilityFixed: Multipart uploads with form-data + node-fetch@2 + fs.createReadStream() being truncatedreplMode option for Bun.TranspilerIncreased Maximum HTTP Header CountWebSocket URL Credentials SupportFaster JavaScript Built-insS3 contentEncoding Optionbun:ffi now respects C_INCLUDE_PATH and LIBRARY_PATH environment variablesDependency updatesBugfixes1 Comment
Sort: