Bun 1.4
Bun 1.4 rewrites Bun in Rust, ships built-in headless browser automation (Bun.WebView), Bun.Image, Bun.markdown, JSON5, JSONL, Terminal and cron APIs, Node.js 26.3.0 compatibility with 1,517 newly passing tests, parallel test and run, Windows ARM64, and an opt-in global virtual store for up to 7× faster installs.
Also shipped Aug 20, 2026Bun in August 2026 →
BigQuery adds ML.TREND, ML.SEASONALITY and ML.DETECT_CHANGE_POINTS in preview
New table-valued functions in the query editor and conversational analytics identify trends, repeating seasonal patterns and structural change points in time series data.
BigQuery Graph core processing limited to Enterprise editions from April 26, 2027
Standard edition and on-demand billing support for BigQuery Graph core graph processing is deprecated, with processing restricted to Enterprise and Enterprise Plus from April 26, 2027. Graph measures remain available except in Standard edition.
The run_bq_command tool exposes the bq command-line tool within the Cloud CLI remote MCP server
The run_bq_command tool exposes the bq command-line tool within the Cloud CLI remote MCP server. AI agents can now execute advanced BigQuery operations, such as job scheduling, job management, and reservation management, through a managed MCP endpoint. For more information, see Use the Cloud CLI remote MCP server . This feature is in Preview .
AI_EXTRACT and AI_PARSE_DOCUMENT support for client-side encrypted stages and network-restricted accounts (General availability)
AI_EXTRACT and AI_PARSE_DOCUMENT now support documents stored on stages that use client-side or server-side encryption, including in accounts that use PrivateLink or other network policies that restrict public network access to stages. For more information, see the following topics:
Cortex Agent code execution tool (Preview)
The Cortex Agent code execution tool is now in public preview. When you enable the tool on an agent, the agent can generate and run Python in a secure, isolated sandbox to process data, perform calculations, and produce visualizations.
Salesforce connector mTLS authentication is now generally available
Mutual TLS (mTLS) authentication for the Salesforce connector in Lakeflow Connect is now generally available. With mTLS, Databricks and Salesforce exchange and verify client certificates to establish two-way trust, combined with the OAuth client credentials flow. Choose it for API-only users or when your organization requires mTLS.
More from BunEvery Bun release →
Bun v1.4.1
Fixes 202 issues, addressing 236 👍. HTTP/2 in Bun.serve, Bun.write() streams Response bodies to disk, self-contained workspace node_modules, bun install --offline and --prefer-offline, WebSocket pause() and resume(), crypto.argon2, tree-shaking through dynamic import(), smarter CommonJS to ESM conversion for default imports, --compile --bytecode when...
Bun v1.4.2
This release fixes two regressions impacting Elysia and AsyncLocalStorage, a hang in @discordjs/ws, CMYK JPEG decoding in Bun.Image, a rare JIT crash, and a GC crash on musl.
Rewriting Bun in Rust
Why & how we rewrote Bun from Zig to Rust
Bun v1.4.3
Fixes 166 issues, addressing 122 👍. bun check, a TypeScript type checker built into Bun that is 3x to 6.4x faster than tsc 7, --check for bun run, bun build and bun test, 67–89% less idle CPU, Bun.FetchSession, experimental Bun.ModuleGraph, --disallow-code-generation-from-strings, up to 2.7x faster large node:http responses, a JavaScriptCore upgrade with...
Bun v1.4.4
Bun v1.4.4 introduces a built-in Prettier-compatible formatter, faster package installation, and performance improvements for Bun.SQL and Bun:sqlite. It also includes a JavaScriptCore upgrade and various bug fixes.
Bun v1.3.14
Fixes 92 issues (addressing 380 👍). Bun.Image , a built-in image processing API, 7x faster warm installs with the isolated linker's global store, experimental HTTP/2 and HTTP/3 clients for fetch(), HTTP/3 (QUIC) in Bun.serve(), rewritten fs.watch() on Linux and macOS, --no-orphans CLI flag, process.execve(), Bun.Terminal on Windows via ConPTY, FreeBSD and...
Bun v1.3.13
Fixes 82 issues (addressing 381 👍). bun test --parallel, --isolate, --shard, and --changed, bun install streams tarballs to disk using 17x less memory, source maps use 8x less memory, 5.5x faster gzip with zlib-ng, Range request support in Bun.serve(), SHA3 in node:crypto and WebCrypto, ws+unix:// WebSocket client, and many bugfixes and Node.js...
Bun v1.3.12
Fixes 120 issues (addressing 219 👍). Render Markdown in the terminal with bun ./file.md, Bun.WebView headless browser automation, in-process Bun.cron() scheduler, async stack traces for native errors, 2.3x faster URLPattern, 2x faster Bun.Glob.scan, cgroup-aware parallelism on Linux, and many bugfixes and Node.js compatibility improvements.