Deno

Deno v2.8.3 introduces watch mode for deno compile and supports glob patterns in deno.json links. New features also include diagnostic reporting for import map files and ML-DSA JWK import/export in ext/crypto. The release also addresses numerous issues across the CLI, bundling, fetching, and Node.js compatibility.

Added ML-DSA (FIPS 204) post-quantum signatures and ML-KEM (FIPS 203) post-quantum key encapsulation, plus ChaCha20-Poly1305, SHAKE, and SHA-3 HMAC support to the crypto API. Improved deno compile --bundle dependency resolution, scoping npm embeds to packages actually reached, and added --minify flag. Also fixed numerous bugs across compile, node compatibility, Jupyter kernel, LSP, and file I/O.

Fixed multiple Node.js compatibility issues including TLSSocket.authorized behavior when clients present no certificate, PKCS#12 MAC support in TLS SecureContext, and fs.watch error event emission on open failures. Network permission checks now apply to resolved IPs in fetch and WebSocket, and a panic in deno test --parallel is fixed.

Deno v2.8.0 adds workspace support to deno bump-version and a catalog: protocol for centralized dependency versions, implements module.registerHooks() for CommonJS and ESM, and expands Node.js compatibility with node:wasi, node:module SourceMap API, and Inspector CDP domain support. Also stabilizes text imports, adds deno ci and deno pack commands, and upgrades TypeScript to 6.0.3 and V8 to 14.9.

Deno 2.8 introduces import defer syntax, six new subcommands (transpile, pack, bump-version, ci, why, audit fix), network debugging in Chrome DevTools, and framework-aware deno compile. Cold npm installs are now 3.66x faster.

Deno has released Claw Patrol, an open-source security firewall designed for agents that extends beyond HTTP protocol protection.

2.7.14 / 2026.04.28

• feat(ext/node): add fs.Utf8Stream
• feat(upgrade): delta updates via bsdiff patches (#33274)
• fix(bundle): treat CSS s...

Fresh now detects whether pages use islands or partials and skips injecting the client-entry script entirely when neither is present, allowing static pages to ship with no JavaScript. View Transitions API support is now available via the f-view-transition attribute on partials navigation. Additional features include first-class WebSocket support, CSP nonce injection middleware, IP filtering middleware, OpenTelemetry server-to-browser trace propagation, and Temporal API support in islands.

2.7.13 / 2026.04.22

• feat(ext/node): implement node:repl module (#32799)
• feat(ext/node): rewrite node:http with llhttp and native TCPWrap (...

2.7.12 / 2026.04.09

• feat(ext/node): add fs.SyncWriteStream (#33226)
• feat(ext/node): add llhttp-based HTTPParser with native cppgc binding ...

2.7.11 / 2026.04.01

• feat: add alpha and beta release channel support (#33098)
• fix(ext/node): fire fs.watch events for immediate writes (#3...

2.7.10 / 2026.03.31

• feat: add include and exclude fields to compile config (#33024)
• fix(ext/http): gracefully handle consumed external in ...