deno compile now auto-detects frameworks in directories (
8a9b71f)
deno compile . can now detect supported web frameworks, run the app’s build step, synthesize a temporary entrypoint, and bundle the right build artifacts automatically. It also adjusts type-checking for Next.js and resolves included build output relative to the app directory, making directory-based compilation much smoother.
New deno transpile subcommand for JS output (
89a21c5)
Deno now has a standalone transpiler for TypeScript, JSX, and TSX, with support for single-file output, output directories, source maps, and declaration emission. This adds a first-class build-tool path for producing JavaScript without relying on external tooling.
deno why explains why a package is installed (2ecf293)
A new package-manager command traces dependency chains from direct dependencies to a target package, including version filtering and multiple-version cases. That makes it easier to understand lockfile state and why a transitive package is present.
deno audit --fix can now auto-upgrade vulnerable deps (b5a6955)
Audit gains a fix mode that upgrades vulnerable direct dependencies to patched versions while avoiding major-version jumps and unsupported spec forms. It also reports cases it can’t safely rewrite, which turns audit from a read-only report into a remediation tool.
Node compatibility improves across TLS, HTTP/2, timers, and crypto
Several compatibility fixes landed for Node polyfills, including tls.getCaCertificates(), SNI handling, setImmediate callback binding, HTTP/2 flow-control behavior, and stricter crypto input validation. These changes unblock or stabilize a number of node_compat tests and bring behavior closer to Node.
Inspector REPL no longer loses promises to GC (
56b88b4)
The REPL event loop now drains microtasks immediately after polling inspector sessions, closing a race that could surface -32000 "Promise was collected" in external debugger sessions. A regression test was added under forced GC to keep the fix from regressing.
Other misc changes
- Node compat and web polyfill fixes: Event.returnValue flags, MessageEvent ports, EventTarget listener initialization, structuredClone fast path, WebIDL dictionary conversion fast path, root CA retrieval, and more.
- HTTP/2 compatibility follow-ups: internal bindings/constants, stream window handling, timeout/proxy behavior, and several test-suite skips/enables.
- Minor test/config cleanup and compatibility gating updates across node_compat.