OffscreenCanvas ships in core runtime (
f17673a)
Deno adds OffscreenCanvas support across canvas and WebGPU plumbing, with TypeScript surface updates and substantial new implementation code. This unlocks a key browser API for worker/off-main-thread graphics work and widens compatibility for canvas-heavy apps.
Node module.registerHooks() support lands (
63ce783)
Implements CommonJS module.registerHooks() with resolve/load hooks, chaining, passthrough, and deregistration behavior. This is a meaningful runtime API addition for advanced loaders and tooling that depend on Node’s modern module hook model.
node:test gets far more complete (be0502b, 21fb99e, 1d36a12)
The node:test polyfill picked up several previously missing APIs: test context fields like name, fullName, and signal, assertion planning, suite-level hooks, and mockImplementation/mockImplementationOnce plus getter/setter mocks. Another fix hardens the runner against unhandled rejections and uncaught errors so tests warn instead of crashing, bringing behavior closer to Node.
Node TLS and crypto compatibility improved (ea33a86, df8d21c, 
426a0f8, 
04e47ba, 14f8ca3)
Several fixes landed around TLS edge cases and Node internal bindings, including Happy Eyeballs reinitialization, detached ArrayBuffer handling during writes, proper error codes for setServername(), and http2 binding exposure. These changes remove real crashers and unblock more node_compat coverage.
Node crypto gains more private-key and DH support (fd0f204, 0f570e2, cc844ee, 5b43ce5)
Encrypted PKCS#8 export/import, PBES2-encrypted PEM export, encrypted private-key handling in publicEncrypt/privateDecrypt, and DH shared-secret padding/sign-byte fixes all landed. Together they close several compatibility gaps in key generation and cryptographic interop.
Telemetry OTLP exporter now supports gRPC (
04f28b9)
The OTLP exporter can now speak gRPC in addition to HTTP-based protocols, with dedicated span/log/metric exporters and gRPC framing implemented without pulling in heavy dependencies. That makes Deno’s OpenTelemetry story much more flexible for production observability setups.
Performance work speeds up node:http writes (
6e3da78)
A deeper writev path for TCP sockets landed to make node:http use true vectored writes instead of extra copying. This is the kind of low-level change that can pay off in throughput and allocation reduction for network-heavy workloads.
Lazy-loaded extension scripts reduce snapshot overhead (a09ed54)
Deno.core.loadExtScript() was added so extension scripts can be loaded on demand without going through the ES module pipeline. The motivating change is explicit: lower snapshot size and faster serialization/deserialization for core initialization.
Child-process IPC now supports socket handles on Unix (9d69a64)
Unix child-process IPC can now send net.Socket and net.Server handles between processes. That’s a substantial compatibility improvement for Node-style IPC patterns and required coordinated changes across process, tcp, and pipe layers.
TLS socket fallback no longer crashes on Happy Eyeballs (ea33a86)
The TLS socket handle is now re-wrapped correctly when address fallback occurs, preserving TLS behavior after autoSelectFamily retries. This fixes an intermittent but severe connection crash on multi-address hosts.
Other misc changes
- Daily Node compat CI schedule tweak (1 commit)
- Console proxy inspection fix for
nodejs.util.inspect.custom fs.watchoption validation tightened- Minor http2 internal binding exposure fix for compat tests
- Node compat test metadata updates