- Support `new Console(...)` over process stdio and writable streams
- Write `log`/`info`/`debug`/`error`/`warn` output like Node, including `ignoreErrors`
- Mark the `Console` class as partially supported in the compatibility data
- Support `arrayBuffer()` from `node:stream/consumers`
- Print ArrayBuffer and SharedArrayBuffer values like Node
- Mark the stream consumers as partially supported in the compatibility data
The runtime answers like libuv 1.51's uv_available_parallelism, which
Node's os.availableParallelism() returns: on Linux the CPUs in the
process's affinity mask, lowered to a smaller cgroup (v2 cpu.max or v1
CFS) CPU quota; on Darwin hw.activecpu, hw.logicalcpu or hw.ncpu; on
Windows GetSystemInfo's processor count; at least 1. WASI answers 1, as
the dynamic island does.
Parallel programs (tsc-ts --checkers) need it to size their thread pools.
Corpus 4598 pins the value against the host's Node.
- Preserve callback identity, receiver binding, and class references across unions and collections.
- Track record field presence independently of undefined values and improve native runtime behavior.
- Expand differential coverage and streamline CI bootstrap and compiler rebuild checks.
- Add native worker execution with isolated module state, structured messages, and lifecycle controls.
- Support shared buffers and integer atomics with coordinated runtime ownership and cancellation.
- Extend compiler, runtime-pack, differential, and compatibility coverage for native concurrency.
* Add Node 24 filesystem link support
* Use executable extensions in Windows link fixtures
* Remove Windows links without walking their targets
* Match Windows symlink inference and Buffer validation
* Match Node Windows symlink paths and fallback state
* Preserve Windows errors when following filesystem links
* feat: support Node 24 filesystem timestamp operations
* test: record frontend baselines for timestamp fixtures
* test: link timestamp validation into the runtime smoke test
* Add Node 24 URL factories and shared parsing
* Clarify URL fixture name and remaining refusal coverage
* Update island URL test for protocol-relative resolution
* Expand Node 24 filesystem descriptor and FileHandle support
* Preserve filesystem options getter evaluation and record fixture baselines
* Normalize the known Linux fiber warning in npm stderr comparisons
- Preserve fields, accessors, added properties, and cyclic references across untyped class boundaries.
- Support platform signal names and native exception handlers that resume queued work.
- Preserve callable properties, descriptors, and shared module bindings across native JavaScript code.
- Add stored process streams with input control, output callbacks, and write interception.
- Preserve Error identity and classification through native rethrows and promise rejection.
Chris Tate