Node v12.4.0 (Current)

Notable changes

• doc:
  • The JSON variant of the API documentation is no longer experimental (Rich Trott) #27842.
• esm:
  • JSON module support is always enabled under  --experimental-modules

The --experimental-json-modules flag has been removed (Myles Borins) #27752.

• http,http2:
  • A new flag has been added for overriding the default HTTP server socket timeout (which is two minutes). Pass --http-server-default-timeout=milliseconds or  --http-server-default-timeout=0 to respectively change or disable the timeout. Starting with Node.js 13.0.0, the timeout will be disabled by default (Ali Ijaz Sheikh) #27704.
• inspector: Added an experimental --heap-prof flag to start the V8 heap profiler on startup and write the heap profile to disk before exit (Joyee Cheung) #27596.

The readable.unshift() method now correctly converts strings to buffers. Additionally, a new optional argument is accepted to specify the string’s encoding, such as utf8 or ascii (Marcos Casagrande) #27194.

• v8:
  • The object returned by v8.getHeapStatistics() has two new properties: number_of_native_contexts and number_of_detached_contexts

(Yuriy Vasiyarov) #27933.

View commits on nodejs.org