2018-04-24, Version 10.0.0 (Current), @jasnell

Notable Changes

• Assert

  • Calling assert.fail() with more than one argument is deprecated. [70dcacd710]
  • Calling assert.ok() with no arguments will now throw. [3cd7977a42]
  • Calling assert.ifError() will now throw with any argument other than undefined or null. Previously the method would throw with any truthy value. [e65a6e81ef]
  • The assert.rejects() and assert.doesNotReject() methods have been added for working with async functions. [599337f43e]

• Async_hooks

  • Older experimental async_hooks APIs have been removed. [1cc6b993b9]

• Buffer

  • Uses of new Buffer() and Buffer() outside of the node_modules directory will now emit a runtime deprecation warning. [9d4ab90117]
  • Buffer.isEncoding() now returns undefined for falsy values, including an empty string. [452eed956e]
  • Buffer.fill() will throw if an attempt is made to fill with an empty Buffer. [1e802539b2]

• Child Process

  • Undefined properties of env are ignored. [38ee25e2e2], [85739b6c5b]

• Console

  • The console.table() method has been added. [97ace04492]

• Crypto

  • The crypto.createCipher() and crypto.createDecipher() methods have been deprecated. Please use crypto.createCipheriv() and crypto.createDecipheriv() instead. [81f88e30dd]
  • The decipher.finaltol() method has been deprecated. [19f3927d92]
  • The crypto.DEFAULT_ENCODING property has been deprecated. [6035beea93]
  • The ECDH.convertKey() method has been added. [f2e02883e7]
  • The crypto.fips property has been deprecated. [6e7992e8b8]

• Dependencies

  • V8 has been updated to 6.6. [9daebb48d6]
  • OpenSSL has been updated to 1.1.0h. [66cb29e646]

• EventEmitter

  • The EventEmitter.prototype.off() method has been added as an alias for EventEmitter.prototype.removeListener(). [3bb6f07d52]

• File System

  • The fs.promises API provides experimental promisified versions of the fs functions. [329fc78e49]
  • Invalid path errors are now thrown synchronously. [d8f73385e2]
  • The fs.readFile() method now partitions reads to avoid thread pool exhaustion. [67a4ce1c6e]

• HTTP

  • Processing of HTTP Status codes 100, 102-199 has been improved. [baf8495078]
  • Multi-byte characters in URL paths are now forbidden. [b961d9fd83]

• N-API

  • The n-api is no longer experimental. [cd7d7b15c1]

• Net

  • The 'close' event will be emitted after 'end'. [9b7a6914a7]

• Perf_hooks

  • The PerformanceObserver class is now an AsyncResource and can be monitored using async_hooks. [009e41826f]
  • Trace events are now emitted for performance events. [9e509b622b]
  • The performance API has been simplified. [2ec6995555]
  • Performance milestone marks will be emitted as trace events. [96cb4fb795]

• Process

  • Using non-string values for process.env is deprecated. [5826fe4e79]
  • The process.assert() method is deprecated. [703e37cf3f]

• REPL

  • REPL now experimentally supports top-level await when using the --experimental-repl-await flag. [eeab7bc068]
  • The previously deprecated “magic mode” has been removed. [4893f70d12]
  • The previously deprecated NODE_REPL_HISTORY_FILE environment variable has been removed. [60c9ad7979]
  • Proxy objects are shown as Proxy objects when inspected. [90a43906ab]

• Streams

  • The 'readable' event is now always deferred with nextTick. [1e0f3315c7]
  • A new pipeline() method has been provided for building end-to-data stream pipelines. [a5cf3feaf1]
  • Experimental support for async for-await has been added to stream.Readable. [61b4d60c5d]

• Timers

  • The enroll() and unenroll() methods have been deprecated. [68783ae0b8]

• TLS

  • The tls.convertNONProtocols() method has been deprecated. [9204a0db6e]
  • Support for NPN (next protocol negotiation) has been dropped. [5bfbe5ceae]
  • The ecdhCurve default is now 'auto'. [af78840b19]

• Trace Events

  • A new trace_events top-level module allows trace event categories to be enabled/disabld at runtime. [da5d818a54]

• URL

  • The WHATWG URL API is now a global. [312414662b]

• Util

  • util.types.is[…] type checks have been added. [b20af8088a]
  • Support for bigint formatting has been added to util.inspect(). [39dc947409]

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