Now let's working on v0.11.x, and in the past 2 months, we have the following features summary.

Notable Changes

• n-api: support thread-safe function, new.target and TypedArray.
• n-api: upgrade the header and test suite to LTS(10.13.0).
• child_process: introduce binary protocol to optimize the ipc performance by 5~6x.
• promise: optimize the performance by 70% via freeze objects.
• jerry: implement the source info, that optimizes the backtrace prints.
• process: add signal events.
• process: add shebang parser.
• jerry: support the keywords class and extends.
• os: support {get,set}Priority methods.

Modules

N-API

• n-api: asserts on execution thread
• n-api: napi_make_callback triggers next tick
• n-api: fix complete callback segv/ticks on async-work
• n-api: code is optional on create error
• n-api: implement new.target
• n-api: thread safe functions
• n-api: update headers/test suites to LTS(10.13.0)
• n-api: ArrayBuffer/TypedArray support

Events

• events: optimize the create object method
• events: emit newListener on new listener
• events: emit 'removeListener' after remove listener
• events: limit listener number
• events: cannot read property 'newListener' of undefined

JerryScript

• debugger: Error.stack deal with top level source
• jerry: escape slash in JSON.stringify()
• timer: update looper time before creating timer
• jerry: ref to function self should not create new object
• jerry: pass regression-test-issue-2105 for heapdump
• jerry: set prototype/constructor for external functions
• jerry: merge a59cf4f from upstream to optimize the function call
• jerry: use separate profile instead of polluting jerry
• jerry: implement source info and remove function_name feature
• jerry: add class basic support
• jerry: Date.now shall return an integer
• jerry: reduce the argument count of ecma_op_object_get_property_names
• jerry: finalize hint of array buffers
• jerry: rework jerry_parse function
• jerry: pass and enable jerry-test-suite
• jerry: implement ES2015 class feature (part II.)

Process

• process: add signal events support
• process: add shebang parser supports
• process: handle all tick callbacks in the same tick when tick callback
• process: invokes setImmediate on uv check phase
• process: set immediate shall start an idle handle to activate uv_loop

Others

• mqtt: optimize stability
• promise: emit unhandledRejection on process
• http, https: clean the writableState buffer before destroy
• mqtt: clean up the keepalive timer when disconnecting
• websocket: fix the crash due to http exception
• tls, mqtts: fix connection not be actively disconnected
• promise: optimize the performance on .then and static resolve
• mqtt: add an internal state isSocketConnected
• dbus: correct the buffer copy size in encoding message
• tuv: drop code path for epoll_pwait-less kernels
• uv, os: implement os.{get,set}Priority functions

Next Version

At the newer v0.11.x, the keyword is the "community", we gonna resolve the following issues:

• How to work together with Node.js core, include N-API and core API implementations.
• How to work together with Node.js community, namely NPM, need to view(filter) which packages are available and proper for low-end devices, and make some pop packages work on ShadowNode and these devices.
• How to work together with JerryScript core.

The other hand, for developers we will continue to optimize the development experience by the following goals:

• Support the release of more platforms: armhf and aarch64.
• Support the Chrome/VSCode Debugger for jerryscript-debugger-ts.
• Install via snapcraft on ubuntu boards directly.