2020-11-08: - improved function parameter initializers- added std.setenv(), std.unsetenv() and std.getenviron()- added JS_EvalThis()- misc bug fixes 2020-09-06: - added logical assignment operators- added IsHTMLDDA support- faster for-of loops- os.Worker now takes a module filename as parameter- qjsc: added -D option to compile dynamically loaded modules or workers- misc bug fixes 2020-07-05: - modified JS_GetPrototype() to return a live value- REPL: support unicode characters larger than 16 bits- added os.Worker- improved object serialization- added std.parseExtJSON- misc bug fixes 2020-04-12: - added cross realm support- added AggregateError and Promise.any- added env, uid and gid options in os.exec()- misc bug fixes 2020-03-16: - reworked error handling in std and os libraries: suppressed I/O  exceptions in std FILE functions and return a positive errno value  when it is explicit- output exception messages to stderr- added std.loadFile(), std.strerror(), std.FILE.prototype.tello()- added JS_GetRuntimeOpaque(), JS_SetRuntimeOpaque(), JS_NewUint32()- updated to Unicode 13.0.0- misc bug fixes 2020-01-19: - keep CONFIG_BIGNUM in the makefile- added os.chdir()- qjs: added -I option- more memory checks in the bignum operations- modified operator overloading semantics to be closer to the TC39  proposal- suppressed "use bigint" mode. Simplified "use math" mode- BigDecimal: changed suffix from 'd' to 'm'- misc bug fixes 2020-01-05: - always compile the bignum code. Added '--bignum' option to qjs.- added BigDecimal- added String.prototype.replaceAll- misc bug fixes 2019-12-21: - added nullish coalescing operator (ES2020)- added optional chaining (ES2020)- removed recursions in garbage collector- test stack overflow in the parser- improved backtrace logic- added JS_SetHostPromiseRejectionTracker()- allow exotic constructors- improved c++ compatibility- misc bug fixes 2019-10-27: - added example of C class in a module (examples/test_point.js)- added JS_GetTypedArrayBuffer()- misc bug fixes 2019-09-18: - added os.exec and other system calls- exported JS_ValueToAtom()- qjsc: added 'qjsc_' prefix to the generated C identifiers- added cross-compilation support- misc bug fixes 2019-09-01: - added globalThis- documented JS_EVAL_FLAG_COMPILE_ONLY- added import.meta.url and import.meta.main- added 'debugger' statement- misc bug fixes 2019-08-18: - added os.realpath, os.getcwd, os.mkdir, os.stat, os.lstat,  os.readlink, os.readdir, os.utimes, std.popen- module autodetection- added import.meta- misc bug fixes 2019-08-10: - added public class fields and private class fields, methods and  accessors (TC39 proposal)- changed JS_ToCStringLen() prototype- qjsc: handle '-' in module names and modules with the same filename- added std.urlGet- exported JS_GetOwnPropertyNames() and JS_GetOwnProperty()- exported some bigint C functions- added support for eshost in run-test262- misc bug fixes 2019-07-28: - added dynamic import- added Promise.allSettled- added String.prototype.matchAll- added Object.fromEntries- reduced number of ticks in await- added BigInt support in Atomics- exported JS_NewPromiseCapability()- misc async function and async generator fixes- enabled hashbang support by default 2019-07-21: - updated test262 tests- updated to Unicode version 12.1.0- fixed missing Date object in qjsc- fixed multi-context creation- misc ES2020 related fixes- simplified power and division operators in bignum extension- fixed several crash conditions 2019-07-09: - first public release