<?xml version="1.0"?>

<!--
  Copyright (C) Nginx, Inc.
  -->

<!DOCTYPE article SYSTEM "../../../../dtd/article.dtd">

<article name="Changes"
        link="/en/docs/njs/changes.html"
        lang="en"
        rev="14"
        toc="no">

<section id="njs0.2.8" name="Changes with 0.2.8">

<para>
Release Date:
26 February 2019
</para>

<para>
nginx modules:
<list type="bullet">

<listitem>
<para>
Change:
properties of HTTP request deprecated in <link id="njs0.2.2">0.2.2</link>
are removed.
</para>
</listitem>

<listitem>
<para>
Feature:
added support for delete operation in
<link doc="reference.xml" id="r_headers_out"><literal>r.headersOut{}</literal></link>.
</para>
</listitem>

<listitem>
<para>
Feature:
added support for setting nginx variables.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed
<link doc="reference.xml" id="subrequest"><literal>r.subrequest()</literal></link>
for empty body value.
</para>
</listitem>

<listitem>
<para>
Improvement:
setting special response headers in
<link doc="reference.xml" id="r_headers_out"><literal>r.headersOut{}</literal></link>.
</para>
</listitem>

</list>
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
added labels support.
</para>
</listitem>

<listitem>
<para>
Feature:
added <literal>setImmediate()</literal> method.
</para>
</listitem>

<listitem>
<para>
Feature:
added support for shorthand property names for Object literals.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Function.prototype.bind()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed parsing of string literals containing newline characters.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed line number in reporting variable reference errors.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed creation of long UTF8 strings.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed
setting special response headers in
<link doc="reference.xml" id="string_split"><literal>String.prototype.split()</literal></link>
for Unicode strings.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed heap-buffer-overflow in
<link doc="reference.xml" id="string_split"><literal>String.prototype.split()</literal></link>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Array.prototype.fill()</literal>.
Thanks to Artem S. Povalyukhin.
</para>
</listitem>

<listitem>
<para>
Improvement:
code related to function invocation is refactored.
Thanks to 洪志道 (Hong Zhi Dao).
</para>
</listitem>

<listitem>
<para>
Improvement:
code related to variables is refactored.
Thanks to 洪志道 (Hong Zhi Dao).
</para>
</listitem>

<listitem>
<para>
Improvement: parser is refactored.
Thanks to 洪志道 (Hong Zhi Dao).
</para>
</listitem>

<listitem>
<para>
Improvement:
reporting filenames in exceptions.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.7" name="Changes with 0.2.7">

<para>
Release Date:
25 December 2018
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
rest parameters syntax (destructuring is not supported).
Thanks to Alexander Pyshchev.
</para>
</listitem>

<listitem>
<para>
Feature:
added
<link doc="reference.xml" id="object_entries"><literal>Object.entries()</literal></link>
method.
</para>
</listitem>

<listitem>
<para>
Feature:
added
<link doc="reference.xml" id="object_values"><literal>Object.values()</literal></link>
method.
</para>
</listitem>

<listitem>
<para>
Improvement:
code generator refactored and simplified.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed automatic semicolon insertion.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed assignment expression from compound assignment.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed comparison of Byte and UTF8 strings.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed type of iteration variable in for-in with array values.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed building on platforms without librt.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.6" name="Changes with 0.2.6">

<para>
Release Date:
27 November 2018
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
making built-in prototypes mutable.
</para>
</listitem>

<listitem>
<para>
Feature:
making global object mutable.
</para>
</listitem>

<listitem>
<para>
Feature:
<literal>console.time()</literal> and
<literal>console.timeEnd()</literal> methods.
</para>
</listitem>

<listitem>
<para>
Feature:
allowing variables and functions to be redeclared.
</para>
</listitem>

<listitem>
<para>
Feature:
extending <literal>Object.defineProperty()</literal> spec conformance.
</para>
</listitem>

<listitem>
<para>
Feature:
introduced quiet mode for CLI to handle simple expressions from stdin.
</para>
</listitem>

<listitem>
<para>
Feature:
introduced compact form of backtraces to handle stack overflows.
</para>
</listitem>

<listitem>
<para>
Improvement:
improved wording for various exceptions.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed closure values handling.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed equality operator for various value types.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed handling of “this” keyword in various scopes.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed handling non-object values in <literal>Object.keys()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed parsing of throw statement inside <literal>if</literal> statement.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed parsing of newline after throw statement.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed parsing of statements in if statement without newline.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed size <literal>uint32_t</literal> overflow
in <literal>njs_array_expand()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>typeof</literal> operator
for <literal>object_value</literal> type.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.5" name="Changes with 0.2.5">

<para>
Release Date:
30 October 2018
</para>

<para>
nginx modules:
<list type="bullet">

<listitem>
<para>
Bugfix:
fixed counting pending events in stream module.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>s.off()</literal> in stream module.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed processing of data chunks in <literal>js_filter</literal> in stream module.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed http <literal>status</literal> and
<literal>contentType</literal> getter in http module.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed http response and parent getters in http module.
</para>
</listitem>

</list>
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
arguments object support.
</para>
</listitem>

<listitem>
<para>
Feature:
non-integer fractions support.
</para>
</listitem>

<listitem>
<para>
Improvement:
handling non-array values in <literal>Array.prototype.slice()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Array.prototype.length</literal> setter
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>njs_array_alloc()</literal> for length > 2**31.
</para>
</listitem>

<listitem>
<para>
Bugfix:
handling int overflow in <literal>njs_array_alloc()</literal> on 32bit archs.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed code size mismatch error message.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed delete operator in a loop.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Object.getOwnPropertyDescriptor()</literal> for complex object
(inherited from <literal>Array</literal> and <literal>string</literal> values).
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Object.prototype.hasOwnProperty()</literal>
for non-object properties
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.4" name="Changes with 0.2.4">

<para>
Release Date:
18 September 2018
</para>

<para>
nginx modules:
<list type="bullet">

<listitem>
<para>
Change:
stream module handlers refactored.
</para>

<para>
New methods and properties:
<link doc="reference.xml" id="s_on">s.on()</link>,
<link doc="reference.xml" id="s_off">s.off()</link>,
<link doc="reference.xml" id="s_allow">s.allow()</link>,
<link doc="reference.xml" id="s_done">s.done()</link>,
<link doc="reference.xml" id="s_decline">s.decline()</link>,
<link doc="reference.xml" id="s_deny">s.deny()</link>.
</para>

<para>
Removed properties of the
<link doc="reference.xml" id="stream">Stream</link> object:
<literal>s.OK</literal>,
<literal>s.ABORT</literal>,
<literal>s.AGAIN</literal>,
<literal>s.DECLINED</literal>,
<literal>s.ERROR</literal>
(replaced with
<link doc="reference.xml" id="s_allow">s.allow()</link>,
<link doc="reference.xml" id="s_done">s.done()</link>,
<link doc="reference.xml" id="s_deny">s.deny()</link>).
</para>

<para>
<literal>s.buffer</literal>
(for reading replaced with data argument of
the corresponding callback, for writing use
<link doc="reference.xml" id="s_send">s.send()</link>).
</para>

<para>
<literal>s.fromUpstream</literal>
(replaced with a callback for a corresponding event).
</para>

<para>
<literal>s.eof</literal>
(replaced with <literal></literal>
<link doc="reference.xml" id="s_on_callback_last">flags.last</link>).
</para>

</listitem>

</list>
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
added <literal>Function.prototype.length</literal>.
</para>
</listitem>

<listitem>
<para>
Feature:
introduced sandboxing mode.
</para>
</listitem>

<listitem>
<para>
Improvement:
added exception strings where appropriate.
</para>
</listitem>

<listitem>
<para>
Improvement:
improved wording for primitive type conversion exception.
</para>
</listitem>

<listitem>
<para>
Bugfix:
throwing <literal>TypeError</literal>
for attempts to change frozen properties.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Object.defineProperty()</literal> for existing properties.
</para>
</listitem>

<listitem>
<para>
Bugfix:
respecting the enumerable attribute while iterating by for in.
</para>
</listitem>

<listitem>
<para>
Bugfix:
respecting writable attribute for property handlers.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed exception handling in arguments of a function.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Object.prototype.toString</literal> for different value types.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Object()</literal> constructor for object types arguments.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed comparison of objects and strings.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>String.slice()</literal> for undefined arguments.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.3" name="Changes with 0.2.3">

<para>
Release Date:
31 July 2018
</para>

<para>
nginx modules:
<list type="bullet">

<listitem>
<para>
Bugfix:
making a subrequest from a <literal>Reply</literal> object caused
a segmentation fault.
</para>
</listitem>

<listitem>
<para>
Bugfix:
getting the parent property of the main
<link doc="reference.xml" id="http">HTTP Request</link>
object caused a segmentation fault.
</para>
</listitem>

</list>
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
added the pretty string representation for values.
</para>
</listitem>

<listitem>
<para>
Feature:
correctly printing floating point numbers.
</para>
</listitem>

<listitem>
<para>
Feature:
correctly parsing floating point numbers.
</para>
</listitem>

<listitem>
<para>
Feature:
<link doc="reference.xml" id="string_bytesfrom">String.bytesFrom()</link> method
(decoding <literal>hex</literal>,
<literal>base64</literal>,
<literal>base64url</literal> into a byte string).
</para>
</listitem>

<listitem>
<para>
Feature:
<link doc="reference.xml" id="string_padstart">String.padStart()</link> and
<link doc="reference.xml" id="string_padend">String.padEnd()</link> methods.
</para>
</listitem>

<listitem>
<para>
Feature:
added support of binary literals.
</para>
</listitem>

<listitem>
<para>
Improvement:
added information about illegal token in number parsing.
</para>
</listitem>

<listitem>
<para>
Improvement:
allowed uppercased <literal>O</literal> in octal literal values.
</para>
</listitem>

<listitem>
<para>
Improvement:
added support for multiple arguments in <literal>console.log()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed applying <literal>call()</literal> to methods of external values.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed addition operator applied to an object.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed exception handling in <literal>njs_vm_value_to_ext_string()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>Number()</literal> with boolean, null and undefined arguments.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed error handling of setting non-numeric <literal>Array.length</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed autocompletion for global objects.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.2" name="Changes with 0.2.2">

<para>
Release Date:
19 June 2018
</para>

<para>
nginx modules:
<list type="bullet">

<listitem>
<para>
Change:
merged HTTP <literal>Response</literal> and <literal>Reply</literal>
into <link doc="reference.xml" id="http">HTTP Request</link>.
New members of <literal>Request</literal>:

<list type="bullet">

<listitem>
<para>
<literal>req.status</literal> (<literal>res.status</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.parent</literal> (<literal>reply.parent</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.requestBody</literal> (<literal>req.body</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.responseBody</literal> (<literal>reply.body</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.headersIn</literal> (<literal>req.headers</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.headersOut</literal> (<literal>res.headers</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.sendHeader()</literal> (<literal>res.sendHeader()</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.send()</literal> (<literal>res.send()</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.finish()</literal> (<literal>res.finish()</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.return()</literal> (<literal>res.return()</literal>)
</para>
</listitem>

</list>
Deprecated members of <literal>Request</literal>:

<list type="bullet">

<listitem>
<para>
<literal>req.body</literal> (use <literal>req.requestBody</literal>
or <literal>req.responseBody</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.headers</literal> (use <literal>req.headersIn</literal>
or <literal>req.headersOut</literal>)
</para>
</listitem>

<listitem>
<para>
<literal>req.response</literal>
</para>
</listitem>

</list>
The deprecated properties will be removed in next releases.
</para>
</listitem>

<listitem>
<para>
Feature:
HTTP <link doc="reference.xml" id="r_internal_redirect">internalRedirect()</link>
method.
</para>
</listitem>

</list>
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Bugfix:
fixed heap-buffer-overflow in <literal>crypto.createHmac()</literal>.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.1" name="Changes with 0.2.1">

<para>
Release Date:
31 May 2018
</para>

<para>
nginx modules:
<list type="bullet">

<listitem>
<para>
Feature:
HTTP request body getter.
</para>
</listitem>

<listitem>
<para>
Improvement:
moved njs vm to the <literal>main</literal> configuration.
</para>
</listitem>

<listitem>
<para>
Improvement:
improved logging for
<link doc="../http/ngx_http_js_module.xml" id="js_set"/> and
<link doc="../http/ngx_http_js_module.xml" id="js_content"/> directives.
</para>
</listitem>

<listitem>
<para>
Improvement:
setting status code to 500 by default in the
<link doc="../http/ngx_http_js_module.xml" id="js_content"/> handler
</para>
</listitem>

<listitem>
<para>
Improvement:
added the debug for the returned status code in
<link doc="../http/ngx_http_js_module.xml" id="js_content"/> handler
</para>
</listitem>

<listitem>
<para>
Bugfix: fixed error logging in
<link doc="../http/ngx_http_js_module.xml" id="js_include"/>.
</para>
</listitem>

</list>
</para>

<para>
Core:
<list type="bullet">

<listitem>
<para>
Feature:
added array length setter.
</para>
</listitem>

<listitem>
<para>
Improvement:
public header <literal>cleanup. njscript.h</literal> is renamed to
<literal>njs.h</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed crypto <literal>update()</literal> method after 
<literal>digest()</literal> is called.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>crypto.createHmac()</literal> for keys with size &lt;= alg size
and &gt; 64.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>JSON.stringify()</literal> for arrays with empty cells.
</para>
</listitem>

<listitem>
<para>
 Bugfix:
fixed exception type for unsupported types in
<literal>JSON.stringify()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed handling of undefined arguments of functions.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed handling of missing <literal>arg</literal> of
<literal>Object.getOwnPropertyDescriptor()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed handling of properties in
<literal>Object.getOwnPropertyDescriptor()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed the writeable flag of <literal>Array.length</literal> property.
</para>
</listitem>

<listitem>
<para>
Bugfix: fixed return value type of <literal>clearTimeout()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
fixed <literal>njs_vm_external_bind()</literal>.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.2.0" name="Changes with 0.2.0">

<para>
Release Date:
3 Apr 2018
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
reporting njs version by CLI.
</para>
</listitem>

<listitem>
<para>
Feature:
textual description for type converting exceptions.
</para>
</listitem>

<listitem>
Feature:
<literal>setTimeout()</literal> and
<literal>clearTimeout()</literal> methods.
</listitem>

<listitem>
<para>
Feature:
Byte string to
<literal>hex</literal>,
<literal>base64</literal>,
<literal>base64url</literal> encodings.
</para>
</listitem>

<listitem>
<para>
Feature:
<link url="https://nodejs.org/api/crypto.html#crypto_class_hash">Node.js style</link>
<literal>Crypto</literal> methods.
</para>
</listitem>

<listitem>
<para>
Feature:
HTTP and stream
<literal>warn()</literal> and
<literal>error()</literal> methods.
</para>
</listitem>

<listitem>
<para>
Feature:
HTTP <literal>subrequest()</literal> method.
</para>
</listitem>

<listitem>
<para>
Feature:
HTTP <literal>return()</literal> method.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed in the core and
interactive shell.
</para>
</listitem>

</list>
</para>

</section>

<section id="njs0.1.15" name="Changes with 0.1.15">

<para>
Release Date:
20 Nov 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
<literal>Error</literal>,
<literal>EvalError</literal>,
<literal>InternalError</literal>,
<literal>RangeError</literal>,
<literal>ReferenceError</literal>,
<literal>SyntaxError</literal>,
<literal>TypeError</literal>,
<literal>URIError</literal> objects.
</para>
</listitem>

<listitem>
<para>
Feature:
octal literals support.
</para>
</listitem>

<listitem>
<para>
Feature:
<link url="https://nodejs.org/api/fs.html#fs_file_system">Node.js style</link>
<literal>File system</literal> access methods:
<literal>fs.readFile()</literal>,
<literal>fs.readFileSync()</literal>,
<literal>fs.appendFile()</literal>,
<literal>fs.appendFileSync()</literal>,
<literal>fs.writeFile()</literal>,
<literal>fs.writeFileSync()</literal>.
</para>
</listitem>

<listitem>
<para>
Feature:
nginx modules print backtrace on exception.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.14" name="Changes with 0.1.14">

<para>
Release Date:
09 Oct 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
JSON object.
</para>
</listitem>

<listitem>
<para>
Feature:
object level completions in interactive shell.
</para>
</listitem>

<listitem>
<para>
Feature:
various configure improvements.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs have been fixed in the core and
interactive shell.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.13" name="Changes with 0.1.13">

<para>
Release Date:
31 Aug 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
<literal>console.log()</literal> and
<literal>console.help()</literal>
methods in interactive shell.
</para>
</listitem>

<listitem>
<para>
Feature:
interactive shell prints backtrace on exception.
</para>
</listitem>

<listitem>
<para>
Feature:
interactive shell by default
if <literal>libedit</literal> is available.
</para>
</listitem>

<listitem>
<para>
Bugfix:
processing of large files from
<literal>stdin</literal> in command line mode.
</para>
</listitem>

<listitem>
<para>
Bugfix:
improved <literal>editline</literal> detection.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.12" name="Changes with 0.1.12">

<para>
Release Date:
08 Aug 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
Interactive shell.
</para>
</listitem>

<listitem>
<para>
Bugfix:
in <literal>Object.isSealed()</literal>.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.11" name="Changes with 0.1.11">

<para>
Release Date:
27 Jun 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
<literal>Object.keys()</literal>,
<literal>Object.prototype.hasOwnProperty()</literal>
methods.
</para>
</listitem>

<listitem>
<para>
Feature:
<literal>Object.defineProperty()</literal>,
<literal>Object.defineProperties()</literal>,
<literal>Object.getOwnPropertyDescriptor()</literal>
methods.
</para>
</listitem>

<listitem>
<para>
Feature:
<literal>Object.getPrototypeOf()</literal>,
<literal>Object.prototype.isPrototypeOf()</literal>
methods.
</para>
</listitem>

<listitem>
<para>
Feature:
<literal>Object.preventExtensions()</literal>,
<literal>Object.isExtensible()</literal>,
<literal>Object.freeze()</literal>,
<literal>Object.isFrozen()</literal>,
<literal>Object.seal()</literal>,
<literal>Object.isSealed()</literal>
methods.
</para>
</listitem>

<listitem>
<para>
Feature:
scientific notation (<literal>3.35e10</literal>) literals support.
</para>
</listitem>

<listitem>
<para>
Feature:
hexadecimal (<literal>0x1123</literal>) literals support.
</para>
</listitem>

<listitem>
<para>
Bugfix:
processing of large array indexes.
</para>
</listitem>

<listitem>
<para>
Bugfix:
in <literal>parseInt()</literal> and
<literal>Date.parse()</literal>.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.10" name="Changes with 0.1.10">

<para>
Release Date:
04 Apr 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Feature:
nested functions and function closures.
</para>
</listitem>

<listitem>
<para>
Feature:
<literal>Array.of()</literal>,
<literal>Array.prototype.fill()</literal>,
<literal>Array.prototype.find()</literal>,
<literal>Array.prototype.findIndex()</literal>
methods.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs and segmentation faults have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.9" name="Changes with 0.1.9">

<para>
Release Date:
01 Feb 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Bugfix:
global variables were not initialized when njs was used
in nginx.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.8" name="Changes with 0.1.8">

<para>
Release Date:
24 Jan 2017
</para>

<para>
<list type="bullet">

<listitem>
<para>
Change:
the <literal>strict</literal> mode is enforced,
variables must be explicitly declared.
</para>
</listitem>


<listitem>
<para>
Feature:
<literal>for</literal> and
<literal>for-in</literal> loops support variable declaration.
</para>
</listitem>

<listitem>
<para>
Bugfix:
global and function scopes have been fixed.
</para>
</listitem>

<listitem>
<para>
Bugfix:
now <literal>for-in</literal> loop does not discard the last value
of property variable.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs and segmentation faults have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.7" name="Changes with 0.1.7">

<para>
Release Date:
27 Dec 2016
</para>

<para>
<list type="bullet">

<listitem>
<para>
Change:
the <link doc="../http/ngx_http_js_module.xml" id="js_include"/> directive
has been disabled at server and location levels.
</para>
</listitem>

<listitem>
<para>
Feature:
exponentiation operators.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs and segmentation faults have been fixed.
</para>
</listitem>

</list>
</para>

</section>


<section id="njs0.1.6" name="Changes with 0.1.6">

<para>
Release Date:
13 Dec 2016
</para>

<para>
<list type="bullet">

<listitem>
<para>
Change:
the <link doc="../http/ngx_http_js_module.xml" id="js_set"/> directive
has been disabled at server and location levels.
</para>
</listitem>

<listitem>
<para>
Feature:
ES6 <literal>Math</literal> methods.
</para>
</listitem>

<listitem>
<para>
Bugfix:
miscellaneous bugs and segmentation faults have been fixed.
</para>
</listitem>

</list>
</para>

</section>

</article>