go1.14.html

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<h2 id="introduction">DRAFT RELEASE NOTES — Introduction to Go 1.14</h2>

<p>
  <strong>
    Go 1.14 is not yet released. These are work-in-progress
    release notes. Go 1.14 is expected to be released in February 2020.
  </strong>
</p>

<h2 id="language">Changes to the language</h2>

<p>
TODO
</p>

<h2 id="ports">Ports</h2>

<p>
TODO
</p>

<h3 id="nacl">Native Client (NaCl)</h3>

<p><!-- golang.org/issue/30439 -->
  As <a href="go1.13#ports">announced</a> in the Go 1.13 release notes,
  Go 1.14 drops support for the Native Client platform (<code>GOOS=nacl</code>).
</p>

<h2 id="tools">Tools</h2>

<p>
TODO
</p>

<h3 id="go-command">Go command</h3>

<!-- golang.org/issue/33848 -->
<p>
  When the main module contains a top-level <code>vendor</code> directory and
  its <code>go.mod<code> file specifies <code>go</code> <code>1.14</code> or
  higher, the <code>go</code> command now defaults to <code>-mod=vendor</code>
  for operations that accept that flag. A new value for that flag,
  <code>-mod=mod</code>, causes the <code>go</code> command to instead load
  modules from the module cache (as when no <code>vendor<code> directory is
  present).
</p>

<p>
  When <code>-mod=vendor</code> is set (explicitly or by default), the
  <code>go</code> command now verifies that the main module's
  <code>vendor/modules.txt</code> file is consistent with its
  <code>go.mod</code> file.
</p>

<p><!-- golang.org/issue/32502, golang.org/issue/30345 -->
  The <code>go</code> <code>get</code> command no longer accepts
  the <code>-mod</code> flag. Previously, the flag's setting either
  <a href="https://golang.org/issue/30345">was ignored</a> or
  <a href="https://golang.org/issue/32502">caused the build to fail</a>.
</p>

<p><!-- golang.org/issue/30748 -->
  The <code>go</code> command now includes snippets of plain-text error messages
  from module proxies and other HTTP servers.
  An error message will only be shown if it is valid UTF-8 and consists of only
  graphic characters and spaces.
</p>

<h2 id="runtime">Runtime</h2>

<p>
TODO
</p>


<h2 id="library">Core library</h2>

<p>
TODO
</p>

<dl id="bytes/hash"><dt><a href="/pkg/bytes/hash/">bytes/hash</a></dt>
  <dd>
    <p><!-- CL 186877 -->
      TODO: <a href="https://golang.org/cl/186877">https://golang.org/cl/186877</a>: add hashing package for bytes and strings
    </p>

</dl><!-- bytes/hash -->

<dl id="crypto/tls"><dt><a href="/pkg/crypto/tls/">crypto/tls</a></dt>
  <dd>
    <p><!-- CL 191976 -->
      TODO: <a href="https://golang.org/cl/191976">https://golang.org/cl/191976</a>: remove SSLv3 support
    </p>

    <p><!-- CL 191999 -->
      TODO: <a href="https://golang.org/cl/191999">https://golang.org/cl/191999</a>: remove TLS 1.3 opt-out
    </p>

    <p><!-- CL 174329 -->
      The <code>tls</code> package no longer supports NPN and now only
      supports ALPN. In previous releases it supported both. There are
      no API changes and code should function identically as before.
      Most other clients & servers have already removed NPN support in
      favor of the standardized ALPN.
    </p>

</dl><!-- crypto/tls -->

<dl id="encoding/asn1"><dt><a href="/pkg/encoding/asn1/">encoding/asn1</a></dt>
  <dd>
    <p><!-- CL 126624 -->
      TODO: <a href="https://golang.org/cl/126624">https://golang.org/cl/126624</a>: handle ASN1&#39;s string type BMPString
    </p>

</dl><!-- encoding/asn1 -->

<dl id="mime"><dt><a href="/pkg/mime/">mime</a></dt>
  <dd>
    <p><!-- CL 186927 -->
      TODO: <a href="https://golang.org/cl/186927">https://golang.org/cl/186927</a>: update type of .js and .mjs files to text/javascript
    </p>

</dl><!-- mime -->

<dl id="plugin"><dt><a href="/pkg/plugin/">plugin</a></dt>
  <dd>
    <p><!-- CL 191617 -->
      TODO: <a href="https://golang.org/cl/191617">https://golang.org/cl/191617</a>: add freebsd/amd64 plugin support
    </p>

</dl><!-- plugin -->

<dl id="reflect">

<dt><a href="/pkg/reflect/">reflect</a></dt>
  <dd>
    <p><!-- CL 85661 -->
      <a href="/pkg/reflect#StructOf"><code>StructOf</code></a> now
      supports creating struct types with unexported fields, by
      setting the <code>PkgPath</code> field in
      a <code>StructField</code> element.
    </p>

</dl><!-- reflect -->

<dl id="runtime"><dt><a href="/pkg/runtime/">runtime</a></dt>
  <dd>
    <p><!-- CL 187739 -->
      TODO: <a href="https://golang.org/cl/187739">https://golang.org/cl/187739</a>: treat CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, CTRL_SHUTDOWN_EVENT as SIGTERM on Windows
    </p>

    <p><!-- CL 188297 -->
      TODO: <a href="https://golang.org/cl/188297">https://golang.org/cl/188297</a>: don&#39;t forward SIGPIPE on macOS
    </p>

</dl><!-- runtime -->

<h3 id="minor_library_changes">Minor changes to the library</h3>

<p>
  As always, there are various minor changes and updates to the library,
  made with the Go 1 <a href="/doc/go1compat">promise of compatibility</a>
  in mind.
</p>

<p>
TODO
</p>