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Updates golang#23122

Change-Id: I2d6769101cdd580901cb08a3027d787fa438d4bc
Reviewed-on: https://go-review.googlesource.com/117975
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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@andybons
andybons committed Jun 12, 2018
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<!--{
"Title": "Go 1.11 Release Notes",
"Path": "/doc/go1.11",
"Template": true
}-->

<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
<code>hello</code> <code>world</code>.
Do not send CLs removing the interior tags from such phrases.
-->

<style>
ul li { margin: 0.5em 0; }
</style>

<h2 id="introduction">DRAFT RELEASE NOTES - Introduction to Go 1.11</h2>

<p>
<strong>
Go 1.11 is not yet released. These are work-in-progress
release notes. Go 1.11 is expected to be released in August 2018.
</strong>
</p>

<p>
The latest Go release, version 1.11, arrives six months after <a href="go1.10">Go 1.10</a>.
Most of its changes are in the implementation of the toolchain, runtime, and libraries.
As always, the release maintains the Go 1 <a href="/doc/go1compat.html">promise of compatibility</a>.
We expect almost all Go programs to continue to compile and run as before.
</p>

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

<p>
There are no changes to the language specification.
</p>

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

<p>
As <a href="go1.10#ports">announced in the Go 1.10 release notes</a>, Go 1.11 now requires
OpenBSD 6.2 or later, macOS 10.10 Yosemite or later, or Windows 7 or later;
Support for previous versions of these operating systems has been removed.
</p>

<p>
There are <a href="https://golang.org/issue/25206">known issues</a> with NetBSD on i386 hardware.
</p>

<p><!-- CL 107935 -->
TODO: PPC64LE race detector support
</p>

<h3 id="wasm">WebAssembly</h3>
<p>
Go 1.11 adds an experimental port to WebAssembly (<code>wasm/js</code>).
</p>

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

<p>
All of the changes to the standard library are minor.
</p>

<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>

<!-- CL 113315: https://golang.org/cl/113315: cmd/asm: enable AVX512 -->
<!-- CL 100459: https://golang.org/cl/100459: cmd/compile: reject type switch with guarded declaration and no cases -->
<!-- CL 106797: https://golang.org/cl/106797: cmd/compile: enable indexed export format by default -->
<!-- CL 108475: https://golang.org/cl/108475: cmd/compile: add softfloat support to mips64{,le} -->
<!-- CL 97375: https://golang.org/cl/97375: cmd/compile, cmd/compile/internal/syntax: print relative column info -->
<!-- CL 110395: https://golang.org/cl/110395: cmd/go, cmd/compile: use Windows response files to avoid arg length limits -->
<!-- CL 107475: https://golang.org/cl/107475: cmd/internal/obj/arm, runtime: delete old ARM softfloat code -->
<!-- CL 112436: https://golang.org/cl/112436: cmd/pprof: add readline support similar to upstream -->
<dl id="all"><dt><a href="/pkg/all/">all</a></dt>
<dd>
<p><!-- CL 93875 -->
TODO: <a href="https://golang.org/cl/93875">https://golang.org/cl/93875</a>: enable c-shared/c-archive support for freebsd/amd64
</p>

<p><!-- CL 94255 -->
TODO: <a href="https://golang.org/cl/94255">https://golang.org/cl/94255</a>: drop support for Windows Vista or below (Windows XP)
</p>

<p><!-- CL 115038 -->
TODO: <a href="https://golang.org/cl/115038">https://golang.org/cl/115038</a>: remove support for macOS 10.9 and earlier
</p>

</dl><!-- all -->

<dl id="crypto"><dt><a href="/pkg/crypto/">crypto</a></dt>
<dd>
<p><!-- CL 64451 -->
TODO: <a href="https://golang.org/cl/64451">https://golang.org/cl/64451</a>: randomly read an extra byte of randomness in some places.
</p>

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

<dl id="crypto/cipher"><dt><a href="/pkg/crypto/cipher/">crypto/cipher</a></dt>
<dd>
<p><!-- CL 48510, CL 116435 -->
TODO: <a href="https://golang.org/cl/48510">https://golang.org/cl/48510</a>: add NewGCMWithTagSize for custom tag sizes.
</p>

</dl><!-- crypto/cipher -->

<dl id="crypto/rsa"><dt><a href="/pkg/crypto/rsa/">crypto/rsa</a></dt>
<dd>
<p><!-- CL 103876 -->
TODO: <a href="https://golang.org/cl/103876">https://golang.org/cl/103876</a>: add PublicKey.Size accessor
</p>

</dl><!-- crypto/rsa -->

<dl id="debug/elf"><dt><a href="/pkg/debug/elf/">debug/elf</a></dt>
<dd>
<p><!-- CL 112115 -->
TODO: <a href="https://golang.org/cl/112115">https://golang.org/cl/112115</a>: add machine and OSABI constants
</p>

</dl><!-- debug/elf -->

<dl id="encoding/asn1"><dt><a href="/pkg/encoding/asn1/">encoding/asn1</a></dt>
<dd>
<p><!-- CL 110561 -->
TODO: <a href="https://golang.org/cl/110561">https://golang.org/cl/110561</a>: allow Marshaling and Unmarshaling private tag class
</p>

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

<dl id="encoding/base32"><dt><a href="/pkg/encoding/base32/">encoding/base32</a></dt>
<dd>
<p><!-- CL 112516 -->
TODO: <a href="https://golang.org/cl/112516">https://golang.org/cl/112516</a>: handle surplus padding consistently
</p>

</dl><!-- encoding/base32 -->

<dl id="encoding/csv"><dt><a href="/pkg/encoding/csv/">encoding/csv</a></dt>
<dd>
<p><!-- CL 99696 -->
TODO: <a href="https://golang.org/cl/99696">https://golang.org/cl/99696</a>: disallow quote for use as Comma
</p>

</dl><!-- encoding/csv -->

<dl id="go/build, runtime/internal/sys"><dt><a href="/pkg/go/build, runtime/internal/sys/">go/build, runtime/internal/sys</a></dt>
<dd>
<p><!-- CL 106256 -->
TODO: <a href="https://golang.org/cl/106256">https://golang.org/cl/106256</a>: reserve RISC-V arch names
</p>

</dl><!-- go/build, runtime/internal/sys -->

<dl id="image/gif"><dt><a href="/pkg/image/gif/">image/gif</a></dt>
<dd>
<p><!-- CL 93076 -->
TODO: <a href="https://golang.org/cl/93076">https://golang.org/cl/93076</a>: support non-looping animated gifs (LoopCount=-1)
</p>

</dl><!-- image/gif -->

<dl id="io/ioutil"><dt><a href="/pkg/io/ioutil/">io/ioutil</a></dt>
<dd>
<p><!-- CL 105675 -->
TODO: <a href="https://golang.org/cl/105675">https://golang.org/cl/105675</a>: change TempFile prefix to a pattern
</p>

</dl><!-- io/ioutil -->

<dl id="math/big"><dt><a href="/pkg/math/big/">math/big</a></dt>
<dd>
<p><!-- CL 74851 -->
TODO: <a href="https://golang.org/cl/74851">https://golang.org/cl/74851</a>: speed-up addMulVVW on amd64
</p>

</dl><!-- math/big -->

<dl id="net"><dt><a href="/pkg/net/">net</a></dt>
<dd>
<p><!-- CL 72810 -->
TODO: <a href="https://golang.org/cl/72810">https://golang.org/cl/72810</a>: add ListenConfig, Dialer.Control to permit socket opts before listen/dial
</p>

<p><!-- CL 76391 -->
TODO: <a href="https://golang.org/cl/76391">https://golang.org/cl/76391</a>: implement (*syscall.RawConn).Read/Write on Windows
</p>

<p><!-- CL 107715 -->
TODO: <a href="https://golang.org/cl/107715">https://golang.org/cl/107715</a>: add support for splice(2) in (*TCPConn).ReadFrom on Linux
</p>

<p><!-- CL 108297 -->
TODO: <a href="https://golang.org/cl/108297">https://golang.org/cl/108297</a>: calling File leaves the socket in nonblocking mode
</p>

</dl><!-- net -->

<dl id="net/http"><dt><a href="/pkg/net/http/">net/http</a></dt>
<dd>
<p><!-- CL 89275 -->
TODO: <a href="https://golang.org/cl/89275">https://golang.org/cl/89275</a>: don&#39;t sniff Content-type in Server when X-Content-Type-Options:nosniff
</p>

<p><!-- CL 93296 -->
TODO: <a href="https://golang.org/cl/93296">https://golang.org/cl/93296</a>: add StatusMisdirectedRequest (421)
</p>

</dl><!-- net/http -->

<dl id="os"><dt><a href="/pkg/os/">os</a></dt>
<dd>
<p><!-- CL 78835 -->
TODO: <a href="https://golang.org/cl/78835">https://golang.org/cl/78835</a>: add UserCacheDir
</p>

<p><!-- CL 94856 -->
TODO: <a href="https://golang.org/cl/94856">https://golang.org/cl/94856</a>: add ModeIrregular flag
</p>

<p><!-- CL 99337 -->
TODO: <a href="https://golang.org/cl/99337">https://golang.org/cl/99337</a>: enable symlink creation on Windows 10
</p>

<p><!-- CL 100077 -->
TODO: <a href="https://golang.org/cl/100077">https://golang.org/cl/100077</a>: use poller when NewFile is called with a blocking descriptor.
</p>

</dl><!-- os -->

<dl id="os/signal"><dt><a href="/pkg/os/signal/">os/signal</a></dt>
<dd>
<p><!-- CL 108376 -->
TODO: <a href="https://golang.org/cl/108376">https://golang.org/cl/108376</a>: add func Ignored(sig Signal) bool
</p>

</dl><!-- os/signal -->

<dl id="os/user"><dt><a href="/pkg/os/user/">os/user</a></dt>
<dd>
<p><!-- CL 92456 -->
TODO: <a href="https://golang.org/cl/92456">https://golang.org/cl/92456</a>: add a way to enforce pure Go implementation
</p>

</dl><!-- os/user -->

<dl id="runtime"><dt><a href="/pkg/runtime/">runtime</a></dt>
<dd>
<p><!-- CL 85887 -->
TODO: <a href="https://golang.org/cl/85887">https://golang.org/cl/85887</a>: use sparse mappings for the heap
</p>

<p><!-- CL 94076 -->
TODO: <a href="https://golang.org/cl/94076">https://golang.org/cl/94076</a>: use native CAS and memory barrier on ARMv7
</p>

<p><!-- CL 106156 -->
TODO: <a href="https://golang.org/cl/106156">https://golang.org/cl/106156</a>: use fixed TLS offsets on darwin/amd64 and darwin/386
</p>

<p><!-- CL 109255 -->
TODO: <a href="https://golang.org/cl/109255">https://golang.org/cl/109255</a>: enable memory sanitizer on arm64
</p>

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

<dl id="runtime,cmd/ld"><dt><a href="/pkg/runtime,cmd/ld/">runtime,cmd/ld</a></dt>
<dd>
<p><!-- CL 108679 -->
TODO: <a href="https://golang.org/cl/108679">https://golang.org/cl/108679</a>: on darwin, create theads using libc
</p>

</dl><!-- runtime,cmd/ld -->

<dl id="runtime/pprof"><dt><a href="/pkg/runtime/pprof/">runtime/pprof</a></dt>
<dd>
<p><!-- CL 102696 -->
TODO: <a href="https://golang.org/cl/102696">https://golang.org/cl/102696</a>: introduce &#34;allocs&#34; profile
</p>

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

<dl id="runtime/traceback"><dt><a href="/pkg/runtime/traceback/">runtime/traceback</a></dt>
<dd>
<p><!-- CL 70993 -->
TODO: <a href="https://golang.org/cl/70993">https://golang.org/cl/70993</a>: support tracking goroutine ancestor tracebacks with GODEBUG=&#34;tracebackancestors=N&#34;
</p>

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

<dl id="sync"><dt><a href="/pkg/sync/">sync</a></dt>
<dd>
<p><!-- CL 87095 -->
TODO: <a href="https://golang.org/cl/87095">https://golang.org/cl/87095</a>: enable profiling of RWMutex
</p>

</dl><!-- sync -->

<dl id="syscall"><dt><a href="/pkg/syscall/">syscall</a></dt>
<dd>
<p><!-- CL 106275 -->
TODO: <a href="https://golang.org/cl/106275">https://golang.org/cl/106275</a>: introduce Pointer type and use it instead of uintptr
</p>

</dl><!-- syscall -->

<dl id="text/scanner"><dt><a href="/pkg/text/scanner/">text/scanner</a></dt>
<dd>
<p><!-- CL 112037 -->
TODO: <a href="https://golang.org/cl/112037">https://golang.org/cl/112037</a>: return RawString token rather than String for raw string literals
</p>

</dl><!-- text/scanner -->

<dl id="text/template"><dt><a href="/pkg/text/template/">text/template</a></dt>
<dd>
<p><!-- CL 84480 -->
TODO: <a href="https://golang.org/cl/84480">https://golang.org/cl/84480</a>: add variable assignments
</p>

</dl><!-- text/template -->

<dl id="time"><dt><a href="/pkg/time/">time</a></dt>
<dd>
<p><!-- CL 98157 -->
TODO: <a href="https://golang.org/cl/98157">https://golang.org/cl/98157</a>: add support for parsing timezones denoted by sign and offset
</p>

</dl><!-- time -->

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