mirror of
https://github.com/golang/go
synced 2024-11-17 12:34:46 -07:00
85b5f86584
Change timeouts to be Is(context.DeadlineExceeded) and cancelation to be Is(context.Canceled). Fixes #51428 Change-Id: Ic580bd9da0f338e993fb79138875a78d99cc1a1d Reviewed-on: https://go-review.googlesource.com/c/go/+/396877 Trust: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
116 lines
3.8 KiB
HTML
116 lines
3.8 KiB
HTML
<!--{
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"Title": "Go 1.19 Release Notes",
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"Path": "/doc/go1.19"
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}-->
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<!--
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NOTE: In this document and others in this directory, the convention is to
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set fixed-width phrases with non-fixed-width spaces, as in
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<code>hello</code> <code>world</code>.
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Do not send CLs removing the interior tags from such phrases.
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-->
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<style>
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main ul li { margin: 0.5em 0; }
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</style>
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<h2 id="introduction">DRAFT RELEASE NOTES — Introduction to Go 1.19</h2>
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<p>
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<strong>
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Go 1.19 is not yet released. These are work-in-progress
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release notes. Go 1.19 is expected to be released in August 2022.
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</strong>
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</p>
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<h2 id="language">Changes to the language</h2>
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<p>
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TODO: complete this section
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</p>
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<h2 id="ports">Ports</h2>
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<p>
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TODO: complete this section, or delete if not needed
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</p>
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<h2 id="tools">Tools</h2>
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<p>
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TODO: complete this section, or delete if not needed
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</p>
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<h3 id="go-command">Go command</h3>
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<p>
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TODO: complete this section, or delete if not needed
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</p>
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<h4 id="go-unix">New <code>unix</code> build constraint</h4>
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<p><!-- CL 389934 -->
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The build constraint <code>unix</code> is now recognized
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in <code>//go:build</code> lines. The constraint is satisfied
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if the target operating system, also known as <code>GOOS</code>, is
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a Unix or Unix-like system. For the 1.19 release it is satisfied
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if <code>GOOS</code> is one of
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<code>aix</code>, <code>android</code>, <code>darwin</code>,
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<code>dragonfly</code>, <code>freebsd</code>, <code>hurd</code>,
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<code>illumos</code>, <code>ios</code>, <code>linux</code>,
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<code>netbsd</code>, <code>openbsd</code>, or <code>solaris</code>.
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In future releases the <code>unix</code> constraint may match
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additional newly supported operating systems.
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</p>
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<h2 id="runtime">Runtime</h2>
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<p>
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TODO: complete this section, or delete if not needed
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</p>
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<h2 id="compiler">Compiler</h2>
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<p>
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TODO: complete this section, or delete if not needed
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</p>
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<h2 id="linker">Linker</h2>
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<p>
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TODO: complete this section, or delete if not needed
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</p>
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<h2 id="library">Core library</h2>
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<p>
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TODO: complete this section
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</p>
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<h3 id="minor_library_changes">Minor changes to the library</h3>
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<p>
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As always, there are various minor changes and updates to the library,
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made with the Go 1 <a href="/doc/go1compat">promise of compatibility</a>
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in mind.
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</p>
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<p>
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TODO: complete this section
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</p>
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<dl id="net"><dt><a href="/pkg/net/">net</a></dt>
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<dd>
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<p><!-- CL 386016 -->
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The pure Go resolver will now use EDNS(0) to include a suggested
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maximum reply packet length, permitting reply packets to contain
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up to 1232 bytes (the previous maximum was 512).
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In the unlikely event that this causes problems with a local DNS
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resolver, setting the environment variable
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<code>GODEBUG=netdns=cgo</code> to use the cgo-based resolver
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should work.
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Please report any such problems on <a href="/issue/new">the
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issue tracker</a>.
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</p>
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<p><!-- CL 396877 -->
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When a net package function or method returns an "I/O timeout"
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error, the error will now satisfy <code>errors.Is(err,
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context.Canceled)</code>. When a net package function returns
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an "operation was canceled" error, the error will now satisfy
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<code>errors.Is(err, context.DeadlineExceeded)</code>.
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These changes are intended to make it easier for code to test
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for cases in which a context cancelation or timeout causes a net
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package function or method to return an error, while preserving
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backward compatibility for error messages.
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</p>
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</dd>
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</dl><!-- net -->
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<dl id="strconv"><dt><a href="/pkg/strconv/">strconv</a></dt>
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<dd>
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<p><!-- CL 397255 -->
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<a href="/pkg/strconv/#strconv.Quote"><code>strconv.Quote</code></a>
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and related functions now quote the rune 007F as <code>\x7f</code>,
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not <code>\u007f</code>.
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</p>
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</dd>
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</dl><!-- strconv -->
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