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Fixes #36134 Change-Id: Icc5e1269696db778ba5c1e6bebed9969b8841c81 Reviewed-on: https://go-review.googlesource.com/c/go/+/220365 Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Jay Conrod <jayconrod@google.com> Reviewed-by: Michael Matloob <matloob@golang.org>
138 lines
3.6 KiB
HTML
138 lines
3.6 KiB
HTML
<!--{
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"Title": "Go 1.15 Release Notes",
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"Path": "/doc/go1.15"
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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 1.15</h2>
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<p>
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<strong>
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Go 1.15 is not yet released. These are work-in-progress
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release notes. Go 1.15 is expected to be released in August 2020.
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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
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</p>
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<h2 id="ports">Ports</h2>
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<p>
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TODO
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</p>
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<h2 id="tools">Tools</h2>
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<p>
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TODO
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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
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</p>
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<h4 id="go-test"><code>go</code> <code>test</code></h4>
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<p><!-- https://golang.org/issue/36134 -->
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Changing the <code>-timeout</code> flag now invalidates cached test results. A
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cached result for a test run with a long timeout will no longer count as
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passing when <code>go</code> <code>test</code> is re-invoked with a short one.
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</p>
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<h4 id="go-flag-parsing">Flag parsing</h4>
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<p><!-- https://golang.org/cl/211358 -->
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Various flag parsing issues in <code>go</code> <code>test</code> and
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<code>go</code> <code>vet</code> have been fixed. Notably, flags specified
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in <code>GOFLAGS</code> are handled more consistently, and
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the <code>-outputdir</code> flag now interprets relative paths relative to the
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working directory of the <code>go</code> command (rather than the working
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directory of each individual test).
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</p>
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<h2 id="runtime">Runtime</h2>
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<p>
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TODO
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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
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</p>
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<dl id="testing"><dt><a href="/pkg/testing/">testing</a></dt>
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<dd>
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<p><!-- golang.org/issue/28135 -->
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The <code>testing.T</code> type now has a <code>Deadline</code> method
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that reports the time at which the test binary will have exceeded its
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timeout.
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</p>
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</dl><!-- testing -->
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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
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</p>
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<dl id="pkg-runtime"><dt><a href="/pkg/runtime/">runtime</a></dt>
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<dd>
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<p><!-- CL 221779 -->
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If <code>panic</code> is invoked with a value whose type is derived from any
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of: <code>bool</code>, <code>complex64</code>, <code>complex128</code>, <code>float32</code>, <code>float64</code>,
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<code>int</code>, <code>int8</code>, <code>int16</code>, <code>int32</code>, <code>int64</code>, <code>string</code>,
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<code>uint</code>, <code>uint8</code>, <code>uint16</code>, <code>uint32</code>, <code>uint64</code>, <code>uintptr</code>,
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then the value will be printed, instead of just its address.
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</p>
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</dd>
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</dl>
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<dl id="sync"><dt><a href="/pkg/sync/">sync</a></dt>
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<dd>
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<p><!-- golang.org/issue/33762 -->
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The new method
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<a href="/pkg/sync#Map.LoadAndDelete"><code>Map.LoadAndDelete</code></a>
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atomically deletes a key and returns the previous value if present.
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</p>
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<p><!-- CL 205899 -->
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The method
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<a href="/pkg/sync#Map.Delete"><code>Map.Delete</code></a>
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is more efficient.
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</p>
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</dl><!-- sync -->
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<dl id="time"><dt><a href="/pkg/time/">time</a></dt>
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<dd>
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<p><!-- golang.org/issue/33184 -->
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The new method
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<a href="/pkg/time#Ticker.Reset"><code>Ticker.Reset</code></a>
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supports changing the duration of a ticker.
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</p>
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</dd>
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</dl><!-- time -->
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