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doc: add release notes for new context functions 

For #40221
For #56661
For #57928

Change-Id: Iaf7425bb26eeb9c23235d13c786d5bb572159481
Reviewed-on: https://go-review.googlesource.com/c/go/+/486535
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Sameer Ajmani <sameer@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Damien Neil 2023-04-19 12:31:27 -07:00 committed by Sameer Ajmani
parent 547e8e22fe
commit b4b70a4617
1 changed files with 21 additions and 0 deletions
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doc/go1.21.html
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@ -84,6 +84,27 @@ Do not send CLs removing the interior tags from such phrases.
TODO: complete this section TODO: complete this section
</p> </p>
<dl id="context"><dt><a href="/pkg/context/">sync</a></dt>
<dd>
<p><!-- https://go.dev/issue/40221, CL 479918 -->
The new <a href="/pkg/context/#WithoutCancel"><code>WithoutCancel</code></a>
function returns a copy of a context that is not canceled when the original
context is canceled.
</p>
<p><!-- https://go.dev/issue/56661, CL 449318 -->
The new <a href="/pkg/context/#WithDeadlineCause"><code>WithDeadlineCause</code></a>
and <a href="/pkg/context/#WithTimeoutCause"><code>WithTimeoutCause</code></a>
functions provide a way to set a context cancellation cause when a deadline or
timer expires. The cause may be retrieved with the
<a href="/pkg/context/#Cause"><code>Cause</code></a> function.
</p>
<p><!-- https://go.dev/issue/57928, CL 482695 -->
The new <a href="/pkg/context/#AfterFunc"><code>AfterFunc</code></a>
function registers a function to run after a context has been cancelled.
</p>
</dd>
</dl>
<dl id="sync"><dt><a href="/pkg/sync/">sync</a></dt> <dl id="sync"><dt><a href="/pkg/sync/">sync</a></dt>
<dd> <dd>
<p><!-- https://go.dev/issue/56102, CL 451356 --> <p><!-- https://go.dev/issue/56102, CL 451356 -->