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Change-Id: I11d0947d6d2ffa91745c8e36a3984ffee85abbd0 Reviewed-on: https://go-review.googlesource.com/c/go/+/528896 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Auto-Submit: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@golang.org>
123 lines
3.1 KiB
HTML
123 lines
3.1 KiB
HTML
<!--{
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"Title": "Go 1.22 Release Notes",
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"Path": "/doc/go1.22"
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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 1.22</h2>
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<p>
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<strong>
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Go 1.22 is not yet released. These are work-in-progress
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release notes. Go 1.22 is expected to be released in February 2024.
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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="tools">Tools</h2>
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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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<h3 id="cgo">Cgo</h3>
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<p><!-- CL 497837 --> The special comment that precedes
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<code>import</code> <code>"C"</code> may now include two
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new <code>#cgo</code> directives.
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<ul>
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<li>
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<code>#cgo</code> <code>noescape</code> <code>cFunctionName</code>
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tells cgo that Go pointers passed to the C function
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<code>cFunctionName</code> do not escape.
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</li>
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<li>
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<code>#cgo</code> <code>nocallback</code> <code>cFunctionName</code>
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tells cgo that the C function <code>cFunctionName</code> does
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not call any Go functions.
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</li>
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</ul>
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See <a href="/cmd/cgo#hdr-Optimizing_calls_of_C_code">the <code>cgo</code>
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documentation</a> for more details.
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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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<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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There are also various performance improvements, not enumerated here.
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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="database/sql"><dt><a href="/pkg/database/sql/">database/sql</a></dt>
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<dd>
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<p><!-- https://go.dev/issue/60370, CL 501700 -->
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The new <a href="/pkg/database/sql/#Null"><code>Null[T]</code></a> type
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provide a way to scan nullable columns for any column types.
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</p>
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</dd>
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</dl>
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<dl id="reflect"><dt><a href="/pkg/reflect/">reflect</a></dt>
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<dd>
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<p><!-- https://go.dev/issue/61827, CL 517777 -->
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The <a href="/pkg/reflect/#Value.IsZero"><code>Value.IsZero</code></a>
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method will now return true for a floating-point or complex
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negative zero, and will return true for a struct value if a
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blank field (a field named <code>_</code>) somehow has a
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non-zero value.
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These changes make <code>IsZero</code> consistent with comparing
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a value to zero using the language <code>==</code> operator.
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</p>
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</dd>
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</dl>
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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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