doc/go1.18: add release notes for build and VCS info
Fixes #37475
For #39301
Change-Id: I765bc667004931ff8973b947f2e95624a4a0375d
Reviewed-on: https://go-review.googlesource.com/c/go/+/356013
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Trust: Jay Conrod <jayconrod@google.com>
diff --git a/doc/go1.18.html b/doc/go1.18.html
index f4d097d..d95e55e 100644
--- a/doc/go1.18.html
+++ b/doc/go1.18.html
@@ -65,6 +65,30 @@
and installs packages, as before.
</p>
+<p><!-- golang.org/issue/37475 -->
+ The <code>go</code> command now embeds version control information in
+ binaries including the currently checked-out revision and a flag indicating
+ whether edited or untracked files are present. Version control information
+ is embedded if the <code>go</code> command is invoked in a directory within a
+ Git or Mercurial repository, and the <code>main</code> package and its
+ containing main module are in the same repository. This information may be
+ omitted using the flag <code>-buildvcs=false</code>.
+</p>
+
+<p><!-- golang.org/issue/37475 -->
+ Additionally, the <code>go</code> command embeds information about the build
+ including build and tool tags (set with <code>-tags</code>), compiler,
+ assembler, and linker flags (like <code>-gcflags</code>), whether cgo was
+ enabled, and if it was, the values of the cgo environment variables
+ (like <code>CGO_CFLAGS</code>). This information may be omitted using the
+ flag <code>-buildinfo=false</code>. Both VCS and build information may be
+ read together with module information using <code>go</code>
+ <code>version</code> <code>-m</code> <code>file</code> or
+ <code>runtime/debug.ReadBuildInfo</code> (for the currently running binary)
+ or the new <a href="#debug/buildinfo"><code>debug/buildinfo</code></a>
+ package.
+</p>
+
<p>
TODO: complete this section, or delete if not needed
</p>
@@ -114,6 +138,19 @@
TODO: complete this section
</p>
+<dl id="debug/buildinfo"><dt><a href="/pkg/debug/buildinfo">debug/buildinfo</a></dt>
+ <dd>
+ <p><!-- golang.org/issue/39301 -->
+ This new package provides access to module versions, version control
+ information, and build flags embedded in executable files built by
+ the <code>go</code> command. The same information is also available via
+ <a href="/pkg/runtime/debug#ReadBuildInfo"><code>runtime/debug.ReadBuildInfo</code></a>
+ for the currently running binary and via <code>go</code>
+ <code>version</code> <code>-m</code> on the command line.
+ </p>
+ </dd>
+</dl>
+
<dl id="image/draw"><dt><a href="/pkg/image/draw/">image/draw</a></dt>
<dd>
<p><!-- CL 340049 -->
