doc/go1.19: add a release note for module indexing

Change-Id: I264499d955049c5b7c4bdda7ce23cf7fe7031402
Reviewed-on: https://go-review.googlesource.com/c/go/+/411497
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>

diff --git a/doc/go1.19.html b/doc/go1.19.html
index 00fd38e2d66dcfc274b7d456d9f552f4b32ef33e..4d7552276f3227634ff04fe66d0b94b8c9edc9e2 100644 (file)
--- a/doc/go1.19.html
+++ b/doc/go1.19.html
@@ -109,6 +109,11 @@ as well as support for rendering them to HTML, Markdown, and text.
   and <code>GOGCCFLAGS</code> variables it reports.
 </p>
 
+<p><!-- CL 410821 -->
+  The <code>go</code> command now caches information necessary to load some modules,
+  which should result in a speed-up of some <code>go</code> <code>list</code> invocations.
+</p>
+
 <h3 id="vet">Vet</h3>
 
 <p><!-- https://go.dev/issue/47528 -->: