doc/go1.13: describe the change in behavior of GO111MODULE=auto
Updates #31857
Change-Id: Id0dc66246f768a2c730c67cd7a4a7830547f22a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/183922
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Katie Hockman <katie@golang.org>
diff --git a/doc/go1.13.html b/doc/go1.13.html
index f9a6c5b..180fcc94 100644
--- a/doc/go1.13.html
+++ b/doc/go1.13.html
@@ -169,6 +169,17 @@
<h4 id="proxy-vars">Environment variables</h4>
+<p><!-- CL 176580 -->
+ The <a href="/cmd/go/#hdr-Module_support"><code>GO111MODULE</code></a>
+ environment variable continues to default to <code>auto</code>, but
+ the <code>auto</code> setting now activates the module-aware mode of
+ the <code>go</code> command whenever the current working directory contains,
+ or is below a directory containing, a <code>go.mod</code> file — even if the
+ current directory is within <code>GOPATH/src</code>. This change simplifies
+ the migration of existing code within <code>GOPATH/src</code> and the ongoing
+ maintenance of module-aware packages alongside non-module-aware importers.
+</p>
+
<p><!-- CL 181719 -->
The new
<a href="/cmd/go/#hdr-Module_configuration_for_non_public_modules"><code>GOPRIVATE</code></a>
