internal/goversion: update Version to 1.21

This is the start of the Go 1.21 development cycle, so update the
Version value accordingly. It represents the Go 1.x version that
will soon open up for development (and eventually become released).

For #40705.
For #57736.

Change-Id: I31b739f632bdc8d14f46560e0e5bf333fb8e7740
Reviewed-on: https://go-review.googlesource.com/c/go/+/462456
Reviewed-by: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>

diff --git a/src/internal/goversion/goversion.go b/src/internal/goversion/goversion.go
index e9ecf8e64319f3faff1cb030106651c097e2a80f..5a52f9eac809c5a44b923d2be4fcfcc8a370406e 100644 (file)
--- a/src/internal/goversion/goversion.go
+++ b/src/internal/goversion/goversion.go
@@ -9,4 +9,4 @@ package goversion
 //
 // It should be updated at the start of each development cycle to be
 // the version of the next Go 1.x release. See golang.org/issue/40705.
-const Version = 20
+const Version = 21