doc/go1.15: add more release notes for crypto/tls
Updates #37419
Change-Id: I5e03adbf6d215d65aedbdeb7bdfe1ead8a838877
Reviewed-on: https://go-review.googlesource.com/c/go/+/236921
Reviewed-by: Katie Hockman <katie@golang.org>
diff --git a/doc/go1.15.html b/doc/go1.15.html
index 1e39493..7a49e1f 100644
--- a/doc/go1.15.html
+++ b/doc/go1.15.html
@@ -463,8 +463,27 @@
Auto-generated session ticket keys are now automatically rotated every 24 hours,
with a lifetime of 7 days, to limit their impact on forward secrecy.
</p>
+
+ <p><!-- CL 231317 -->
+ Session ticket lifetimes in TLS 1.2 and earlier, where the session keys
+ are reused for resumed connections, are now limited to 7 days, also to
+ limit their impact on forward secrecy.
+ </p>
+
+ <p><!-- CL 231038 -->
+ The client-side downgrade protection checks specified in RFC 8446 are now
+ enforced. This has the potential to cause connection errors for clients
+ encountering middleboxes that behave like unauthorized downgrade attacks.
+ </p>
+
+ <p><!-- CL 208226 -->
+ <a href="/pkg/crypto/tls/#SignatureScheme"><code>SignatureScheme</code></a>,
+ <a href="/pkg/crypto/tls/#CurveID"><code>CurveID</code></a>, and
+ <a href="/pkg/crypto/tls/#ClientAuthType"><code>ClientAuthType</code></a>
+ now implement <a href="/pkg/fmt/#Stringer"><code>fmt.Stringer</code></a>.
+ </p>
</dd>
-</dl>
+</dl><!-- crypto/tls -->
<dl id="crypto/x509"><dt><a href="/pkg/crypto/x509/">crypto/x509</a></dt>
<dd>
