diff --git a/doc/go1.5.txt b/doc/go1.5.txt
index fff33ddfa7..b2dce7f06a 100644
--- a/doc/go1.5.txt
+++ b/doc/go1.5.txt
@@ -1,5 +1,12 @@
+API additions and behavior changes:
+
 crypto/cipher: clarify what will happen if len(src) != len(dst) for the Stream interface. (https://golang.org/cl/1754)
 crypto/tls: change default minimum version to TLS 1.0. (https://golang.org/cl/1791)
 encoding/base64: add unpadded encodings (https://golang.org/cl/1511)
 net/http: support for setting trailers from a server Handler (https://golang.org/cl/2157)
 net/smtp: add TLSConnectionState accessor (https://golang.org/cl/2151)
+
+
+Performance:
+
+strconv: optimize decimal to string conversion (https://golang.org/cl/2105)