diff --git a/doc/go1.5.txt b/doc/go1.5.txt
index 238e2b56b9fa07a7476aed0df633efd1099910e4..c6e0938a54f13e795a24538ab7709a9f7d5db346 100644
--- a/doc/go1.5.txt
+++ b/doc/go1.5.txt
@@ -13,6 +13,9 @@ darwin/arm, a.k.a iOS. (https://golang.org/cl/2118, 2119, 3273, 2121, 2122, ...,
 darwin/arm64
 linux/arm64 (cgo is supported, but only with external linking)
 
+Runtime:
+goroutine scheduling order changed; never guaranteed by language, but can break tests that implicitly assume a specific execution order
+
 Removed Ports:
 dragonfly/386 (https://golang.org/cl/7543)