Import Cobalt 21.master.0.267865
diff --git a/src/starboard/CHANGELOG.md b/src/starboard/CHANGELOG.md
index c535b8b..5575e52 100644
--- a/src/starboard/CHANGELOG.md
+++ b/src/starboard/CHANGELOG.md
@@ -242,6 +242,13 @@
The Platform Services API should be used
instead. See cobalt/doc/platform_services.md.
+### Add event for text-to-speech settings changes.
+
+If the platform supports text-to-speech settings, it must use the new
+kSbEventTypeAccessiblityTextToSpeechSettingsChanged event to inform the app
+when those settings change. For older starboard versions, use
+kSbEventTypeAccessiblitySettingsChanged instead.
+
## Version 11
### Add arguments to `SbMediaIsVideoSupported`.
