diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index b800d1bb69d6ed..72cc8f14f04452 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -4,6 +4,10 @@
 
 March 11, 2021
 
+### Notable changes
+
+- [Support statement objects](https://github.com/mdn/browser-compat-data/blob/v3.2.0/schemas/compat-data-schema.md#the-support_statement-object) may no longer use `false` or `null` values for `version_removed`. Values for `version_removed` are now required to be real version numbers or `true` (removed in some unknown version). This change to the schema codifies a widely-followed practice within existing compatability data. ([#9015](https://github.com/mdn/browser-compat-data/pull/9015))
+
 ## [v3.1.3](https://github.com/mdn/browser-compat-data/releases/tag/v3.1.3)
 
 March 4, 2021