diff --git a/aio/content/guide/ivy-compatibility.md b/aio/content/guide/ivy-compatibility.md
index e8776cc946..2a7bfaa343 100644
--- a/aio/content/guide/ivy-compatibility.md
+++ b/aio/content/guide/ivy-compatibility.md
@@ -75,6 +75,10 @@ Please note that these constants are not meant to be used by 3rd party library o
 
 * ICU parsing happens at runtime, so only text, HTML tags and text bindings are allowed inside ICU cases (previously, directives were also permitted inside ICUs).
 
+* Adding text bindings into i18n translations that are not present in the source template itself will throw a runtime error (previously, including extra bindings in translations was permitted).
+
+* Extra HTML tags in i18n translations that are not present in the source template itself will be rendered as plain text (previously, these tags would render as HTML).
+
 * Providers formatted as `{provide: X}` without a `useValue`, `useFactory`, `useExisting`, or `useClass` property are treated like `{provide: X, useClass: X}` (previously, it defaulted to `{provide: X, useValue: undefined}`).
 
 * `DebugElement.attributes` returns `undefined` for attributes that were added and then subsequently removed (previously, attributes added and later removed would have a value of `null`).