diff --git a/src/Data/Text/Encoding.hs b/src/Data/Text/Encoding.hs
index 16ec1986..39c154b5 100644
--- a/src/Data/Text/Encoding.hs
+++ b/src/Data/Text/Encoding.hs
@@ -393,6 +393,8 @@ decodeUtf8' = unsafeDupablePerformIO . try . evaluate . decodeUtf8With strictDec
 --
 -- Any invalid input bytes will be replaced with the Unicode replacement
 -- character U+FFFD.
+--
+-- @since 2.0
 decodeUtf8Lenient :: ByteString -> Text
 decodeUtf8Lenient = decodeUtf8With lenientDecode