diff --git a/src/Network/Wai/SAML2/Request.hs b/src/Network/Wai/SAML2/Request.hs
index 3a3d75a..e527ef1 100644
--- a/src/Network/Wai/SAML2/Request.hs
+++ b/src/Network/Wai/SAML2/Request.hs
@@ -66,7 +66,7 @@ data AuthnRequest
         -- | The URI reference to which this request is to be sent. Required
         -- for signed requests
         --
-        -- @since 0.4.1
+        -- @since 0.5
     ,   authnRequestDestination :: !(Maybe T.Text)
         -- | Allow IdP to generate a new identifier
     ,   authnRequestAllowCreate :: !Bool
diff --git a/src/Network/Wai/SAML2/Response.hs b/src/Network/Wai/SAML2/Response.hs
index 6211f98..68acca2 100644
--- a/src/Network/Wai/SAML2/Response.hs
+++ b/src/Network/Wai/SAML2/Response.hs
@@ -135,6 +135,8 @@ extractSignedInfo cursor = do
     pure signedInfo
 
 -- | Obtain a list of InclusiveNamespaces entries used for exclusive XML canonicalisation.
+--
+-- @since 0.5
 extractPrefixList :: Cursor -> [T.Text]
 extractPrefixList cursor = concatMap T.words
     $ concatMap (attribute "PrefixList")
diff --git a/src/Network/Wai/SAML2/XML.hs b/src/Network/Wai/SAML2/XML.hs
index a45510b..be1b51f 100644
--- a/src/Network/Wai/SAML2/XML.hs
+++ b/src/Network/Wai/SAML2/XML.hs
@@ -70,6 +70,8 @@ mdName name =
 
 -- | 'ecName' @name@ constructs a 'Name' for @name@ in the
 -- http://www.w3.org/2001/10/xml-exc-c14n# namespace.
+--
+-- @since 0.5
 ecName :: T.Text -> Name
 ecName name =
     Name name (Just "http://www.w3.org/2001/10/xml-exc-c14n#") (Just "ec")
@@ -111,5 +113,7 @@ oneOrFail _ (x:_) = pure x
 
 -- | It is important to retain namespaces in order to calculate the hash of the canonicalised XML correctly.
 -- see: https://stackoverflow.com/questions/69252831/saml-2-0-digest-value-calculation-in-saml-assertion
+--
+-- @since 0.5
 parseSettings :: ParseSettings
 parseSettings = def { psRetainNamespaces = True }