Add changelog and since annotations for KeyMap.insertWith

Author: phadej

changelog.md

@@ -3,6 +3,7 @@ For the latest version of this document, please see [https://github.com/haskell/
 ### 2.1.1.0
 
 - Add `Data.Aeson.KeyMap.!?` (flipped) alias to `Data.Aeson.KeyMap.lookup`.
+- Add `Data.Aeson.KeyMap.insertWith` function.
 - Use `unsafeDupablePerformIO` instead of incorrect `accursedUnutterablePerformIO` in creation of keys in TH serialisation.
   This fixes a bug in TH deriving, e.g. when `Strict` pragma was enabled.
 

src/Data/Aeson/KeyMap.hs

@@ -194,6 +194,7 @@ insert k v tm = KeyMap (M.insert k v (unKeyMap tm))
 
 -- | Insert with a function combining new and old values, taken in that order.
 --
+-- @since 2.1.1.0
 insertWith :: (a -> a -> a) -> Key -> a -> KeyMap a -> KeyMap a
 insertWith f k v m = KeyMap (M.insertWith f k v (unKeyMap m))
 
@@ -402,6 +403,7 @@ insert k v tm = KeyMap (H.insert k v (unKeyMap tm))
 
 -- | Insert with a function combining new and old values, taken in that order.
 --
+-- @since 2.1.1.0
 insertWith :: (a -> a -> a) -> Key -> a -> KeyMap a -> KeyMap a
 insertWith f k v m = KeyMap (H.insertWith f k v (unKeyMap m))