diff --git a/core/src/Streamly/Internal/Data/MutArray/Type.hs b/core/src/Streamly/Internal/Data/MutArray/Type.hs
index 70bb68823e..e5daf17bcc 100644
--- a/core/src/Streamly/Internal/Data/MutArray/Type.hs
+++ b/core/src/Streamly/Internal/Data/MutArray/Type.hs
@@ -496,12 +496,12 @@ module Streamly.Internal.Data.MutArray.Type
     , splitOn
     , pinnedNewAligned
     , unsafePinnedAsPtr
-    , grow -- XXX to be deprecated
-    , createWith -- XXX to be deprecated
-    , snocLinear -- XXX deprecate, replace by snocGrowBy or rename snoc1KB
-    , unsafeAppendN -- XXX deprecate, replaced by unsafeAppendMax
-    , appendN -- XXX deprecate, replaced by appendMax
-    , append -- XXX deprecate, replaced by append2
+    , grow
+    , createWith
+    , snocLinear
+    , unsafeAppendN
+    , appendN
+    , append
     )
 where
 
@@ -1151,8 +1151,7 @@ growTo nElems arr@MutArray{..} = do
     then return arr
     else realloc req arr
 
-{-# INLINE grow #-}
-grow = growTo
+RENAME(grow,growTo)
 
 -- | Like 'growTo' but specifies the required reserve (unused) capacity rather
 -- than the total capacity. Increases the reserve capacity, if required, to at
@@ -1334,6 +1333,7 @@ snocWith sizer arr x = do
 -- Performs O(n^2) copies to grow but is thrifty on memory.
 --
 -- /Pre-release/
+{-# DEPRECATED snocLinear "Please use snocGrowBy instead. snocLinear ~ snocGrowBy (1024 / sizeOf (Proxy :: Proxy a) + 1)" #-}
 {-# INLINE snocLinear #-}
 snocLinear :: forall m a. (MonadIO m, Unbox a) => MutArray a -> a -> m (MutArray a)
 snocLinear = snocWith (+ allocBytesToBytes (undefined :: a) arrayChunkBytes)
@@ -2351,6 +2351,7 @@ foldRev f arr = D.fold f (readRev arr)
 -- Any free space left in the array after appending @n@ elements is lost.
 --
 -- /Internal/
+{-# DEPRECATED unsafeAppendN "Please use unsafeAppendMax instead." #-}
 {-# INLINE_NORMAL unsafeAppendN #-}
 unsafeAppendN :: forall m a. (MonadIO m, Unbox a) =>
        Int
@@ -2428,6 +2429,7 @@ writeAppendNUnsafe = unsafeAppendN
 --
 -- >>> appendN n initial = Fold.take n (MutArray.unsafeAppendN n initial)
 --
+{-# DEPRECATED appendN "Please use appendMax instead." #-}
 {-# INLINE_NORMAL appendN #-}
 appendN :: forall m a. (MonadIO m, Unbox a) =>
     Int -> m (MutArray a) -> Fold m a (MutArray a)
@@ -2481,6 +2483,7 @@ writeAppendWith = appendWith
 --
 -- >>> append = Fold.foldlM' MutArray.snoc
 --
+{-# DEPRECATED append "Please use append2 instead." #-}
 {-# INLINE append #-}
 append :: forall m a. (MonadIO m, Unbox a) =>
     m (MutArray a) -> Fold m a (MutArray a)
@@ -2824,7 +2827,7 @@ createMinOf, createWith :: forall m a. (MonadIO m, Unbox a)
 -- createWith n = FL.rmapM rightSize $ appendWith (* 2) (emptyOf n)
 createMinOf = writeWithAs Unpinned
 
-createWith = createMinOf
+RENAME(createWith,createMinOf)
 
 {-# DEPRECATED writeWith "Please use createMinOf instead." #-}
 {-# INLINE writeWith #-}
diff --git a/test/Streamly/Test/Data/MutArray.hs b/test/Streamly/Test/Data/MutArray.hs
index b52bbb7375..6c23b60e4e 100644
--- a/test/Streamly/Test/Data/MutArray.hs
+++ b/test/Streamly/Test/Data/MutArray.hs
@@ -41,8 +41,9 @@ testAppend =
         where
 
         action ls = do
+            arr0 <- MArray.emptyOf' 0
             x <- Stream.fold
-                    (MArray.append (MArray.emptyOf' 0))
+                    (MArray.append2 arr0)
                     (Stream.fromList (ls::[Int]))
             lst <- MArray.toList x
             assert (ls == lst)