diff --git a/changelog.md b/changelog.md
index a0fa673..7d4de32 100644
--- a/changelog.md
+++ b/changelog.md
@@ -2,9 +2,12 @@
 
 ## WIP
 
+## [1.6.0] - 2022-01-22
+
+- Add instances of `FunctorWithIndex`, `FoldableWithIndex` and
+  `TraversableWithIndex` for `Vector n a`.
 - Drop support for GHC older than 8.10
-- Safe construction of vectors from linked lists
-  - https://github.com/expipiplus1/vector-sized/pull/88
+- Safe construction of vectors from linked lists (https://github.com/expipiplus1/vector-sized/pull/88)
 
 Thanks to @sheaf and @kozross
 
diff --git a/src/Data/Vector/Generic/Sized.hs b/src/Data/Vector/Generic/Sized.hs
index 7be71d1..4035139 100755
--- a/src/Data/Vector/Generic/Sized.hs
+++ b/src/Data/Vector/Generic/Sized.hs
@@ -13,6 +13,7 @@
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE UndecidableInstances #-}
 {-# LANGUAGE AllowAmbiguousTypes #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE NoStarIsType #-}
 
 {-# OPTIONS_GHC -Wno-orphans #-}
@@ -285,12 +286,13 @@ import Prelude
                zip3, unzip, unzip3, elem, notElem, foldl, foldl1, foldr, foldr1,
                all, any, and, or, sum, product, maximum, minimum, scanl, scanl1,
                scanr, scanr1, mapM, mapM_, sequence, sequence_)
-
-
 import Data.IndexedListLiterals hiding (toList, fromList)
 import Data.Hashable (Hashable(..))
 import qualified Data.IndexedListLiterals as ILL
 import Data.Vector.Unboxed (Unbox)
+import qualified Data.Traversable.WithIndex as ITraversable
+import qualified Data.Foldable.WithIndex as IFoldable
+import qualified Data.Functor.WithIndex as IFunctor
 
 instance (KnownNat n, VG.Vector v a, Read (v a)) => Read (Vector v n a) where
   readPrec = parens $ prec 10 $ do
@@ -651,15 +653,23 @@ singleton a = Vector (VG.singleton a)
 --   fromTuple (1,2) :: Vector v 2 Int
 --   fromTuple ("hey", "what's", "going", "on") :: Vector v 4 String
 -- @
+--
+-- @since 1.6.0
 fromTuple :: forall v a input length.
              (VG.Vector v a, IndexedListLiterals input length a, KnownNat length)
           => input -> Vector v length a
 fromTuple = Vector . VG.fromListN (fromIntegral $ natVal $ Proxy @length) . ILL.toList
 
 infixr 5 :<
+
+-- | @since 1.6.0
 data BuildVector (n :: Nat) a where
+  -- | @since 1.6.0
   Nil :: BuildVector 0 a
+  -- | @since 1.6.0
   (:<) :: a -> BuildVector n a -> BuildVector (1 + n) a
+
+-- | @since 1.6.0
 deriving instance Show a => Show (BuildVector n a)
 
 -- | /O(n)/ Construct a vector in a type-safe manner using a sized linked list.
@@ -668,6 +678,8 @@ deriving instance Show a => Show (BuildVector n a)
 --   Build ("not" :< "much" :< Nil) :: Vector v 2 String
 -- @
 -- Can also be used as a pattern.
+--
+-- @since 1.6.0
 pattern Build :: VG.Vector v a => BuildVector n a -> Vector v n a
 pattern Build build <- ( ( \ ( Vector v ) -> unsafeCoerce $ VG.toList v ) -> build )
   where
@@ -2027,3 +2039,27 @@ instance (VG.Vector v a, Bits (v a), Bits a, KnownNat n) => Bits (Vector v n a)
 instance (VG.Vector v a, Bits (v a), FiniteBits a, KnownNat n) => FiniteBits (Vector v n a) where
     finiteBitSize _ = finiteBitSize @a undefined * fromIntegral (natVal (Proxy @n))
 
+-- | @since 1.6.0
+instance IFunctor.FunctorWithIndex (Finite n) (Vector Boxed.Vector n) where
+  {-# INLINEABLE imap #-}
+  imap = imap
+
+-- | @since 1.6.0
+instance IFoldable.FoldableWithIndex (Finite n) (Vector Boxed.Vector n) where
+  {-# INLINEABLE ifoldMap #-}
+  ifoldMap f = ifoldl (\acc ix x -> acc `mappend` f ix x) mempty
+  {-# INLINEABLE ifoldMap' #-}
+  ifoldMap' f = ifoldl' (\acc ix x -> acc `mappend` f ix x) mempty
+  {-# INLINEABLE ifoldr #-}
+  ifoldr = ifoldr
+  {-# INLINEABLE ifoldl #-}
+  ifoldl f x = ifoldl (\acc ix -> f ix acc) x
+  {-# INLINEABLE ifoldr' #-}
+  ifoldr' = ifoldr'
+  {-# INLINEABLE ifoldl' #-}
+  ifoldl' f x = ifoldl' (\acc ix -> f ix acc) x
+
+-- | @since 1.6.0
+instance ITraversable.TraversableWithIndex (Finite n) (Vector Boxed.Vector n) where
+  {-# INLINEABLE itraverse #-}
+  itraverse f = traverse (uncurry f) . indexed
diff --git a/src/Data/Vector/Sized.hs b/src/Data/Vector/Sized.hs
index 54d9b67..cbacf4f 100644
--- a/src/Data/Vector/Sized.hs
+++ b/src/Data/Vector/Sized.hs
@@ -490,6 +490,8 @@ singleton = V.singleton
 --   fromTuple (1,2) :: Vector 2 Int
 --   fromTuple ("hey", "what's", "going", "on") :: Vector 4 String
 -- @
+--
+-- @since 1.6.0
 fromTuple :: forall input length ty.
              (IndexedListLiterals input length ty, KnownNat length)
           => input -> Vector length ty
@@ -501,6 +503,8 @@ fromTuple = V.fromTuple
 --   Build ("not" :< "much" :< Nil) :: Vector 2 String
 -- @
 -- Can also be used as a pattern.
+--
+-- @since 1.6.0
 pattern Build :: V.BuildVector n a -> Vector n a
 pattern Build build = V.Build build
 
diff --git a/src/Data/Vector/Storable/Sized.hs b/src/Data/Vector/Storable/Sized.hs
index 848b1a2..01898a6 100644
--- a/src/Data/Vector/Storable/Sized.hs
+++ b/src/Data/Vector/Storable/Sized.hs
@@ -497,6 +497,8 @@ singleton = V.singleton
 --   fromTuple (1,2) :: Vector 2 Int
 --   fromTuple ("hey", "what's", "going", "on") :: Vector 4 String
 -- @
+--
+-- @since 1.6.0
 fromTuple :: forall a input length.
              (Storable a, IndexedListLiterals input length a, KnownNat length)
           => input -> Vector length a
@@ -509,6 +511,8 @@ fromTuple = V.fromTuple
 --   Build ("not" :< "much" :< Nil) :: Vector 2 String
 -- @
 -- Can also be used as a pattern.
+--
+-- @since 1.6.0
 pattern Build :: Storable a => V.BuildVector n a -> Vector n a
 pattern Build vec = V.Build vec
 
diff --git a/src/Data/Vector/Unboxed/Sized.hs b/src/Data/Vector/Unboxed/Sized.hs
index 8bf4f3f..218e620 100644
--- a/src/Data/Vector/Unboxed/Sized.hs
+++ b/src/Data/Vector/Unboxed/Sized.hs
@@ -498,6 +498,8 @@ singleton = V.singleton
 --   fromTuple (1,2) :: Vector 2 Int
 --   fromTuple ("hey", "what's", "going", "on") :: Vector 4 String
 -- @
+--
+-- @since 1.6.0
 fromTuple :: forall a input length.
              (Unbox a, IndexedListLiterals input length a, KnownNat length)
           => input -> Vector length a
@@ -510,6 +512,8 @@ fromTuple = V.fromTuple
 --   Build ("not" :< "much" :< Nil) :: Vector 2 String
 -- @
 -- Can also be used as a pattern.
+--
+-- @since 1.6.0
 pattern Build :: Unbox a => V.BuildVector n a -> Vector n a
 pattern Build vec = V.Build vec
 
diff --git a/stack.yaml b/stack.yaml
index 8e32cdf..3b7d6db 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,3 +1,6 @@
 resolver: lts-18.22
 packages:
 - '.'
+
+extra-deps:
+  - indexed-traversable-0.1.2@sha256:d66228887242f93ccb4fc7101a1e25a6560c8e4708f6e9ee1d3dd21901756c65,2519
diff --git a/vector-sized.cabal b/vector-sized.cabal
index 12e3444..62b29c8 100644
--- a/vector-sized.cabal
+++ b/vector-sized.cabal
@@ -1,13 +1,6 @@
-cabal-version: 1.12
-
--- This file has been generated from package.yaml by hpack version 0.34.4.
---
--- see: https://github.com/sol/hpack
---
--- hash: 8cc33c7ff1b35236dcaed143ba951337eb4f12e3c53c616fa15ec2a073c0942b
-
+cabal-version: 3.0
 name:           vector-sized
-version:        1.5.0
+version:        1.6.0
 synopsis:       Size tagged vectors
 description:    Please see README.md
 category:       Data
@@ -16,7 +9,7 @@ bug-reports:    https://github.com/expipiplus1/vector-sized/issues
 author:         Ellie Hermaszewska
 maintainer:     whats.our.vector.victor@monoid.al
 copyright:      2016 Ellie Hermaszewska
-license:        BSD3
+license:        BSD-3-Clause
 license-file:   LICENSE
 build-type:     Simple
 tested-with:    GHC ==8.10.7 || ==9.0.1 || ==9.2.1
@@ -43,8 +36,6 @@ library
       Data.Vector.Storable.Sized
       Data.Vector.Unboxed.Mutable.Sized
       Data.Vector.Unboxed.Sized
-  other-modules:
-      Paths_vector_sized
   hs-source-dirs:
       src
   build-depends:
@@ -58,5 +49,6 @@ library
     , hashable >=1.2.4.0
     , indexed-list-literals >=0.2.0.0
     , primitive >=0.5 && <0.8
+    , indexed-traversable >=0.1.2 && <0.2
     , vector >=0.12 && <0.13
   default-language: Haskell2010