diff --git a/CHANGES.md b/CHANGES.md
index d9ddab548ec04e5e79fae0241bbb866af0339f6c..ee19ae3d30fe9c679f4576d1341ffb14d5703f65 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,13 +1,17 @@
-## TBD / GHC-8.5+
+## Changes in version 2.21.0
 
  * Overhaul handling of data declarations in XHTML and LaTeX. Adds support for
    documenting individual arguments of constructors/patterns (#709)
 
-## Changes in version 2.20.0
+ * Actually list all fixities for `--hoogle` (#871)
+
+ * Fix broken instance source links (#869)
 
-TODO
+ * Avoiding line breaks due to ling line in the output of `--hoogle` (#868)
 
-## Changes in version 2.19.1
+ * Capture docs on type family instances (#867)
+
+## Changes in version 2.20.0
 
  * Show where instances are defined (#748)
 
diff --git a/README.md b/README.md
index 51642aabce388f4c789afc0d29fa7dd48a8b4c57..38354996cf2f325a5bb6afdedbadc88ed5316c12 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Haddock, a Haskell Documentation Tool [![Build Status](https://travis-ci.org/haskell/haddock.svg?branch=master)](https://travis-ci.org/haskell/haddock)
+# Haddock, a Haskell Documentation Tool [![Build Status](https://travis-ci.org/haskell/haddock.svg?branch=ghc-8.6)](https://travis-ci.org/haskell/haddock)
 
 
 ## About haddock
@@ -57,9 +57,9 @@ and then proceed using your favourite build tool.
 #### Using [`cabal new-build`](http://cabal.readthedocs.io/en/latest/nix-local-build-overview.html)
 
 ```bash
-cabal new-build -w ghc-8.4.1
+cabal new-build -w ghc-8.6.1
 # build & run the test suite
-cabal new-test -w ghc-8.4.1 all
+cabal new-test -w ghc-8.6.1 all
 ```
 
 #### Using Cabal sandboxes
diff --git a/haddock-api/haddock-api.cabal b/haddock-api/haddock-api.cabal
index e1a52824375af3915b2bad743de12fd9838607c9..fa14eb50f1af5adced8094b6fc92bcb3385fca68 100644
--- a/haddock-api/haddock-api.cabal
+++ b/haddock-api/haddock-api.cabal
@@ -1,13 +1,13 @@
 cabal-version:        2.0
 name:                 haddock-api
-version:              2.20.0
+version:              2.21.0
 synopsis:             A documentation-generation tool for Haskell libraries
 description:          Haddock is a documentation-generation tool for Haskell
                       libraries
 license:              BSD3
 license-file:         LICENSE
 author:               Simon Marlow, David Waern
-maintainer:           Alex Biehl <alexbiehl@gmail.com>, Simon Hengel <sol@typeful.net>, Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
+maintainer:           Alec Theriault <alec.theriault@gmail.com>, Alex Biehl <alexbiehl@gmail.com>, Simon Hengel <sol@typeful.net>, Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
 homepage:             http://www.haskell.org/haddock/
 bug-reports:          https://github.com/haskell/haddock/issues
 copyright:            (c) Simon Marlow, David Waern
@@ -41,10 +41,10 @@ library
 
   -- this package typically supports only single major versions
   build-depends: base            ^>= 4.12.0
-               , Cabal           ^>= 2.3.0
+               , Cabal           ^>= 2.4.0
                , ghc             ^>= 8.6
                , ghc-paths       ^>= 0.1.0.9
-               , haddock-library ^>= 1.6.0
+               , haddock-library ^>= 1.7.0
                , xhtml           ^>= 3000.2.2
 
   -- Versions for the dependencies below are transitively pinned by
@@ -166,10 +166,10 @@ test-suite spec
     Haddock.Backends.Hyperlinker.Parser
     Haddock.Backends.Hyperlinker.Types
 
-  build-depends: Cabal           ^>= 2.3
+  build-depends: Cabal           ^>= 2.4
                , ghc             ^>= 8.6
                , ghc-paths       ^>= 0.1.0.9
-               , haddock-library ^>= 1.6.0
+               , haddock-library ^>= 1.7.0
                , xhtml           ^>= 3000.2.2
                , hspec           >= 2.4.4 && < 2.6
                , QuickCheck      ^>= 2.11
diff --git a/haddock-library/CHANGES.md b/haddock-library/CHANGES.md
index e41b808784db1432321176bbbbf782338ad862c1..ec30a4d38364f5ede3897ab892cfc7f91dafa530 100644
--- a/haddock-library/CHANGES.md
+++ b/haddock-library/CHANGES.md
@@ -1,3 +1,7 @@
+## Changes in version 1.7.0
+
+ * Replace `attoparsec` with `parsec` (#799)
+
 ## Changes in version 1.6.0
 
  * `MetaDoc` stores package name for since annotations
diff --git a/haddock-library/haddock-library.cabal b/haddock-library/haddock-library.cabal
index 1fc3f772a39f92a0e90d99bb55a3e3096d286dee..820a36ad3e49cdaf42b75cee99f65357afc4819a 100644
--- a/haddock-library/haddock-library.cabal
+++ b/haddock-library/haddock-library.cabal
@@ -1,6 +1,6 @@
 cabal-version:        2.0
 name:                 haddock-library
-version:              1.6.0
+version:              1.7.0
 synopsis:             Library exposing some functionality of Haddock.
 description:          Haddock is a documentation-generation tool for Haskell
                       libraries. These modules expose some functionality of it
@@ -10,7 +10,7 @@ description:          Haddock is a documentation-generation tool for Haskell
                       itself, see the ‘haddock’ package.
 license:              BSD3
 license-files:        LICENSE
-maintainer:           Alex Biehl <alexbiehl@gmail.com>, Simon Hengel <sol@typeful.net>, Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
+maintainer:           Alec Theriault <alec.theriault@gmail.com>, Alex Biehl <alexbiehl@gmail.com>, Simon Hengel <sol@typeful.net>, Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
 homepage:             http://www.haskell.org/haddock/
 bug-reports:          https://github.com/haskell/haddock/issues
 category:             Documentation
diff --git a/haddock.cabal b/haddock.cabal
index 29d3d11446b29610ffcbcd2aa10c0a0841130591..1c84562d23bb9f159d878f608d4cc3fcb3dfbc18 100644
--- a/haddock.cabal
+++ b/haddock.cabal
@@ -1,6 +1,6 @@
 cabal-version:        2.0
 name:                 haddock
-version:              2.20.0
+version:              2.21.0
 synopsis:             A documentation-generation tool for Haskell libraries
 description:
   This is Haddock, a tool for automatically generating documentation
@@ -23,17 +23,17 @@ description:
   without any documentation annotations, Haddock can generate useful documentation
   from your source code.
   .
-  <<https://cdn.rawgit.com/haskell/haddock/master/doc/cheatsheet/haddocks.svg>>
+  <<https://cdn.rawgit.com/haskell/haddock/ghc-8.6/doc/cheatsheet/haddocks.svg>>
 license:              BSD3
 license-file:         LICENSE
 author:               Simon Marlow, David Waern
-maintainer:           Alex Biehl <alexbiehl@gmail.com>, Simon Hengel <sol@typeful.net>, Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
+maintainer:           Alec Theriault <alec.theriault@gmail.com>, Alex Biehl <alexbiehl@gmail.com>, Simon Hengel <sol@typeful.net>, Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
 homepage:             http://www.haskell.org/haddock/
 bug-reports:          https://github.com/haskell/haddock/issues
 copyright:            (c) Simon Marlow, David Waern
 category:             Documentation
 build-type:           Simple
-tested-with:          GHC==8.4.*
+tested-with:          GHC==8.6.*
 
 extra-source-files:
   CHANGES.md
@@ -142,7 +142,7 @@ executable haddock
   else
     -- in order for haddock's advertised version number to have proper meaning,
     -- we pin down to a single haddock-api version.
-    build-depends:  haddock-api == 2.20.0
+    build-depends:  haddock-api == 2.21.0
 
 test-suite html-test
   type:             exitcode-stdio-1.0