diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,15 @@
 
 [KaC]: <https://keepachangelog.com/en/1.0.0/>
 
+## 0.2.1.0 (2020-05-11)
+
+### Non-Breaking
+
+* Update examples to support older libraries
+* Refactor `Makefile`, add `STACK_NIX_PATH` support
+* Add `test-all` command to `Makefile`
+* Bump `tasty` dependency version upper bound
+
 ## 0.2.0.0 (2019-12-15)
 
 ### Non-Breaking
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2019 Travis Cardwell
+Copyright (c) 2019-2020 Travis Cardwell
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/src/Data/TTC.hs b/src/Data/TTC.hs
--- a/src/Data/TTC.hs
+++ b/src/Data/TTC.hs
@@ -2,7 +2,7 @@
 -- |
 -- Module      : Data.TTC
 -- Description : textual type classes
--- Copyright   : Copyright (c) 2019 Travis Cardwell
+-- Copyright   : Copyright (c) 2019-2020 Travis Cardwell
 -- License     : MIT
 --
 -- TTC, an initialism of /Textual Type Classes/, is a library that provides
diff --git a/src/Data/TTC/Instances.hs b/src/Data/TTC/Instances.hs
--- a/src/Data/TTC/Instances.hs
+++ b/src/Data/TTC/Instances.hs
@@ -2,7 +2,7 @@
 -- |
 -- Module      : Data.TTC.Instances
 -- Description : instances for basic data types
--- Copyright   : Copyright (c) 2019 Travis Cardwell
+-- Copyright   : Copyright (c) 2019-2020 Travis Cardwell
 -- License     : MIT
 --
 -- This module defines TTC 'TTC.Render' and 'TTC.Parse' instances for some
diff --git a/ttc.cabal b/ttc.cabal
--- a/ttc.cabal
+++ b/ttc.cabal
@@ -1,5 +1,5 @@
 name:           ttc
-version:        0.2.0.0
+version:        0.2.1.0
 category:       Data, Text
 synopsis:       Textual Type Classes
 description:
@@ -11,7 +11,7 @@
 bug-reports:    https://github.com/ExtremaIS/ttc-haskell/issues
 author:         Travis Cardwell <travis.cardwell@extrema.is>
 maintainer:     Travis Cardwell <travis.cardwell@extrema.is>
-copyright:      Copyright (c) 2019 Travis Cardwell
+copyright:      Copyright (c) 2019-2020 Travis Cardwell
 license:        MIT
 license-file:   LICENSE
 
@@ -21,7 +21,7 @@
   GHC ==8.2.2
    || ==8.4.4
    || ==8.6.5
-   || ==8.8.1
+   || ==8.8.3
 
 extra-source-files:
   CHANGELOG.md
@@ -55,7 +55,7 @@
   build-depends:
       base
     , bytestring
-    , tasty >=1.0 && <1.3
+    , tasty >=1.0 && <1.4
     , tasty-hunit >=0.10 && <0.11
     , template-haskell
     , text