diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,11 +1,14 @@
+0.2.0.11 (2021-11-02):
+    - Added `Tested-With: GHC == 9.2.1` (didn't actually need to
+      nudge the upper bound on 'base', because it's already lenient)
 0.2.0.10 (2021-10-16):
-	- Changed from TravisCI to GithubActions
+    - Changed from TravisCI to GithubActions
 0.2.0.9 (2019-04-13):
     - Changed cabal to use Simple build type, to support cabal's new-build.
-	- Removed the CPP hack for Haddock documentation, as part
-	  of switching to the Simple build type.
-	- Using BangPatterns in lieu of the old seq-undefined-guard trick.
-	- Added TravisCI integration
+    - Removed the CPP hack for Haddock documentation, as part
+      of switching to the Simple build type.
+    - Using BangPatterns in lieu of the old seq-undefined-guard trick.
+    - Added TravisCI integration
 0.2.0.8 (2015-05-30):
     - Moved VERSION to CHANGELOG
 0.2.0.4 (2012-09-26):
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -9,29 +9,10 @@
 
 ## Install
 
-This is a simple package and should be easy to install via any of
-the standared methods:
+This is a simple package and should be easy to install via the
+standared method:
 
-    -- With cabal-install and without the source:
-    $> cabal new-install exact-combinatorics
-    -- or:
     $> cabal install exact-combinatorics
-    
-    -- With cabal-install and with the source already:
-    $> cd exact-combinatorics
-    $> cabal install
-    
-    -- Without cabal-install, but with the source already:
-    $> cd exact-combinatorics
-    $> runhaskell Setup.hs configure --user
-    $> runhaskell Setup.hs build
-    $> runhaskell Setup.hs test
-    $> runhaskell Setup.hs haddock --hyperlink-source
-    $> runhaskell Setup.hs copy
-    $> runhaskell Setup.hs register
-
-The test step is optional and currently does nothing. The Haddock
-step is also optional.
 
 
 ## Portability
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -1,27 +1,7 @@
 #!/usr/bin/env runhaskell
--- Cf. <http://www.mail-archive.com/haskell-cafe@haskell.org/msg59984.html>
--- <http://www.haskell.org/pipermail/haskell-cafe/2008-December/051785.html>
 
-{-# OPTIONS_GHC -Wall -fwarn-tabs -fno-warn-missing-signatures #-}
 module Main (main) where
 import Distribution.Simple
-import Distribution.Simple.LocalBuildInfo (withPrograms)
-import Distribution.Simple.Program        (userSpecifyArgs)
-----------------------------------------------------------------
 
--- | Define __HADDOCK__ when building documentation.
 main :: IO ()
-main = defaultMainWithHooks
-    $ simpleUserHooks `modify_haddockHook` \oldHH pkg lbi hooks flags -> do
-        
-        -- Call the old haddockHook with a modified LocalBuildInfo
-        (\lbi' -> oldHH pkg lbi' hooks flags)
-            $ lbi `modify_withPrograms` \oldWP ->
-                userSpecifyArgs "haddock" ["--optghc=-D__HADDOCK__"] oldWP
-
-
-modify_haddockHook  hooks f = hooks { haddockHook  = f (haddockHook  hooks) }
-modify_withPrograms lbi   f = lbi   { withPrograms = f (withPrograms lbi)   }
-
-----------------------------------------------------------------
------------------------------------------------------------ fin.
+main  = defaultMain
diff --git a/exact-combinatorics.cabal b/exact-combinatorics.cabal
--- a/exact-combinatorics.cabal
+++ b/exact-combinatorics.cabal
@@ -1,5 +1,5 @@
 ----------------------------------------------------------------
--- wren gayle romano <wren@cpan.org>                ~ 2021.10.16
+-- wren gayle romano <wren@cpan.org>                ~ 2021.11.02
 ----------------------------------------------------------------
 
 -- Cabal >=1.10 is required by Hackage.
@@ -7,12 +7,13 @@
 Build-Type:     Simple
 
 Name:           exact-combinatorics
-Version:        0.2.0.10
+Version:        0.2.0.11
 Stability:      experimental
-Homepage:       https://wrengr.org/
+Homepage:       https://wrengr.org/software/hackage.html
+Bug-Reports:    https://github.com/wrengr/exact-combinatorics/issues
 Author:         wren gayle romano
 Maintainer:     wren@cpan.org
-Copyright:      Copyright (c) 2011--2021 wren gayle romano
+Copyright:      Copyright (c) 2011–2021 wren gayle romano
 License:        BSD3
 License-File:   LICENSE
 
@@ -32,7 +33,8 @@
     GHC ==8.6.5,
     GHC ==8.8.4,
     GHC ==8.10.3,
-    GHC ==9.0.1
+    GHC ==9.0.1,
+    GHC ==9.2.1
 
 Source-Repository head
     Type:     git
@@ -46,7 +48,7 @@
                    , Math.Combinatorics.Exact.Factorial
                    , Math.Combinatorics.Exact.Binomial
     -- Data.IntList
-    
+
     -- The lower bound is more restrictive than necessary.
     -- But then, we don't maintain any CI tests for older
     -- versions, so these are the lowest bounds we've verified.
diff --git a/src/Math/Combinatorics/Exact/Binomial.hs b/src/Math/Combinatorics/Exact/Binomial.hs
--- a/src/Math/Combinatorics/Exact/Binomial.hs
+++ b/src/Math/Combinatorics/Exact/Binomial.hs
@@ -1,11 +1,11 @@
 {-# OPTIONS_GHC -Wall -fwarn-tabs #-}
 ----------------------------------------------------------------
---                                                    2012.09.26
+--                                                    2021.10.17
 -- |
 -- Module      :  Math.Combinatorics.Exact.Binomial
--- Copyright   :  Copyright (c) 2011--2019 wren gayle romano
+-- Copyright   :  Copyright (c) 2011--2021 wren gayle romano
 -- License     :  BSD
--- Maintainer  :  wren@community.haskell.org
+-- Maintainer  :  wren@cpan.org
 -- Stability   :  experimental
 -- Portability :  Haskell98
 --
diff --git a/src/Math/Combinatorics/Exact/Factorial.hs b/src/Math/Combinatorics/Exact/Factorial.hs
--- a/src/Math/Combinatorics/Exact/Factorial.hs
+++ b/src/Math/Combinatorics/Exact/Factorial.hs
@@ -1,12 +1,12 @@
 {-# OPTIONS_GHC -Wall -fwarn-tabs #-}
 {-# LANGUAGE BangPatterns #-}
 ----------------------------------------------------------------
---                                                    2019.04.13
+--                                                    2021.10.17
 -- |
 -- Module      :  Math.Combinatorics.Exact.Factorial
--- Copyright   :  Copyright (c) 2011--2019 wren gayle romano
+-- Copyright   :  Copyright (c) 2011--2021 wren gayle romano
 -- License     :  BSD
--- Maintainer  :  wren@community.haskell.org
+-- Maintainer  :  wren@cpan.org
 -- Stability   :  experimental
 -- Portability :  Haskell98 + BangPatterns
 --
diff --git a/src/Math/Combinatorics/Exact/Primes.hs b/src/Math/Combinatorics/Exact/Primes.hs
--- a/src/Math/Combinatorics/Exact/Primes.hs
+++ b/src/Math/Combinatorics/Exact/Primes.hs
@@ -5,12 +5,12 @@
     -fno-warn-name-shadowing
     #-}
 ----------------------------------------------------------------
---                                                    2012.02.02
+--                                                    2021.10.17
 -- |
 -- Module      :  Math.Combinatorics.Exact.Primes
--- Copyright   :  Copyright (c) 2011--2019 wren gayle romano
+-- Copyright   :  Copyright (c) 2011--2021 wren gayle romano
 -- License     :  BSD
--- Maintainer  :  wren@community.haskell.org
+-- Maintainer  :  wren@cpan.org
 -- Stability   :  experimental
 -- Portability :  Haskell98
 --
