diff --git a/refurb.cabal b/refurb.cabal
--- a/refurb.cabal
+++ b/refurb.cabal
@@ -1,35 +1,39 @@
--- This file has been generated from package.yaml by hpack version 0.17.0.
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.33.0.
 --
 -- see: https://github.com/sol/hpack
+--
+-- hash: 303cc00ec1aa1ac86c703c9836382d92da8bacf61b4c4bbb124b5ba6f9343df8
 
 name:           refurb
-version:        0.2.2.0
+version:        0.2.3.0
 synopsis:       Tools for maintaining a database
 description:    Tools for maintaining a database
 category:       Database
-homepage:       https://github.com/ConferHealth/refurb#readme
-maintainer:     oss@confer.care
-copyright:      2017 Confer Health, Inc.
+homepage:       https://github.com/ConferOpenSource/refurb#readme
+maintainer:     oss@vitalbio.com
+copyright:      2017 Confer Health, Inc., 2020 Vital Biosciences
 license:        BSD3
 license-file:   LICENSE
 build-type:     Simple
-cabal-version:  >= 1.10
 
 library
   hs-source-dirs:
       src
-  default-extensions: Arrows ConstraintKinds DataKinds DeriveGeneric FlexibleContexts FlexibleInstances GADTs GeneralizedNewtypeDeriving LambdaCase MultiParamTypeClasses NamedFieldPuns NoImplicitPrelude OverloadedStrings PatternSynonyms QuasiQuotes RankNTypes RecordWildCards ScopedTypeVariables StandaloneDeriving TemplateHaskell TypeApplications TypeFamilies TypeOperators ViewPatterns
   ghc-options: -Wall -O2
   build-depends:
-      base >= 4.7 && < 5
-    , ansi-wl-pprint
+      ansi-wl-pprint
+    , base >=4.7 && <5
     , bytestring
     , classy-prelude
     , composite-base
     , composite-opaleye
     , dlist
+    , exceptions
     , fast-logger
     , lens
+    , monad-control
     , monad-logger
     , old-locale
     , opaleye
@@ -40,7 +44,9 @@
     , template-haskell
     , text
     , these
+    , these-lens
     , thyme
+    , transformers-base
     , vector-space
   exposed-modules:
       Refurb
@@ -52,6 +58,8 @@
       Refurb.Run.Migrate
       Refurb.Store
       Refurb.Types
+  other-modules:
+      Paths_refurb
   default-language: Haskell2010
 
 test-suite refurb-test
@@ -59,18 +67,20 @@
   main-is: Main.hs
   hs-source-dirs:
       test
-  default-extensions: Arrows ConstraintKinds DataKinds DeriveGeneric FlexibleContexts FlexibleInstances GADTs GeneralizedNewtypeDeriving LambdaCase MultiParamTypeClasses NamedFieldPuns NoImplicitPrelude OverloadedStrings PatternSynonyms QuasiQuotes RankNTypes RecordWildCards ScopedTypeVariables StandaloneDeriving TemplateHaskell TypeApplications TypeFamilies TypeOperators ViewPatterns
   ghc-options: -Wall -O2 -threaded -rtsopts -with-rtsopts=-N -fno-warn-orphans
   build-depends:
-      base >= 4.7 && < 5
-    , ansi-wl-pprint
+      ansi-wl-pprint
+    , base >=4.7 && <5
     , bytestring
     , classy-prelude
     , composite-base
     , composite-opaleye
     , dlist
+    , exceptions
     , fast-logger
+    , hspec
     , lens
+    , monad-control
     , monad-logger
     , old-locale
     , opaleye
@@ -78,13 +88,15 @@
     , postgresql-simple
     , process
     , product-profunctors
+    , refurb
     , template-haskell
     , text
     , these
+    , these-lens
     , thyme
+    , transformers-base
     , vector-space
-    , refurb
-    , hspec
   other-modules:
       MigrationUtilsSpec
+      Paths_refurb
   default-language: Haskell2010
diff --git a/src/Refurb.hs b/src/Refurb.hs
--- a/src/Refurb.hs
+++ b/src/Refurb.hs
@@ -1,3 +1,7 @@
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE TemplateHaskell #-}
 -- |Top level module of Refurb along which re-exports the library portion of Refurb ('Refurb.Types' and 'Refurb.MigrationUtils')
 module Refurb
   ( refurbMain
@@ -6,6 +10,7 @@
   ) where
 
 import ClassyPrelude
+import Control.Monad.Base (liftBase)
 import Control.Monad.Logger (LogLevel(LevelDebug), filterLogger, logDebug, runStdoutLoggingT)
 import qualified Database.PostgreSQL.Simple as PG
 import qualified Options.Applicative as OA
diff --git a/src/Refurb/Cli.hs b/src/Refurb/Cli.hs
--- a/src/Refurb/Cli.hs
+++ b/src/Refurb/Cli.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE NoImplicitPrelude #-}
 -- |Module with @optparse-applicative@ parsers for and datatypes to represent the command line arguments.
 module Refurb.Cli where
 
diff --git a/src/Refurb/MigrationUtils.hs b/src/Refurb/MigrationUtils.hs
--- a/src/Refurb/MigrationUtils.hs
+++ b/src/Refurb/MigrationUtils.hs
@@ -1,7 +1,13 @@
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE ViewPatterns #-}
 -- |Utilities for writing migrations.
 module Refurb.MigrationUtils where
 
 import ClassyPrelude
+import Control.Monad.Base (liftBase)
 import Control.Monad.Logger (logDebug)
 import Data.Profunctor.Product.Default (Default)
 import qualified Data.Text as T
@@ -162,3 +168,8 @@
 doesTableExist :: MonadMigration m => Text -> Text -> m Bool
 doesTableExist schema table =
   not . (null :: [PG.Only Int] -> Bool) <$> query "select 1 from information_schema.tables where table_schema = ? and table_name = ?" (schema, table)
+
+-- |Check if a column exists in a schema on a table using the @information_schema@ views.
+doesColumnExist :: MonadMigration m => Text -> Text -> Text -> m Bool
+doesColumnExist schema table column =
+  not . (null :: [PG.Only Int] -> Bool) <$> query "select 1 from information_schema.columns where table_schema = ? and table_name = ? and column_name = ?" (schema, table, column)
diff --git a/src/Refurb/Run/Backup.hs b/src/Refurb/Run/Backup.hs
--- a/src/Refurb/Run/Backup.hs
+++ b/src/Refurb/Run/Backup.hs
@@ -1,6 +1,11 @@
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE TemplateHaskell #-}
 module Refurb.Run.Backup where
 
 import ClassyPrelude
+import Control.Monad.Base (liftBase)
 import Control.Monad.Logger (logInfo, logError)
 import Refurb.Run.Internal (MonadRefurb, contextDbConnInfo)
 import Refurb.Types (ConnInfo(ConnInfo), connDbName, connUser, connHost, connPort, connPassword)
diff --git a/src/Refurb/Run/Info.hs b/src/Refurb/Run/Info.hs
--- a/src/Refurb/Run/Info.hs
+++ b/src/Refurb/Run/Info.hs
@@ -1,3 +1,10 @@
+{-# LANGUAGE Arrows #-}
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE ViewPatterns #-}
 module Refurb.Run.Info where
 
 import ClassyPrelude
@@ -5,7 +12,12 @@
 import Control.Arrow (returnA)
 import Control.Lens (Getting, _Wrapped, each, preview, to, view)
 import Data.Monoid (First)
+#if MIN_VERSION_these(1,0,0)
+import Data.These (These(This, That, These))
+import Data.These.Lens (there)
+#else
 import Data.These (These(This, That, These), there)
+#endif
 import Data.Thyme.Clock (NominalDiffTime, fromSeconds)
 import Data.Thyme.Format.Human (humanTimeDiff)
 import Opaleye ((.==), constant, restrict)
diff --git a/src/Refurb/Run/Internal.hs b/src/Refurb/Run/Internal.hs
--- a/src/Refurb/Run/Internal.hs
+++ b/src/Refurb/Run/Internal.hs
@@ -1,8 +1,16 @@
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
 -- |Module containing shared types and functions used for implementing the various commands.
 module Refurb.Run.Internal where
 
 import ClassyPrelude
+import Control.Monad.Base (liftBase)
+import Control.Monad.Catch (MonadMask)
 import Control.Monad.Logger (MonadLogger, MonadLoggerIO)
+import Control.Monad.Trans.Control (MonadBaseControl)
 import qualified Database.PostgreSQL.Simple as PG
 import Refurb.Cli (Opts, colorize)
 import Refurb.Store (MigrationResult(MigrationSuccess, MigrationFailure))
@@ -44,4 +52,3 @@
 migrationResultDoc = \ case
   MigrationSuccess -> green (text "success")
   MigrationFailure -> red   (text "failure")
-
diff --git a/src/Refurb/Run/Migrate.hs b/src/Refurb/Run/Migrate.hs
--- a/src/Refurb/Run/Migrate.hs
+++ b/src/Refurb/Run/Migrate.hs
@@ -1,13 +1,24 @@
+{-# LANGUAGE Arrows #-}
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE PatternSynonyms #-}
 module Refurb.Run.Migrate where
 
 import ClassyPrelude hiding ((</>), defaultTimeLocale, getCurrentTime, formatTime)
 import Composite.Record (Record, pattern (:*:), pattern RNil)
 import Control.Arrow (returnA)
+import Control.Monad.Base (liftBase)
 import Control.Monad.Logger (askLoggerIO, runLoggingT)
 import Control.Lens (each, toListOf, view)
 import Data.AffineSpace ((.-.))
 import qualified Data.DList as DL
+#if MIN_VERSION_these(1,0,0)
+import Data.These.Lens (_This)
+#else
 import Data.These (_This)
+#endif
 import Data.Thyme.Clock (NominalDiffTime, getCurrentTime, toSeconds)
 import Data.Thyme.Format (formatTime)
 import Data.Thyme.Format.Human (humanTimeDiff)
@@ -33,7 +44,7 @@
 
 -- |Implement the @migrate@ command by verifying that seed data is only applied to non-production databases, reading the migration status, and determining
 -- from that status which migrations to apply. If the user requested execution of migrations, delegate to 'applyMigrations' to actually do the work.
-migrate :: MonadRefurb m => GoNoGo -> Maybe PreMigrationBackup -> InstallSeedData -> m ()
+migrate :: (MonadUnliftIO m, MonadRefurb m) => GoNoGo -> Maybe PreMigrationBackup -> InstallSeedData -> m ()
 migrate (GoNoGo isGo) backupMay (InstallSeedData shouldInstallSeedData) = do
   disp <- optionallyColoredM
   dbConn <- asks contextDbConn
@@ -58,7 +69,7 @@
 
 -- |Given a pre-vetted list of 'Migration' structures to apply to the database, iterate through them and run their check actions (if any) followed by
 -- execution actions with log output captured.
-applyMigrations :: MonadRefurb m => [Migration] -> m ()
+applyMigrations :: (MonadUnliftIO m, MonadRefurb m) => [Migration] -> m ()
 applyMigrations migrations = do
   disp <- optionallyColoredM
   dbConn <- asks contextDbConn
@@ -119,4 +130,3 @@
 nowLogString = do
   now <- getCurrentTime
   pure . toLogStr $ formatTime defaultTimeLocale "%Y-%m-%d %T%Q" now
-
diff --git a/src/Refurb/Store.hs b/src/Refurb/Store.hs
--- a/src/Refurb/Store.hs
+++ b/src/Refurb/Store.hs
@@ -1,3 +1,14 @@
+{-# LANGUAGE Arrows #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE TypeOperators #-}
+{-# LANGUAGE ViewPatterns #-}
 -- |Module containing definition of and functions for maintaining the in-database state storage for Refurb.
 module Refurb.Store where
 
@@ -8,7 +19,10 @@
 import Composite.TH (withLensesAndProxies)
 import Control.Arrow (returnA)
 import Control.Lens (view)
+import Control.Monad.Base (liftBase)
+import Control.Monad.Catch (MonadMask)
 import Control.Monad.Logger (MonadLogger, logDebug)
+import Control.Monad.Trans.Control (MonadBaseControl)
 import Data.These (These(This, These, That))
 import qualified Database.PostgreSQL.Simple as PG
 import Opaleye (Column, PGBool, PGInt4, PGFloat8, PGText, PGTimestamptz, QueryArr, Table(TableWithSchema), asc, orderBy, queryTable, runQuery)
@@ -135,4 +149,3 @@
       (aligned, extra) = foldr alignMigration ([], migrationLogByKey) migrations
 
   pure $ map That (toList extra) ++ aligned
-
diff --git a/src/Refurb/Types.hs b/src/Refurb/Types.hs
--- a/src/Refurb/Types.hs
+++ b/src/Refurb/Types.hs
@@ -1,3 +1,11 @@
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RankNTypes #-}
+{-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE TemplateHaskell #-}
 -- |Module containing externally useful types for Refurb, most notably the 'Migration' type.
 module Refurb.Types
   ( ConnInfo(..)
@@ -10,7 +18,9 @@
 
 import ClassyPrelude
 import Control.Lens.TH (makeLenses)
+import Control.Monad.Catch (MonadMask)
 import Control.Monad.Logger (MonadLogger)
+import Control.Monad.Trans.Control (MonadBaseControl)
 import qualified Data.ByteString.Char8 as BSC8
 import Data.Word (Word16)
 import qualified Database.PostgreSQL.Simple as PG
diff --git a/test/Main.hs b/test/Main.hs
--- a/test/Main.hs
+++ b/test/Main.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE NoImplicitPrelude #-}
+module Main where
 import ClassyPrelude
 import MigrationUtilsSpec (migrationUtilsSuite)
 import Test.Hspec (hspec)
diff --git a/test/MigrationUtilsSpec.hs b/test/MigrationUtilsSpec.hs
--- a/test/MigrationUtilsSpec.hs
+++ b/test/MigrationUtilsSpec.hs
@@ -1,3 +1,6 @@
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
 module MigrationUtilsSpec where
 
 import ClassyPrelude