diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Revision history for beam-automigrate
 
+## 0.1.0.1
+
+* Loosen time version bounds
+* readme: Fix warning about a transaction already running
+* Support for GHC 8.10
+
 ## 0.1.0.0
 
 * Initial release. Generate schemas and migrations for beam databases. See limitations in [README.md](README.md)
diff --git a/README.lhs b/README.lhs
--- a/README.lhs
+++ b/README.lhs
@@ -272,8 +272,9 @@
 >     BA.printMigration $ BA.migrate conn hsSchema
 >
 > exampleAutoMigration :: IO ()
-> exampleAutoMigration = readmeDbTransaction $ \conn ->
->   BA.tryRunMigrationsWithEditUpdate annotatedDB conn
+> exampleAutoMigration = withDb "readme-db" $ \pool ->
+>   withResource pool $ \conn ->
+>     BA.tryRunMigrationsWithEditUpdate annotatedDB conn
 >
 > main :: IO ()
 > main = do
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -272,8 +272,9 @@
 >     BA.printMigration $ BA.migrate conn hsSchema
 >
 > exampleAutoMigration :: IO ()
-> exampleAutoMigration = readmeDbTransaction $ \conn ->
->   BA.tryRunMigrationsWithEditUpdate annotatedDB conn
+> exampleAutoMigration = withDb "readme-db" $ \pool ->
+>   withResource pool $ \conn ->
+>     BA.tryRunMigrationsWithEditUpdate annotatedDB conn
 >
 > main :: IO ()
 > main = do
diff --git a/beam-automigrate.cabal b/beam-automigrate.cabal
--- a/beam-automigrate.cabal
+++ b/beam-automigrate.cabal
@@ -1,5 +1,5 @@
 name:               beam-automigrate
-version:            0.1.0.0
+version:            0.1.0.1
 license-file:       LICENSE
 build-type:         Simple
 cabal-version:      >=1.10
@@ -22,6 +22,8 @@
   README.md
   CHANGELOG.md
 
+tested-with:        GHC ==8.6.5 || ==8.8.4 || ==8.10.2
+
 library
   exposed-modules:
     Database.Beam.AutoMigrate
@@ -49,14 +51,14 @@
     , microlens             >=0.4.10   && <0.6
     , mtl                   >=2.2.2    && <2.4
     , postgresql-simple     >=0.5.4    && <0.7.0.0
-    , pretty-simple         >=2.2.0    && <2.3
+    , pretty-simple         >=2.2.0    && <3.3
     , QuickCheck            >=2.13     && <2.15
     , quickcheck-instances  >=0.3      && <0.4
     , scientific            >=0.3.6    && <0.5
     , splitmix              >=0.0.3    && <0.1
     , string-conv           >=0.1.2    && <0.3
     , text                  >=1.2.0.0  && <1.3.0.0
-    , time                  >=1.8.0    && <1.9
+    , time                  >=1.8.0    && <2
     , transformers          >=0.5.6    && <0.7
     , uuid                  >=1.3      && <1.4
     , vector                >=0.12.0.3 && <0.13.0.0
diff --git a/bench/Main.hs b/bench/Main.hs
--- a/bench/Main.hs
+++ b/bench/Main.hs
@@ -6,9 +6,9 @@
 import Control.Monad.IO.Class (liftIO)
 import Criterion.Main
 import qualified Data.Map.Strict as M
-import Database.Beam.Migrate.New
-import Database.Beam.Migrate.New.BenchUtil
-import Database.Beam.Migrate.New.Postgres (getSchema)
+import Database.Beam.AutoMigrate
+import Database.Beam.AutoMigrate.BenchUtil
+import Database.Beam.AutoMigrate.Postgres (getSchema)
 import Database.Beam.Postgres (runBeamPostgres)
 import qualified Database.PostgreSQL.Simple as Pg
 
diff --git a/src/Database/Beam/AutoMigrate/Postgres.hs b/src/Database/Beam/AutoMigrate/Postgres.hs
--- a/src/Database/Beam/AutoMigrate/Postgres.hs
+++ b/src/Database/Beam/AutoMigrate/Postgres.hs
@@ -28,7 +28,7 @@
 import Database.Beam.Backend.SQL hiding (tableName)
 import qualified Database.Beam.Backend.SQL.AST as AST
 import qualified Database.PostgreSQL.Simple as Pg
-import Database.PostgreSQL.Simple.FromField (FromField (..), fromField)
+import Database.PostgreSQL.Simple.FromField (FromField (..), fromField, returnError)
 import Database.PostgreSQL.Simple.FromRow (FromRow (..), field)
 import qualified Database.PostgreSQL.Simple.TypeInfo.Static as Pg
 import qualified Database.PostgreSQL.Simple.Types as Pg
@@ -84,11 +84,11 @@
 
 instance FromField SqlRawOtherConstraintType where
   fromField f dat = do
-    t <- fromField f dat
+    t :: String <- fromField f dat
     case t of
       "p" -> pure SQL_raw_pk
       "u" -> pure SQL_raw_unique
-      _ -> fail ("Unexpected costraint type: " <> t)
+      _ -> returnError Pg.ConversionFailed f t
 
 --
 -- Postgres queries to extract the schema out of the DB