diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Package Versioning Policy](https://wiki.haskell.org/Package_versioning_policy).
 
+## [2.3.0.1] - 2017-12-28
+
+### Removed
+- Log output that littered stdout in modify many commands.
+
 ## [2.3.0] - 2017-05-31
 
 ### Changed
diff --git a/Database/MongoDB/Query.hs b/Database/MongoDB/Query.hs
--- a/Database/MongoDB/Query.hs
+++ b/Database/MongoDB/Query.hs
@@ -782,7 +782,6 @@
                                               ++ (show unknownErr)]
 
       let upsertedList = map docToUpserted $ fromMaybe [] (doc !? "upserted")
-      liftIO $ putStrLn $ show doc
       let successResults = WriteResult False n (doc !? "nModified") 0 upsertedList [] []
       return $ foldl1' mergeWriteResults [writeErrorsResults, writeConcernResults, successResults]
 
@@ -938,7 +937,6 @@
                           Confirm params -> params
       doc <- runCommand $ deleteCommandDocument col ordered docs writeConcern
       let n = fromMaybe 0 $ doc !? "n"
-      liftIO $ putStrLn $ "result of delete block: " ++ (show n)
 
       let successResults = WriteResult False 0 Nothing n [] [] []
       let writeErrorsResults =
diff --git a/mongoDB.cabal b/mongoDB.cabal
--- a/mongoDB.cabal
+++ b/mongoDB.cabal
@@ -1,5 +1,5 @@
 Name:           mongoDB
-Version:        2.3.0
+Version:        2.3.0.1
 Synopsis:       Driver (client) for MongoDB, a free, scalable, fast, document
                 DBMS
 Description:    This package lets you connect to MongoDB servers and