diff --git a/build.sbt b/build.sbt
index b5d71daae..cf41630d1 100644
--- a/build.sbt
+++ b/build.sbt
@@ -100,7 +100,7 @@ lazy val utilComplete = (project in internalPath / "util-complete").
     testedBaseSettings,
     // Util.crossBuild,
     name := "Util Completion",
-    libraryDependencies ++= Seq(jline, ioProj),
+    libraryDependencies ++= Seq(jline, sbtIO),
     crossScalaVersions := Seq(scala210, scala211)
   )
 
@@ -135,7 +135,7 @@ lazy val utilCache = (project in internalPath / "util-cache").
   settings(
     commonSettings,
     name := "Util Cache",
-    libraryDependencies ++= Seq(sbinary, sbtSerialization, scalaReflect.value, ioProj) ++ scalaXml.value
+    libraryDependencies ++= Seq(sbinary, sbtSerialization, scalaReflect.value, sbtIO) ++ scalaXml.value
   )
 
 // Builds on cache to provide caching for filesystem-related operations
@@ -144,5 +144,5 @@ lazy val utilTracking = (project in internalPath / "util-tracking").
   settings(
     commonSettings,
     name := "Util Tracking",
-    libraryDependencies ++= Seq(ioProj)
+    libraryDependencies ++= Seq(sbtIO)
   )
diff --git a/internal/util-cache/src/main/scala/sbt/CacheIO.scala b/internal/util-cache/src/main/scala/sbt/CacheIO.scala
index a50da7ee7..3bb952330 100644
--- a/internal/util-cache/src/main/scala/sbt/CacheIO.scala
+++ b/internal/util-cache/src/main/scala/sbt/CacheIO.scala
@@ -6,6 +6,7 @@ package sbt
 import java.io.{ File, FileNotFoundException }
 import sbinary.{ DefaultProtocol, Format, Operations }
 import scala.reflect.Manifest
+import sbt.io.IO
 
 object CacheIO {
   def toBytes[T](format: Format[T])(value: T)(implicit mf: Manifest[Format[T]]): Array[Byte] =
@@ -41,4 +42,4 @@ object CacheIO {
   def typeHash[T](implicit mf: Manifest[T]) = mf.toString.hashCode
   def manifest[T](implicit mf: Manifest[T]): Manifest[T] = mf
   def objManifest[T](t: T)(implicit mf: Manifest[T]): Manifest[T] = mf
-}
\ No newline at end of file
+}
diff --git a/internal/util-cache/src/main/scala/sbt/FileInfo.scala b/internal/util-cache/src/main/scala/sbt/FileInfo.scala
index c735adcb0..12002c508 100644
--- a/internal/util-cache/src/main/scala/sbt/FileInfo.scala
+++ b/internal/util-cache/src/main/scala/sbt/FileInfo.scala
@@ -7,6 +7,7 @@ import java.io.{ File, IOException }
 import sbinary.{ DefaultProtocol, Format }
 import DefaultProtocol._
 import scala.reflect.Manifest
+import sbt.io.Hash
 
 sealed trait FileInfo extends NotNull {
   val file: File
@@ -103,4 +104,4 @@ object FilesInfo {
   implicit def hashInputsCache: InputCache[FilesInfo[HashFileInfo]] = hash.infosInputCache
   implicit def modifiedInputsCache: InputCache[FilesInfo[ModifiedFileInfo]] = lastModified.infosInputCache
   implicit def fullInputsCache: InputCache[FilesInfo[HashModifiedFileInfo]] = full.infosInputCache
-}
\ No newline at end of file
+}
diff --git a/internal/util-cache/src/main/scala/sbt/SeparatedCache.scala b/internal/util-cache/src/main/scala/sbt/SeparatedCache.scala
index 9d11f1f3c..1022832d6 100644
--- a/internal/util-cache/src/main/scala/sbt/SeparatedCache.scala
+++ b/internal/util-cache/src/main/scala/sbt/SeparatedCache.scala
@@ -7,6 +7,7 @@ import Types.:+:
 import sbinary.{ DefaultProtocol, Format, Input, Output => Out }
 import DefaultProtocol.ByteFormat
 import java.io.{ File, InputStream, OutputStream }
+import sbt.internal.io.Using
 
 trait InputCache[I] {
   type Internal
@@ -59,4 +60,4 @@ class BasicCache[I, O](implicit input: InputCache[I], outFormat: Format[O]) exte
         outFormat.writes(stream, out)
       }
     }
-}
\ No newline at end of file
+}
diff --git a/internal/util-complete/src/main/scala/sbt/complete/ExampleSource.scala b/internal/util-complete/src/main/scala/sbt/complete/ExampleSource.scala
index 52d96246b..ab2d39b4c 100644
--- a/internal/util-complete/src/main/scala/sbt/complete/ExampleSource.scala
+++ b/internal/util-complete/src/main/scala/sbt/complete/ExampleSource.scala
@@ -1,7 +1,7 @@
 package sbt.complete
 
 import java.io.File
-import sbt.IO
+import sbt.io.IO
 
 /**
  * These sources of examples are used in parsers for user input completion. An example of such a source is the
@@ -56,4 +56,4 @@ class FileExamples(base: File, prefix: String = "") extends ExampleSource {
 
   private def dirStartsWithPrefix(relativizedPath: String): Boolean =
     (relativizedPath startsWith prefix) || (prefix startsWith relativizedPath)
-}
\ No newline at end of file
+}
diff --git a/internal/util-complete/src/main/scala/sbt/complete/HistoryCommands.scala b/internal/util-complete/src/main/scala/sbt/complete/HistoryCommands.scala
index 1e124c583..c82ecfa3d 100644
--- a/internal/util-complete/src/main/scala/sbt/complete/HistoryCommands.scala
+++ b/internal/util-complete/src/main/scala/sbt/complete/HistoryCommands.scala
@@ -5,6 +5,7 @@ package sbt
 package complete
 
 import java.io.File
+import sbt.io.IO
 
 object HistoryCommands {
   val Start = "!"
@@ -70,4 +71,4 @@ object HistoryCommands {
 
   val actionParser: Parser[complete.History => Option[List[String]]] =
     Start ~> (help | last | execInt | list | execStr) // execStr must come last
-}
\ No newline at end of file
+}
diff --git a/internal/util-complete/src/test/scala/sbt/complete/FileExamplesTest.scala b/internal/util-complete/src/test/scala/sbt/complete/FileExamplesTest.scala
index effd9be78..f9cc77038 100644
--- a/internal/util-complete/src/test/scala/sbt/complete/FileExamplesTest.scala
+++ b/internal/util-complete/src/test/scala/sbt/complete/FileExamplesTest.scala
@@ -2,9 +2,8 @@ package sbt.complete
 
 import org.specs2.mutable.Specification
 import org.specs2.specification.Scope
-import sbt.IO.withTemporaryDirectory
 import java.io.File
-import sbt.IO._
+import sbt.io.IO._
 
 class FileExamplesTest extends Specification {
 
diff --git a/internal/util-tracking/src/main/scala/sbt/Tracked.scala b/internal/util-tracking/src/main/scala/sbt/Tracked.scala
index 0de466686..5c6979718 100644
--- a/internal/util-tracking/src/main/scala/sbt/Tracked.scala
+++ b/internal/util-tracking/src/main/scala/sbt/Tracked.scala
@@ -9,7 +9,9 @@ import sbinary.Format
 import scala.pickling.PicklingException
 import scala.reflect.Manifest
 import scala.collection.mutable
-import IO.{ delete, read, write }
+import sbt.io.IO.{ delete, read, write }
+import sbt.io.{ IO, Path }
+import sbt.internal.io.Using
 import sbt.serialization._
 
 object Tracked {
@@ -251,4 +253,4 @@ object FileFunction {
           }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 6782137dd..0313a7267 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -6,21 +6,15 @@ object Dependencies {
   lazy val scala211 = "2.11.7"
 
   val bootstrapSbtVersion = "0.13.8"
-  // lazy val interfaceProj = "org.scala-sbt" % "interface" % bootstrapSbtVersion
-  lazy val ioProj = "org.scala-sbt" % "io" % bootstrapSbtVersion
-  // lazy val collectionProj = "org.scala-sbt" % "collections" % bootstrapSbtVersion
-  // lazy val logProj = "org.scala-sbt" % "logging" % bootstrapSbtVersion
-  // lazy val crossProj = "org.scala-sbt" % "cross" % bootstrapSbtVersion
 
+  lazy val sbtIO = "org.scala-sbt" %% "io" % "1.0.0-M1"
   lazy val jline = "jline" % "jline" % "2.11"
-  // lazy val launcherInterface = "org.scala-sbt" % "launcher-interface" % "1.0.0-M1"
-  // lazy val ivy = "org.scala-sbt.ivy" % "ivy" % "2.3.0-sbt-927bc9ded7f8fba63297cddd0d5a3d01d6ad5d8d"
-  // lazy val jsch = "com.jcraft" % "jsch" % "0.1.46" intransitive ()
   lazy val sbtSerialization = "org.scala-sbt" %% "serialization" % "0.1.2"
   lazy val sbinary = "org.scala-tools.sbinary" %% "sbinary" % "0.4.2"
-  // lazy val junit = "junit" % "junit" % "4.11"
+
   lazy val scalaCompiler = Def.setting { "org.scala-lang" % "scala-compiler" % scalaVersion.value }
   lazy val scalaReflect = Def.setting { "org.scala-lang" % "scala-reflect" % scalaVersion.value }
+
   private def scala211Module(name: String, moduleVersion: String) =
     Def.setting {
       scalaVersion.value match {
@@ -28,6 +22,7 @@ object Dependencies {
         case _ => ("org.scala-lang.modules" %% name % moduleVersion) :: Nil
       }
     }
+
   lazy val scalaXml = scala211Module("scala-xml", "1.0.1")
 
   lazy val scalaCheck = "org.scalacheck" %% "scalacheck" % "1.11.4"