diff --git a/project/build.properties b/project/build.properties
index 66ad72c..18297d2 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1,1 +1,1 @@
-sbt.version=0.12.2
+sbt.version=0.13.1
diff --git a/project/build.scala b/project/build.scala
index 493f34a..df88528 100644
--- a/project/build.scala
+++ b/project/build.scala
@@ -8,45 +8,14 @@ import java.awt.Desktop
 
 import scala.collection.immutable.IndexedSeq
 
-import sbtrelease._
-import sbtrelease.ReleasePlugin._
-import sbtrelease.ReleasePlugin.ReleaseKeys._
-import sbtrelease.ReleaseStateTransformations._
-import sbtrelease.Utilities._
-
-import com.typesafe.sbt.pgp.PgpKeys._
-
-import com.typesafe.sbtosgi.OsgiPlugin._
-
-import sbtbuildinfo.Plugin._
-
-import com.typesafe.tools.mima.plugin.MimaPlugin.mimaDefaultSettings
-import com.typesafe.tools.mima.plugin.MimaKeys.previousArtifact
-
 object build extends Build {
   type Sett = Project.Setting[_]
 
-  lazy val publishSignedArtifacts = ReleaseStep(
-    action = st => {
-      val extracted = st.extract
-      val ref = extracted.get(thisProjectRef)
-      extracted.runAggregated(publishSigned in Global in ref, st)
-    },
-    check = st => {
-      // getPublishTo fails if no publish repository is set up.
-      val ex = st.extract
-      val ref = ex.get(thisProjectRef)
-      Classpaths.getPublishTo(ex.get(publishTo in Global in ref))
-      st
-    },
-    enableCrossBuild = true
-  )
-
-  lazy val standardSettings: Seq[Sett] = Defaults.defaultSettings ++ sbtrelease.ReleasePlugin.releaseSettings ++ Seq[Sett](
+  lazy val standardSettings: Seq[Sett] = Defaults.defaultSettings ++ Seq[Sett](
     organization := "org.scalaz",
 
-    scalaVersion := "2.9.2",
-    crossScalaVersions := Seq("2.9.2", "2.9.3", "2.10.0"),
+    scalaVersion := "2.10.3",
+    crossScalaVersions := Seq(),
     resolvers += Resolver.sonatypeRepo("releases"),
 
     scalacOptions <++= (scalaVersion) map { sv =>
@@ -99,21 +68,6 @@ object build extends Build {
     publishSetting,
     publishArtifact in Test := false,
 
-    // adapted from sbt-release defaults
-    // (performs `publish-signed` instead of `publish`)
-    releaseProcess := Seq[ReleaseStep](
-      checkSnapshotDependencies,
-      inquireVersions,
-      runTest,
-      setReleaseVersion,
-      commitReleaseVersion,
-      tagRelease,
-      publishSignedArtifacts,
-      setNextVersion,
-      commitNextVersion,
-      pushChanges
-    ),
-
     pomIncludeRepository := {
       x => false
     },
@@ -154,10 +108,6 @@ object build extends Build {
         }
         </developers>
       )
-  ) ++ osgiSettings ++ Seq[Sett](
-    OsgiKeys.additionalHeaders := Map("-removeheaders" -> "Include-Resource,Private-Package")
-  ) ++ mimaDefaultSettings ++ Seq[Sett](
-    previousArtifact <<= (organization, name, scalaBinaryVersion) { (o, n, sbv) => Some(o % (n + "_" + sbv) % "7.0.0-RC2") }
   )
 
   lazy val scalaz = Project(
@@ -166,7 +116,6 @@ object build extends Build {
     settings = standardSettings ++ Unidoc.settings ++ Seq[Sett](
       // <https://github.com/scalaz/scalaz/issues/261>
       Unidoc.unidocExclude += "typelevel",
-      previousArtifact := None,
       publishArtifact := false
     ),
     aggregate = Seq(core, concurrent, effect, example, iterv, iteratee, scalacheckBinding, tests, typelevel, xml)
@@ -175,17 +124,12 @@ object build extends Build {
   lazy val core = Project(
     id = "core",
     base = file("core"),
-    settings = standardSettings ++ buildInfoSettings ++ Seq[Sett](
+    settings = standardSettings ++ Seq[Sett](
       name := "scalaz-core",
       typeClasses := TypeClass.core,
       sourceGenerators in Compile <+= (sourceManaged in Compile) map {
         dir => Seq(generateTupleW(dir))
-      },
-      sourceGenerators in Compile <+= buildInfo,
-      buildInfoKeys := Seq[BuildInfoKey](version, scalaVersion),
-      buildInfoPackage := "scalaz",
-      osgiExport("scalaz"),
-      OsgiKeys.importPackage := Seq("javax.swing;resolution:=optional", "*")
+      }
     )
   )
 
@@ -194,9 +138,7 @@ object build extends Build {
     base = file("concurrent"),
     settings = standardSettings ++ Seq[Sett](
       name := "scalaz-concurrent",
-      typeClasses := TypeClass.concurrent,
-      osgiExport("scalaz.concurrent"),
-      OsgiKeys.importPackage := Seq("javax.swing;resolution:=optional", "*")
+      typeClasses := TypeClass.concurrent
     ),
     dependencies = Seq(core, effect)
   )
@@ -206,8 +148,7 @@ object build extends Build {
     base = file("effect"),
     settings = standardSettings ++ Seq[Sett](
       name := "scalaz-effect",
-      typeClasses := TypeClass.effect,
-      osgiExport("scalaz.effect", "scalaz.std.effect", "scalaz.syntax.effect")
+      typeClasses := TypeClass.effect
     ),
     dependencies = Seq(core)
   )
@@ -216,8 +157,7 @@ object build extends Build {
     id = "iteratee",
     base = file("iteratee"),
     settings = standardSettings ++ Seq[Sett](
-      name := "scalaz-iteratee",
-      osgiExport("scalaz.iteratee")
+      name := "scalaz-iteratee"
     ),
     dependencies = Seq(effect)
   )
@@ -226,9 +166,7 @@ object build extends Build {
     id = "iterv",
     base = file("iterv"),
     settings = standardSettings ++ Seq[Sett](
-      name := "scalaz-iterv",
-      OsgiKeys.fragmentHost := Some("org.scalaz.core"),
-      OsgiKeys.exportPackage := Seq("scalaz;version=${Bundle-Version};-split-package:=first")
+      name := "scalaz-iterv"
     ),
     dependencies = Seq(effect)
   )
@@ -237,8 +175,7 @@ object build extends Build {
     id = "typelevel",
     base = file("typelevel"),
     settings = standardSettings ++ Seq[Sett](
-      name := "scalaz-typelevel",
-      osgiExport("scalaz.typelevel", "scalaz.syntax.typelevel")
+      name := "scalaz-typelevel"
     ),
     dependencies = Seq(core)
   )
@@ -248,8 +185,7 @@ object build extends Build {
     base = file("xml"),
     settings = standardSettings ++ Seq[Sett](
       name := "scalaz-xml",
-      typeClasses := TypeClass.xml,
-      osgiExport("scalaz.xml")
+      typeClasses := TypeClass.xml
     ),
     dependencies = Seq(core)
   )
@@ -260,7 +196,6 @@ object build extends Build {
     dependencies = Seq(core, iteratee, concurrent, typelevel, xml),
     settings = standardSettings ++ Seq[Sett](
       name := "scalaz-example",
-      previousArtifact := None,
       publishArtifact := false
     )
   )
@@ -271,8 +206,7 @@ object build extends Build {
     dependencies = Seq(core, concurrent, typelevel, xml),
     settings     = standardSettings ++ Seq[Sett](
       name := "scalaz-scalacheck-binding",
-      libraryDependencies += "org.scalacheck" %% "scalacheck" % "1.10.0",
-      osgiExport("scalaz.scalacheck")
+      libraryDependencies += "org.scalacheck" %% "scalacheck" % "1.10.0"
     )
   )
 
@@ -283,7 +217,6 @@ object build extends Build {
     settings = standardSettings ++Seq[Sett](
       name := "scalaz-tests",
       publishArtifact := false,
-      previousArtifact := None,
       libraryDependencies <++= (scalaVersion) { sv => Seq(
         "org.specs2" %% "specs2" % Dependencies.specs2(sv) % "test",
         "org.scalacheck" %% "scalacheck" % "1.10.0" % "test"
@@ -392,7 +325,6 @@ object build extends Build {
     writeFileScalazPackage("TupleOps.scala", source)
   }
 
-  def osgiExport(packs: String*) = OsgiKeys.exportPackage := packs.map(_ + ".*;version=${Bundle-Version}")
 }
 
 // vim: expandtab:ts=2:sw=2
diff --git a/project/plugins.sbt b/project/plugins.sbt
index e83215b..8901d19 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,11 +1,11 @@
-resolvers += Resolver.url("scalasbt", new URL("http://scalasbt.artifactoryonline.com/scalasbt/sbt-plugin-releases"))(Resolver.ivyStylePatterns)
+// resolvers += Resolver.url("scalasbt", new URL("http://scalasbt.artifactoryonline.com/scalasbt/sbt-plugin-releases"))(Resolver.ivyStylePatterns)
 
-addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8")
+// addSbtPlugin("com.typesafe.sbt" % "sbt-pgp" % "0.8")
 
-addSbtPlugin("com.github.gseitz" % "sbt-release" % "0.7")
+// addSbtPlugin("com.github.gseitz" % "sbt-release" % "0.7")
 
-addSbtPlugin("com.typesafe.sbtosgi" % "sbtosgi" % "0.3.0")
+// addSbtPlugin("com.typesafe.sbtosgi" % "sbtosgi" % "0.3.0")
 
-addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.2.2")
+// addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.2.2")
 
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.4")
+// addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.4")