#18765 Update to latest MiMa which is now an AutoPlugin.

* check for binary inc. issues by default
* if check is not needed, disable MimaPlugin
* determine old artifact id from the current one

akka-actor-tests/build.sbt

@@ -4,3 +4,5 @@ AkkaBuild.defaultSettings
 AkkaBuild.dontPublishSettings
 Formatting.formatSettings
 Dependencies.actorTests
+
+disablePlugins(MimaPlugin)

akka-actor/build.sbt

@@ -1,16 +1,9 @@
 import akka.{ AkkaBuild, Formatting, OSGi, Dependencies, Version }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.actor
-
 Dependencies.actor
-
+Version.versionSettings
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-actor").value
 
 enablePlugins(spray.boilerplate.BoilerplatePlugin)
-
-Version.versionSettings

akka-agent/build.sbt

@@ -1,14 +1,8 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi, ScaladocNoVerificationOfDiagrams }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.agent
-
 Dependencies.agent
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-agent").value
-
 enablePlugins(ScaladocNoVerificationOfDiagrams)

akka-bench-jmh/build.sbt

@@ -2,7 +2,7 @@ import akka._
 import com.typesafe.sbt.pgp.PgpKeys.publishSigned
 
 enablePlugins(JmhPlugin, ScaladocNoVerificationOfDiagrams)
-disablePlugins(Unidoc)
+disablePlugins(Unidoc, MimaPlugin)
 
 AkkaBuild.defaultSettings
 

akka-camel/build.sbt

@@ -1,12 +1,6 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.camel
-
 Dependencies.camel
-
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-camel").value

akka-cluster-metrics/build.sbt

@@ -1,19 +1,12 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi, MultiNodeScalaTest, SigarLoader }
 import com.typesafe.sbt.SbtMultiJvm.MultiJvmKeys._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 SigarLoader.sigarSettings
-
 OSGi.clusterMetrics
-
 Dependencies.clusterMetrics
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-cluster-metrics").value
-
 parallelExecution in Test := false
 
 enablePlugins(MultiNodeScalaTest)

akka-cluster-sharding/build.sbt

@@ -1,14 +1,8 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, MultiNode, ScaladocNoVerificationOfDiagrams, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.clusterSharding
-
 Dependencies.clusterSharding
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-cluster-sharding").value
-
 enablePlugins(MultiNode, ScaladocNoVerificationOfDiagrams)

akka-cluster-tools/build.sbt

@@ -1,14 +1,8 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, MultiNode, ScaladocNoVerificationOfDiagrams, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.clusterTools
-
 Dependencies.clusterTools
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-cluster-tools").value
-
 enablePlugins(MultiNode, ScaladocNoVerificationOfDiagrams)

akka-cluster/build.sbt

@@ -1,17 +1,11 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi, MultiNodeScalaTest }
 import com.typesafe.sbt.SbtMultiJvm.MultiJvmKeys._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.cluster
-
 Dependencies.cluster
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-cluster").value
-
 // disable parallel tests
 parallelExecution in Test := false
 

akka-contrib/build.sbt

@@ -1,12 +1,8 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi, MultiNode, ScaladocNoVerificationOfDiagrams }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.contrib
-
 Dependencies.contrib
 
 description := """|
@@ -21,3 +17,4 @@ description := """|
                   |""".stripMargin
 
 enablePlugins(MultiNode, ScaladocNoVerificationOfDiagrams)
+disablePlugins(MimaPlugin)

akka-distributed-data/build.sbt

@@ -1,16 +1,9 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, MultiNode, Unidoc, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 AkkaBuild.experimentalSettings
-
 Formatting.formatSettings
-
 OSGi.distributedData
-
 Dependencies.distributedData
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-distributed-data-experimental").value
-
 enablePlugins(MultiNodeScalaTest)

akka-docs/build.sbt

@@ -3,28 +3,21 @@ import akka.ValidatePullRequest._
 import com.typesafe.sbt.SbtScalariform.ScalariformKeys
 import com.typesafe.sbt.SbtSite.site
 import com.typesafe.sbt.site.SphinxSupport._
-import com.typesafe.tools.mima.plugin.MimaKeys
-
-enablePlugins(ScaladocNoVerificationOfDiagrams)
 
 AkkaBuild.defaultSettings
-
+AkkaBuild.dontPublishSettings
 Formatting.docFormatSettings
+Dependencies.docs
 
 site.settings
-
 site.sphinxSupport()
-
 site.publishSite
 
 SphinxDoc.sphinxPreprocessing
-
 SphinxDoc.docsSettings
 
-Dependencies.docs
-
 unmanagedSourceDirectories in ScalariformKeys.format in Test <<= unmanagedSourceDirectories in Test
-
 additionalTasks in ValidatePR += generate in Sphinx
 
-AkkaBuild.dontPublishSettings
+enablePlugins(ScaladocNoVerificationOfDiagrams)
+disablePlugins(MimaPlugin)

akka-http-core/build.sbt

@@ -1,8 +1,6 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 Formatting.formatSettings
 OSGi.httpCore
 Dependencies.httpCore
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-http-core").value

akka-http-marshallers-java/akka-http-jackson/build.sbt

@@ -1,11 +1,9 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 AkkaBuild.experimentalSettings
 Formatting.formatSettings
 OSGi.httpJackson
 Dependencies.httpJackson
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-http-jackson").value
 
 enablePlugins(ScaladocNoVerificationOfDiagrams)

akka-http-marshallers-scala/akka-http-spray-json/build.sbt

@@ -1,9 +1,7 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 AkkaBuild.experimentalSettings
 Formatting.formatSettings
 OSGi.httpSprayJson
 Dependencies.httpSprayJson
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-http-spray-json").value

akka-http-marshallers-scala/akka-http-xml/build.sbt

@@ -1,9 +1,7 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 AkkaBuild.experimentalSettings
 Formatting.formatSettings
 OSGi.httpXml
 Dependencies.httpXml
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-http-xml").value

akka-http-testkit/build.sbt

@@ -1,10 +1,8 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 Formatting.formatSettings
 OSGi.httpTestkit
 Dependencies.httpTestkit
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-http-testkit").value
 
 scalacOptions in Compile  += "-language:postfixOps"

akka-http-tests/build.sbt

@@ -10,3 +10,5 @@ testOptions += Tests.Argument(TestFrameworks.JUnit, "--ignore-runners=")
 
 scalacOptions in Compile  += "-language:_"
 mainClass in run in Test := Some("akka.http.javadsl.SimpleServerApp")
+
+disablePlugins(MimaPlugin)

akka-http/build.sbt

@@ -1,11 +1,10 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 AkkaBuild.experimentalSettings
 Formatting.formatSettings
 OSGi.http
 Dependencies.http
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-http").value
+
 enablePlugins(spray.boilerplate.BoilerplatePlugin)
 scalacOptions in Compile += "-language:_"

akka-kernel/build.sbt

@@ -1,12 +1,7 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, ScaladocNoVerificationOfDiagrams }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 Dependencies.kernel
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-kernel").value
-
 enablePlugins(ScaladocNoVerificationOfDiagrams)

akka-multi-node-testkit/build.sbt

@@ -1,8 +1,4 @@
-import akka.{AkkaBuild, Formatting, OSGi}
+import akka.{AkkaBuild, Formatting}
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-multi-node-testkit").value

akka-osgi/build.sbt

@@ -1,14 +1,8 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.osgi
-
 Dependencies.osgi
 
 parallelExecution in Test := false
-
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-osgi").value

akka-parsing/build.sbt

@@ -1,5 +1,4 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 Formatting.docFormatSettings
@@ -14,3 +13,4 @@ scalacOptions += "-language:_"
 sources in doc in Compile := List()
 
 enablePlugins(ScaladocNoVerificationOfDiagrams)
+disablePlugins(MimaPlugin)

akka-persistence-query/build.sbt

@@ -1,18 +1,11 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, ScaladocNoVerificationOfDiagrams, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 AkkaBuild.experimentalSettings
-
 Formatting.formatSettings
-
 OSGi.persistenceQuery
-
 Dependencies.persistenceQuery
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-persistence-query-experimental").value
+fork in Test := true
 
 enablePlugins(ScaladocNoVerificationOfDiagrams)
-
-fork in Test := true

akka-persistence-shared/build.sbt

@@ -6,3 +6,5 @@ Formatting.formatSettings
 Dependencies.persistenceShared
 
 fork in Test := true
+
+disablePlugins(MimaPlugin)

akka-persistence-tck/build.sbt

@@ -1,12 +1,10 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 // OSGi.persistenceTck TODO: we do need to export this as OSGi bundle too?
-
 Dependencies.persistenceTck
 
 fork in Test := true
+
+disablePlugins(MimaPlugin)

akka-persistence/build.sbt

@@ -1,14 +1,8 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.persistence
-
 Dependencies.persistence
 
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-persistence").value
-
 fork in Test := true

akka-protobuf/build.sbt

@@ -1,11 +1,8 @@
 import akka.{ AkkaBuild, Formatting, OSGi, Unidoc, Dependencies }
 
-import com.typesafe.tools.mima.plugin.MimaKeys
-
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
+OSGi.protobuf
 
 enablePlugins(ScaladocNoVerificationOfDiagrams)
-
+disablePlugins(MimaPlugin)
-OSGi.protobuf

akka-remote-tests/build.sbt

@@ -1,18 +1,14 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, MultiNodeScalaTest, Unidoc }
 import com.typesafe.sbt.SbtMultiJvm.MultiJvmKeys._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
+AkkaBuild.dontPublishSettings
 Formatting.formatSettings
-
 Dependencies.remoteTests
 
 // disable parallel tests
 parallelExecution in Test := false
-
 publishArtifact in Compile := false
 
 enablePlugins(MultiNodeScalaTest)
-
+disablePlugins(MimaPlugin)
-AkkaBuild.dontPublishSettings

akka-remote/build.sbt

@@ -1,14 +1,8 @@
 import akka.{AkkaBuild, Dependencies, Formatting, OSGi}
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.remote
-
 Dependencies.remote
 
 parallelExecution in Test := false
-
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-remote").value

akka-slf4j/build.sbt

@@ -1,12 +1,6 @@
 import akka.{ AkkaBuild, Dependencies, Formatting, OSGi }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.slf4j
-
 Dependencies.slf4j
-
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-slf4j").value

akka-stream-testkit/build.sbt

@@ -1,8 +1,6 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 Formatting.formatSettings
 OSGi.streamTestkit
 Dependencies.streamTestkit
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-stream-testkit").value

akka-stream-tests-tck/build.sbt

@@ -4,3 +4,5 @@ AkkaBuild.defaultSettings
 AkkaBuild.dontPublishSettings
 Formatting.formatSettings
 Dependencies.streamTestsTck
+
+disablePlugins(MimaPlugin)

akka-stream-tests/build.sbt

@@ -4,3 +4,5 @@ AkkaBuild.defaultSettings
 AkkaBuild.dontPublishSettings
 Formatting.formatSettings
 Dependencies.streamTests
+
+disablePlugins(MimaPlugin)

akka-stream/build.sbt

@@ -1,9 +1,8 @@
 import akka._
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 Formatting.formatSettings
 OSGi.stream
 Dependencies.stream
-MimaKeys.previousArtifacts := akkaStreamAndHttpPreviousArtifacts("akka-stream").value
+
-enablePlugins(spray.boilerplate.BoilerplatePlugin)
+enablePlugins(spray.boilerplate.BoilerplatePlugin)

akka-testkit/build.sbt

@@ -1,15 +1,8 @@
 import akka.{ AkkaBuild, Formatting, OSGi, Dependencies }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
-
 Formatting.formatSettings
-
 OSGi.testkit
-
+Dependencies.testkit // to fix scaladoc generation
-// to fix scaladoc generation
-Dependencies.testkit
 
 initialCommands += "import akka.testkit._"
-
-MimaKeys.previousArtifacts := akkaPreviousArtifacts("akka-testkit").value

akka-typed/build.sbt

@@ -1,6 +1,7 @@
-import akka.{ AkkaBuild, Formatting, OSGi, Dependencies }
+import akka.{ AkkaBuild, Formatting }
-import com.typesafe.tools.mima.plugin.MimaKeys
 
 AkkaBuild.defaultSettings
 AkkaBuild.experimentalSettings
 Formatting.formatSettings
+
+disablePlugins(MimaPlugin)

build.sbt

@@ -1 +1,2 @@
 enablePlugins(akka.UnidocRoot, akka.TimeStampede, akka.UnidocWithPrValidation)
+disablePlugins(MimaPlugin)

project/AkkaBuild.scala

@@ -13,6 +13,7 @@ import com.typesafe.sbt.S3Plugin.S3
 import com.typesafe.sbt.S3Plugin.s3Settings
 import com.typesafe.sbt.pgp.PgpKeys.publishSigned
 import com.typesafe.sbt.SbtMultiJvm.MultiJvmKeys.MultiJvm
+import com.typesafe.tools.mima.plugin.MimaPlugin
 import sbt.Keys._
 import sbt._
 import sbtunidoc.Plugin.ScalaUnidoc
@@ -50,7 +51,7 @@ object AkkaBuild extends Build {
         archivesPathFinder.get.map(file => (file -> ("akka/" + file.getName)))
       }
     )
-  
+
   lazy val root = Project(
     id = "akka",
     base = file("."),
@@ -60,7 +61,7 @@ object AkkaBuild extends Build {
       kernel, osgi, docs, contrib, samples, multiNodeTestkit, benchJmh, typed, protobuf,
       stream, streamTestkit, streamTests, streamTestsTck, parsing,
       httpCore, http, httpSprayJson, httpXml, httpJackson, httpTests, httpTestkit
-    ) 
+    )
   ).settings(rootSettings: _*)
 
   lazy val akkaScalaNightly = Project(
@@ -75,7 +76,7 @@ object AkkaBuild extends Build {
       stream, streamTestkit, streamTests, streamTestsTck, parsing,
       httpCore, http, httpSprayJson, httpXml, httpJackson, httpTests, httpTestkit
     )
-  ).disablePlugins(ValidatePullRequest)
+  ).disablePlugins(ValidatePullRequest, MimaPlugin)
 
   lazy val actor = Project(
     id = "akka-actor",
@@ -341,16 +342,18 @@ object AkkaBuild extends Build {
   lazy val samplesSettings = parentSettings ++ ActivatorDist.settings
 
   lazy val samples = Project(
-    id = "akka-samples",
+      id = "akka-samples",
-    base = file("akka-samples"),
+      base = file("akka-samples"),
-    // FIXME osgiDiningHakkersSampleMavenTest temporarily removed from aggregate due to #16703
+      // FIXME osgiDiningHakkersSampleMavenTest temporarily removed from aggregate due to #16703
-    aggregate = if (!Sample.CliOptions.aggregateSamples) Nil else
+      aggregate = if (!Sample.CliOptions.aggregateSamples) Nil else
-      Seq(sampleCamelJava, sampleCamelScala, sampleClusterJava, sampleClusterScala, sampleFsmScala, sampleFsmJavaLambda,
+        Seq(sampleCamelJava, sampleCamelScala, sampleClusterJava, sampleClusterScala, sampleFsmScala, sampleFsmJavaLambda,
-        sampleMainJava, sampleMainScala, sampleMainJavaLambda, sampleMultiNodeScala,
+          sampleMainJava, sampleMainScala, sampleMainJavaLambda, sampleMultiNodeScala,
-        samplePersistenceJava, samplePersistenceScala, samplePersistenceJavaLambda,
+          samplePersistenceJava, samplePersistenceScala, samplePersistenceJavaLambda,
-        sampleRemoteJava, sampleRemoteScala, sampleSupervisionJavaLambda,
+          sampleRemoteJava, sampleRemoteScala, sampleSupervisionJavaLambda,
-        sampleDistributedDataScala, sampleDistributedDataJava)
+          sampleDistributedDataScala, sampleDistributedDataJava)
-  ).settings(samplesSettings: _*)
+    )
+    .settings(samplesSettings: _*)
+    .disablePlugins(MimaPlugin)
 
   lazy val sampleCamelJava = Sample.project("akka-sample-camel-java")
   lazy val sampleCamelScala = Sample.project("akka-sample-camel-scala")
@@ -529,36 +532,6 @@ object AkkaBuild extends Build {
      javacOptions in doc ++= Seq("-Xdoclint:none")
    )
 
-  def akkaPreviousArtifacts(id: String): Def.Initialize[Set[sbt.ModuleID]] = Def.setting {
-    if (enableMiMa) {
-      val versions = {
-        val akka23Versions = Seq("2.3.11", "2.3.12", "2.3.13", "2.3.14")
-        val akka24Versions = Seq("2.4.0", "2.4.1")
-        val akka24NewArtifacts = Seq(
-          "akka-cluster-sharding",
-          "akka-cluster-tools",
-          "akka-cluster-metrics",
-          "akka-persistence",
-          "akka-distributed-data-experimental",
-          "akka-persistence-query-experimental"
-        )
-        scalaBinaryVersion.value match {
-          case "2.11" if !akka24NewArtifacts.contains(id) => akka23Versions ++ akka24Versions
-          case _ => akka24Versions // Only Akka 2.4.x for scala > than 2.11
-        }
-      }
-
-      // check against all binary compatible artifacts
-      versions.map(organization.value %% id % _).toSet
-    }
-    else Set.empty
-  }
-
-  def akkaStreamAndHttpPreviousArtifacts(id: String): Def.Initialize[Set[sbt.ModuleID]] = Def.setting {
-    // TODO fix MiMa for 2.4 Akka streams
-    Set.empty
-  }
-
   def loadSystemProperties(fileName: String): Unit = {
     import scala.collection.JavaConverters._
     val file = new File(fileName)

project/MiMa.scala

@@ -3,19 +3,55 @@
  */
 package akka
 
-import com.typesafe.tools.mima.plugin.MimaKeys.{bbcIssueFilters, previousArtifacts}
-import com.typesafe.tools.mima.plugin.MimaPlugin.mimaDefaultSettings
 import sbt._
+import sbt.Keys._
+import com.typesafe.tools.mima.plugin.MimaPlugin
+import com.typesafe.tools.mima.plugin.MimaPlugin.autoImport._
 
 object MiMa extends AutoPlugin {
 
+  override def requires = MimaPlugin
   override def trigger = allRequirements
 
-  override val projectSettings = mimaDefaultSettings ++ Seq(
+  override val projectSettings = Seq(
-    previousArtifacts := Set.empty,
+    mimaBackwardIssueFilters ++= mimaIgnoredProblems,
-    bbcIssueFilters ++= mimaIgnoredProblems
+    mimaPreviousArtifacts := akkaPreviousArtifacts(name.value, organization.value, scalaBinaryVersion.value)
   )
 
+  def akkaPreviousArtifacts(projectName: String, organization: String, scalaBinaryVersion: String): Set[sbt.ModuleID] = {
+    val versions = {
+      val akka23Versions = Seq("2.3.11", "2.3.12", "2.3.13", "2.3.14")
+      val akka24NoStreamVersions = Seq("2.4.0", "2.4.1")
+      val akka24StreamVersions = Seq("2.4.2")
+      val akka24NewArtifacts = Seq(
+        "akka-cluster-sharding",
+        "akka-cluster-tools",
+        "akka-cluster-metrics",
+        "akka-persistence",
+        "akka-distributed-data-experimental",
+        "akka-persistence-query-experimental"
+      )
+      val akka242NewArtifacts = Seq(
+        "akka-stream",
+        "akka-stream-testkit",
+        "akka-http-core",
+        "akka-http-experimental",
+        "akka-http-testkit",
+        "akka-http-jackson-experimental",
+        "akka-http-spray-json-experimental",
+        "akka-http-xml-experimental"
+      )
+      scalaBinaryVersion match {
+        case "2.11" if !(akka24NewArtifacts ++ akka242NewArtifacts).contains(projectName) => akka23Versions ++ akka24NoStreamVersions ++ akka24StreamVersions
+        case _ if akka242NewArtifacts.contains(projectName) => akka24StreamVersions
+        case _ => akka24NoStreamVersions ++ akka24StreamVersions // Only Akka 2.4.x for scala > than 2.11
+      }
+    }
+
+    // check against all binary compatible artifacts
+    versions.map(organization %% projectName % _).toSet
+  }
+
   case class FilterAnyProblem(name: String) extends com.typesafe.tools.mima.core.ProblemFilter {
     import com.typesafe.tools.mima.core._
     override def apply(p: Problem): Boolean = p match {
@@ -565,8 +601,7 @@ object MiMa extends AutoPlugin {
 
     Map(
       "2.3.11" -> Seq(
-        ProblemFilters.exclude[MissingMethodProblem]("akka.actor.ActorCell.clearActorFields"), // #17805, incompatibility with 2.4.x fixed in 2.3.12
+        ProblemFilters.exclude[MissingMethodProblem]("akka.actor.ActorCell.clearActorFields") // #17805, incompatibility with 2.4.x fixed in 2.3.12
-        ProblemFilters.exclude[MissingMethodProblem]("akka.japi.Pair.toString") // reported on PR validation machine which uses Java 1.8.0_45
       ),
       "2.3.14" -> bcIssuesBetween23and24,
       "2.4.0" -> Seq(
@@ -608,6 +643,34 @@ object MiMa extends AutoPlugin {
         // #19440
         ProblemFilters.exclude[MissingMethodProblem]("akka.pattern.PipeToSupport.pipeCompletionStage"),
         ProblemFilters.exclude[MissingMethodProblem]("akka.pattern.FutureTimeoutSupport.afterCompletionStage")
+      ),
+      "2.4.2" -> Seq(
+        FilterAnyProblemStartingWith("akka.stream.impl.VirtualProcessor"),
+        ProblemFilters.exclude[MissingClassProblem]("akka.stream.impl.Stages$Drop"),
+        ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.stream.impl.MaterializerSession.assignPort"),
+        ProblemFilters.exclude[MissingClassProblem]("akka.stream.impl.Stages$Drop$"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.impl.FanIn#InputBunch.dequeuePrefering"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.impl.fusing.Fusing#BuildStructuralInfo.registerInteral"),
+        ProblemFilters.exclude[MissingTypesProblem]("akka.stream.impl.fusing.Drop"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.impl.fusing.Drop.onPush"),
+        ProblemFilters.exclude[FinalClassProblem]("akka.stream.stage.GraphStageLogic$Reading"), // this class is private
+
+        // #19815 make HTTP compile under Scala 2.12.0-M3
+        ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.http.scaladsl.model.headers.CacheDirectives#private.apply"),
+        ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.http.scaladsl.model.headers.CacheDirectives#no-cache.apply"),
+
+        ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.http.impl.model.parser.SimpleHeaders.strict-transport-security"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.http.impl.engine.rendering.RequestRenderingContext.copy"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.http.impl.engine.rendering.RequestRenderingContext.this"),
+        ProblemFilters.exclude[MissingTypesProblem]("akka.http.impl.engine.rendering.RequestRenderingContext$"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.http.impl.engine.rendering.RequestRenderingContext.apply"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.http.impl.engine.parsing.HttpResponseParser.setRequestMethodForNextResponse"),
+        ProblemFilters.exclude[DirectMissingMethodProblem]("akka.http.impl.util.package.errorHandling"),
+
+        // #19983 withoutSizeLimit overrides for Scala API
+        ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.http.scaladsl.model.RequestEntity.withoutSizeLimit"),
+        ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.http.scaladsl.model.UniversalEntity.withoutSizeLimit"),
+        ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.http.scaladsl.model.ResponseEntity.withoutSizeLimit")
       )
     )
   }

project/Sample.scala

@@ -76,7 +76,6 @@ object Sample {
    */
   private val enableAutoPlugins = (project: Project) =>
     project.settings((
-      MiMa.projectSettings ++
       Publish.projectSettings ++
       ValidatePullRequest.projectSettings
     ): _*).configs(ValidatePullRequest.ValidatePR)

project/ValidatePullRequest.scala

@@ -4,6 +4,7 @@
 package akka
 
 import com.typesafe.tools.mima.plugin.MimaKeys.reportBinaryIssues
+import com.typesafe.tools.mima.plugin.MimaPlugin
 import net.virtualvoid.sbt.graph.backend.SbtUpdateReport
 import net.virtualvoid.sbt.graph.DependencyGraphKeys._
 import net.virtualvoid.sbt.graph.ModuleGraph
@@ -245,10 +246,7 @@ object ValidatePullRequest extends AutoPlugin {
       } apply { tasks: Seq[Task[Any]] =>
         tasks.join map { seq => () /* Ignore the sequence of unit returned */ }
       }
-    }.value,
+    }.value
-
-    // add reportBinaryIssues to validatePullRequest on minor version maintenance branch
-    validatePullRequest <<= validatePullRequest.dependsOn(reportBinaryIssues)
   )
 }
 
@@ -271,6 +269,20 @@ object MultiNodeWithPrValidation extends AutoPlugin {
   )
 }
 
+/**
+ * This autoplugin adds MiMa binary issue reporting to validatePullRequest task,
+ * when a project has MimaPlugin autoplugin enabled.
+ */
+object MimaWithPrValidation extends AutoPlugin {
+  import ValidatePullRequest._
+
+  override def trigger = allRequirements
+  override def requires = ValidatePullRequest && MimaPlugin
+  override lazy val projectSettings = Seq(
+    additionalTasks in ValidatePR += reportBinaryIssues
+  )
+}
+
 object UnidocWithPrValidation extends AutoPlugin {
   import ValidatePullRequest._
 

project/plugins.sbt

@@ -17,8 +17,7 @@ addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "0.7.1")
 
 addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.6.0")
 
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.7-32-g3bebac4")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.9")
-resolvers += Resolver.url("2m-sbt-plugins", url("https://dl.bintray.com/2m/sbt-plugins/"))(Resolver.ivyStylePatterns)
 
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.0")