diff --git a/.appveyor.yml b/.appveyor.yml
deleted file mode 100644
index a58675259..000000000
--- a/.appveyor.yml
+++ /dev/null
@@ -1,162 +0,0 @@
-image:
-  - MacOS
-  - Visual Studio 2015
-  - Visual Studio 2019
-  - Ubuntu
-
-build: off
-
-init:
-  - git config --global core.autocrlf input
-
-for:
--
-  matrix:
-    only:
-      - image: Ubuntu
-
-  branches:
-    only:
-      - build-graal
-  artifacts:
-  - path: client/target/bin/sbtn
-    name: sbtn
-
-  install:
-  - curl -sL https://github.com/sbt/sbt/releases/download/v1.3.10/sbt-1.3.10.tgz > ~/sbt-bin.tgz
-  - mkdir ~/sbt
-  - tar -xf ~/sbt-bin.tgz --directory ~/sbt
-  - curl -sL https://raw.githubusercontent.com/shyiko/jabba/0.11.0/install.sh | bash && . ~/.jabba/jabba.sh
-  - jabba install adopt@1.8.0-275
-  - jabba use adopt@1.8.0-275
-  - curl -sL https://github.com/graalvm/graalvm-ce-builds/releases/download/vm-20.1.0/graalvm-ce-java8-linux-amd64-20.1.0.tar.gz > graalvm.tar.gz
-  - tar -xf graalvm.tar.gz
-  - export PATH="~/sbt/sbt/bin:$PATH"
-  - export PATH="$PATH:~/.jabba/jdk/adopt@1.8.0-275/bin"
-  - export JAVA_HOME="~/.jabba/jdk/adopt@1.8.0-275"
-
-  test_script:
-    - export PATH="$PATH:~/.jabba/jdk/adopt@1.8.0-275/bin"
-    - export PATH="$PATH:graalvm-ce-java8-20.1.0/bin"
-    - gu install native-image
-    - sbt "-Dsbt.io.virtual=false" "-Dsbt.native-image=$(pwd)/graalvm-ce-java8-20.1.0/bin/native-image" "sbtClientProj/buildNativeThinClient"
-
--
-  matrix:
-    only:
-      - image: MacOS
-
-  branches:
-    only:
-      - build-graal
-  artifacts:
-  - path: client/target/bin/sbtn
-    name: mac-native-sbt-client
-
-  install:
-  - curl -sL https://github.com/sbt/sbt/releases/download/v1.3.10/sbt-1.3.10.tgz > ~/sbt-bin.tgz
-  - mkdir ~/sbt
-  - tar -xf ~/sbt-bin.tgz --directory ~/sbt
-  - curl -sL https://raw.githubusercontent.com/shyiko/jabba/0.11.0/install.sh | bash && . ~/.jabba/jabba.sh
-  - jabba install adopt@1.8.0-222
-  - jabba use adopt@1.8.0-222
-  - curl -sL https://github.com/graalvm/graalvm-ce-builds/releases/download/vm-20.1.0/graalvm-ce-java8-darwin-amd64-20.1.0.tar.gz > graalvm.tar.gz
-  - tar -xf graalvm.tar.gz
-  - export PATH="~/sbt/sbt/bin:$PATH"
-  - export PATH="$PATH:~/.jabba/jdk/adopt@1.8.0-222/bin"
-  - export JAVA_HOME="~/.jabba/jdk/adopt@1.8.0-222"
-
-  test_script:
-    - export PATH="$PATH:~/.jabba/jdk/adopt@1.8.0-222/Contents/Home/bin"
-    - export PATH="$PATH:graalvm-ce-java8-20.1.0/Contents/Home/bin"
-    - gu install native-image
-    - sbt "-Dsbt.io.virtual=false" "-Dsbt.native-image=$(pwd)/graalvm-ce-java8-20.1.0/Contents/Home/bin/native-image" "sbtClientProj/buildNativeThinClient"
-
--
-  matrix:
-    only:
-      - image: Visual Studio 2015
-  branches:
-    only:
-      - build-graal
-
-  artifacts:
-  - path: client\target\bin\sbtn.exe
-    name: sbtn.exe
-  install:
-    - cinst adoptopenjdk8 -params 'installdir=C:\\jdk8'
-    - SET CI=true
-      #- choco install windows-sdk-7.1 kb2519277
-    - call "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd"
-
-    - ps: |
-        Add-Type -AssemblyName System.IO.Compression.FileSystem
-        if (!(Test-Path -Path "C:\sbt" )) {
-          (new-object System.Net.WebClient).DownloadFile(
-            'https://github.com/sbt/sbt/releases/download/v1.3.10/sbt-1.3.10.zip',
-            'C:\sbt-bin.zip'
-          )
-          [System.IO.Compression.ZipFile]::ExtractToDirectory("C:\sbt-bin.zip", "C:\sbt")
-        }
-        if (!(Test-Path -Path "C:\graalvm-ce-java8-20.2.0-dev" )) {
-          (new-object System.Net.WebClient).DownloadFile(
-            'https://github.com/graalvm/graalvm-ce-builds/releases/download/vm-20.1.0/graalvm-ce-java8-windows-amd64-20.1.0.zip',
-            'C:\graalvm-ce-java8-20.1.0.zip'
-          )
-          [System.IO.Compression.ZipFile]::ExtractToDirectory("C:\graalvm-ce-java8-20.1.0.zip", "C:\")
-        }
-        if (!(Test-Path -Path "C:\zulu-jdk7" )) {
-          (new-object System.Net.WebClient).DownloadFile(
-            'https://cdn.azul.com/zulu/bin/zulu7.38.0.11-ca-jdk7.0.262-win_x64.zip',
-            'C:\zulu-jdk7.zip'
-          )
-          [System.IO.Compression.ZipFile]::ExtractToDirectory("C:\zulu-jdk7.zip", "C:\")
-        }
-    - SET PATH=C:\graalvm-ce-java8-20.1.0\bin;%PATH%
-    - SET PATH=C:\sbt\sbt\bin;%PATH%
-    - SET JAVA_HOME=C:\jdk8
-    - gu install native-image
-    - rm .sbtopts
-
-  cache:
-    - '%USERPROFILE%\.ivy2\cache'
-    - '%LOCALAPPDATA%\Coursier\Cache\v1'
-    - '%USERPROFILE%\.sbt'
-
-  test_script:
-    - sbt "-Dsbt.io.virtual=false" "-Dsbt.native-image=C:\graalvm-ce-java8-20.1.0\bin\native-image.cmd" "sbtClientProj/buildNativeThinClient"
--
-  matrix:
-    only:
-      - image: Visual Studio 2019
-  branches:
-    except:
-      - build-graal
-  install:
-    - cinst adoptopenjdk8 -params 'installdir=C:\\jdk8'
-    - SET JAVA_HOME=C:\jdk8
-    - SET PATH=C:\jdk8\bin;%PATH%
-    - SET CI=true
-
-    - ps: |
-        Add-Type -AssemblyName System.IO.Compression.FileSystem
-        if (!(Test-Path -Path "C:\sbt" )) {
-          (new-object System.Net.WebClient).DownloadFile(
-            'https://github.com/sbt/sbt/releases/download/v1.3.10/sbt-1.3.10.zip',
-            'C:\sbt-bin.zip'
-          )
-          [System.IO.Compression.ZipFile]::ExtractToDirectory("C:\sbt-bin.zip", "C:\sbt")
-        }
-    - SET PATH=C:\sbt\sbt\bin;%PATH%
-    - SET SBT_OPTS=-Xmx4g -Dsbt.supershell=never -Dfile.encoding=UTF8
-    - rm .sbtopts
-
-  cache:
-    - '%USERPROFILE%\.ivy2\cache'
-    - '%LOCALAPPDATA%\Coursier\Cache\v1'
-    - '%USERPROFILE%\.sbt'
-
-  test_script:
-    # The server tests often fail in CI when run together so just run a single test to ensure
-    # that the thin client works on windows
-    - sbt "-Dsbt.io.virtual=false" "scripted actions/* reporter/source-mapper classloader-cache/* nio/* watch/*" "serverTestProj/testOnly testpkg.ClientTest"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4a9f6e365..b4c2e80db 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
             java: 8
             distribution: adopt
             jobtype: 8
-          - os: windows-latest
+          - os: windows-2019
             java: 8
             distribution: adopt
             jobtype: 9
@@ -95,6 +95,9 @@ jobs:
       with:
         path: ~/.sbt
         key: ${{ runner.os }}-sbt-cache-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
+    - name: Setup Windows C++ toolchain
+      uses: ilammy/msvc-dev-cmd@v1
+      if: ${{ matrix.os == 'windows-2019' }}
     - name: Build and test (1)
       if: ${{ matrix.jobtype == 1 }}
       shell: bash
@@ -107,7 +110,6 @@ jobs:
         ./sbt -v --client serverTestProj/scalafmtCheckAll
         ./sbt -v --client headerCheck
         ./sbt -v --client "Test/headerCheck"
-        ./sbt -v --client whitesourceOnPush
         ./sbt -v --client "Test/compile"
         ./sbt -v --client publishLocal
         ./sbt -v --client test
@@ -152,6 +154,8 @@ jobs:
       if: ${{ matrix.jobtype == 7 }}
       shell: bash
       run: |
+        # test building sbtn on Linux
+        sbt "-Dsbt.io.virtual=false" nativeImage
         # test launcher script
         echo build using JDK 8 test using JDK 8 and JDK 11
         cd launcher-package
@@ -165,6 +169,8 @@ jobs:
       if: ${{ matrix.jobtype == 8 }}
       shell: bash
       run: |
+        # test building sbtn on macOS
+        sbt "-Dsbt.io.virtual=false" nativeImage
         # test launcher script
         echo build using JDK 8, test using JDK 8, on macOS
         cd launcher-package
@@ -175,6 +181,8 @@ jobs:
       if: ${{ matrix.jobtype == 9 }}
       shell: bash
       run: |
+        # test building sbtn on Windows
+        sbt "-Dsbt.io.virtual=false" nativeImage
         # test launcher script
         echo build using JDK 8, test using JDK 8, on Windows
         cd launcher-package
diff --git a/.github/workflows/dependency-graph.yml b/.github/workflows/dependency-graph.yml
new file mode 100644
index 000000000..7caea8278
--- /dev/null
+++ b/.github/workflows/dependency-graph.yml
@@ -0,0 +1,12 @@
+# .github/workflows/dependency-graph.yml
+name: Submit Dependency Graph
+on:
+  push:
+    branches: [1.7.x] # default branch of the project
+jobs:
+  submit-graph:
+    name: Submit Dependency Graph
+    runs-on: ubuntu-latest # or windows-latest, or macOS-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: scalacenter/sbt-dependency-submission@v2
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 4d98a29d8..2897d641f 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -1,8 +1,9 @@
 name: Nightly
 on:
-  schedule:
-    # 08:00 UTC = 03:00 EST
-    - cron:  '0 8 * * *'
+  workflow_dispatch:
+#  schedule:
+#    # 08:00 UTC = 03:00 EST
+#    - cron:  '0 8 * * *'
 
 jobs:
   deploy:
diff --git a/README.md b/README.md
index 990d6c676..b169ba27d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 [![CI](https://github.com/sbt/sbt/actions/workflows/ci.yml/badge.svg)](https://github.com/sbt/sbt/actions/workflows/ci.yml)
 [![Latest version](https://img.shields.io/github/tag/sbt/sbt.svg)](https://index.scala-lang.org/sbt/sbt)
-[![Gitter Chat](https://badges.gitter.im/sbt/sbt.svg)](https://gitter.im/sbt/sbt)
+[![Discord](https://img.shields.io/discord/632150470000902164?label=Discord%20%23sbt)](https://discord.com/channels/632150470000902164/922600050989875282)
 
   [sbt/sbt-zero-seven]: https://github.com/sbt/sbt-zero-seven
   [CONTRIBUTING]: CONTRIBUTING.md
diff --git a/build.sbt b/build.sbt
index 3168ba1dd..8ffea7edc 100644
--- a/build.sbt
+++ b/build.sbt
@@ -10,7 +10,7 @@ import scala.util.Try
 // ThisBuild settings take lower precedence,
 // but can be shared across the multi projects.
 ThisBuild / version := {
-  val v = "1.7.0-SNAPSHOT"
+  val v = "1.7.2-SNAPSHOT"
   nightlyVersion.getOrElse(v)
 }
 ThisBuild / version2_13 := "2.0.0-SNAPSHOT"
@@ -50,7 +50,6 @@ Global / semanticdbVersion := "4.5.9"
 val excludeLint = SettingKey[Set[Def.KeyedInitialize[_]]]("excludeLintKeys")
 Global / excludeLint := (Global / excludeLint).?.value.getOrElse(Set.empty)
 Global / excludeLint += componentID
-Global / excludeLint += whitesourceIgnoredScopes
 Global / excludeLint += scriptedBufferLog
 Global / excludeLint += checkPluginCross
 
@@ -129,6 +128,8 @@ val sbt13Plus =
     "1.3.0",
     "1.4.0",
     "1.5.0",
+    "1.6.0",
+    "1.7.0",
   )
 val sbt10Plus =
   Seq(
@@ -211,7 +212,7 @@ lazy val sbtRoot: Project = (project in file("."))
     mimaSettings,
     mimaPreviousArtifacts := Set.empty,
     buildThinClient := (sbtClientProj / buildThinClient).evaluated,
-    buildNativeThinClient := (sbtClientProj / buildNativeThinClient).value,
+    nativeImage := (sbtClientProj / nativeImage).value,
     installNativeThinClient := {
       // nativeInstallDirectory can be set globally or in a gitignored local file
       val dir = nativeInstallDirectory.?.value
@@ -226,7 +227,7 @@ lazy val sbtRoot: Project = (project in file("."))
           }
       }
       val base = baseDirectory.value.toPath
-      val exec = (sbtClientProj / buildNativeThinClient).value
+      val exec = (sbtClientProj / nativeImage).value.toPath
       streams.value.log.info(s"installing thin client ${base.relativize(exec)} to ${target}")
       Files.copy(exec, target, java.nio.file.StandardCopyOption.REPLACE_EXISTING)
     }
@@ -246,6 +247,7 @@ lazy val bundledLauncherProj =
       description := "sbt application launcher",
       autoScalaLibrary := false,
       crossPaths := false,
+      Compile / doc / javacOptions := Nil,
       Compile / packageBin := sbtLaunchJar.value,
       mimaSettings,
       mimaPreviousArtifacts := Set()
@@ -340,6 +342,7 @@ lazy val utilInterface = (project in file("internal") / "util-interface").settin
   javaOnlySettings,
   crossPaths := false,
   autoScalaLibrary := false,
+  Compile / doc / javacOptions := Nil,
   name := "Util Interface",
   exportJars := true,
   utilMimaSettings,
@@ -532,6 +535,7 @@ lazy val testAgentProj = (project in file("testing") / "agent")
     crossScalaVersions := Seq(baseScalaVersion),
     crossPaths := false,
     autoScalaLibrary := false,
+    Compile / doc / javacOptions := Nil,
     name := "Test Agent",
     libraryDependencies += testInterface,
     mimaSettings,
@@ -618,6 +622,7 @@ lazy val scriptedSbtReduxProj = (project in file("scripted-sbt-redux"))
   .dependsOn(sbtProj % "compile;test->test", commandProj, utilLogging, utilScripted)
   .settings(
     baseSettings,
+    crossScalaVersions := Seq(baseScalaVersion),
     name := "Scripted sbt Redux",
     libraryDependencies ++= Seq(launcherInterface % "provided"),
     mimaSettings,
@@ -629,6 +634,7 @@ lazy val scriptedSbtOldProj = (project in file("scripted-sbt-old"))
   .dependsOn(scriptedSbtReduxProj)
   .settings(
     baseSettings,
+    crossScalaVersions := Seq(baseScalaVersion),
     name := "Scripted sbt",
     mimaSettings,
     mimaBinaryIssueFilters ++= Seq(
@@ -656,6 +662,7 @@ lazy val dependencyTreeProj = (project in file("dependency-tree"))
   .settings(
     sbtPlugin := true,
     baseSettings,
+    crossScalaVersions := Seq(baseScalaVersion),
     name := "sbt-dependency-tree",
     publishMavenStyle := true,
     // mimaSettings,
@@ -1140,17 +1147,11 @@ lazy val serverTestProj = (project in file("server-test"))
 val isWin = scala.util.Properties.isWin
 val buildThinClient =
   inputKey[JPath]("generate a java implementation of the thin client")
-val thinClientClasspath =
-  taskKey[Seq[JPath]]("Generate the classpath for thin client (compacted for windows)")
-val thinClientNativeImageCommand = taskKey[String]("The native image command")
-val thinClientNativeImageOptions = settingKey[Seq[String]]("The native image options")
-val thinClientNativeImageClass = settingKey[String]("The class for the native image")
-val buildNativeThinClient = taskKey[JPath]("Generate a native executable")
 // Use a TaskKey rather than SettingKey for nativeInstallDirectory so it can left unset by default
 val nativeInstallDirectory = taskKey[JPath]("The install directory for the native executable")
 val installNativeThinClient = inputKey[JPath]("Install the native executable")
-val nativeThinClientPath = settingKey[JPath]("The location of the native executable")
 lazy val sbtClientProj = (project in file("client"))
+  .enablePlugins(NativeImagePlugin)
   .dependsOn(commandProj)
   .settings(
     commonBaseSettings,
@@ -1161,65 +1162,16 @@ lazy val sbtClientProj = (project in file("client"))
     crossPaths := false,
     exportJars := true,
     libraryDependencies += jansi,
-    libraryDependencies += scalatest % "test",
-    /*
-     * On windows, the raw classpath is too large to be a command argument to an
-     * external process so we create symbolic links with short names to get the
-     * classpath length under the limit.
-     */
-    thinClientClasspath := {
-      val original = (Compile / fullClasspathAsJars).value.map(_.data)
-      val outputDir = target.value / "thinclientcp"
-      IO.createDirectory(outputDir)
-      Files.walk(outputDir.toPath).forEach {
-        case f if f.getFileName.toString.endsWith(".jar") => Files.deleteIfExists(f)
-        case _                                            =>
-      }
-      original.zipWithIndex.map {
-        case (f, i) => Files.createSymbolicLink(outputDir.toPath / s"$i.jar", f.toPath)
-      }
+    libraryDependencies += scalatest % Test,
+    Compile / mainClass := Some("sbt.client.Client"),
+    nativeImageReady := { () =>
+      ()
     },
-    thinClientNativeImageCommand := System.getProperty("sbt.native-image", "native-image").toString,
-    buildNativeThinClient / name := s"sbtn${if (isWin) ".exe" else ""}",
-    nativeThinClientPath := target.value.toPath / "bin" / (buildNativeThinClient / name).value,
-    thinClientNativeImageClass := "sbt.client.Client",
-    buildNativeThinClient := {
-      val hasChanges = thinClientClasspath.outputFileChanges.hasChanges
-      val cpString =
-        thinClientClasspath.value.map(_.getFileName).mkString(java.io.File.pathSeparator)
-      val prefix = Seq(thinClientNativeImageCommand.value, "-cp", cpString)
-      val full = prefix ++ thinClientNativeImageOptions.value :+ thinClientNativeImageClass.value
-      val dir = target.value
-      if (hasChanges || !Files.exists(nativeThinClientPath.value)) {
-        val pb = new java.lang.ProcessBuilder(full: _*)
-        pb.directory(dir / "thinclientcp")
-        val proc = pb.start()
-        val thread = new Thread {
-          setDaemon(true)
-          val is = proc.getInputStream
-          val es = proc.getErrorStream
-
-          override def run(): Unit = {
-            Thread.sleep(100)
-            while (proc.isAlive) {
-              if (is.available > 0 || es.available > 0) {
-                while (is.available > 0) System.out.print(is.read.toChar)
-                while (es.available > 0) System.err.print(es.read.toChar)
-              }
-              if (proc.isAlive) Thread.sleep(10)
-            }
-          }
-        }
-        thread.start()
-        proc.waitFor(5, java.util.concurrent.TimeUnit.MINUTES)
-        assert(proc.exitValue == 0, s"Exit value ${proc.exitValue} was nonzero")
-      }
-      nativeThinClientPath.value
-    },
-    thinClientNativeImageOptions := Seq(
+    nativeImageOutput := target.value / "bin" / "sbtn",
+    nativeImageOptions ++= Seq(
       "--no-fallback",
       s"--initialize-at-run-time=sbt.client",
-      "--verbose",
+      // "--verbose",
       "-H:IncludeResourceBundles=jline.console.completer.CandidateListCompletionHandler",
       "-H:+ReportExceptionStackTraces",
       "-H:-ParseRuntimeOptions",
@@ -1506,15 +1458,6 @@ def customCommands: Seq[Setting[_]] = Seq(
     s"""set scalaVersion in ThisBuild := "$scala212" """ ::
       state
   },
-  commands += Command.command("whitesourceOnPush") { state =>
-    sys.env.get("TRAVIS_EVENT_TYPE") match {
-      case Some("push") =>
-        "whitesourceCheckPolicies" ::
-          "whitesourceUpdate" ::
-          state
-      case _ => state
-    }
-  },
   commands += Command.command("release-sbt-local") { state =>
     "clean" ::
       "so compile" ::
@@ -1571,24 +1514,3 @@ ThisBuild / publishTo := {
   Some("releases" at nexus + "service/local/staging/deploy/maven2")
 }
 ThisBuild / publishMavenStyle := true
-ThisBuild / whitesourceProduct := "Lightbend Reactive Platform"
-ThisBuild / whitesourceAggregateProjectName := {
-  // note this can get detached on tag build etc
-  val b = sys.process.Process("git rev-parse --abbrev-ref HEAD").!!.trim
-  val Stable = """1\.([0-9]+)\.x""".r
-  b match {
-    case Stable(y) => "sbt-1." + y.toString + "-stable"
-    case _         => "sbt-master"
-  }
-}
-ThisBuild / whitesourceAggregateProjectToken := {
-  (ThisBuild / whitesourceAggregateProjectName).value match {
-    case "sbt-master"     => "e7a1e55518c0489a98e9c7430c8b2ccd53d9f97c12ed46148b592ebe4c8bf128"
-    case "sbt-1.3-stable" => "7e38cbb4d2fc4599835cd5d2cfb41b150597a4147b15424bb65841664ab2ec0d"
-    case "sbt-1.2-stable" => "54f2313767aa47198971e65595670ee16e1ad0000d20458588e72d3ac2c34763"
-    case _                => "" // it's ok to fail here
-  }
-}
-ThisBuild / whitesourceIgnoredScopes ++= Seq("plugin", "scalafmt", "sxr")
-ThisBuild / whitesourceFailOnError := sys.env.contains("WHITESOURCE_PASSWORD") // fail if pwd is present
-ThisBuild / whitesourceForceCheckAllDependencies := true
diff --git a/internal/util-logging/src/main/scala/sbt/internal/util/Terminal.scala b/internal/util-logging/src/main/scala/sbt/internal/util/Terminal.scala
index 9fa61c02e..0019b04e9 100644
--- a/internal/util-logging/src/main/scala/sbt/internal/util/Terminal.scala
+++ b/internal/util-logging/src/main/scala/sbt/internal/util/Terminal.scala
@@ -189,6 +189,14 @@ object Terminal {
     try Terminal.console.printStream.println(s"[info] $string")
     catch { case _: IOException => }
   }
+
+  private[this] val writeLock = new AnyRef
+  def withWriteLock[A](f: => A): A = {
+    writeLock.synchronized {
+      f
+    }
+  }
+
   private[sbt] def set(terminal: Terminal): Terminal = activeTerminal.getAndSet(terminal)
   implicit class TerminalOps(private val term: Terminal) extends AnyVal {
     def ansi(richString: => String, string: => String): String =
@@ -462,7 +470,7 @@ object Terminal {
   val sepBytes = System.lineSeparator.getBytes("UTF-8")
   private class LinePrintStream(outputStream: OutputStream)
       extends PrintStream(outputStream, true) {
-    override def println(s: String): Unit = synchronized {
+    override def println(s: String): Unit = withWriteLock {
       out.write(s.getBytes("UTF-8") ++ sepBytes)
       out.flush()
     }
@@ -667,7 +675,7 @@ object Terminal {
       }
       override def close(): Unit = if (running.compareAndSet(true, false)) this.interrupt()
     }
-    def read(): Int = {
+    override def read(): Int = {
       if (isScripted) -1
       else if (bootInputStreamHolder.get == null) activeTerminal.get().inputStream.read()
       else {
@@ -681,6 +689,13 @@ object Terminal {
         poll()
       }
     }
+    override def available(): Int =
+      if (isScripted) 0
+      else
+        bootInputStreamHolder.get match {
+          case null   => activeTerminal.get().inputStream.available()
+          case stream => stream.available() + activeTerminal.get().inputStream.available()
+        }
   }
   private[this] object proxyOutputStream extends OutputStream {
     private[this] def os: OutputStream = activeTerminal.get().outputStream
@@ -911,7 +926,6 @@ object Terminal {
     override def getWidth: Int = getSize._1
     override def getHeight: Int = getSize._2
     private[this] val rawMode = new AtomicBoolean(false)
-    private[this] val writeLock = new AnyRef
     def throwIfClosed[R](f: => R): R = if (isStopped.get) throw new ClosedChannelException else f
     override def getLastLine: Option[String] = progressState.currentLine
     override def getLines: Seq[String] = progressState.getLines
@@ -939,7 +953,7 @@ object Terminal {
         write(Array((b & 0xFF).toByte))
       }
       override def write(b: Array[Byte]): Unit = throwIfClosed {
-        writeLock.synchronized(doWrite(b))
+        withWriteLock(doWrite(b))
       }
       override def write(b: Array[Byte], offset: Int, length: Int): Unit = throwIfClosed {
         write(Arrays.copyOfRange(b, offset, offset + length))
diff --git a/internal/util-logging/src/main/scala/sbt/util/InterfaceUtil.scala b/internal/util-logging/src/main/scala/sbt/util/InterfaceUtil.scala
index 40fecbae1..e7f2d33cc 100644
--- a/internal/util-logging/src/main/scala/sbt/util/InterfaceUtil.scala
+++ b/internal/util-logging/src/main/scala/sbt/util/InterfaceUtil.scala
@@ -7,10 +7,14 @@
 
 package sbt.util
 
-import xsbti.{ Position, Problem, Severity, T2 }
 import java.io.File
 import java.util.Optional
 import java.util.function.Supplier
+import java.{ util => ju }
+
+import xsbti.{ DiagnosticCode, DiagnosticRelatedInformation, Position, Problem, Severity, T2 }
+
+import scala.collection.mutable.ListBuffer
 
 object InterfaceUtil {
   def toSupplier[A](a: => A): Supplier[A] = new Supplier[A] {
@@ -43,6 +47,18 @@ object InterfaceUtil {
       case None    => Optional.empty[A]()
     }
 
+  def l2jl[A](l: List[A]): ju.List[A] = {
+    val jl = new ju.ArrayList[A](l.size)
+    l.foreach(jl.add(_))
+    jl
+  }
+
+  def jl2l[A](jl: ju.List[A]): List[A] = {
+    val l = ListBuffer[A]()
+    jl.forEach(l += _)
+    l.toList
+  }
+
   @deprecated("Use the overload of this method with more arguments", "1.2.2")
   def position(
       line0: Option[Integer],
@@ -104,6 +120,7 @@ object InterfaceUtil {
   def problem(cat: String, pos: Position, msg: String, sev: Severity): Problem =
     problem(cat, pos, msg, sev, None)
 
+  @deprecated("Use the overload of this method with more arguments", "1.7.2")
   def problem(
       cat: String,
       pos: Position,
@@ -111,7 +128,18 @@ object InterfaceUtil {
       sev: Severity,
       rendered: Option[String]
   ): Problem =
-    new ConcreteProblem(cat, pos, msg, sev, rendered)
+    problem(cat, pos, msg, sev, rendered, None, List.empty[DiagnosticRelatedInformation])
+
+  def problem(
+      cat: String,
+      pos: Position,
+      msg: String,
+      sev: Severity,
+      rendered: Option[String],
+      diagnosticCode: Option[DiagnosticCode],
+      diagnosticRelatedInforamation: List[DiagnosticRelatedInformation]
+  ): Problem =
+    new ConcreteProblem(cat, pos, msg, sev, rendered, diagnosticCode, diagnosticRelatedInforamation)
 
   private final class ConcreteT2[A1, A2](a1: A1, a2: A2) extends T2[A1, A2] {
     val get1: A1 = a1
@@ -166,13 +194,18 @@ object InterfaceUtil {
       pos: Position,
       msg: String,
       sev: Severity,
-      rendered0: Option[String]
+      rendered0: Option[String],
+      diagnosticCode0: Option[DiagnosticCode],
+      diagnosticRelatedInformation0: List[DiagnosticRelatedInformation]
   ) extends Problem {
     val category = cat
     val position = pos
     val message = msg
     val severity = sev
     override val rendered = o2jo(rendered0)
+    override def diagnosticCode: Optional[DiagnosticCode] = o2jo(diagnosticCode0)
+    override def diagnosticRelatedInforamation(): ju.List[DiagnosticRelatedInformation] =
+      l2jl(diagnosticRelatedInformation0)
     override def toString = s"[$severity] $pos: $message"
   }
 }
diff --git a/launcher-package/build.sbt b/launcher-package/build.sbt
index b621c7695..6ccf65f27 100755
--- a/launcher-package/build.sbt
+++ b/launcher-package/build.sbt
@@ -119,7 +119,7 @@ val root = (project in file(".")).
       file
     },
     // update sbt.sh at root
-    sbtnVersion := "1.4.7",
+    sbtnVersion := "1.7.0",
     sbtnJarsBaseUrl := "https://github.com/sbt/sbtn-dist/releases/download",
     sbtnJarsMappings := {
       val baseUrl = sbtnJarsBaseUrl.value
diff --git a/main-command/src/main/java/sbt/internal/BootServerSocket.java b/main-command/src/main/java/sbt/internal/BootServerSocket.java
index 5cf91dc50..a64c18951 100644
--- a/main-command/src/main/java/sbt/internal/BootServerSocket.java
+++ b/main-command/src/main/java/sbt/internal/BootServerSocket.java
@@ -310,7 +310,7 @@ public class BootServerSocket implements AutoCloseable {
       return "sbt-load" + hash;
     } else {
       final String alternativeSocketLocation =
-          System.getenv().getOrDefault("XDG_RUNTIME_DIR", "/tmp");
+          System.getenv().getOrDefault("XDG_RUNTIME_DIR", System.getProperty("java.io.tmpdir"));
       final Path alternativeSocketLocationRoot =
           Paths.get(alternativeSocketLocation).resolve(".sbt");
       final Path locationForSocket = alternativeSocketLocationRoot.resolve("sbt-socket" + hash);
diff --git a/main/src/main/scala/sbt/Cross.scala b/main/src/main/scala/sbt/Cross.scala
index 9966c5eb9..b6f8447d4 100644
--- a/main/src/main/scala/sbt/Cross.scala
+++ b/main/src/main/scala/sbt/Cross.scala
@@ -8,7 +8,6 @@
 package sbt
 
 import java.io.File
-import java.util.regex.Pattern
 import sbt.Def.{ ScopedKey, Setting }
 import sbt.Keys._
 import sbt.SlashSyntax0._
@@ -16,10 +15,11 @@ import sbt.internal.Act
 import sbt.internal.CommandStrings._
 import sbt.internal.inc.ScalaInstance
 import sbt.internal.util.AttributeKey
+import sbt.internal.util.MessageOnlyException
 import sbt.internal.util.complete.DefaultParsers._
 import sbt.internal.util.complete.{ DefaultParsers, Parser }
 import sbt.io.IO
-import sbt.librarymanagement.CrossVersion
+import sbt.librarymanagement.{ SemanticSelector, VersionNumber }
 
 /**
  * Cross implements the Scala cross building commands:
@@ -295,7 +295,14 @@ object Cross {
       if (switch.version.force) {
         state.log.info(s"Forcing Scala version to $version on all projects.")
       } else {
-        state.log.info(s"Setting Scala version to $version on ${included.size} projects.")
+        included
+          .groupBy(_._2)
+          .foreach {
+            case (selectedVersion, projects) =>
+              state.log.info(
+                s"Setting Scala version to $selectedVersion on ${projects.size} projects."
+              )
+          }
       }
       if (excluded.nonEmpty && !switch.verbose) {
         state.log.info(s"Excluded ${excluded.size} projects, run ++ $version -v for more details.")
@@ -327,10 +334,11 @@ object Cross {
         } ++ structure.units.keys
           .map(BuildRef.apply)
           .map(proj => (proj, Some(version), crossVersions(extracted, proj)))
-      } else if (version.contains('*')) {
+      } else {
         projectScalaVersions.map {
           case (project, scalaVersions) =>
-            globFilter(version, scalaVersions) match {
+            val selector = SemanticSelector(version)
+            scalaVersions.filter(v => selector.matches(VersionNumber(v))) match {
               case Nil          => (project, None, scalaVersions)
               case Seq(version) => (project, Some(version), scalaVersions)
               case multiple =>
@@ -339,15 +347,6 @@ object Cross {
                 )
             }
         }
-      } else {
-        val binaryVersion = CrossVersion.binaryScalaVersion(version)
-        projectScalaVersions.map {
-          case (project, scalaVersions) =>
-            if (scalaVersions.exists(v => CrossVersion.binaryScalaVersion(v) == binaryVersion))
-              (project, Some(version), scalaVersions)
-            else
-              (project, None, scalaVersions)
-        }
       }
     }
 
@@ -359,10 +358,15 @@ object Cross {
     }
 
     if (included.isEmpty) {
-      sys.error(
-        s"""Switch failed: no subprojects list "$version" (or compatible version) in crossScalaVersions setting.
-           |If you want to force it regardless, call ++ $version!""".stripMargin
-      )
+      if (isSelector(version))
+        throw new MessageOnlyException(
+          s"""Switch failed: no subprojects have a version matching "$version" in the crossScalaVersions setting."""
+        )
+      else
+        throw new MessageOnlyException(
+          s"""Switch failed: no subprojects list "$version" (or compatible version) in crossScalaVersions setting.
+             |If you want to force it regardless, call ++ $version!""".stripMargin
+        )
     }
 
     logSwitchInfo(included, excluded)
@@ -370,19 +374,13 @@ object Cross {
     (setScalaVersionsForProjects(instance, included, state, extracted), included.map(_._1))
   }
 
-  def globFilter(pattern: String, candidates: Seq[String]): Seq[String] = {
-    def createGlobRegex(remainingPattern: String): String =
-      remainingPattern.indexOf("*") match {
-        case -1 => Pattern.quote(remainingPattern)
-        case n =>
-          val chunk = Pattern.quote(remainingPattern.substring(0, n)) + ".*"
-          if (remainingPattern.length > n)
-            chunk + createGlobRegex(remainingPattern.substring(n + 1))
-          else chunk
-      }
-    val compiledPattern = Pattern.compile(createGlobRegex(pattern))
-    candidates.filter(compiledPattern.matcher(_).matches())
-  }
+  // determine whether this is a 'specific' version or a selector
+  // to be passed to SemanticSelector
+  private def isSelector(version: String): Boolean =
+    version.contains('*') || version.contains('x') || version.contains('X') || version.contains(' ') ||
+      version.contains('<') || version.contains('>') || version.contains('|') || version.contains(
+      '='
+    )
 
   private def setScalaVersionsForProjects(
       instance: Option[(File, ScalaInstance)],
diff --git a/main/src/main/scala/sbt/Keys.scala b/main/src/main/scala/sbt/Keys.scala
index 392812271..10ae7f1b1 100644
--- a/main/src/main/scala/sbt/Keys.scala
+++ b/main/src/main/scala/sbt/Keys.scala
@@ -412,6 +412,8 @@ object Keys {
   val bspBuildTargetResourcesItem = taskKey[ResourcesItem]("").withRank(DTask)
   val bspBuildTargetDependencySources = inputKey[Unit]("").withRank(DTask)
   val bspBuildTargetDependencySourcesItem = taskKey[DependencySourcesItem]("").withRank(DTask)
+  val bspBuildTargetOutputPaths = inputKey[Unit]("").withRank(DTask)
+  val bspBuildTargetOutputPathsItem = taskKey[OutputPathsItem]("").withRank(DTask)
   val bspBuildTargetCompile = inputKey[Unit]("").withRank(DTask)
   val bspBuildTargetCompileItem = taskKey[Int]("").withRank(DTask)
   val bspBuildTargetTest = inputKey[Unit]("Corresponds to buildTarget/test request").withRank(DTask)
diff --git a/main/src/main/scala/sbt/Main.scala b/main/src/main/scala/sbt/Main.scala
index 4d30a9920..c2cbb74f9 100644
--- a/main/src/main/scala/sbt/Main.scala
+++ b/main/src/main/scala/sbt/Main.scala
@@ -141,23 +141,31 @@ private[sbt] object xMain {
 
   private def getSocketOrExit(
       configuration: xsbti.AppConfiguration
-  ): (Option[BootServerSocket], Option[Exit]) =
-    try (Some(new BootServerSocket(configuration)) -> None)
+  ): (Option[BootServerSocket], Option[Exit]) = {
+    def printThrowable(e: Throwable): Unit = {
+      println("sbt thinks that server is already booting because of this exception:")
+      e.printStackTrace()
+    }
+
+    try Some(new BootServerSocket(configuration)) -> None
     catch {
       case e: ServerAlreadyBootingException
           if System.console != null && !ITerminal.startedByRemoteClient =>
-        println("sbt thinks that server is already booting because of this exception:")
-        e.printStackTrace()
+        printThrowable(e)
         println("Create a new server? y/n (default y)")
         val exit =
           if (ITerminal.get.withRawInput(System.in.read) == 'n'.toInt) Some(Exit(1))
           else None
         (None, exit)
-      case _: ServerAlreadyBootingException =>
+      case e: ServerAlreadyBootingException =>
         if (SysProp.forceServerStart) (None, None)
-        else (None, Some(Exit(2)))
+        else {
+          printThrowable(e)
+          (None, Some(Exit(2)))
+        }
       case _: UnsatisfiedLinkError => (None, None)
     }
+  }
 }
 
 final class ScriptMain extends xsbti.AppMain {
diff --git a/main/src/main/scala/sbt/internal/Banner.scala b/main/src/main/scala/sbt/internal/Banner.scala
index 0b5a25e71..24e3a9f6b 100644
--- a/main/src/main/scala/sbt/internal/Banner.scala
+++ b/main/src/main/scala/sbt/internal/Banner.scala
@@ -10,6 +10,15 @@ package sbt.internal
 private[sbt] object Banner {
   def apply(version: String): Option[String] =
     version match {
+      case v if v.startsWith("1.7.0") =>
+        Some(s"""
+                |Here are some highlights of this release:
+                |  - `++ <sv> <command1>` updates
+                |  - Scala 3 compiler error improvements
+                |  - Improved Build Server Protocol (BSP) support
+                |See https://eed3si9n.com/sbt-1.7.0 for full release notes.
+                |Hide the banner for this release by running `skipBanner`.
+                |""".stripMargin.linesIterator.mkString("\n"))
       case v if v.startsWith("1.6.0") =>
         Some(s"""
                 |Here are some highlights of this release:
diff --git a/main/src/main/scala/sbt/internal/CommandStrings.scala b/main/src/main/scala/sbt/internal/CommandStrings.scala
index 439cdc295..97d97fa1b 100644
--- a/main/src/main/scala/sbt/internal/CommandStrings.scala
+++ b/main/src/main/scala/sbt/internal/CommandStrings.scala
@@ -374,17 +374,23 @@ $SwitchCommand [<scala-version>=]<scala-home>[!] [-v] [<command>]
 	Uses the Scala installation at <scala-home> by configuring the scalaHome setting for
 	all projects.
 
-	If <scala-version> is specified, it is used as the value of the scalaVersion setting.
+	If <scala-version> is specified, it is used to select the value of the scalaVersion setting
+  from one of the values of crossScalaVersions setting.
 	This is important when using managed dependencies.  This version will determine the
 	cross-version used as well as transitive dependencies.
 
-  Only projects that are listed to be binary compatible with the selected Scala version
+  <scala-version> may be an actual Scala version such as 3.1.3, or a Semantic Version selector
+  pattern such as 2.13.x. Only subprojects that are listed to match the version pattern
   have their Scala version switched.  If ! is supplied, then all projects projects have
   their Scala version switched.
 
   If -v is supplied, verbose logging of the Scala version switching is done.
 
-	If <command> is provided, it is then executed.
+	If <command> is provided, it is then executed. For example:
+
+    ++ 2.13.x test
+
+  The above will run test on all subprojects that contain a 2.13 Scala version.
 
 	See also `help $CrossCommand`
 """
diff --git a/main/src/main/scala/sbt/internal/Load.scala b/main/src/main/scala/sbt/internal/Load.scala
index 08965b0ce..834257634 100755
--- a/main/src/main/scala/sbt/internal/Load.scala
+++ b/main/src/main/scala/sbt/internal/Load.scala
@@ -101,10 +101,8 @@ private[sbt] object Load {
     val delegates = defaultDelegates
     val pluginMgmt = PluginManagement(loader)
     val inject = InjectSettings(injectGlobal(state), Nil, const(Nil))
-    System.setProperty(
-      "swoval.tmpdir",
-      System.getProperty("swoval.tmpdir", globalBase.getAbsolutePath.toString)
-    )
+    SysProp.setSwovalTempDir()
+    SysProp.setIpcSocketTempDir()
     LoadBuildConfiguration(
       stagingDirectory,
       classpath,
diff --git a/main/src/main/scala/sbt/internal/SysProp.scala b/main/src/main/scala/sbt/internal/SysProp.scala
index 737b0b368..ce5760edd 100644
--- a/main/src/main/scala/sbt/internal/SysProp.scala
+++ b/main/src/main/scala/sbt/internal/SysProp.scala
@@ -9,6 +9,7 @@ package sbt
 package internal
 
 import java.io.File
+import java.nio.file.{ Path, Paths }
 import java.util.Locale
 
 import scala.util.control.NonFatal
@@ -220,4 +221,33 @@ object SysProp {
 
   lazy val sbtCredentialsEnv: Option[Credentials] =
     sys.env.get("SBT_CREDENTIALS").map(raw => new FileCredentials(new File(raw)))
+
+  private[sbt] def setSwovalTempDir(): Unit = {
+    val _ = getOrUpdateSwovalTmpDir(
+      runtimeDirectory.resolve("swoval").toString
+    )
+  }
+  private[sbt] def setIpcSocketTempDir(): Unit = {
+    val _ = getOrUpdateIpcSocketTmpDir(
+      runtimeDirectory.resolve("ipcsocket").toString
+    )
+  }
+  private[this] lazy val getOrUpdateSwovalTmpDir: String => String =
+    getOrUpdateSysProp("swoval.tmpdir")(_)
+  private[this] lazy val getOrUpdateIpcSocketTmpDir: String => String =
+    getOrUpdateSysProp("sbt.ipcsocket.tmpdir")(_)
+  private[this] def getOrUpdateSysProp(key: String)(value: String): String = {
+    val newVal = sys.props.getOrElse(key, value)
+    sys.props += (key -> newVal)
+    newVal
+  }
+
+  /**
+   * This returns a temporary directory that is friendly to macOS, Linux,
+   * Windows, and Docker environment.
+   * Mostly these directories will be used as throw-away location to extract
+   * native files etc.
+   */
+  private[this] def runtimeDirectory: Path =
+    Paths.get(sys.env.getOrElse("XDG_RUNTIME_DIR", sys.props("java.io.tmpdir"))).resolve(".sbt")
 }
diff --git a/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala b/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala
index 4e2abdbe8..b9aaff3a5 100644
--- a/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala
+++ b/main/src/main/scala/sbt/internal/server/BuildServerProtocol.scala
@@ -52,6 +52,7 @@ object BuildServerProtocol {
     RunProvider(BuildServerConnection.languages),
     dependencySourcesProvider = true,
     resourcesProvider = true,
+    outputPathsProvider = true,
     canReload = true,
     jvmRunEnvironmentProvider = true,
     jvmTestEnvironmentProvider = true,
@@ -158,6 +159,16 @@ object BuildServerProtocol {
       }
     }.evaluated,
     bspBuildTargetDependencySources / aggregate := false,
+    bspBuildTargetOutputPaths := bspInputTask { (state, _, workspace, filter) =>
+      Def.task {
+        import sbt.internal.bsp.codec.JsonProtocol._
+        val items = bspBuildTargetOutputPathsItem.result.all(filter).value
+        val successfulItems = anyOrThrow(items)
+        val result = OutputPathsResult(successfulItems.toVector)
+        state.respondEvent(result)
+      }
+    }.evaluated,
+    bspBuildTargetOutputPaths / aggregate := false,
     bspBuildTargetCompile := bspInputTask { (state, _, workspace, filter) =>
       workspace.warnIfBuildsNonEmpty(Method.Compile, state.log)
       Def.task {
@@ -267,6 +278,10 @@ object BuildServerProtocol {
       ResourcesItem(id, uris)
     },
     bspBuildTargetDependencySourcesItem := dependencySourcesItemTask.value,
+    bspBuildTargetOutputPathsItem := {
+      val id = bspTargetIdentifier.value
+      OutputPathsItem(id, Vector(OutputPathItem(target.value.toURI, OutputPathItemKind.Directory)))
+    },
     bspBuildTargetCompileItem := bspCompileTask.value,
     bspBuildTargetRun := bspRunTask.evaluated,
     bspBuildTargetScalacOptionsItem := scalacOptionsTask.value,
@@ -318,6 +333,7 @@ object BuildServerProtocol {
     final val Shutdown = "build/shutdown"
     final val Sources = "buildTarget/sources"
     final val Resources = "buildTarget/resources"
+    final val OutputPaths = "buildTarget/outputPaths"
     final val DependencySources = "buildTarget/dependencySources"
     final val Compile = "buildTarget/compile"
     final val Test = "buildTarget/test"
@@ -453,6 +469,12 @@ object BuildServerProtocol {
             val targets = param.targets.map(_.uri).mkString(" ")
             val command = Keys.bspBuildTargetResources.key
             val _ = callback.appendExec(s"$command $targets", Some(r.id))
+
+          case r if r.method == Method.OutputPaths =>
+            val param = Converter.fromJson[OutputPathsParams](json(r)).get
+            val targets = param.targets.map(_.uri).mkString(" ")
+            val command = Keys.bspBuildTargetOutputPaths.key
+            val _ = callback.appendExec(s"$command $targets", Some(r.id))
         },
         onResponse = PartialFunction.empty,
         onNotification = {
@@ -661,7 +683,7 @@ object BuildServerProtocol {
     val target = Keys.bspTargetIdentifier.value
     val classpath = Keys.fullClasspath.value.map(_.data.toURI).toVector
     val jvmOptions = Keys.javaOptions.value.toVector
-    val baseDir = Keys.baseDirectory.value.toURI().toString()
+    val baseDir = Keys.baseDirectory.value.getAbsolutePath
     val env = envVars.value
 
     JvmEnvironmentItem(
diff --git a/main/src/test/scala/sbt/CrossSpec.scala b/main/src/test/scala/sbt/CrossSpec.scala
deleted file mode 100644
index 40673d548..000000000
--- a/main/src/test/scala/sbt/CrossSpec.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * sbt
- * Copyright 2011 - 2018, Lightbend, Inc.
- * Copyright 2008 - 2010, Mark Harrah
- * Licensed under Apache License 2.0 (see LICENSE)
- */
-
-package sbt
-
-object CrossSpec extends verify.BasicTestSuite {
-  import Cross._
-
-  test("glob filter should work as expected") {
-    assert(globFilter("2.13.*", Seq("2.12.8", "2.13.16", "3.0.1")) == Seq("2.13.16"))
-    assert(globFilter("3.*", Seq("2.12.8", "2.13.16", "3.0.1")) == Seq("3.0.1"))
-    assert(globFilter("3.*", Seq("3.0.1", "30.1")) == Seq("3.0.1"))
-    assert(globFilter("2.*", Seq("2.12.8", "2.13.16", "3.0.1")) == Seq("2.12.8", "2.13.16"))
-    assert(globFilter("4.*", Seq("2.12.8", "2.13.16", "3.0.1")) == Nil)
-  }
-}
diff --git a/notes/1.7.0/cross-strict-aggregation-scala-3.md b/notes/1.7.0/cross-strict-aggregation-scala-3.md
new file mode 100644
index 000000000..8e00c2422
--- /dev/null
+++ b/notes/1.7.0/cross-strict-aggregation-scala-3.md
@@ -0,0 +1,8 @@
+[@ruippeixotog]: https://github.com/ruippeixotog
+
+[#6915]: https://github.com/sbt/sbt/issues/6915
+[#6926]: https://github.com/sbt/sbt/pull/6926
+
+### Bug Fixes
+
+- Make `++ <scala-version> <command>` run `<command>` only on compatible Scala 3 subprojects. [#6915][]/[#6926][] by [@ruippeixotog][]
diff --git a/notes/1.8.0/bsp-output-paths.md b/notes/1.8.0/bsp-output-paths.md
new file mode 100644
index 000000000..a59adde1c
--- /dev/null
+++ b/notes/1.8.0/bsp-output-paths.md
@@ -0,0 +1,4 @@
+[@povder]: https://github.com/povder
+
+### Improvements
+- Add support for newly introduced `buildTarget/outputPaths` method of BSP protocol. See [bsp#269](https://github.com/build-server-protocol/build-server-protocol/pull/269) pull request and [bsp#205](https://github.com/build-server-protocol/build-server-protocol/issues/205) issue.
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 368646ed4..86df2e8ef 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -12,10 +12,10 @@ object Dependencies {
     sys.env.get("BUILD_VERSION") orElse sys.props.get("sbt.build.version")
 
   // sbt modules
-  private val ioVersion = nightlyVersion.getOrElse("1.6.0")
+  private val ioVersion = nightlyVersion.getOrElse("1.7.0")
   private val lmVersion =
-    sys.props.get("sbt.build.lm.version").orElse(nightlyVersion).getOrElse("1.7.0-M1")
-  val zincVersion = nightlyVersion.getOrElse("1.7.0-M2")
+    sys.props.get("sbt.build.lm.version").orElse(nightlyVersion).getOrElse("1.7.0")
+  val zincVersion = nightlyVersion.getOrElse("1.7.1")
 
   private val sbtIO = "org.scala-sbt" %% "io" % ioVersion
 
@@ -26,7 +26,7 @@ object Dependencies {
   val launcherInterface = "org.scala-sbt" % "launcher-interface" % launcherVersion
   val rawLauncher = "org.scala-sbt" % "launcher" % launcherVersion
   val testInterface = "org.scala-sbt" % "test-interface" % "1.0"
-  val ipcSocket = "org.scala-sbt.ipcsocket" % "ipcsocket" % "1.3.1"
+  val ipcSocket = "org.scala-sbt.ipcsocket" % "ipcsocket" % "1.5.0"
 
   private val compilerInterface = "org.scala-sbt" % "compiler-interface" % zincVersion
   private val compilerClasspath = "org.scala-sbt" %% "zinc-classpath" % zincVersion
diff --git a/project/build.properties b/project/build.properties
index c8fcab543..5b12c1dc6 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.6.2
+sbt.version=1.7.0
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 00c24984e..28508259b 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -7,8 +7,8 @@ addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.1.2")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.0")
 addSbtPlugin("org.scala-sbt" % "sbt-contraband" % "0.5.1")
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.6.5")
-addSbtPlugin("com.lightbend" % "sbt-whitesource" % "0.1.14")
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "1.2.0")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.8.1")
 addSbtPlugin("com.swoval" % "sbt-java-format" % "0.3.1")
+addSbtPlugin("org.scalameta" % "sbt-native-image" % "0.3.1")
 addDependencyTreePlugin
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/BuildServerCapabilities.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/BuildServerCapabilities.scala
index 82f88a090..4d625cce9 100644
--- a/protocol/src/main/contraband-scala/sbt/internal/bsp/BuildServerCapabilities.scala
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/BuildServerCapabilities.scala
@@ -17,6 +17,7 @@ final class BuildServerCapabilities private (
   val runProvider: Option[sbt.internal.bsp.RunProvider],
   val dependencySourcesProvider: Option[Boolean],
   val resourcesProvider: Option[Boolean],
+  val outputPathsProvider: Option[Boolean],
   val canReload: Option[Boolean],
   val jvmRunEnvironmentProvider: Option[Boolean],
   val jvmTestEnvironmentProvider: Option[Boolean]) extends Serializable {
@@ -24,17 +25,17 @@ final class BuildServerCapabilities private (
   
   
   override def equals(o: Any): Boolean = this.eq(o.asInstanceOf[AnyRef]) || (o match {
-    case x: BuildServerCapabilities => (this.compileProvider == x.compileProvider) && (this.testProvider == x.testProvider) && (this.runProvider == x.runProvider) && (this.dependencySourcesProvider == x.dependencySourcesProvider) && (this.resourcesProvider == x.resourcesProvider) && (this.canReload == x.canReload) && (this.jvmRunEnvironmentProvider == x.jvmRunEnvironmentProvider) && (this.jvmTestEnvironmentProvider == x.jvmTestEnvironmentProvider)
+    case x: BuildServerCapabilities => (this.compileProvider == x.compileProvider) && (this.testProvider == x.testProvider) && (this.runProvider == x.runProvider) && (this.dependencySourcesProvider == x.dependencySourcesProvider) && (this.resourcesProvider == x.resourcesProvider) && (this.outputPathsProvider == x.outputPathsProvider) && (this.canReload == x.canReload) && (this.jvmRunEnvironmentProvider == x.jvmRunEnvironmentProvider) && (this.jvmTestEnvironmentProvider == x.jvmTestEnvironmentProvider)
     case _ => false
   })
   override def hashCode: Int = {
-    37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (17 + "sbt.internal.bsp.BuildServerCapabilities".##) + compileProvider.##) + testProvider.##) + runProvider.##) + dependencySourcesProvider.##) + resourcesProvider.##) + canReload.##) + jvmRunEnvironmentProvider.##) + jvmTestEnvironmentProvider.##)
+    37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (37 * (17 + "sbt.internal.bsp.BuildServerCapabilities".##) + compileProvider.##) + testProvider.##) + runProvider.##) + dependencySourcesProvider.##) + resourcesProvider.##) + outputPathsProvider.##) + canReload.##) + jvmRunEnvironmentProvider.##) + jvmTestEnvironmentProvider.##)
   }
   override def toString: String = {
-    "BuildServerCapabilities(" + compileProvider + ", " + testProvider + ", " + runProvider + ", " + dependencySourcesProvider + ", " + resourcesProvider + ", " + canReload + ", " + jvmRunEnvironmentProvider + ", " + jvmTestEnvironmentProvider + ")"
+    "BuildServerCapabilities(" + compileProvider + ", " + testProvider + ", " + runProvider + ", " + dependencySourcesProvider + ", " + resourcesProvider + ", " + outputPathsProvider + ", " + canReload + ", " + jvmRunEnvironmentProvider + ", " + jvmTestEnvironmentProvider + ")"
   }
-  private[this] def copy(compileProvider: Option[sbt.internal.bsp.CompileProvider] = compileProvider, testProvider: Option[sbt.internal.bsp.TestProvider] = testProvider, runProvider: Option[sbt.internal.bsp.RunProvider] = runProvider, dependencySourcesProvider: Option[Boolean] = dependencySourcesProvider, resourcesProvider: Option[Boolean] = resourcesProvider, canReload: Option[Boolean] = canReload, jvmRunEnvironmentProvider: Option[Boolean] = jvmRunEnvironmentProvider, jvmTestEnvironmentProvider: Option[Boolean] = jvmTestEnvironmentProvider): BuildServerCapabilities = {
-    new BuildServerCapabilities(compileProvider, testProvider, runProvider, dependencySourcesProvider, resourcesProvider, canReload, jvmRunEnvironmentProvider, jvmTestEnvironmentProvider)
+  private[this] def copy(compileProvider: Option[sbt.internal.bsp.CompileProvider] = compileProvider, testProvider: Option[sbt.internal.bsp.TestProvider] = testProvider, runProvider: Option[sbt.internal.bsp.RunProvider] = runProvider, dependencySourcesProvider: Option[Boolean] = dependencySourcesProvider, resourcesProvider: Option[Boolean] = resourcesProvider, outputPathsProvider: Option[Boolean] = outputPathsProvider, canReload: Option[Boolean] = canReload, jvmRunEnvironmentProvider: Option[Boolean] = jvmRunEnvironmentProvider, jvmTestEnvironmentProvider: Option[Boolean] = jvmTestEnvironmentProvider): BuildServerCapabilities = {
+    new BuildServerCapabilities(compileProvider, testProvider, runProvider, dependencySourcesProvider, resourcesProvider, outputPathsProvider, canReload, jvmRunEnvironmentProvider, jvmTestEnvironmentProvider)
   }
   def withCompileProvider(compileProvider: Option[sbt.internal.bsp.CompileProvider]): BuildServerCapabilities = {
     copy(compileProvider = compileProvider)
@@ -66,6 +67,12 @@ final class BuildServerCapabilities private (
   def withResourcesProvider(resourcesProvider: Boolean): BuildServerCapabilities = {
     copy(resourcesProvider = Option(resourcesProvider))
   }
+  def withOutputPathsProvider(outputPathsProvider: Option[Boolean]): BuildServerCapabilities = {
+    copy(outputPathsProvider = outputPathsProvider)
+  }
+  def withOutputPathsProvider(outputPathsProvider: Boolean): BuildServerCapabilities = {
+    copy(outputPathsProvider = Option(outputPathsProvider))
+  }
   def withCanReload(canReload: Option[Boolean]): BuildServerCapabilities = {
     copy(canReload = canReload)
   }
@@ -87,6 +94,6 @@ final class BuildServerCapabilities private (
 }
 object BuildServerCapabilities {
   
-  def apply(compileProvider: Option[sbt.internal.bsp.CompileProvider], testProvider: Option[sbt.internal.bsp.TestProvider], runProvider: Option[sbt.internal.bsp.RunProvider], dependencySourcesProvider: Option[Boolean], resourcesProvider: Option[Boolean], canReload: Option[Boolean], jvmRunEnvironmentProvider: Option[Boolean], jvmTestEnvironmentProvider: Option[Boolean]): BuildServerCapabilities = new BuildServerCapabilities(compileProvider, testProvider, runProvider, dependencySourcesProvider, resourcesProvider, canReload, jvmRunEnvironmentProvider, jvmTestEnvironmentProvider)
-  def apply(compileProvider: sbt.internal.bsp.CompileProvider, testProvider: sbt.internal.bsp.TestProvider, runProvider: sbt.internal.bsp.RunProvider, dependencySourcesProvider: Boolean, resourcesProvider: Boolean, canReload: Boolean, jvmRunEnvironmentProvider: Boolean, jvmTestEnvironmentProvider: Boolean): BuildServerCapabilities = new BuildServerCapabilities(Option(compileProvider), Option(testProvider), Option(runProvider), Option(dependencySourcesProvider), Option(resourcesProvider), Option(canReload), Option(jvmRunEnvironmentProvider), Option(jvmTestEnvironmentProvider))
+  def apply(compileProvider: Option[sbt.internal.bsp.CompileProvider], testProvider: Option[sbt.internal.bsp.TestProvider], runProvider: Option[sbt.internal.bsp.RunProvider], dependencySourcesProvider: Option[Boolean], resourcesProvider: Option[Boolean], outputPathsProvider: Option[Boolean], canReload: Option[Boolean], jvmRunEnvironmentProvider: Option[Boolean], jvmTestEnvironmentProvider: Option[Boolean]): BuildServerCapabilities = new BuildServerCapabilities(compileProvider, testProvider, runProvider, dependencySourcesProvider, resourcesProvider, outputPathsProvider, canReload, jvmRunEnvironmentProvider, jvmTestEnvironmentProvider)
+  def apply(compileProvider: sbt.internal.bsp.CompileProvider, testProvider: sbt.internal.bsp.TestProvider, runProvider: sbt.internal.bsp.RunProvider, dependencySourcesProvider: Boolean, resourcesProvider: Boolean, outputPathsProvider: Boolean, canReload: Boolean, jvmRunEnvironmentProvider: Boolean, jvmTestEnvironmentProvider: Boolean): BuildServerCapabilities = new BuildServerCapabilities(Option(compileProvider), Option(testProvider), Option(runProvider), Option(dependencySourcesProvider), Option(resourcesProvider), Option(outputPathsProvider), Option(canReload), Option(jvmRunEnvironmentProvider), Option(jvmTestEnvironmentProvider))
 }
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathItem.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathItem.scala
new file mode 100644
index 000000000..da00ff79c
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathItem.scala
@@ -0,0 +1,36 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp
+final class OutputPathItem private (
+  val uri: java.net.URI,
+  val kind: Int) extends Serializable {
+  
+  
+  
+  override def equals(o: Any): Boolean = this.eq(o.asInstanceOf[AnyRef]) || (o match {
+    case x: OutputPathItem => (this.uri == x.uri) && (this.kind == x.kind)
+    case _ => false
+  })
+  override def hashCode: Int = {
+    37 * (37 * (37 * (17 + "sbt.internal.bsp.OutputPathItem".##) + uri.##) + kind.##)
+  }
+  override def toString: String = {
+    "OutputPathItem(" + uri + ", " + kind + ")"
+  }
+  private[this] def copy(uri: java.net.URI = uri, kind: Int = kind): OutputPathItem = {
+    new OutputPathItem(uri, kind)
+  }
+  def withUri(uri: java.net.URI): OutputPathItem = {
+    copy(uri = uri)
+  }
+  def withKind(kind: Int): OutputPathItem = {
+    copy(kind = kind)
+  }
+}
+object OutputPathItem {
+  
+  def apply(uri: java.net.URI, kind: Int): OutputPathItem = new OutputPathItem(uri, kind)
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsItem.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsItem.scala
new file mode 100644
index 000000000..f101d7555
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsItem.scala
@@ -0,0 +1,36 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp
+final class OutputPathsItem private (
+  val target: sbt.internal.bsp.BuildTargetIdentifier,
+  val outputPaths: Vector[sbt.internal.bsp.OutputPathItem]) extends Serializable {
+  
+  
+  
+  override def equals(o: Any): Boolean = this.eq(o.asInstanceOf[AnyRef]) || (o match {
+    case x: OutputPathsItem => (this.target == x.target) && (this.outputPaths == x.outputPaths)
+    case _ => false
+  })
+  override def hashCode: Int = {
+    37 * (37 * (37 * (17 + "sbt.internal.bsp.OutputPathsItem".##) + target.##) + outputPaths.##)
+  }
+  override def toString: String = {
+    "OutputPathsItem(" + target + ", " + outputPaths + ")"
+  }
+  private[this] def copy(target: sbt.internal.bsp.BuildTargetIdentifier = target, outputPaths: Vector[sbt.internal.bsp.OutputPathItem] = outputPaths): OutputPathsItem = {
+    new OutputPathsItem(target, outputPaths)
+  }
+  def withTarget(target: sbt.internal.bsp.BuildTargetIdentifier): OutputPathsItem = {
+    copy(target = target)
+  }
+  def withOutputPaths(outputPaths: Vector[sbt.internal.bsp.OutputPathItem]): OutputPathsItem = {
+    copy(outputPaths = outputPaths)
+  }
+}
+object OutputPathsItem {
+  
+  def apply(target: sbt.internal.bsp.BuildTargetIdentifier, outputPaths: Vector[sbt.internal.bsp.OutputPathItem]): OutputPathsItem = new OutputPathsItem(target, outputPaths)
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsParams.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsParams.scala
new file mode 100644
index 000000000..4a1d97c43
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsParams.scala
@@ -0,0 +1,33 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp
+/** Build Target OutputPaths Request */
+final class OutputPathsParams private (
+  val targets: Vector[sbt.internal.bsp.BuildTargetIdentifier]) extends Serializable {
+  
+  
+  
+  override def equals(o: Any): Boolean = this.eq(o.asInstanceOf[AnyRef]) || (o match {
+    case x: OutputPathsParams => (this.targets == x.targets)
+    case _ => false
+  })
+  override def hashCode: Int = {
+    37 * (37 * (17 + "sbt.internal.bsp.OutputPathsParams".##) + targets.##)
+  }
+  override def toString: String = {
+    "OutputPathsParams(" + targets + ")"
+  }
+  private[this] def copy(targets: Vector[sbt.internal.bsp.BuildTargetIdentifier] = targets): OutputPathsParams = {
+    new OutputPathsParams(targets)
+  }
+  def withTargets(targets: Vector[sbt.internal.bsp.BuildTargetIdentifier]): OutputPathsParams = {
+    copy(targets = targets)
+  }
+}
+object OutputPathsParams {
+  
+  def apply(targets: Vector[sbt.internal.bsp.BuildTargetIdentifier]): OutputPathsParams = new OutputPathsParams(targets)
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsResult.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsResult.scala
new file mode 100644
index 000000000..50e2062bd
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/OutputPathsResult.scala
@@ -0,0 +1,33 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp
+/** Build Target OutputPaths response */
+final class OutputPathsResult private (
+  val items: Vector[sbt.internal.bsp.OutputPathsItem]) extends Serializable {
+  
+  
+  
+  override def equals(o: Any): Boolean = this.eq(o.asInstanceOf[AnyRef]) || (o match {
+    case x: OutputPathsResult => (this.items == x.items)
+    case _ => false
+  })
+  override def hashCode: Int = {
+    37 * (37 * (17 + "sbt.internal.bsp.OutputPathsResult".##) + items.##)
+  }
+  override def toString: String = {
+    "OutputPathsResult(" + items + ")"
+  }
+  private[this] def copy(items: Vector[sbt.internal.bsp.OutputPathsItem] = items): OutputPathsResult = {
+    new OutputPathsResult(items)
+  }
+  def withItems(items: Vector[sbt.internal.bsp.OutputPathsItem]): OutputPathsResult = {
+    copy(items = items)
+  }
+}
+object OutputPathsResult {
+  
+  def apply(items: Vector[sbt.internal.bsp.OutputPathsItem]): OutputPathsResult = new OutputPathsResult(items)
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/BuildServerCapabilitiesFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/BuildServerCapabilitiesFormats.scala
index c23b3db80..9c8684ba3 100644
--- a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/BuildServerCapabilitiesFormats.scala
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/BuildServerCapabilitiesFormats.scala
@@ -16,11 +16,12 @@ implicit lazy val BuildServerCapabilitiesFormat: JsonFormat[sbt.internal.bsp.Bui
       val runProvider = unbuilder.readField[Option[sbt.internal.bsp.RunProvider]]("runProvider")
       val dependencySourcesProvider = unbuilder.readField[Option[Boolean]]("dependencySourcesProvider")
       val resourcesProvider = unbuilder.readField[Option[Boolean]]("resourcesProvider")
+      val outputPathsProvider = unbuilder.readField[Option[Boolean]]("outputPathsProvider")
       val canReload = unbuilder.readField[Option[Boolean]]("canReload")
       val jvmRunEnvironmentProvider = unbuilder.readField[Option[Boolean]]("jvmRunEnvironmentProvider")
       val jvmTestEnvironmentProvider = unbuilder.readField[Option[Boolean]]("jvmTestEnvironmentProvider")
       unbuilder.endObject()
-      sbt.internal.bsp.BuildServerCapabilities(compileProvider, testProvider, runProvider, dependencySourcesProvider, resourcesProvider, canReload, jvmRunEnvironmentProvider, jvmTestEnvironmentProvider)
+      sbt.internal.bsp.BuildServerCapabilities(compileProvider, testProvider, runProvider, dependencySourcesProvider, resourcesProvider, outputPathsProvider, canReload, jvmRunEnvironmentProvider, jvmTestEnvironmentProvider)
       case None =>
       deserializationError("Expected JsObject but found None")
     }
@@ -32,6 +33,7 @@ implicit lazy val BuildServerCapabilitiesFormat: JsonFormat[sbt.internal.bsp.Bui
     builder.addField("runProvider", obj.runProvider)
     builder.addField("dependencySourcesProvider", obj.dependencySourcesProvider)
     builder.addField("resourcesProvider", obj.resourcesProvider)
+    builder.addField("outputPathsProvider", obj.outputPathsProvider)
     builder.addField("canReload", obj.canReload)
     builder.addField("jvmRunEnvironmentProvider", obj.jvmRunEnvironmentProvider)
     builder.addField("jvmTestEnvironmentProvider", obj.jvmTestEnvironmentProvider)
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludeItemFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludeItemFormats.scala
new file mode 100644
index 000000000..6e65b8630
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludeItemFormats.scala
@@ -0,0 +1,29 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait ExcludeItemFormats { self: sjsonnew.BasicJsonProtocol =>
+implicit lazy val ExcludeItemFormat: JsonFormat[sbt.internal.bsp.ExcludeItem] = new JsonFormat[sbt.internal.bsp.ExcludeItem] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.ExcludeItem = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val uri = unbuilder.readField[java.net.URI]("uri")
+      val kind = unbuilder.readField[Int]("kind")
+      unbuilder.endObject()
+      sbt.internal.bsp.ExcludeItem(uri, kind)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.ExcludeItem, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("uri", obj.uri)
+    builder.addField("kind", obj.kind)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesItemFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesItemFormats.scala
new file mode 100644
index 000000000..cc324552f
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesItemFormats.scala
@@ -0,0 +1,29 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait ExcludesItemFormats { self: sbt.internal.bsp.codec.BuildTargetIdentifierFormats with sbt.internal.bsp.codec.ExcludeItemFormats with sjsonnew.BasicJsonProtocol =>
+implicit lazy val ExcludesItemFormat: JsonFormat[sbt.internal.bsp.ExcludesItem] = new JsonFormat[sbt.internal.bsp.ExcludesItem] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.ExcludesItem = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val target = unbuilder.readField[sbt.internal.bsp.BuildTargetIdentifier]("target")
+      val excludes = unbuilder.readField[Vector[sbt.internal.bsp.ExcludeItem]]("excludes")
+      unbuilder.endObject()
+      sbt.internal.bsp.ExcludesItem(target, excludes)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.ExcludesItem, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("target", obj.target)
+    builder.addField("excludes", obj.excludes)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesParamsFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesParamsFormats.scala
new file mode 100644
index 000000000..f43a536c3
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesParamsFormats.scala
@@ -0,0 +1,27 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait ExcludesParamsFormats { self: sbt.internal.bsp.codec.BuildTargetIdentifierFormats with sjsonnew.BasicJsonProtocol =>
+implicit lazy val ExcludesParamsFormat: JsonFormat[sbt.internal.bsp.ExcludesParams] = new JsonFormat[sbt.internal.bsp.ExcludesParams] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.ExcludesParams = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val targets = unbuilder.readField[Vector[sbt.internal.bsp.BuildTargetIdentifier]]("targets")
+      unbuilder.endObject()
+      sbt.internal.bsp.ExcludesParams(targets)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.ExcludesParams, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("targets", obj.targets)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesResultFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesResultFormats.scala
new file mode 100644
index 000000000..a167af41e
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/ExcludesResultFormats.scala
@@ -0,0 +1,27 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait ExcludesResultFormats { self: sbt.internal.bsp.codec.ExcludesItemFormats with sjsonnew.BasicJsonProtocol =>
+implicit lazy val ExcludesResultFormat: JsonFormat[sbt.internal.bsp.ExcludesResult] = new JsonFormat[sbt.internal.bsp.ExcludesResult] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.ExcludesResult = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val items = unbuilder.readField[Vector[sbt.internal.bsp.ExcludesItem]]("items")
+      unbuilder.endObject()
+      sbt.internal.bsp.ExcludesResult(items)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.ExcludesResult, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("items", obj.items)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/JsonProtocol.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/JsonProtocol.scala
index 7d26ae037..5c087e4b4 100644
--- a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/JsonProtocol.scala
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/JsonProtocol.scala
@@ -29,6 +29,10 @@ trait JsonProtocol extends sjsonnew.BasicJsonProtocol
   with sbt.internal.bsp.codec.SourceItemFormats
   with sbt.internal.bsp.codec.SourcesItemFormats
   with sbt.internal.bsp.codec.SourcesResultFormats
+  with sbt.internal.bsp.codec.OutputPathsParamsFormats
+  with sbt.internal.bsp.codec.OutputPathItemFormats
+  with sbt.internal.bsp.codec.OutputPathsItemFormats
+  with sbt.internal.bsp.codec.OutputPathsResultFormats
   with sbt.internal.bsp.codec.DependencySourcesParamsFormats
   with sbt.internal.bsp.codec.DependencySourcesItemFormats
   with sbt.internal.bsp.codec.DependencySourcesResultFormats
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathItemFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathItemFormats.scala
new file mode 100644
index 000000000..e9eba8f0e
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathItemFormats.scala
@@ -0,0 +1,29 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait OutputPathItemFormats { self: sjsonnew.BasicJsonProtocol =>
+implicit lazy val OutputPathItemFormat: JsonFormat[sbt.internal.bsp.OutputPathItem] = new JsonFormat[sbt.internal.bsp.OutputPathItem] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.OutputPathItem = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val uri = unbuilder.readField[java.net.URI]("uri")
+      val kind = unbuilder.readField[Int]("kind")
+      unbuilder.endObject()
+      sbt.internal.bsp.OutputPathItem(uri, kind)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.OutputPathItem, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("uri", obj.uri)
+    builder.addField("kind", obj.kind)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsItemFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsItemFormats.scala
new file mode 100644
index 000000000..f3c0795ee
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsItemFormats.scala
@@ -0,0 +1,29 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait OutputPathsItemFormats { self: sbt.internal.bsp.codec.BuildTargetIdentifierFormats with sbt.internal.bsp.codec.OutputPathItemFormats with sjsonnew.BasicJsonProtocol =>
+implicit lazy val OutputPathsItemFormat: JsonFormat[sbt.internal.bsp.OutputPathsItem] = new JsonFormat[sbt.internal.bsp.OutputPathsItem] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.OutputPathsItem = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val target = unbuilder.readField[sbt.internal.bsp.BuildTargetIdentifier]("target")
+      val outputPaths = unbuilder.readField[Vector[sbt.internal.bsp.OutputPathItem]]("outputPaths")
+      unbuilder.endObject()
+      sbt.internal.bsp.OutputPathsItem(target, outputPaths)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.OutputPathsItem, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("target", obj.target)
+    builder.addField("outputPaths", obj.outputPaths)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsParamsFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsParamsFormats.scala
new file mode 100644
index 000000000..b984eeeb2
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsParamsFormats.scala
@@ -0,0 +1,27 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait OutputPathsParamsFormats { self: sbt.internal.bsp.codec.BuildTargetIdentifierFormats with sjsonnew.BasicJsonProtocol =>
+implicit lazy val OutputPathsParamsFormat: JsonFormat[sbt.internal.bsp.OutputPathsParams] = new JsonFormat[sbt.internal.bsp.OutputPathsParams] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.OutputPathsParams = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val targets = unbuilder.readField[Vector[sbt.internal.bsp.BuildTargetIdentifier]]("targets")
+      unbuilder.endObject()
+      sbt.internal.bsp.OutputPathsParams(targets)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.OutputPathsParams, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("targets", obj.targets)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsResultFormats.scala b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsResultFormats.scala
new file mode 100644
index 000000000..0aa475097
--- /dev/null
+++ b/protocol/src/main/contraband-scala/sbt/internal/bsp/codec/OutputPathsResultFormats.scala
@@ -0,0 +1,27 @@
+/**
+ * This code is generated using [[https://www.scala-sbt.org/contraband/ sbt-contraband]].
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.internal.bsp.codec
+import _root_.sjsonnew.{ Unbuilder, Builder, JsonFormat, deserializationError }
+trait OutputPathsResultFormats { self: sbt.internal.bsp.codec.OutputPathsItemFormats with sjsonnew.BasicJsonProtocol =>
+implicit lazy val OutputPathsResultFormat: JsonFormat[sbt.internal.bsp.OutputPathsResult] = new JsonFormat[sbt.internal.bsp.OutputPathsResult] {
+  override def read[J](__jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.internal.bsp.OutputPathsResult = {
+    __jsOpt match {
+      case Some(__js) =>
+      unbuilder.beginObject(__js)
+      val items = unbuilder.readField[Vector[sbt.internal.bsp.OutputPathsItem]]("items")
+      unbuilder.endObject()
+      sbt.internal.bsp.OutputPathsResult(items)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.internal.bsp.OutputPathsResult, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("items", obj.items)
+    builder.endObject()
+  }
+}
+}
diff --git a/protocol/src/main/contraband/bsp.contra b/protocol/src/main/contraband/bsp.contra
index 79734b10f..d5f0beec5 100644
--- a/protocol/src/main/contraband/bsp.contra
+++ b/protocol/src/main/contraband/bsp.contra
@@ -202,6 +202,10 @@ type BuildServerCapabilities {
   # via method buildTarget/resources
   resourcesProvider: Boolean
 
+  # The server provides output paths
+  # via method buildTarget/outputPaths
+  outputPathsProvider: Boolean
+
   ## Reloading the workspace state through workspace/reload is supported
   canReload: Boolean
 
@@ -290,6 +294,26 @@ type SourceItem {
   generated: Boolean!
 }
 
+## Build Target OutputPaths Request
+type OutputPathsParams {
+  targets: [sbt.internal.bsp.BuildTargetIdentifier]
+}
+
+## Build Target OutputPaths response
+type OutputPathsResult {
+  items: [sbt.internal.bsp.OutputPathsItem]
+}
+
+type OutputPathsItem {
+  target: sbt.internal.bsp.BuildTargetIdentifier!
+  outputPaths: [sbt.internal.bsp.OutputPathItem]
+}
+
+type OutputPathItem {
+  uri: java.net.URI!
+  kind: Int!
+}
+
 ## Dependency Sources Request
 type DependencySourcesParams {
   targets: [sbt.internal.bsp.BuildTargetIdentifier]
diff --git a/protocol/src/main/scala/sbt/internal/bsp/BuildServerConnection.scala b/protocol/src/main/scala/sbt/internal/bsp/BuildServerConnection.scala
index fa7fce354..bdc850cd2 100644
--- a/protocol/src/main/scala/sbt/internal/bsp/BuildServerConnection.scala
+++ b/protocol/src/main/scala/sbt/internal/bsp/BuildServerConnection.scala
@@ -17,7 +17,7 @@ import scala.util.Properties
 
 object BuildServerConnection {
   final val name = "sbt"
-  final val bspVersion = "2.0.0-M5"
+  final val bspVersion = "2.1.0-M1"
   final val languages = Vector("scala")
 
   private final val SbtLaunchJar = "sbt-launch(-.*)?\\.jar".r
diff --git a/protocol/src/main/scala/sbt/internal/bsp/OutputPathItemKind.scala b/protocol/src/main/scala/sbt/internal/bsp/OutputPathItemKind.scala
new file mode 100644
index 000000000..aaee48e65
--- /dev/null
+++ b/protocol/src/main/scala/sbt/internal/bsp/OutputPathItemKind.scala
@@ -0,0 +1,17 @@
+/*
+ * sbt
+ * Copyright 2011 - 2018, Lightbend, Inc.
+ * Copyright 2008 - 2010, Mark Harrah
+ * Licensed under Apache License 2.0 (see LICENSE)
+ */
+
+package sbt.internal.bsp
+
+object OutputPathItemKind {
+
+  /** The output path item references a normal file.  */
+  val File: Int = 1
+
+  /** The output path item references a directory. */
+  val Directory: Int = 2
+}
diff --git a/sbt b/sbt
index 19505a818..64ec35381 100755
--- a/sbt
+++ b/sbt
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 set +e
-declare builtin_sbt_version="1.6.2"
+declare builtin_sbt_version="1.7.1"
 declare -a residual_args
 declare -a java_args
 declare -a scalac_args
@@ -24,7 +24,7 @@ declare build_props_sbt_version=
 declare use_sbtn=
 declare no_server=
 declare sbtn_command="$SBTN_CMD"
-declare sbtn_version="1.4.7"
+declare sbtn_version="1.7.0"
 
 ###  ------------------------------- ###
 ###  Helper methods for BASH scripts ###
diff --git a/sbt-app/src/sbt-test/actions/cross-multiproject/test b/sbt-app/src/sbt-test/actions/cross-multiproject/test
index baf4db9b8..b464e9cb3 100644
--- a/sbt-app/src/sbt-test/actions/cross-multiproject/test
+++ b/sbt-app/src/sbt-test/actions/cross-multiproject/test
@@ -52,7 +52,7 @@ $ exists sbt-foo/target/scala-2.12
 
 # test wildcard switching (2.13)
 > clean
-> ++ 2.13.* -v compile
+> ++ 2.13.x -v compile
 $ exists lib/target/scala-2.13
 -$ exists lib/target/scala-2.12
 # -$ exists sbt-foo/target/scala-2.12
diff --git a/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/build.sbt b/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/build.sbt
new file mode 100644
index 000000000..d5cf2f898
--- /dev/null
+++ b/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/build.sbt
@@ -0,0 +1,14 @@
+scalaVersion := "2.12.16"
+
+lazy val core = project
+  .settings(
+    crossScalaVersions := Seq("2.12.16", "3.0.2", "3.1.2")
+  )
+
+lazy val subproj = project
+  .dependsOn(core)
+  .settings(
+    crossScalaVersions := Seq("2.12.16", "3.1.2"),
+    // a random library compiled against Scala 3.1
+    libraryDependencies += "org.http4s" %% "http4s-core" % "0.23.12"
+  )
diff --git a/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/subproj/src/main/scala/A.scala b/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/subproj/src/main/scala/A.scala
new file mode 100644
index 000000000..da95b9fc4
--- /dev/null
+++ b/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/subproj/src/main/scala/A.scala
@@ -0,0 +1,6 @@
+import org.http4s.Uri
+
+object A {
+  // Just using something from http4s 
+  Uri.fromString("example.com")
+}
diff --git a/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/test b/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/test
new file mode 100644
index 000000000..ea7afbf93
--- /dev/null
+++ b/sbt-app/src/sbt-test/actions/cross-strict-aggregation-scala-3/test
@@ -0,0 +1,14 @@
+> ++3.0.2 compile
+
+$ exists core/target/scala-3.0.2
+-$ exists core/target/scala-3.1.2
+-$ exists subproj/target/scala-3.0.2
+-$ exists subproj/target/scala-3.1.2
+
+> clean
+> ++3.1.2 compile
+
+-$ exists core/target/scala-3.0.2
+$ exists core/target/scala-3.1.2
+-$ exists subproj/target/scala-3.0.2
+$ exists subproj/target/scala-3.1.2
diff --git a/sbt-app/src/sbt-test/actions/cross-strict-aggregation/build.sbt b/sbt-app/src/sbt-test/actions/cross-strict-aggregation/build.sbt
index b7cb3b5c2..1ffbc3b59 100644
--- a/sbt-app/src/sbt-test/actions/cross-strict-aggregation/build.sbt
+++ b/sbt-app/src/sbt-test/actions/cross-strict-aggregation/build.sbt
@@ -1,4 +1,4 @@
-lazy val scala212 = "2.12.12"
+lazy val scala212 = "2.12.16"
 lazy val scala213 = "2.13.1"
 
 ThisBuild / scalaVersion := scala212
diff --git a/sbt-app/src/sbt-test/actions/cross-strict-aggregation/test b/sbt-app/src/sbt-test/actions/cross-strict-aggregation/test
index 8767e4e22..996094f8e 100644
--- a/sbt-app/src/sbt-test/actions/cross-strict-aggregation/test
+++ b/sbt-app/src/sbt-test/actions/cross-strict-aggregation/test
@@ -1,5 +1,7 @@
 -> ++2.12.0-magic
 
+-> ++2.12.12
+
 > ++2.13.1 compile
 
 $ exists core/target/scala-2.13
diff --git a/sbt-app/src/sbt-test/actions/eval-is-safe-and-sound/disabled b/sbt-app/src/sbt-test/actions/eval-is-safe-and-sound/test
similarity index 100%
rename from sbt-app/src/sbt-test/actions/eval-is-safe-and-sound/disabled
rename to sbt-app/src/sbt-test/actions/eval-is-safe-and-sound/test
diff --git a/sbt-app/src/sbt-test/dependency-management/dynamic-revision/disabled b/sbt-app/src/sbt-test/dependency-management/dynamic-revision/test
similarity index 100%
rename from sbt-app/src/sbt-test/dependency-management/dynamic-revision/disabled
rename to sbt-app/src/sbt-test/dependency-management/dynamic-revision/test
diff --git a/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/build.sbt b/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/build.sbt
index 8aabedac8..8da13c7ec 100644
--- a/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/build.sbt
+++ b/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/build.sbt
@@ -1,4 +1,4 @@
-ThisBuild / scalaVersion := "3.0.0-M1"
+ThisBuild / scalaVersion := "3.1.3"
 
 lazy val plugin = project
   .in(file("plugin"))
@@ -12,7 +12,7 @@ lazy val plugin = project
     ),
 
     libraryDependencies ++= Seq(
-      "ch.epfl.lamp" %% "dotty-compiler" % scalaVersion.value % "provided"
+      "org.scala-lang" %% "scala3-compiler" % scalaVersion.value % "provided"
     )
   )
 
diff --git a/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/changes/build.sbt b/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/changes/build.sbt
index 584adf234..3c716e1bb 100644
--- a/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/changes/build.sbt
+++ b/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/changes/build.sbt
@@ -1,4 +1,4 @@
-lazy val dottyVersion = "3.0.0-M1"
+lazy val dottyVersion = "3.1.3"
 
 lazy val plugin = project
   .in(file("plugin"))
@@ -7,10 +7,6 @@ lazy val plugin = project
     version := "0.0.1",
     organization := "ch.epfl.lamp",
     scalaVersion := dottyVersion,
-
-    libraryDependencies ++= Seq(
-      "ch.epfl.lamp" %% "dotty" % scalaVersion.value % "provided"
-    )
   )
 
 lazy val app = project
diff --git a/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/project/plugins.sbt b/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/project/plugins.sbt
deleted file mode 100644
index 83a3da10f..000000000
--- a/sbt-app/src/sbt-test/plugins/dotty-compiler-plugin/project/plugins.sbt
+++ /dev/null
@@ -1 +0,0 @@
-addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.6")
diff --git a/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/build.sbt b/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/build.sbt
index 9e2883f48..f28325922 100644
--- a/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/build.sbt
+++ b/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/build.sbt
@@ -1,15 +1,15 @@
-ThisBuild / scalaVersion := "2.13.4"
+ThisBuild / scalaVersion := "2.13.8"
 ThisBuild / scalacOptions += "-Ytasty-reader"
 
 lazy val scala3code = project
   .enablePlugins(ScalaJSPlugin)
-  .settings(scalaVersion := "3.0.0-M1")
+  .settings(scalaVersion := "3.1.3")
 
 lazy val app = project
   .enablePlugins(ScalaJSPlugin)
   .dependsOn(scala3code)
   .settings(
     libraryDependencies ~= (_.filterNot(_.name.contains("scalajs-compiler"))),
-    addCompilerPlugin("org.scala-js" % "scalajs-compiler_2.13.4" % scalaJSVersion),
+    addCompilerPlugin("org.scala-js" % "scalajs-compiler_2.13.8" % scalaJSVersion),
     scalaJSUseMainModuleInitializer := true,
   )
diff --git a/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/project/plugins.sbt b/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/project/plugins.sbt
index f0dfae12d..4c620dc0a 100644
--- a/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/project/plugins.sbt
+++ b/sbt-app/src/sbt-test/plugins/dotty-sandwich-sjs/project/plugins.sbt
@@ -1,2 +1 @@
-addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.6")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.3.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.10.1")
diff --git a/sbt-app/src/sbt-test/plugins/dotty-sandwich/build.sbt b/sbt-app/src/sbt-test/plugins/dotty-sandwich/build.sbt
index d6b4a9a34..fe7f9dd1f 100644
--- a/sbt-app/src/sbt-test/plugins/dotty-sandwich/build.sbt
+++ b/sbt-app/src/sbt-test/plugins/dotty-sandwich/build.sbt
@@ -1,7 +1,7 @@
-ThisBuild / scalaVersion := "3.0.0-M1"
+ThisBuild / scalaVersion := "3.1.3"
 ThisBuild / scalacOptions += "-Ytasty-reader"
 
-lazy val scala213 = "2.13.4"
+lazy val scala213 = "2.13.8"
 
 lazy val root = (project in file("."))
   .aggregate(fooApp, fooCore, barApp, barCore)
diff --git a/sbt-app/src/sbt-test/plugins/dotty-sandwich/project/plugins.sbt b/sbt-app/src/sbt-test/plugins/dotty-sandwich/project/plugins.sbt
deleted file mode 100644
index 83a3da10f..000000000
--- a/sbt-app/src/sbt-test/plugins/dotty-sandwich/project/plugins.sbt
+++ /dev/null
@@ -1 +0,0 @@
-addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.6")
diff --git a/sbt-app/src/sbt-test/plugins/dotty/build.sbt b/sbt-app/src/sbt-test/plugins/dotty/build.sbt
index e80bfb07c..e46913668 100644
--- a/sbt-app/src/sbt-test/plugins/dotty/build.sbt
+++ b/sbt-app/src/sbt-test/plugins/dotty/build.sbt
@@ -1 +1 @@
-ThisBuild / scalaVersion := "3.0.0-M1"
+ThisBuild / scalaVersion := "3.1.3"
diff --git a/sbt-app/src/sbt-test/plugins/dotty/project/build.properties b/sbt-app/src/sbt-test/plugins/dotty/project/build.properties
deleted file mode 100644
index 16dc090c5..000000000
--- a/sbt-app/src/sbt-test/plugins/dotty/project/build.properties
+++ /dev/null
@@ -1,3 +0,0 @@
-# sbt-coursier scripted tests: required, as we default to sbt 1.0.3,
-# but sbt-dotty requires sbt >= 1.2.7
-sbt.version=1.2.7
diff --git a/sbt-app/src/sbt-test/plugins/dotty/project/plugins.sbt b/sbt-app/src/sbt-test/plugins/dotty/project/plugins.sbt
deleted file mode 100644
index 83a3da10f..000000000
--- a/sbt-app/src/sbt-test/plugins/dotty/project/plugins.sbt
+++ /dev/null
@@ -1 +0,0 @@
-addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.6")
diff --git a/sbt-app/src/sbt-test/project/source-plugins/build.sbt b/sbt-app/src/sbt-test/project/source-plugins/build.sbt
index 0b5906837..c9d463090 100644
--- a/sbt-app/src/sbt-test/project/source-plugins/build.sbt
+++ b/sbt-app/src/sbt-test/project/source-plugins/build.sbt
@@ -2,6 +2,6 @@ name := "source-plugins"
 
 organization := "org.example"
 
-proguardSettings
+enablePlugins(SbtProguard)
 
 useJGit
diff --git a/sbt-app/src/sbt-test/project/source-plugins/project/plugin.sbt b/sbt-app/src/sbt-test/project/source-plugins/project/plugin.sbt
index 381215651..e5a6a1f84 100644
--- a/sbt-app/src/sbt-test/project/source-plugins/project/plugin.sbt
+++ b/sbt-app/src/sbt-test/project/source-plugins/project/plugin.sbt
@@ -1,5 +1,5 @@
-lazy val proguard = uri("git://github.com/sbt/sbt-proguard.git#e7b4732969c137db1b5")
-lazy val git = uri("git://github.com/sbt/sbt-git.git#2e7c2503850698d60bb")
+lazy val proguard = RootProject(uri("https://github.com/sbt/sbt-proguard.git#95b27788a5b00ab89e8ae7c05ef5bfe538129280"))
+lazy val git = RootProject(uri("https://github.com/sbt/sbt-git.git#a81a110af1c5693cd3fd0204248f5c529a43a112"))
 
 lazy val root = (project in file(".")).
   dependsOn(proguard, git)
diff --git a/sbt-app/src/sbt-test/project/source-plugins/project/plugins.sbt b/sbt-app/src/sbt-test/project/source-plugins/project/plugins.sbt
deleted file mode 100644
index 6dc6ae42e..000000000
--- a/sbt-app/src/sbt-test/project/source-plugins/project/plugins.sbt
+++ /dev/null
@@ -1,7 +0,0 @@
-lazy val plugins = (project in file("."))
-  .dependsOn(proguard, git)
-
-// e7b4732969c137db1b5
-// d4974f7362bf55d3f52
-lazy val proguard = uri("git://github.com/sbt/sbt-proguard.git#e7b4732969c137db1b5")
-lazy val git = uri("git://github.com/sbt/sbt-git.git#2e7c2503850698d60bb")
diff --git a/sbt-app/src/sbt-test/project/source-plugins/pending b/sbt-app/src/sbt-test/project/source-plugins/test
similarity index 100%
rename from sbt-app/src/sbt-test/project/source-plugins/pending
rename to sbt-app/src/sbt-test/project/source-plugins/test
diff --git a/sbt-app/src/sbt-test/source-dependencies/repeated-parameters/disabled b/sbt-app/src/sbt-test/source-dependencies/repeated-parameters/test
similarity index 100%
rename from sbt-app/src/sbt-test/source-dependencies/repeated-parameters/disabled
rename to sbt-app/src/sbt-test/source-dependencies/repeated-parameters/test
diff --git a/sbt-app/src/sbt-test/tests/fork-test-group-parallel/disabled b/sbt-app/src/sbt-test/tests/fork-test-group-parallel/test
similarity index 100%
rename from sbt-app/src/sbt-test/tests/fork-test-group-parallel/disabled
rename to sbt-app/src/sbt-test/tests/fork-test-group-parallel/test
diff --git a/sbt-app/src/sbt-test/tests/t543/disabled b/sbt-app/src/sbt-test/tests/t543/test
similarity index 100%
rename from sbt-app/src/sbt-test/tests/t543/disabled
rename to sbt-app/src/sbt-test/tests/t543/test
diff --git a/server-test/src/server-test/buildserver/build.sbt b/server-test/src/server-test/buildserver/build.sbt
index fe2cf4db5..e41e0192b 100644
--- a/server-test/src/server-test/buildserver/build.sbt
+++ b/server-test/src/server-test/buildserver/build.sbt
@@ -30,7 +30,9 @@ lazy val respondError = project.in(file("respond-error"))
     }
   )
 
-lazy val util = project
+lazy val util = project.settings(
+  Compile / target := baseDirectory.value / "custom-target",
+)
 
 lazy val diagnostics = project
 
@@ -44,6 +46,7 @@ lazy val badBuildTarget = project.in(file("bad-build-target"))
     Compile / bspBuildTargetDependencySourcesItem := somethingBad,
     Compile / bspBuildTargetScalacOptionsItem := somethingBad,
     Compile / bspBuildTargetCompileItem := somethingBad,
+    Compile / bspBuildTargetOutputPathsItem := somethingBad,
     Compile / bspScalaMainClasses := somethingBad,
     Test / bspBuildTarget := somethingBad,
     Test / bspScalaTestClasses := somethingBad,
diff --git a/server-test/src/test/scala/testpkg/BuildServerTest.scala b/server-test/src/test/scala/testpkg/BuildServerTest.scala
index 1b8fd06fb..5765e1649 100644
--- a/server-test/src/test/scala/testpkg/BuildServerTest.scala
+++ b/server-test/src/test/scala/testpkg/BuildServerTest.scala
@@ -31,7 +31,8 @@ object BuildServerTest extends AbstractServerTest {
     initializeRequest()
     assert(svr.waitForString(10.seconds) { s =>
       (s contains """"id":"8"""") &&
-      (s contains """"resourcesProvider":true""")
+      (s contains """"resourcesProvider":true""") &&
+      (s contains """"outputPathsProvider":true""")
     })
   }
 
@@ -412,7 +413,7 @@ object BuildServerTest extends AbstractServerTest {
         (s contains "jsoniter-scala-core_2.13-2.13.11.jar") && // compile dependency
         (s contains "\"jvmOptions\":[\"Xmx256M\"]") &&
         (s contains "\"environmentVariables\":{\"KEY\":\"VALUE\"}") &&
-        (s contains "/buildserver/run-and-test/") // working directory
+        (s contains s""""workingDirectory":"${svr.baseDirectory.getAbsolutePath}/run-and-test"""")
       }
     }
   }
@@ -434,7 +435,8 @@ object BuildServerTest extends AbstractServerTest {
         (s contains "jsoniter-scala-core_2.13-2.13.11.jar") && // compile dependency
         (s contains "scalatest_2.13-3.0.8.jar") && // test dependency
         (s contains "\"jvmOptions\":[\"Xmx512M\"]") &&
-        (s contains "\"environmentVariables\":{\"KEY_TEST\":\"VALUE_TEST\"}")
+        (s contains "\"environmentVariables\":{\"KEY_TEST\":\"VALUE_TEST\"}") &&
+        (s contains s""""workingDirectory":"${svr.baseDirectory.getAbsolutePath}/run-and-test"""")
       }
     }
   }
@@ -538,13 +540,39 @@ object BuildServerTest extends AbstractServerTest {
     })
   }
 
+  test("buildTarget/outputPaths") { _ =>
+    val buildTarget = buildTargetUri("util", "Compile")
+    val badBuildTarget = buildTargetUri("badBuildTarget", "Compile")
+    svr.sendJsonRpc(
+      s"""{ "jsonrpc": "2.0", "id": "97", "method": "buildTarget/outputPaths", "params": {
+         |  "targets": [{ "uri": "$buildTarget" }, { "uri": "$badBuildTarget" }]
+         |} }""".stripMargin
+    )
+    assert(processing("buildTarget/outputPaths"))
+    val actualResult = svr.waitFor[OutputPathsResult](10.seconds)
+    val expectedResult = OutputPathsResult(
+      items = Vector(
+        OutputPathsItem(
+          target = BuildTargetIdentifier(buildTarget),
+          outputPaths = Vector(
+            OutputPathItem(
+              uri = new File(svr.baseDirectory, "util/custom-target").toURI,
+              kind = OutputPathItemKind.Directory
+            )
+          )
+        )
+      )
+    )
+    assert(actualResult == expectedResult)
+  }
+
   private def initializeRequest(): Unit = {
     svr.sendJsonRpc(
       """{ "jsonrpc": "2.0", "id": "8", "method": "build/initialize",
         |  "params": {
         |    "displayName": "test client",
         |    "version": "1.0.0",
-        |    "bspVersion": "2.0.0-M5",
+        |    "bspVersion": "2.1.0-M1",
         |    "rootUri": "file://root/",
         |    "capabilities": { "languageIds": ["scala"] }
         |  }