Bump lm, use release notes key

main/src/main/scala/sbt/Defaults.scala

@@ -3347,7 +3347,7 @@ object Classpaths {
     }
     val p3 = releaseNotesURL.value match {
       case Some(u) =>
-        p2.extra("info.releaseNotesUrl" -> u.toExternalForm)
+        p2.extra(SbtPomExtraProperties.POM_RELEASE_NOTES_KEY -> u.toExternalForm)
       case _ => p2
     }
     p3

main/src/main/scala/sbt/coursierint/CoursierInputsTasks.scala

@@ -45,6 +45,7 @@ object CoursierInputsTasks {
       sv: String,
       sbv: String,
       auOpt: Option[URL],
+      rnOpt: Option[URL],
       description: String,
       homepage: Option[URL],
       vsOpt: Option[String],
@@ -70,8 +71,15 @@ object CoursierInputsTasks {
         proj1.withProperties(proj1.properties :+ (SbtPomExtraProperties.VERSION_SCHEME_KEY -> vs))
       case _ => proj1
     }
-    proj2.withInfo(
-      proj2.info.withDescription(description).withHomePage(homepage.fold("")(_.toString))
+    val proj3 = rnOpt match {
+      case Some(rn) =>
+        proj2.withProperties(
+          proj2.properties :+ (SbtPomExtraProperties.POM_RELEASE_NOTES_KEY -> rn.toString)
+        )
+      case _ => proj2
+    }
+    proj3.withInfo(
+      proj3.info.withDescription(description).withHomePage(homepage.fold("")(_.toString))
     )
   }
 
@@ -84,6 +92,7 @@ object CoursierInputsTasks {
         scalaVersion.value,
         scalaBinaryVersion.value,
         apiURL.value,
+        releaseNotesURL.value,
         description.value,
         homepage.value,
         versionScheme.value,

project/Dependencies.scala

@@ -14,7 +14,7 @@ object Dependencies {
   // sbt modules
   private val ioVersion = nightlyVersion.getOrElse("1.8.0")
   private val lmVersion =
-    sys.props.get("sbt.build.lm.version").orElse(nightlyVersion).getOrElse("1.8.0")
+    sys.props.get("sbt.build.lm.version").orElse(nightlyVersion).getOrElse("1.9.0-M1")
   val zincVersion = nightlyVersion.getOrElse("1.8.0")
 
   private val sbtIO = "org.scala-sbt" %% "io" % ioVersion