Follow up on Scala 2.12.15 bump

.github/workflows/ci.yml

@@ -40,7 +40,7 @@ jobs:
     env:
       JAVA_OPTS: -Xms800M -Xmx2G -Xss6M -XX:ReservedCodeCacheSize=128M -server -Dsbt.io.virtual=false -Dfile.encoding=UTF-8
       JVM_OPTS: -Xms800M -Xmx2G -Xss6M -XX:ReservedCodeCacheSize=128M -server -Dsbt.io.virtual=false -Dfile.encoding=UTF-8
-      SCALA_212: 2.12.14
+      SCALA_212: 2.12.15
       SCALA_213: 2.13.6
       UTIL_TESTS: "utilCache/test utilControl/test utilInterface/test utilLogging/test utilPosition/test utilRelation/test utilScripted/test utilTracking/test"
       SBT_LOCAL: false

DEVELOPING.md

@@ -131,6 +131,10 @@ Listening for transport dt_socket at address: 5005
 Please note that this alternative launcher does _not_ have feature parity with sbt/launcher. (Meta)
 contributions welcome! :-D
 
+### Updating Scala version
+
+See https://github.com/sbt/sbt/pull/6522 for the list of files to change for Scala version upgrade.
+
 ### Diagnosing build failures
 
 Globally included plugins can interfere building `sbt`; if you are getting errors building sbt, try disabling all globally included plugins and try again.

build.sbt

@@ -45,6 +45,7 @@ ThisBuild / scmInfo := Some(
 ThisBuild / resolvers += Resolver.mavenLocal
 
 Global / semanticdbEnabled := !(Global / insideCI).value
+// Change main/src/main/scala/sbt/plugins/SemanticdbPlugin.scala too, if you change this.
 Global / semanticdbVersion := "4.4.28"
 val excludeLint = SettingKey[Set[Def.KeyedInitialize[_]]]("excludeLintKeys")
 Global / excludeLint := (Global / excludeLint).?.value.getOrElse(Set.empty)

launcher-package/build.sbt

@@ -26,7 +26,7 @@ lazy val sbtVersionToRelease = sys.props.getOrElse("sbt.build.version", sys.env.
       }))
 
 lazy val scala210 = "2.10.7"
-lazy val scala212 = "2.12.14"
+lazy val scala212 = "2.12.15"
 lazy val scala210Jline = "org.scala-lang" % "jline" % scala210
 lazy val jansi = {
   if (sbtVersionToRelease startsWith "1.") "org.fusesource.jansi" % "jansi" % "1.12"

main/src/main/scala/sbt/plugins/SemanticdbPlugin.scala

@@ -26,7 +26,7 @@ object SemanticdbPlugin extends AutoPlugin {
     semanticdbEnabled := SysProp.semanticdb,
     semanticdbIncludeInJar := false,
     semanticdbOptions := List(),
-    semanticdbVersion := "4.4.20"
+    semanticdbVersion := "4.4.28"
   )
 
   override lazy val projectSettings: Seq[Def.Setting[_]] = Seq(

sbt-app/src/sbt-test/actions/cross-advanced/build.sbt

@@ -1,5 +1,6 @@
 lazy val check = taskKey[Unit]("")
 lazy val compile2 = taskKey[Unit]("")
+lazy val scala212 = "2.12.15"
 
 lazy val root = (project in file("."))
   .aggregate(foo, bar, client)
@@ -10,19 +11,19 @@ lazy val root = (project in file("."))
 
 lazy val foo = project
   .settings(
-    crossScalaVersions := Seq("2.12.14", "2.13.1"),
+    crossScalaVersions := Seq(scala212, "2.13.1"),
     libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.0",
 
     check := {
       // This tests that +check will respect bar's crossScalaVersions and not switch
       val x = (LocalProject("bar") / scalaVersion).value
-      assert(x == "2.12.14", s"$x == 2.12.12")
+      assert(x == scala212, s"$x == $scala212")
       (Compile / compile).value
     },
     (Test / testOnly) := {
       // This tests that +testOnly will respect bar's crossScalaVersions and not switch
       val x = (LocalProject("bar") / scalaVersion).value
-      assert(x == "2.12.14", s"$x == 2.12.12")
+      assert(x == scala212, s"$x == $scala212")
       val _ = (Test / testOnly).evaluated
     },
     compile2 := {
@@ -35,7 +36,7 @@ lazy val foo = project
 
 lazy val bar = project
   .settings(
-    crossScalaVersions := Seq("2.12.14"),
+    crossScalaVersions := Seq(scala212),
     check := (Compile / compile).value,
     compile2 := (Compile / compile).value,
   )
@@ -46,14 +47,14 @@ lazy val baz = project
     check := {
       // This tests that +baz/check will respect bar's crossScalaVersions and not switch
       val x = (LocalProject("bar") / scalaVersion).value
-      assert(x == "2.12.14", s"$x == 2.12.14")
+      assert(x == scala212, s"$x == $scala212")
       (Compile / compile).value
     },
   )
 
 lazy val client = project
   .settings(
-    crossScalaVersions := Seq("2.12.14", "2.13.1"),
+    crossScalaVersions := Seq(scala212, "2.13.1"),
     check := (Compile / compile).value,
     compile2 := (Compile / compile).value,
   )

sbt-app/src/sbt-test/actions/cross-advanced/test

@@ -17,7 +17,7 @@
 ## test + with command or alias
 > clean
 ## for command cross building you do need crossScalaVerions on root
-> set root/crossScalaVersions := Seq("2.12.14", "2.13.1")
+> set root/crossScalaVersions := Seq("2.12.15", "2.13.1")
 > + build
 $ exists foo/target/scala-2.12
 $ exists foo/target/scala-2.13

sbt-app/src/sbt-test/project/sbt-plugin/build.sbt

@@ -1,6 +1,6 @@
 lazy val root = project.in(file("."))
   .enablePlugins(SbtPlugin)
   .settings(
-    scalaVersion := "2.12.14",
+    scalaVersion := "2.12.15",
     scalacOptions ++= Seq("-Xfatal-warnings", "-Xlint")
   )

sbt-app/src/sbt-test/project/sbt-plugin/changes/oldSbtPlugin.sbt

@@ -1,6 +1,6 @@
 lazy val root = project.in(file("."))
   .settings(
-    scalaVersion := "2.12.14",
+    scalaVersion := "2.12.15",
     sbtPlugin := true,
     scalacOptions ++= Seq("-Xfatal-warnings", "-Xlint")
   )

sbt-app/src/sbt-test/project/semanticdb-version/build.sbt

@@ -1,3 +1,4 @@
+// Don't have to upgrade this while updating 2.12
 ThisBuild / scalaVersion := "2.12.14"
 ThisBuild / semanticdbEnabled := true
 ThisBuild / semanticdbVersion := "4.4.20"

sbt-app/src/sbt-test/project/semanticdb/build.sbt

@@ -1,4 +1,4 @@
-ThisBuild / scalaVersion := "2.12.12"
+ThisBuild / scalaVersion := "2.12.15"
 ThisBuild / semanticdbEnabled := true
 ThisBuild / semanticdbIncludeInJar := true
 

sbt-app/src/sbt-test/tests/scala-instance-classloader/build.sbt

@@ -3,7 +3,7 @@ import sbt.internal.inc.ScalaInstance
 lazy val OtherScala = config("other-scala").hide
 lazy val junitinterface = "com.novocode" % "junit-interface" % "0.11"
 lazy val akkaActor = "com.typesafe.akka" %% "akka-actor" % "2.5.17"
-ThisBuild / scalaVersion := "2.12.14"
+ThisBuild / scalaVersion := "2.12.15"
 
 lazy val root = (project in file("."))
   .configs(OtherScala)

server-test/src/server-test/response/build.sbt

@@ -1,6 +1,6 @@
 import sbt.internal.server.{ ServerHandler, ServerIntent }
 
-ThisBuild / scalaVersion := "2.12.14"
+ThisBuild / scalaVersion := "2.12.15"
 
 Global / serverLog / logLevel := Level.Debug
 // custom handler