diff --git a/lm-core/src/main/scala/sbt/librarymanagement/ConfigurationExtra.scala b/lm-core/src/main/scala/sbt/librarymanagement/ConfigurationExtra.scala
index 88e880d03..8aa8997e9 100644
--- a/lm-core/src/main/scala/sbt/librarymanagement/ConfigurationExtra.scala
+++ b/lm-core/src/main/scala/sbt/librarymanagement/ConfigurationExtra.scala
@@ -3,7 +3,6 @@
  */
 package sbt.librarymanagement
 
-import scala.annotation.nowarn
 import scala.quoted.*
 
 object Configurations {
@@ -23,7 +22,6 @@ object Configurations {
   lazy val TestInternal = fullInternal(Test)
   lazy val CompileInternal = fullInternal(Compile)
 
-  @nowarn
   def internalMap(c: Configuration) = c match {
     case Compile => CompileInternal
     case Test    => TestInternal
@@ -62,7 +60,6 @@ object Configurations {
     configs.map(config => (config.name, config)).toMap.values.toSet
 
   /** Returns true if the configuration should be under the influence of scalaVersion. */
-  @nowarn
   private[sbt] def underScalaVersion(c: Configuration): Boolean =
     c match {
       case Default | Compile | Provided | Runtime | Test | Optional | CompilerPlugin |
diff --git a/main-actions/src/main/scala/sbt/internal/sona/Sona.scala b/main-actions/src/main/scala/sbt/internal/sona/Sona.scala
index b0b277676..66f62e8d2 100644
--- a/main-actions/src/main/scala/sbt/internal/sona/Sona.scala
+++ b/main-actions/src/main/scala/sbt/internal/sona/Sona.scala
@@ -22,7 +22,6 @@ import java.net.URLEncoder
 import java.nio.charset.StandardCharsets
 import java.nio.file.Path
 import java.util.Base64
-import scala.annotation.nowarn
 import scala.concurrent.*
 import scala.concurrent.duration.*
 
@@ -145,7 +144,6 @@ class SonaClient(reqTransform: Request => Request, uploadRequestTimeout: FiniteD
   /**
    * Retry future function on any error.
    */
-  @nowarn
   private def retryF[A1](maxAttempt: Int, waitDurationBetweenAttempt: FiniteDuration)(
       f: Int => Future[A1]
   ): Future[A1] = {
diff --git a/main-settings/src/test/scala/sbt/BuildSettingsInstances.scala b/main-settings/src/test/scala/sbt/BuildSettingsInstances.scala
index d6cdc1276..bc0e9df15 100644
--- a/main-settings/src/test/scala/sbt/BuildSettingsInstances.scala
+++ b/main-settings/src/test/scala/sbt/BuildSettingsInstances.scala
@@ -11,7 +11,6 @@ package test
 
 import java.io.File
 import hedgehog.*
-import scala.annotation.nowarn
 import scala.reflect.ClassTag
 import _root_.sbt.io.IO
 import _root_.sbt.ScopeAxis.{ Select, This, Zero }
@@ -46,7 +45,6 @@ object BuildSettingsInstances:
       1133 -> genRootProject.map(x => x: Reference),
     )
 
-  @nowarn
   given Gen[ConfigKey] = Gen.frequency1(
     2 -> Gen.constant[ConfigKey](Compile),
     2 -> Gen.constant[ConfigKey](Test),
diff --git a/main/src/main/scala/sbt/Defaults.scala b/main/src/main/scala/sbt/Defaults.scala
index fc64ba41a..bfbb2961e 100644
--- a/main/src/main/scala/sbt/Defaults.scala
+++ b/main/src/main/scala/sbt/Defaults.scala
@@ -1283,7 +1283,6 @@ object Defaults extends BuildCommon {
       )
     }
 
-  @nowarn
   def inputTests(key: InputKey[?]): Initialize[InputTask[TestResult]] =
     inputTests0.mapReferenced(Def.mapScope((s) => s.rescope(key.key)))
 
@@ -4564,7 +4563,6 @@ trait BuildExtra extends BuildCommon with DefExtra {
 
   // public API
   /** Returns a vector of settings that create custom run input task. */
-  @nowarn
   def fullRunInputTask(
       scoped: InputKey[Unit],
       config: Configuration,
diff --git a/main/src/main/scala/sbt/internal/Clean.scala b/main/src/main/scala/sbt/internal/Clean.scala
index 4a307fbd6..b74d5d988 100644
--- a/main/src/main/scala/sbt/internal/Clean.scala
+++ b/main/src/main/scala/sbt/internal/Clean.scala
@@ -24,7 +24,6 @@ import sbt.nio.file.syntax.pathToPathOps
 import sbt.nio.file.Glob.{ GlobOps }
 import sbt.util.Level
 import sjsonnew.JsonFormat
-import scala.annotation.nowarn
 import xsbti.{ PathBasedFile, VirtualFileRef }
 
 private[sbt] object Clean {
@@ -155,7 +154,6 @@ private[sbt] object Clean {
     private def toSeqPath(using toSeqPath: ToSeqPath[T]): Seq[Path] = toSeqPath(t)
   }
 
-  @nowarn
   private[sbt] def cleanFileOutputTask[T: JsonFormat: ToSeqPath](
       taskKey: TaskKey[T]
   ): Def.Initialize[Task[Unit]] =
diff --git a/main/src/main/scala/sbt/internal/Continuous.scala b/main/src/main/scala/sbt/internal/Continuous.scala
index 1fc9210cc..c11088c10 100644
--- a/main/src/main/scala/sbt/internal/Continuous.scala
+++ b/main/src/main/scala/sbt/internal/Continuous.scala
@@ -45,7 +45,6 @@ import scala.concurrent.duration.FiniteDuration.FiniteDurationIsOrdered
 import scala.concurrent.duration.*
 import scala.util.{ Failure, Success, Try }
 import scala.util.control.NonFatal
-import scala.annotation.nowarn
 
 /**
  * Provides the implementation of the `~` command and `watch` task. The implementation is quite
@@ -394,7 +393,6 @@ private[sbt] object Continuous {
     }
   }
 
-  @nowarn
   private def getOnStart(
       project: ProjectRef,
       commands: Seq[String],
@@ -428,7 +426,6 @@ private[sbt] object Continuous {
     }
   }
 
-  @nowarn
   private def getFileEvents(
       configs: Seq[Config],
       logger: Logger,
@@ -977,13 +974,11 @@ private[sbt] object Continuous {
     def arguments(logger: Logger): Arguments = new Arguments(logger, inputs())
   end Config
 
-  @nowarn
   private def getStartMessage(key: ScopedKey[?])(using Extracted): StartMessage = Some {
     lazy val default = key.get(watchStartMessage).getOrElse(Watch.defaultStartWatch)
     default
   }
 
-  @nowarn
   private def getTriggerMessage(
       key: ScopedKey[?]
   )(using Extracted): TriggerMessage = {
diff --git a/main/src/main/scala/sbt/internal/GlobalPlugin.scala b/main/src/main/scala/sbt/internal/GlobalPlugin.scala
index d3612be3b..d59dccf55 100644
--- a/main/src/main/scala/sbt/internal/GlobalPlugin.scala
+++ b/main/src/main/scala/sbt/internal/GlobalPlugin.scala
@@ -26,7 +26,6 @@ import sbt.librarymanagement.LibraryManagementCodec.given
 import java.io.File
 import org.apache.ivy.core.module.{ descriptor, id }
 import descriptor.ModuleDescriptor, id.ModuleRevisionId
-import scala.annotation.nowarn
 
 object GlobalPlugin {
   // constructs a sequence of settings that may be appended to a project's settings to
@@ -71,7 +70,6 @@ object GlobalPlugin {
     GlobalPlugin(data, structure, inject(data), base)
   }
 
-  @nowarn
   def extract(state: State, structure: BuildStructure): (State, GlobalPluginData) = {
     import structure.{ data, root, rootProject }
     val p: Scope = Scope.GlobalScope.rescope(ProjectRef(root, rootProject(root)))
@@ -112,7 +110,6 @@ object GlobalPlugin {
     }
   }
 
-  @nowarn
   val globalPluginSettings = Project.inScope(Scope.GlobalScope.rescope(LocalRootProject))(
     Seq(
       organization := SbtArtifacts.Organization,
diff --git a/main/src/main/scala/sbt/internal/LibraryManagement.scala b/main/src/main/scala/sbt/internal/LibraryManagement.scala
index a888c59fb..e6e0ecbfa 100644
--- a/main/src/main/scala/sbt/internal/LibraryManagement.scala
+++ b/main/src/main/scala/sbt/internal/LibraryManagement.scala
@@ -22,7 +22,6 @@ import sbt.io.syntax.*
 import sbt.ProjectExtra.*
 import sjsonnew.JsonFormat
 import scala.concurrent.duration.FiniteDuration
-import scala.annotation.nowarn
 
 private[sbt] object LibraryManagement {
   given linter: sbt.dsl.LinterLevel.Ignore.type = sbt.dsl.LinterLevel.Ignore
@@ -251,7 +250,6 @@ private[sbt] object LibraryManagement {
    * Resolves and optionally retrieves classified artifacts, such as javadocs and sources,
    * for dependency definitions, transitively.
    */
-  @nowarn
   def updateClassifiersTask: Def.Initialize[Task[UpdateReport]] =
     TupleWrap[
       (
diff --git a/main/src/main/scala/sbt/internal/ProjectQuery.scala b/main/src/main/scala/sbt/internal/ProjectQuery.scala
index 655137ba8..d3049c4c5 100644
--- a/main/src/main/scala/sbt/internal/ProjectQuery.scala
+++ b/main/src/main/scala/sbt/internal/ProjectQuery.scala
@@ -4,7 +4,6 @@ package internal
 import sbt.internal.util.complete.{ DefaultParsers, Parser }
 import sbt.Keys.scalaBinaryVersion
 import DefaultParsers.*
-import scala.annotation.nowarn
 import scala.util.matching.Regex
 import sbt.internal.util.AttributeKey
 
@@ -15,7 +14,6 @@ private[sbt] case class ProjectQuery(
   import ProjectQuery.*
   private lazy val pattern: Regex = Regex("^" + projectName.replace(wildcard, ".*") + "$")
 
-  @nowarn
   def buildQuery(structure: BuildStructure): ProjectRef => Boolean =
     (p: ProjectRef) =>
       val projectMatches =
diff --git a/main/src/main/scala/sbt/internal/WatchTransitiveDependencies.scala b/main/src/main/scala/sbt/internal/WatchTransitiveDependencies.scala
index 4a46cfbde..17582a184 100644
--- a/main/src/main/scala/sbt/internal/WatchTransitiveDependencies.scala
+++ b/main/src/main/scala/sbt/internal/WatchTransitiveDependencies.scala
@@ -21,7 +21,7 @@ import sbt.nio.FileStamper
 import sbt.nio.Keys.*
 import sbt.nio.file.Glob
 
-import scala.annotation.{ nowarn, tailrec }
+import scala.annotation.tailrec
 
 private[sbt] object WatchTransitiveDependencies {
   extension (source: Source) {
@@ -165,7 +165,6 @@ private[sbt] object WatchTransitiveDependencies {
     }
   }
 
-  @nowarn
   @tailrec
   private def collectKeys(
       arguments: Arguments,
diff --git a/main/src/main/scala/sbt/nio/Settings.scala b/main/src/main/scala/sbt/nio/Settings.scala
index b22b4e0b0..7ca7bbd12 100644
--- a/main/src/main/scala/sbt/nio/Settings.scala
+++ b/main/src/main/scala/sbt/nio/Settings.scala
@@ -25,7 +25,6 @@ import sbt.nio.file.{ AllPass, FileAttributes, Glob, RecursiveGlob }
 import sbt.std.TaskExtra.*
 import sjsonnew.JsonFormat
 
-import scala.annotation.nowarn
 import scala.collection.immutable.VectorBuilder
 import java.io.File
 import xsbti.VirtualFileRef
@@ -67,7 +66,6 @@ private[sbt] object Settings {
    * @param fileOutputScopes the set of scopes for which the fileOutputs setting is defined
    * @return the injected settings
    */
-  @nowarn
   private def maybeAddOutputsAndFileStamps(
       setting: Def.Setting[?],
       fileOutputScopes: Set[Scope]
@@ -90,7 +88,6 @@ private[sbt] object Settings {
     }
   }
 
-  @nowarn
   private def addDefaultTasks(
       setting: Def.Setting[?],
       fileOutputScopes: Set[Scope]
@@ -105,7 +102,6 @@ private[sbt] object Settings {
     } else Nil
   }
 
-  @nowarn
   private def addOutputAndStampTasks[T: JsonFormat: ToSeqPath](
       setting: Def.Setting[?]
   ): List[Def.Setting[?]] = {
@@ -271,7 +267,6 @@ private[sbt] object Settings {
    * @param taskKey the task for which we add a custom clean implementation
    * @return a task specific clean implementation
    */
-  @nowarn
   private[sbt] def cleanImpl[T: JsonFormat: ToSeqPath](taskKey: TaskKey[T]): Def.Setting[?] = {
     val taskScope = taskKey.scope.rescope(taskKey.key)
     addTaskDefinition(
@@ -326,7 +321,6 @@ private[sbt] object Settings {
     })
   }
 
-  @nowarn
   private def outputsAndStamps[T: JsonFormat: ToSeqPath](
       taskKey: TaskKey[T]
   ): List[Def.Setting[?]] = {
diff --git a/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala b/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala
index 6361ad3cb..d70115072 100644
--- a/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala
+++ b/main/src/main/scala/sbt/plugins/JUnitXmlReportPlugin.scala
@@ -19,7 +19,6 @@ import sbt.ProjectExtra.inConfig
 import sbt.internal.*
 import sbt.io.syntax.*
 import sbt.librarymanagement.Configurations.Test
-import scala.annotation.nowarn
 
 /**
  * An experimental plugin that adds the ability for junit-xml to be generated.
@@ -54,7 +53,6 @@ object JUnitXmlReportPlugin extends AutoPlugin {
 
   import autoImport.*
 
-  @nowarn
   override lazy val projectSettings: Seq[Setting[?]] =
     inConfig(Test)(testReportSettings)
 }