diff --git a/build.sbt b/build.sbt
index e8f39ffea..9a07324dd 100644
--- a/build.sbt
+++ b/build.sbt
@@ -124,8 +124,9 @@ lazy val utilLogging = (project in internalPath / "util-logging")
       exclude[DirectMissingMethodProblem]("sbt.internal.util.SuccessEvent.copy*"),
       exclude[DirectMissingMethodProblem]("sbt.internal.util.TraceEvent.copy*"),
       exclude[DirectMissingMethodProblem]("sbt.internal.util.StringEvent.copy*"),
-      // Private final class constructor changed
+      // Private final class constructors changed
       exclude[DirectMissingMethodProblem]("sbt.util.InterfaceUtil#ConcretePosition.this"),
+      exclude[DirectMissingMethodProblem]("sbt.util.InterfaceUtil#ConcreteProblem.this"),
     ),
   )
   .configure(addSbtIO)
diff --git a/internal/util-interface/src/main/java/xsbti/Problem.java b/internal/util-interface/src/main/java/xsbti/Problem.java
index db7f67b22..db61f2bde 100644
--- a/internal/util-interface/src/main/java/xsbti/Problem.java
+++ b/internal/util-interface/src/main/java/xsbti/Problem.java
@@ -3,10 +3,20 @@
  */
 package xsbti;
 
+import java.util.Optional;
+
 public interface Problem
 {
 	String category();
 	Severity severity();
 	String message();
 	Position position();
-}
\ No newline at end of file
+
+  // Default value to avoid breaking binary compatibility
+  /**
+   * If present, the string shown to the user when displaying this Problem.
+   * Otherwise, the Problem will be shown in an implementation-defined way
+   * based on the values of its other fields.
+   */
+  default Optional<String> rendered() { return Optional.empty(); }
+}
diff --git a/internal/util-logging/src/main/contraband/interface.contra.txt b/internal/util-logging/src/main/contraband/interface.contra.txt
index a42eb09cb..3b5ed4986 100644
--- a/internal/util-logging/src/main/contraband/interface.contra.txt
+++ b/internal/util-logging/src/main/contraband/interface.contra.txt
@@ -29,4 +29,5 @@ type Problem {
   severity: Severity!
   message: String!
   position: Position!
+  rendered: String
 }
diff --git a/internal/util-logging/src/main/scala/sbt/internal/util/codec/ProblemFormats.scala b/internal/util-logging/src/main/scala/sbt/internal/util/codec/ProblemFormats.scala
index 9820289da..fb7583a5c 100644
--- a/internal/util-logging/src/main/scala/sbt/internal/util/codec/ProblemFormats.scala
+++ b/internal/util-logging/src/main/scala/sbt/internal/util/codec/ProblemFormats.scala
@@ -4,8 +4,8 @@
 package sbt.internal.util.codec
 
 import xsbti.{ Problem, Severity, Position }
-import sbt.util.InterfaceUtil.problem
 import _root_.sjsonnew.{ deserializationError, Builder, JsonFormat, Unbuilder }
+import java.util.Optional
 
 trait ProblemFormats { self: SeverityFormats with PositionFormats with sjsonnew.BasicJsonProtocol =>
   implicit lazy val ProblemFormat: JsonFormat[Problem] = new JsonFormat[Problem] {
@@ -13,12 +13,20 @@ trait ProblemFormats { self: SeverityFormats with PositionFormats with sjsonnew.
       jsOpt match {
         case Some(js) =>
           unbuilder.beginObject(js)
-          val category = unbuilder.readField[String]("category")
-          val severity = unbuilder.readField[Severity]("severity")
-          val message = unbuilder.readField[String]("message")
-          val position = unbuilder.readField[Position]("position")
+          val category0 = unbuilder.readField[String]("category")
+          val severity0 = unbuilder.readField[Severity]("severity")
+          val message0 = unbuilder.readField[String]("message")
+          val position0 = unbuilder.readField[Position]("position")
+          val rendered0 = unbuilder.readField[Optional[String]]("rendered")
+
           unbuilder.endObject()
-          problem(category, position, message, severity)
+          new Problem {
+            override val category = category0
+            override val position = position0
+            override val message = message0
+            override val severity = severity0
+            override val rendered = rendered0
+          }
         case None =>
           deserializationError("Expected JsObject but found None")
       }
@@ -29,6 +37,7 @@ trait ProblemFormats { self: SeverityFormats with PositionFormats with sjsonnew.
       builder.addField("severity", obj.severity)
       builder.addField("message", obj.message)
       builder.addField("position", obj.position)
+      builder.addField("rendered", obj.rendered)
       builder.endObject()
     }
   }
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 a1ae332d8..1de667f5b 100644
--- a/internal/util-logging/src/main/scala/sbt/util/InterfaceUtil.scala
+++ b/internal/util-logging/src/main/scala/sbt/util/InterfaceUtil.scala
@@ -89,8 +89,16 @@ object InterfaceUtil {
                          endLine0,
                          endColumn0)
 
+  @deprecated("Use the overload of this method with more arguments", "1.2.2")
   def problem(cat: String, pos: Position, msg: String, sev: Severity): Problem =
-    new ConcreteProblem(cat, pos, msg, sev)
+    problem(cat, pos, msg, sev, None)
+
+  def problem(cat: String,
+              pos: Position,
+              msg: String,
+              sev: Severity,
+              rendered: Option[String]): Problem =
+    new ConcreteProblem(cat, pos, msg, sev, rendered)
 
   private final class ConcreteT2[A1, A2](a1: A1, a2: A2) extends T2[A1, A2] {
     val get1: A1 = a1
@@ -144,12 +152,14 @@ object InterfaceUtil {
       cat: String,
       pos: Position,
       msg: String,
-      sev: Severity
+      sev: Severity,
+      rendered0: Option[String]
   ) extends Problem {
     val category = cat
     val position = pos
     val message = msg
     val severity = sev
+    override val rendered = o2jo(rendered0)
     override def toString = s"[$severity] $pos: $message"
   }
 }
diff --git a/internal/util-logging/src/main/scala/sbt/util/Logger.scala b/internal/util-logging/src/main/scala/sbt/util/Logger.scala
index 37a043cfa..3e543b5ce 100644
--- a/internal/util-logging/src/main/scala/sbt/util/Logger.scala
+++ b/internal/util-logging/src/main/scala/sbt/util/Logger.scala
@@ -117,6 +117,7 @@ object Logger {
       sourceFile0
     )
 
+  @deprecated("Use InterfaceUtil.problem", "1.2.2")
   def problem(cat: String, pos: Position, msg: String, sev: Severity): Problem =
     InterfaceUtil.problem(cat, pos, msg, sev)
 }