diff --git a/library/src-bootstrapped/scala/CanThrow.scala b/library/src/scala/CanThrow.scala
similarity index 100%
rename from library/src-bootstrapped/scala/CanThrow.scala
rename to library/src/scala/CanThrow.scala
diff --git a/library/src-bootstrapped/scala/runtime/$throws.scala b/library/src/scala/runtime/$throws.scala
similarity index 100%
rename from library/src-bootstrapped/scala/runtime/$throws.scala
rename to library/src/scala/runtime/$throws.scala
diff --git a/project/Build.scala b/project/Build.scala
index 7ca09b2b1dd3..811c3ae07c9d 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -63,9 +63,9 @@ object DottyJSPlugin extends AutoPlugin {
 }
 
 object Build {
-  val referenceVersion = "3.1.0-RC1-bin-20210823-dd7a07a-NIGHTLY"
+  val referenceVersion = "3.1.0-RC1"
 
-  val baseVersion = "3.1.0-RC1"
+  val baseVersion = "3.1.1-RC1"
 
   // Versions used by the vscode extension to create a new project
   // This should be the latest published releases.
diff --git a/project/MiMaFilters.scala b/project/MiMaFilters.scala
index 0199e471dfe2..bf3272fece48 100644
--- a/project/MiMaFilters.scala
+++ b/project/MiMaFilters.scala
@@ -28,5 +28,24 @@ object MiMaFilters {
     exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule.TypedOrTest"),
     exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule.TypedOrTestMethods"),
     exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#TypeReprMethods.isTupleN"),
+
+    // TODO: Remove those filters after releasing 3.1.0:
+    exclude[DirectMissingMethodProblem]("scala.CanEqual.canEqualSeqs"),
+    exclude[DirectMissingMethodProblem]("scala.CanEqual.canEqualOptions"),
+    exclude[DirectMissingMethodProblem]("scala.CanEqual.canEqualOption"),
+    exclude[DirectMissingMethodProblem]("scala.CanEqual.canEqualEither"),
+    exclude[DirectMissingMethodProblem]("scala.Tuple.canEqualEmptyTuple"),
+    exclude[DirectMissingMethodProblem]("scala.Tuple.canEqualTuple"),
+    exclude[DirectMissingMethodProblem]("scala.quoted.Quotes#reflectModule.WildcardTypeTest"),
+    exclude[DirectMissingMethodProblem]("scala.quoted.Quotes#reflectModule.Wildcard"),
+    exclude[DirectMissingMethodProblem]("scala.quoted.Quotes#reflectModule.TypedOrTestTypeTest"),
+    exclude[DirectMissingMethodProblem]("scala.quoted.Quotes#reflectModule.TypedOrTest"),
+    exclude[DirectMissingMethodProblem]("scala.quoted.Quotes#reflectModule.TypedOrTestMethods"),
+    exclude[DirectMissingMethodProblem]("scala.quoted.Quotes#reflectModule#TypeReprMethods.isTupleN"),
+    exclude[MissingClassProblem]("scala.quoted.Quotes$reflectModule$TypedOrTestMethods"),
+    exclude[MissingClassProblem]("scala.quoted.Quotes$reflectModule$TypedOrTestModule"),
+    exclude[MissingClassProblem]("scala.quoted.Quotes$reflectModule$WildcardModule"),
+    exclude[MissingClassProblem]("scala.runtime.$throws$package"),
+    exclude[MissingClassProblem]("scala.runtime.$throws$package$"),
   )
 }