diff --git a/cli/src/Morphir/Elm/CLI.elm b/cli/src/Morphir/Elm/CLI.elm
index 3bfd6f1f7..af841b87f 100644
--- a/cli/src/Morphir/Elm/CLI.elm
+++ b/cli/src/Morphir/Elm/CLI.elm
@@ -29,8 +29,8 @@ import Morphir.Elm.Target exposing (BackendOptions, decodeOptions, mapDistributi
 import Morphir.File.FileMap exposing (FileMap)
 import Morphir.File.FileMap.Codec exposing (encodeFileMap)
 import Morphir.IR.Distribution as Distribution exposing (Distribution(..))
-import Morphir.IR.Distribution.Codec as DistributionCodec
 import Morphir.IR.FQName as FQName
+import Morphir.IR.FormatVersion.Codec as DistributionCodec
 import Morphir.IR.Package as Package exposing (PackageName)
 import Morphir.IR.SDK as SDK
 import Morphir.IR.Type exposing (Type)
diff --git a/cli/src/Morphir/Web/DevelopApp.elm b/cli/src/Morphir/Web/DevelopApp.elm
index cb4fa4739..d5317f087 100644
--- a/cli/src/Morphir/Web/DevelopApp.elm
+++ b/cli/src/Morphir/Web/DevelopApp.elm
@@ -58,8 +58,8 @@ import Morphir.Correctness.Test exposing (TestCase, TestSuite)
 import Morphir.IR.Decoration exposing (AllDecorationConfigAndData, DecorationData, DecorationID)
 import Morphir.IR.Decoration.Codec exposing (decodeAllDecorationConfigAndData, decodeDecorationData, encodeDecorationData)
 import Morphir.IR.Distribution as Distribution exposing (Distribution(..))
-import Morphir.IR.Distribution.Codec as DistributionCodec
 import Morphir.IR.FQName as FQName exposing (FQName)
+import Morphir.IR.FormatVersion.Codec as DistributionCodec
 import Morphir.IR.Module as Module exposing (ModuleName)
 import Morphir.IR.Name as Name exposing (Name)
 import Morphir.IR.NodeId exposing (NodeID(..))
diff --git a/cli/src/Morphir/Web/Editor.elm b/cli/src/Morphir/Web/Editor.elm
index 8ecd098af..53e92f61b 100644
--- a/cli/src/Morphir/Web/Editor.elm
+++ b/cli/src/Morphir/Web/Editor.elm
@@ -6,8 +6,8 @@ import Html exposing (Html)
 import Json.Decode as Decode exposing (Decoder)
 import Json.Encode as Encode
 import Morphir.IR.Distribution exposing (Distribution)
-import Morphir.IR.Distribution.Codec exposing (decodeVersionedDistribution)
 import Morphir.IR.FQName as FQName exposing (FQName)
+import Morphir.IR.FormatVersion.Codec exposing (decodeVersionedDistribution)
 import Morphir.IR.Type as Type exposing (Type)
 import Morphir.IR.Type.DataCodec as DataCodec exposing (decodeData)
 import Morphir.IR.Value exposing (RawValue, Value(..))
diff --git a/cli/src/Morphir/Web/Insight.elm b/cli/src/Morphir/Web/Insight.elm
index 4484b1353..38333a5f2 100644
--- a/cli/src/Morphir/Web/Insight.elm
+++ b/cli/src/Morphir/Web/Insight.elm
@@ -7,8 +7,8 @@ import Element.Font as Font
 import Html exposing (Html)
 import Json.Decode as Decode exposing (Decoder, string)
 import Morphir.IR.Distribution as Distribution exposing (Distribution(..))
-import Morphir.IR.Distribution.Codec as DistributionCodec
 import Morphir.IR.FQName exposing (FQName)
+import Morphir.IR.FormatVersion.Codec as DistributionCodec
 import Morphir.IR.Name exposing (Name)
 import Morphir.IR.Package as Package exposing (PackageName)
 import Morphir.IR.QName as QName exposing (QName(..))
diff --git a/cli/src/Morphir/Web/InsightTestApp.elm b/cli/src/Morphir/Web/InsightTestApp.elm
index 20cb29be0..5af2c7997 100644
--- a/cli/src/Morphir/Web/InsightTestApp.elm
+++ b/cli/src/Morphir/Web/InsightTestApp.elm
@@ -12,8 +12,8 @@ import Http
 import Morphir.Correctness.Codec exposing (decodeTestSuite)
 import Morphir.Correctness.Test exposing (TestCases, TestSuite)
 import Morphir.IR.Distribution as Distribution exposing (Distribution(..))
-import Morphir.IR.Distribution.Codec as DistributionCodec
 import Morphir.IR.FQName exposing (FQName)
+import Morphir.IR.FormatVersion.Codec as DistributionCodec
 import Morphir.IR.Name as Name exposing (Name)
 import Morphir.IR.SDK as SDK
 import Morphir.IR.Type exposing (Type)
diff --git a/cli2/src/Morphir/Elm/CLI.elm b/cli2/src/Morphir/Elm/CLI.elm
index 972304a4f..0a66c0ce7 100644
--- a/cli2/src/Morphir/Elm/CLI.elm
+++ b/cli2/src/Morphir/Elm/CLI.elm
@@ -31,7 +31,7 @@ import Morphir.File.FileMap.Codec exposing (encodeFileMap)
 import Morphir.File.FileSnapshot as FileSnapshot exposing (FileSnapshot)
 import Morphir.File.FileSnapshot.Codec as FileSnapshotCodec
 import Morphir.IR.Distribution as Distribution exposing (Distribution(..), lookupPackageName, lookupPackageSpecification)
-import Morphir.IR.Distribution.Codec as DistroCodec
+import Morphir.IR.FormatVersion.Codec as DistroCodec
 import Morphir.IR.Name as Name exposing (Name)
 import Morphir.IR.Package exposing (PackageName, Specification)
 import Morphir.IR.Path as Path exposing (Path)
diff --git a/cli2/src/Morphir/Elm/Generator.elm b/cli2/src/Morphir/Elm/Generator.elm
index 2083d6a46..00a52c99c 100644
--- a/cli2/src/Morphir/Elm/Generator.elm
+++ b/cli2/src/Morphir/Elm/Generator.elm
@@ -5,10 +5,9 @@ import Json.Decode as Decode
 import Json.Encode as Encode exposing (Value)
 import Morphir.Elm.Generator.API as Generator
 import Morphir.Elm.Generator.ValueGenerators as ValueGenerator
-import Morphir.IR as IR
-import Morphir.IR.Distribution exposing (Distribution(..))
-import Morphir.IR.Distribution.Codec as DistroCodec
+import Morphir.IR.Distribution as IR exposing (Distribution(..))
 import Morphir.IR.FQName as FQName exposing (FQName)
+import Morphir.IR.FormatVersion.Codec as DistroCodec
 import Morphir.IR.Type as Type exposing (Type)
 import Morphir.IR.Type.DataCodec as DataCodec
 import Morphir.IR.Value exposing (RawValue)
@@ -87,7 +86,7 @@ update msg () =
                     else
                         let
                             ir =
-                                IR.fromDistribution distro
+                                distro
 
                             fqnByTpeSpecsResult =
                                 targets
diff --git a/elm.json b/elm.json
index f289bf111..8bc2ece75 100644
--- a/elm.json
+++ b/elm.json
@@ -35,6 +35,8 @@
         "Morphir.IR.Package.Codec",
         "Morphir.IR.Distribution",
         "Morphir.IR.Distribution.Codec",
+        "Morphir.IR.FormatVersion",
+        "Morphir.IR.FormatVersion.Codec",
         "Morphir.Elm.Frontend",
         "Morphir.Elm.Frontend.Codec",
         "Morphir.Elm.IncrementalResolve",
diff --git a/morphir.json b/morphir.json
index 9d37d2444..9857a7027 100644
--- a/morphir.json
+++ b/morphir.json
@@ -11,6 +11,7 @@
         "IR.Value",
         "IR.Module",
         "IR.Package",
-        "IR.Distribution"
+        "IR.Distribution",
+        "IR.FormatVersion"
     ]
 }
diff --git a/src/Morphir/IR/Decoration/Codec.elm b/src/Morphir/IR/Decoration/Codec.elm
index c8372816d..faa6a3af8 100644
--- a/src/Morphir/IR/Decoration/Codec.elm
+++ b/src/Morphir/IR/Decoration/Codec.elm
@@ -14,8 +14,8 @@ import Json.Decode as Decode
 import Json.Encode as Encode
 import Morphir.IR.Decoration exposing (AllDecorationConfigAndData, DecorationConfigAndData, DecorationData)
 import Morphir.IR.Distribution exposing (Distribution)
-import Morphir.IR.Distribution.Codec exposing (decodeVersionedDistribution)
 import Morphir.IR.FQName as FQName exposing (FQName)
+import Morphir.IR.FormatVersion.Codec exposing (decodeVersionedDistribution)
 import Morphir.IR.NodeId exposing (NodeID(..), nodeIdFromString, nodeIdToString)
 import Morphir.IR.Type as Type
 import Morphir.IR.Type.DataCodec as DataCodec
diff --git a/src/Morphir/IR/Distribution/Codec.elm b/src/Morphir/IR/Distribution/Codec.elm
index 84bd068e0..410670c50 100644
--- a/src/Morphir/IR/Distribution/Codec.elm
+++ b/src/Morphir/IR/Distribution/Codec.elm
@@ -15,14 +15,14 @@
 -}
 
 
-module Morphir.IR.Distribution.Codec exposing (encodeVersionedDistribution, decodeVersionedDistribution, encodeDistribution, decodeDistribution)
+module Morphir.IR.Distribution.Codec exposing (encodeDistribution, decodeDistribution)
 
 {-| Codecs for types in the `Morphir.IR.Distribution` module.
 
 
 # Distribution
 
-@docs encodeVersionedDistribution, decodeVersionedDistribution, encodeDistribution, decodeDistribution
+@docs encodeDistribution, decodeDistribution
 
 -}
 
@@ -37,52 +37,6 @@ import Morphir.IR.Path.Codec exposing (decodePath, encodePath)
 import Morphir.IR.Type.Codec exposing (decodeType, encodeType)
 
 
-{-| This is a manually managed version number to be able to handle breaking changes in the IR format more explicitly.
--}
-currentFormatVersion : Int
-currentFormatVersion =
-    3
-
-
-{-| Encode distribution including a version number.
--}
-encodeVersionedDistribution : Distribution -> Encode.Value
-encodeVersionedDistribution distro =
-    Encode.object
-        [ ( "formatVersion", Encode.int currentFormatVersion )
-        , ( "distribution", encodeDistribution distro )
-        ]
-
-
-{-| Decode distribution including a version number.
--}
-decodeVersionedDistribution : Decode.Decoder Distribution
-decodeVersionedDistribution =
-    Decode.oneOf
-        [ Decode.field "formatVersion" Decode.int
-            |> Decode.andThen
-                (\formatVersion ->
-                    if formatVersion == currentFormatVersion then
-                        Decode.field "distribution" decodeDistribution
-
-                    else if formatVersion == 1 then
-                        Decode.field "distribution" CodecV1.decodeDistribution
-
-                    else
-                        Decode.fail
-                            (String.concat
-                                [ "The IR is using format version "
-                                , String.fromInt formatVersion
-                                , " but the latest format version is "
-                                , String.fromInt currentFormatVersion
-                                , ". Please regenerate it!"
-                                ]
-                            )
-                )
-        , Decode.fail "The IR is in an old format that doesn't have a format version on it. Please regenerate it!"
-        ]
-
-
 {-| Encode Distribution.
 -}
 encodeDistribution : Distribution -> Encode.Value
diff --git a/src/Morphir/IR/FormatVersion.elm b/src/Morphir/IR/FormatVersion.elm
new file mode 100644
index 000000000..4f4465f26
--- /dev/null
+++ b/src/Morphir/IR/FormatVersion.elm
@@ -0,0 +1,52 @@
+{-
+   Copyright 2020 Morgan Stanley
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-}
+
+
+module Morphir.IR.FormatVersion exposing
+    ( VersionedDistribution
+    , currentFormatVersion
+    )
+
+{-| This module provides a wrapper for specifying a version of a Distribution
+
+
+# Type Expression
+
+@docs VersionedDistribution
+
+
+# VersionedDistribution
+
+@docs currentFormatVersion
+
+-}
+
+import Morphir.IR.Distribution exposing (Distribution)
+
+
+{-| A wrapper associates a distribution with a specific version.
+-}
+type alias VersionedDistribution =
+    { formatVersion : Int
+    , distribution : Distribution
+    }
+
+
+{-| This is a manually managed version number to be able to handle breaking changes in the IR format more explicitly.
+-}
+currentFormatVersion : Int
+currentFormatVersion =
+    3
diff --git a/src/Morphir/IR/FormatVersion/Codec.elm b/src/Morphir/IR/FormatVersion/Codec.elm
new file mode 100644
index 000000000..6f690f2b9
--- /dev/null
+++ b/src/Morphir/IR/FormatVersion/Codec.elm
@@ -0,0 +1,73 @@
+{-
+   Copyright 2020 Morgan Stanley
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-}
+
+
+module Morphir.IR.FormatVersion.Codec exposing (encodeVersionedDistribution, decodeVersionedDistribution)
+
+{-| Codecs provided for encoding and decoding a versioned distribution.
+
+
+# VersionedDistribution
+
+@docs encodeVersionedDistribution, decodeVersionedDistribution
+
+-}
+
+import Json.Decode as Decode
+import Json.Encode as Encode
+import Morphir.IR.Distribution exposing (Distribution)
+import Morphir.IR.Distribution.Codec exposing (decodeDistribution, encodeDistribution)
+import Morphir.IR.Distribution.CodecV1 as CodecV1
+import Morphir.IR.FormatVersion exposing (currentFormatVersion)
+
+
+{-| Encode distribution including a version number.
+-}
+encodeVersionedDistribution : Distribution -> Encode.Value
+encodeVersionedDistribution distro =
+    Encode.object
+        [ ( "formatVersion", Encode.int currentFormatVersion )
+        , ( "distribution", encodeDistribution distro )
+        ]
+
+
+{-| Decode distribution including a version number.
+-}
+decodeVersionedDistribution : Decode.Decoder Distribution
+decodeVersionedDistribution =
+    Decode.oneOf
+        [ Decode.field "formatVersion" Decode.int
+            |> Decode.andThen
+                (\formatVersion ->
+                    if formatVersion == currentFormatVersion then
+                        Decode.field "distribution" decodeDistribution
+
+                    else if formatVersion == 1 then
+                        Decode.field "distribution" CodecV1.decodeDistribution
+
+                    else
+                        Decode.fail
+                            (String.concat
+                                [ "The IR is using format version "
+                                , String.fromInt formatVersion
+                                , " but the latest format version is "
+                                , String.fromInt currentFormatVersion
+                                , ". Please regenerate it!"
+                                ]
+                            )
+                )
+        , Decode.fail "The IR is in an old format that doesn't have a format version on it. Please regenerate it!"
+        ]
diff --git a/src/Morphir/IR/Value.elm b/src/Morphir/IR/Value.elm
index 9cdcd5857..c457fbfb6 100644
--- a/src/Morphir/IR/Value.elm
+++ b/src/Morphir/IR/Value.elm
@@ -374,7 +374,7 @@ typeAndValueToDefinition valueType value =
             case ( body, bodyType ) of
                 ( Lambda va (AsPattern _ (WildcardPattern _) argName) lambdaBody, Type.Function _ argType returnType ) ->
                     liftLambdaArguments
-                        (args ++ [ ( argName, va, argType ) ])
+                        (List.append args [ ( argName, va, argType ) ])
                         returnType
                         lambdaBody
 
diff --git a/src/Morphir/Scala/PrettyPrinter.elm b/src/Morphir/Scala/PrettyPrinter.elm
index 52894c638..5647ece24 100644
--- a/src/Morphir/Scala/PrettyPrinter.elm
+++ b/src/Morphir/Scala/PrettyPrinter.elm
@@ -357,7 +357,7 @@ mapArgDecl opt argDecl =
                 Nothing ->
                     empty
     in
-    mapModifiers argDecl.modifiers ++ argDecl.name ++ ": " ++ mapType opt argDecl.tpe ++ defaultValueDoc
+    mapModifiers argDecl.modifiers ++ prefixKeyword argDecl.name ++ ": " ++ mapType opt argDecl.tpe ++ defaultValueDoc
 
 
 mapType : Options -> Type -> Doc
@@ -646,7 +646,7 @@ mapPattern pattern =
             "Nil"
 
         HeadTailMatch headPattern tailPattern ->
-            mapPattern headPattern ++ " :: " ++ mapPattern tailPattern
+            parens (mapPattern headPattern ++ " :: " ++ mapPattern tailPattern)
 
         CommentedPattern childPattern message ->
             mapPattern childPattern ++ " /* " ++ message ++ " */ "
@@ -666,7 +666,7 @@ mapLit lit =
             "'" ++ String.fromChar char ++ "'"
 
         StringLit string ->
-            "\"" ++ string ++ "\""
+            "\"\"\"" ++ string ++ "\"\"\""
 
         IntegerLit int ->
             String.fromInt int
diff --git a/tests/Morphir/IR/Distribution/CodecTests.elm b/tests/Morphir/IR/Distribution/CodecTests.elm
index 7c347a391..6dec6568c 100644
--- a/tests/Morphir/IR/Distribution/CodecTests.elm
+++ b/tests/Morphir/IR/Distribution/CodecTests.elm
@@ -7,7 +7,7 @@ import Json.Encode as Encode
 import Morphir.Compiler.Codec as CompilerCodec
 import Morphir.IR.AccessControlled exposing (private, public)
 import Morphir.IR.Distribution as Distribution exposing (Distribution)
-import Morphir.IR.Distribution.Codec as DistributionCodec
+import Morphir.IR.FormatVersion.Codec as DistributionCodec
 import Morphir.IR.Documented exposing (Documented)
 import Morphir.IR.FQName exposing (fQName)
 import Morphir.IR.Package as Package
diff --git a/tests/Morphir/TestCasesJson.elm b/tests/Morphir/TestCasesJson.elm
index a612cc545..f55929d37 100644
--- a/tests/Morphir/TestCasesJson.elm
+++ b/tests/Morphir/TestCasesJson.elm
@@ -6,7 +6,7 @@ import Json.Decode as Decode
 import Morphir.Correctness.Codec exposing (decodeTestSuite, encodeTestSuite)
 import Morphir.Correctness.Test exposing (TestCase, TestSuite)
 import Morphir.IR.Distribution exposing (Distribution(..))
-import Morphir.IR.Distribution.Codec as DistributionCodec
+import Morphir.IR.FormatVersion.Codec as DistributionCodec
 import Morphir.IR.Literal exposing (Literal(..))
 import Morphir.IR.Package as Package
 import Morphir.IR.Value exposing (RawValue, Value(..))