diff --git a/src/War3App.MapAdapter.EtoForms.Gtk/War3App.MapAdapter.EtoForms.Gtk.csproj b/src/War3App.MapAdapter.EtoForms.Gtk/War3App.MapAdapter.EtoForms.Gtk.csproj
index 59b22b2..d50744d 100644
--- a/src/War3App.MapAdapter.EtoForms.Gtk/War3App.MapAdapter.EtoForms.Gtk.csproj
+++ b/src/War3App.MapAdapter.EtoForms.Gtk/War3App.MapAdapter.EtoForms.Gtk.csproj
@@ -5,7 +5,7 @@
     <LangVersion>9.0</LangVersion>
     <Nullable>enable</Nullable>
     <OutputType>WinExe</OutputType>
-    <Version>1.5.2</Version>
+    <Version>1.6.0</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/War3App.MapAdapter.EtoForms/War3App.MapAdapter.EtoForms.csproj b/src/War3App.MapAdapter.EtoForms/War3App.MapAdapter.EtoForms.csproj
index 7e01b83..11dfcc5 100644
--- a/src/War3App.MapAdapter.EtoForms/War3App.MapAdapter.EtoForms.csproj
+++ b/src/War3App.MapAdapter.EtoForms/War3App.MapAdapter.EtoForms.csproj
@@ -4,7 +4,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <LangVersion>9.0</LangVersion>
     <Nullable>enable</Nullable>
-    <Version>1.5.2</Version>
+    <Version>1.6.0</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/War3App.MapAdapter.WinForms/War3App.MapAdapter.WinForms.csproj b/src/War3App.MapAdapter.WinForms/War3App.MapAdapter.WinForms.csproj
index b6f5c4a..716b4d7 100644
--- a/src/War3App.MapAdapter.WinForms/War3App.MapAdapter.WinForms.csproj
+++ b/src/War3App.MapAdapter.WinForms/War3App.MapAdapter.WinForms.csproj
@@ -7,7 +7,7 @@
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
     <OutputType>WinExe</OutputType>
-    <Version>1.5.2</Version>
+    <Version>1.6.0</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/War3App.MapAdapter/Environment/MapEnvironmentAdapter.cs b/src/War3App.MapAdapter/Environment/MapEnvironmentAdapter.cs
index abe038c..99f82a8 100644
--- a/src/War3App.MapAdapter/Environment/MapEnvironmentAdapter.cs
+++ b/src/War3App.MapAdapter/Environment/MapEnvironmentAdapter.cs
@@ -6,6 +6,7 @@
 using War3Net.Build.Common;
 using War3Net.Build.Environment;
 using War3Net.Build.Extensions;
+using War3Net.Common.Providers;
 
 namespace War3App.MapAdapter.Environment
 {
@@ -40,7 +41,24 @@ public AdaptResult AdaptFile(Stream stream, AdaptFileContext context)
                 return context.ReportParseError(e);
             }
 
-            return MapFileStatus.Compatible;
+            if (!mapEnvironment.Adapt(context, out var status))
+            {
+                return status;
+            }
+
+            try
+            {
+                var memoryStream = new MemoryStream();
+
+                using var writer = new BinaryWriter(memoryStream, UTF8EncodingProvider.StrictUTF8, true);
+                writer.Write(mapEnvironment);
+
+                return AdaptResult.Create(memoryStream, status);
+            }
+            catch (Exception e)
+            {
+                return context.ReportSerializeError(e);
+            }
         }
 
         public string SerializeFileToJson(Stream stream, GamePatch gamePatch, JsonSerializerOptions options)
diff --git a/src/War3App.MapAdapter/Environment/MapEnvironmentExtensions.cs b/src/War3App.MapAdapter/Environment/MapEnvironmentExtensions.cs
new file mode 100644
index 0000000..dd3dbc7
--- /dev/null
+++ b/src/War3App.MapAdapter/Environment/MapEnvironmentExtensions.cs
@@ -0,0 +1,62 @@
+using War3Net.Build.Common;
+using War3Net.Build.Environment;
+
+namespace War3App.MapAdapter.Environment
+{
+    public static class MapEnvironmentExtensions
+    {
+        public static bool Adapt(this MapEnvironment mapEnvironment, AdaptFileContext context, out MapFileStatus status)
+        {
+            if (mapEnvironment.GetMinimumPatch() <= context.TargetPatch.Patch)
+            {
+                status = MapFileStatus.Compatible;
+                return false;
+            }
+
+            status = mapEnvironment.TryDowngrade(context.TargetPatch.Patch)
+                ? MapFileStatus.Compatible
+                : MapFileStatus.Incompatible;
+
+            return status == MapFileStatus.Compatible;
+        }
+
+        public static bool TryDowngrade(this MapEnvironment mapEnvironment, GamePatch targetPatch)
+        {
+            try
+            {
+                while (mapEnvironment.GetMinimumPatch() > targetPatch)
+                {
+                    mapEnvironment.DowngradeOnce();
+                }
+
+                return true;
+            }
+            catch
+            {
+                throw;
+            }
+        }
+
+        public static void DowngradeOnce(this MapEnvironment mapEnvironment)
+        {
+            switch (mapEnvironment.FormatVersion)
+            {
+                case MapEnvironmentFormatVersion.v12:
+                    mapEnvironment.FormatVersion = MapEnvironmentFormatVersion.v11;
+                    break;
+
+                default:
+                    break;
+            }
+        }
+
+        public static GamePatch GetMinimumPatch(this MapEnvironment mapEnvironment)
+        {
+            return mapEnvironment.FormatVersion switch
+            {
+                MapEnvironmentFormatVersion.v11 => GamePatch.v1_00,
+                MapEnvironmentFormatVersion.v12 => GamePatch.v2_0_3,
+            };
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/War3App.MapAdapter/War3App.MapAdapter.csproj b/src/War3App.MapAdapter/War3App.MapAdapter.csproj
index 6c809ab..f16fe51 100644
--- a/src/War3App.MapAdapter/War3App.MapAdapter.csproj
+++ b/src/War3App.MapAdapter/War3App.MapAdapter.csproj
@@ -4,13 +4,13 @@
     <TargetFramework>net6.0</TargetFramework>
     <LangVersion>9.0</LangVersion>
     <Nullable>enable</Nullable>
-    <Version>1.5.2</Version>
+    <Version>1.6.0</Version>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="5.0.0" />
     <PackageReference Include="War3Api.Blizzard" Version="1.33.0" />
-    <PackageReference Include="War3Net.Build.Core" Version="5.8.1" />
+    <PackageReference Include="War3Net.Build.Core" Version="5.8.2" />
   </ItemGroup>
 
 </Project>