diff --git a/shared-infrastructure b/shared-infrastructure
index 9b5a5b7..faf84e4 160000
--- a/shared-infrastructure
+++ b/shared-infrastructure
@@ -1 +1 @@
-Subproject commit 9b5a5b70b46bc23b9d8d8645cd691d5bc5a2d84f
+Subproject commit faf84e44ec90e8a42a7271bcd04fea76279efb08
diff --git a/src/SixLabors.Shapes/InternalPath.cs b/src/SixLabors.Shapes/InternalPath.cs
index cf5e6d7..7641e93 100644
--- a/src/SixLabors.Shapes/InternalPath.cs
+++ b/src/SixLabors.Shapes/InternalPath.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors and contributors.
+// Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
 using System;
@@ -163,7 +163,7 @@ namespace SixLabors.Shapes
             return new PointInfo
             {
                 DistanceAlongPath = this.points[closestPoint].TotalLength + Vector2.Distance(this.points[closestPoint].Point, internalInfo.PointOnLine),
-                DistanceFromPath = (float)Math.Sqrt(internalInfo.DistanceSquared),
+                DistanceFromPath = MathF.Sqrt(internalInfo.DistanceSquared),
                 SearchPoint = point,
                 ClosestPointOnPath = internalInfo.PointOnLine
             };
@@ -617,13 +617,13 @@ namespace SixLabors.Shapes
                         // all points are common, shouldn't match anything
                         results.Add(
                             new PointData
-                                {
-                                    Point = points[0],
-                                    Orientation = Orientation.Colinear,
-                                    Segment = new Segment(points[0], points[1]),
-                                    Length = 0,
-                                    TotalLength = 0
-                                });
+                            {
+                                Point = points[0],
+                                Orientation = Orientation.Colinear,
+                                Segment = new Segment(points[0], points[1]),
+                                Length = 0,
+                                TotalLength = 0
+                            });
                         return results.ToArray();
                     }
                 }
@@ -634,12 +634,12 @@ namespace SixLabors.Shapes
 
                 results.Add(
                     new PointData
-                        {
-                            Point = points[0],
-                            Orientation = CalulateOrientation(lastPoint, points[0], points[1]),
-                            Length = Vector2.Distance(lastPoint, points[0]),
-                            TotalLength = 0
-                        });
+                    {
+                        Point = points[0],
+                        Orientation = CalulateOrientation(lastPoint, points[0], points[1]),
+                        Length = Vector2.Distance(lastPoint, points[0]),
+                        TotalLength = 0
+                    });
 
                 lastPoint = points[0];
             }
diff --git a/src/SixLabors.Shapes/RectangularPolygon.cs b/src/SixLabors.Shapes/RectangularPolygon.cs
index c980564..7400125 100644
--- a/src/SixLabors.Shapes/RectangularPolygon.cs
+++ b/src/SixLabors.Shapes/RectangularPolygon.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors and contributors.
+// Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
 using System;
@@ -301,7 +301,7 @@ namespace SixLabors.Shapes
                 return new SegmentInfo
                 {
                     Point = new Vector2(this.Left + distanceAlongPath, this.Top),
-                    Angle = (float)Math.PI
+                    Angle = MathF.PI
                 };
             }
             else
@@ -313,7 +313,7 @@ namespace SixLabors.Shapes
                     return new SegmentInfo
                     {
                         Point = new Vector2(this.Right, this.Top + distanceAlongPath),
-                        Angle = -(float)Math.PI / 2
+                        Angle = -MathF.PI / 2
                     };
                 }
                 else
@@ -499,4 +499,4 @@ namespace SixLabors.Shapes
             return hashCode;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/SixLabors.Shapes/SixLabors.Shapes.csproj b/src/SixLabors.Shapes/SixLabors.Shapes.csproj
index e258cb4..9fd4d85 100644
--- a/src/SixLabors.Shapes/SixLabors.Shapes.csproj
+++ b/src/SixLabors.Shapes/SixLabors.Shapes.csproj
@@ -31,6 +31,15 @@
     <Compile Include="..\Shared\*.cs" Exclude="bin\**;obj\**;**\*.xproj;packages\**" />
   </ItemGroup>
 
+  <!-- TODO: Include .NETSTANDARD2.1 when released-->
+  <PropertyGroup Condition=" $(TargetFramework.StartsWith('netcoreapp2')) ">
+    <DefineConstants>$(DefineConstants);SUPPORTS_MATHF</DefineConstants>
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" $(TargetFramework.StartsWith('netcoreapp2.1')) ">
+    <DefineConstants>$(DefineConstants);SUPPORTS_HASHCODE</DefineConstants>
+  </PropertyGroup>
+
   <ItemGroup>
     <Compile Include="..\..\shared-infrastructure\**\*.cs" />
   </ItemGroup>
@@ -42,9 +51,9 @@
   <ItemGroup>
     <AdditionalFiles Include="..\..\shared-infrastructure\stylecop.json" />
   </ItemGroup>
-  
+
   <ItemGroup>
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
-    <PackageReference Include="SixLabors.Core" Version="1.0.0-dev000137" />
+    <PackageReference Include="SixLabors.Core" Version="1.0.0-dev000141" />
   </ItemGroup>
 </Project>
\ No newline at end of file