diff --git a/docs/release-notes.md b/docs/release-notes.md
index 3f7d5198..efab21d5 100644
--- a/docs/release-notes.md
+++ b/docs/release-notes.md
@@ -25,6 +25,10 @@
 
 * For SMAPI developers:
   * The web API now returns an update alert in two new cases: any newer unofficial update (previously only shown if the mod was incompatible), and a newer prerelease version if the installed non-prerelease version is broken (previously only shown if the installed version was prerelease).
+  * Internal refactoring to simplify game updates:
+    * Reorganised SMAPI core to reduce coupling to `Game1` and make it easier to navigate.
+    * `FieldToPropertyRewriter` now auto-rewrites broken field references into properties if possible, so we no longer need to map fields manually.
+    * `FieldReplaceRewriter` now supports mapping to a different target type.
   * Internal refactoring to simplify future game updates.
 
 ## 3.6.2
diff --git a/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs b/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs
index 8043b13a..9166ab86 100644
--- a/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs
+++ b/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs
@@ -25,18 +25,28 @@ namespace StardewModdingAPI.Framework.ModLoading.Rewriters
         /*********
         ** Public methods
         *********/
+        /// <summary>Construct an instance.</summary>
+        /// <param name="fromType">The type whose field to rewrite.</param>
+        /// <param name="fromFieldName">The field name to rewrite.</param>
+        /// <param name="toType">The new type which will have the field.</param>
+        /// <param name="toFieldName">The new field name to reference.</param>
+        public FieldReplaceRewriter(Type fromType, string fromFieldName, Type toType, string toFieldName)
+            : base(defaultPhrase: $"{fromType.FullName}.{fromFieldName} field")
+        {
+            this.Type = fromType;
+            this.FromFieldName = fromFieldName;
+            this.ToField = toType.GetField(toFieldName);
+            if (this.ToField == null)
+                throw new InvalidOperationException($"The {toType.FullName} class doesn't have a {toFieldName} field.");
+        }
+
         /// <summary>Construct an instance.</summary>
         /// <param name="type">The type whose field to rewrite.</param>
         /// <param name="fromFieldName">The field name to rewrite.</param>
         /// <param name="toFieldName">The new field name to reference.</param>
         public FieldReplaceRewriter(Type type, string fromFieldName, string toFieldName)
-            : base(defaultPhrase: $"{type.FullName}.{fromFieldName} field")
+            : this(type, fromFieldName, type, toFieldName)
         {
-            this.Type = type;
-            this.FromFieldName = fromFieldName;
-            this.ToField = type.GetField(toFieldName);
-            if (this.ToField == null)
-                throw new InvalidOperationException($"The {type.FullName} class doesn't have a {toFieldName} field.");
         }
 
         /// <summary>Rewrite a CIL instruction reference if needed.</summary>