diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5c18240..723291ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 # Changelog
 All notable changes to this project will be documented in this file. Dates are displayed in UTC.
 
+## [7.0.1](https://github.com/RebeccaStevens/deepmerge-ts/compare/v7.0.0...v7.0.1) (2024-05-21)
+
+
+### Bug Fixes
+
+* handling of partial types ([1832bd0](https://github.com/RebeccaStevens/deepmerge-ts/commit/1832bd071b925c49a2d5d1c944703916ee4348d4)), closes [#476](https://github.com/RebeccaStevens/deepmerge-ts/issues/476)
+
 # [7.0.0](https://github.com/RebeccaStevens/deepmerge-ts/compare/v6.0.3...v7.0.0) (2024-05-20)
 
 
diff --git a/dist/deno/README.md b/dist/deno/README.md
index c0cd28bf..795020ef 100644
--- a/dist/deno/README.md
+++ b/dist/deno/README.md
@@ -98,7 +98,19 @@ const y = {
   ]),
 };
 
-const merged = deepmerge(x, y);
+const z = {
+  record: {
+    prop1: undefined,
+    prop3: undefined,
+    prop2: undefined,
+    prop4: undefined,
+  },
+  array: undefined,
+  set: undefined,
+  map: undefined,
+};
+
+const merged = deepmerge(x, y, z);
 
 console.log(merged);
 
@@ -109,6 +121,7 @@ console.log(merged);
 //     "prop1": "changed",
 //     "prop2": "value2",
 //     "prop3": "value3",
+//     "prop4": undefined,
 //   },
 //   "array": Array [1, 2, 3, 2, 3, 4],
 //   "set": Set { 1, 2, 3, 4 },
diff --git a/dist/deno/types/defaults.ts b/dist/deno/types/defaults.ts
index a8096baa..fad23b48 100644
--- a/dist/deno/types/defaults.ts
+++ b/dist/deno/types/defaults.ts
@@ -55,10 +55,13 @@ export type DeepMergeFunctionsDefaultURIs = Readonly<{
   DeepMergeFilterValuesURI: DeepMergeFilterValuesDefaultURI;
 }>;
 
-type RecordEntries<T extends Record<PropertyKey, unknown>> = TuplifyUnion<
-  {
-    [K in keyof T]: [K, T[K]];
-  }[keyof T]
+type RecordEntries<T extends Record<PropertyKey, unknown>> = FilterOut<
+  TuplifyUnion<
+    {
+      [K in keyof T]: [K, T[K]];
+    }[keyof T]
+  >,
+  undefined
 >;
 
 type RecordMeta = Record<PropertyKey, RecordPropertyMeta>;
@@ -79,16 +82,13 @@ type RecordsToRecordMeta<
   [I in keyof Ts]: RecordToRecordMeta<Ts[I]>;
 }>;
 
-type RecordToRecordMeta<T extends Record<PropertyKey, unknown>> =
-  object extends T
-    ? never
-    : {
-        [K in keyof T]-?: {
-          key: K;
-          value: Required<T>[K];
-          optional: KeyIsOptional<K, T>;
-        };
-      };
+type RecordToRecordMeta<T extends Record<PropertyKey, unknown>> = {
+  [K in keyof T]-?: {
+    key: K;
+    value: Required<T>[K];
+    optional: KeyIsOptional<K, T>;
+  };
+};
 
 /**
  * Deep merge records.
@@ -119,9 +119,16 @@ type DeepMergeRecordMetaDefaultHKTProps<
 type MergeRecordMeta<RecordMetas extends ReadonlyArray<RecordMeta>> =
   GroupValuesByKey<
     FlattenTuples<
-      TransposeTuple<{
-        [I in keyof RecordMetas]: TransposeTuple<RecordEntries<RecordMetas[I]>>;
-      }>
+      TransposeTuple<
+        FilterOut<
+          {
+            [I in keyof RecordMetas]: TransposeTuple<
+              RecordEntries<RecordMetas[I]>
+            >;
+          },
+          readonly []
+        >
+      >
     >
   >;
 
diff --git a/dist/node/index.d.cts b/dist/node/index.d.cts
index ce5894d3..6b1ddd24 100644
--- a/dist/node/index.d.cts
+++ b/dist/node/index.d.cts
@@ -390,12 +390,12 @@ type DeepMergeFunctionsDefaultURIs = Readonly<{
     DeepMergeOthersURI: DeepMergeLeafURI;
     DeepMergeFilterValuesURI: DeepMergeFilterValuesDefaultURI;
 }>;
-type RecordEntries<T extends Record<PropertyKey, unknown>> = TuplifyUnion<{
+type RecordEntries<T extends Record<PropertyKey, unknown>> = FilterOut<TuplifyUnion<{
     [K in keyof T]: [
         K,
         T[K]
     ];
-}[keyof T]>;
+}[keyof T]>, undefined>;
 type RecordMeta = Record<PropertyKey, RecordPropertyMeta>;
 type RecordPropertyMeta<Key extends PropertyKey = PropertyKey, Value = unknown, Optional extends boolean = boolean> = {
     key: Key;
@@ -405,7 +405,7 @@ type RecordPropertyMeta<Key extends PropertyKey = PropertyKey, Value = unknown,
 type RecordsToRecordMeta<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>> = FilterOutNever<{
     [I in keyof Ts]: RecordToRecordMeta<Ts[I]>;
 }>;
-type RecordToRecordMeta<T extends Record<PropertyKey, unknown>> = object extends T ? never : {
+type RecordToRecordMeta<T extends Record<PropertyKey, unknown>> = {
     [K in keyof T]-?: {
         key: K;
         value: Required<T>[K];
@@ -420,9 +420,10 @@ type DeepMergeRecordsDefaultHKT<Ts extends ReadonlyArray<unknown>, Fs extends De
  * Deep merge record props.
  */
 type DeepMergeRecordMetaDefaultHKTProps<RecordMetas, Fs extends DeepMergeFunctionsURIs, M> = RecordMetas extends ReadonlyArray<RecordMeta> ? CreateRecordFromMeta<MergeRecordMeta<RecordMetas>, Fs, M> : never;
-type MergeRecordMeta<RecordMetas extends ReadonlyArray<RecordMeta>> = GroupValuesByKey<FlattenTuples<TransposeTuple<{
+type MergeRecordMeta<RecordMetas extends ReadonlyArray<RecordMeta>> = GroupValuesByKey<FlattenTuples<TransposeTuple<FilterOut<{
     [I in keyof RecordMetas]: TransposeTuple<RecordEntries<RecordMetas[I]>>;
-}>>>;
+}, readonly [
+]>>>>;
 type GroupValuesByKey<Ts> = Ts extends readonly [
     infer Keys extends ReadonlyArray<PropertyKey>,
     infer Values
diff --git a/dist/node/index.d.mts b/dist/node/index.d.mts
index ce5894d3..6b1ddd24 100644
--- a/dist/node/index.d.mts
+++ b/dist/node/index.d.mts
@@ -390,12 +390,12 @@ type DeepMergeFunctionsDefaultURIs = Readonly<{
     DeepMergeOthersURI: DeepMergeLeafURI;
     DeepMergeFilterValuesURI: DeepMergeFilterValuesDefaultURI;
 }>;
-type RecordEntries<T extends Record<PropertyKey, unknown>> = TuplifyUnion<{
+type RecordEntries<T extends Record<PropertyKey, unknown>> = FilterOut<TuplifyUnion<{
     [K in keyof T]: [
         K,
         T[K]
     ];
-}[keyof T]>;
+}[keyof T]>, undefined>;
 type RecordMeta = Record<PropertyKey, RecordPropertyMeta>;
 type RecordPropertyMeta<Key extends PropertyKey = PropertyKey, Value = unknown, Optional extends boolean = boolean> = {
     key: Key;
@@ -405,7 +405,7 @@ type RecordPropertyMeta<Key extends PropertyKey = PropertyKey, Value = unknown,
 type RecordsToRecordMeta<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>> = FilterOutNever<{
     [I in keyof Ts]: RecordToRecordMeta<Ts[I]>;
 }>;
-type RecordToRecordMeta<T extends Record<PropertyKey, unknown>> = object extends T ? never : {
+type RecordToRecordMeta<T extends Record<PropertyKey, unknown>> = {
     [K in keyof T]-?: {
         key: K;
         value: Required<T>[K];
@@ -420,9 +420,10 @@ type DeepMergeRecordsDefaultHKT<Ts extends ReadonlyArray<unknown>, Fs extends De
  * Deep merge record props.
  */
 type DeepMergeRecordMetaDefaultHKTProps<RecordMetas, Fs extends DeepMergeFunctionsURIs, M> = RecordMetas extends ReadonlyArray<RecordMeta> ? CreateRecordFromMeta<MergeRecordMeta<RecordMetas>, Fs, M> : never;
-type MergeRecordMeta<RecordMetas extends ReadonlyArray<RecordMeta>> = GroupValuesByKey<FlattenTuples<TransposeTuple<{
+type MergeRecordMeta<RecordMetas extends ReadonlyArray<RecordMeta>> = GroupValuesByKey<FlattenTuples<TransposeTuple<FilterOut<{
     [I in keyof RecordMetas]: TransposeTuple<RecordEntries<RecordMetas[I]>>;
-}>>>;
+}, readonly [
+]>>>>;
 type GroupValuesByKey<Ts> = Ts extends readonly [
     infer Keys extends ReadonlyArray<PropertyKey>,
     infer Values