diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1dfa6882..71cdb31a 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.
 
+## [7.0.3](https://github.com/RebeccaStevens/deepmerge-ts/compare/v7.0.2...v7.0.3) (2024-06-06)
+
+
+### Bug Fixes
+
+* merge functions' types ([ca94270](https://github.com/RebeccaStevens/deepmerge-ts/commit/ca94270da73d0a071043ef0e8936b17c444e40ab))
+
 ## [7.0.2](https://github.com/RebeccaStevens/deepmerge-ts/compare/v7.0.1...v7.0.2) (2024-06-03)
 
 
diff --git a/dist/deno/deepmerge-into.ts b/dist/deno/deepmerge-into.ts
index b822bf90..0abcdb2d 100644
--- a/dist/deno/deepmerge-into.ts
+++ b/dist/deno/deepmerge-into.ts
@@ -3,7 +3,7 @@ import {
   defaultFilterValues,
   defaultMetaDataUpdater,
 } from "./defaults/general.ts";
-import * as defaultMergeIntoFunctions from "./defaults/into.ts";
+import { mergeIntoFunctions as defaultMergeIntoFunctions } from "./defaults/into.ts";
 import {
   type DeepMergeBuiltInMetaData,
   type DeepMergeFunctionsDefaultURIs,
diff --git a/dist/deno/deepmerge.ts b/dist/deno/deepmerge.ts
index f4d39983..409074ff 100644
--- a/dist/deno/deepmerge.ts
+++ b/dist/deno/deepmerge.ts
@@ -3,7 +3,7 @@ import {
   defaultFilterValues,
   defaultMetaDataUpdater,
 } from "./defaults/general.ts";
-import * as defaultMergeFunctions from "./defaults/vanilla.ts";
+import { mergeFunctions as defaultMergeFunctions } from "./defaults/vanilla.ts";
 import {
   type DeepMergeBuiltInMetaData,
   type DeepMergeFunctionsDefaultURIs,
diff --git a/dist/deno/defaults/into.ts b/dist/deno/defaults/into.ts
index 65ae1a9a..e8b3edd8 100644
--- a/dist/deno/defaults/into.ts
+++ b/dist/deno/defaults/into.ts
@@ -10,11 +10,11 @@ import { getIterableOfIterables, getKeys, objectHasProperty } from "../utils.ts"
  * The default merge functions.
  */
 export type MergeFunctions = {
-  mergeRecords: typeof mergeRecords;
-  mergeArrays: typeof mergeArrays;
-  mergeSets: typeof mergeSets;
-  mergeMaps: typeof mergeMaps;
-  mergeOthers: typeof mergeOthers;
+  mergeRecords: typeof mergeRecordsInto;
+  mergeArrays: typeof mergeArraysInto;
+  mergeSets: typeof mergeSetsInto;
+  mergeMaps: typeof mergeMapsInto;
+  mergeOthers: typeof mergeOthersInto;
 };
 
 /**
@@ -23,7 +23,7 @@ export type MergeFunctions = {
  * @param m_target - The result will be mutated into this record
  * @param values - The records (including the target's value if there is one).
  */
-export function mergeRecords<
+function mergeRecordsInto<
   Ts extends ReadonlyArray<Record<PropertyKey, unknown>>,
   U extends DeepMergeIntoFunctionUtils<M, MM>,
   M,
@@ -79,7 +79,7 @@ export function mergeRecords<
  * @param m_target - The result will be mutated into this array
  * @param values - The arrays (including the target's value if there is one).
  */
-export function mergeArrays<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(
+function mergeArraysInto<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(
   m_target: Reference<unknown[]>,
   values: Ts,
 ): void {
@@ -92,7 +92,7 @@ export function mergeArrays<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(
  * @param m_target - The result will be mutated into this set
  * @param values - The sets (including the target's value if there is one).
  */
-export function mergeSets<
+function mergeSetsInto<
   Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>,
 >(m_target: Reference<Set<unknown>>, values: Ts): void {
   for (const value of getIterableOfIterables(values.slice(1))) {
@@ -106,7 +106,7 @@ export function mergeSets<
  * @param m_target - The result will be mutated into this map
  * @param values - The maps (including the target's value if there is one).
  */
-export function mergeMaps<
+function mergeMapsInto<
   Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>,
 >(m_target: Reference<Map<unknown, unknown>>, values: Ts): void {
   for (const [key, value] of getIterableOfIterables(values.slice(1))) {
@@ -117,9 +117,20 @@ export function mergeMaps<
 /**
  * Set the target to the last non-undefined value.
  */
-export function mergeOthers<Ts extends ReadonlyArray<unknown>>(
+function mergeOthersInto<Ts extends ReadonlyArray<unknown>>(
   m_target: Reference<unknown>,
   values: Ts,
 ) {
   m_target.value = values.at(-1);
 }
+
+/**
+ * The merge functions.
+ */
+export const mergeIntoFunctions = {
+  mergeRecords: mergeRecordsInto,
+  mergeArrays: mergeArraysInto,
+  mergeSets: mergeSetsInto,
+  mergeMaps: mergeMapsInto,
+  mergeOthers: mergeOthersInto,
+};
diff --git a/dist/deno/defaults/vanilla.ts b/dist/deno/defaults/vanilla.ts
index a3bd2d60..d56ea72f 100644
--- a/dist/deno/defaults/vanilla.ts
+++ b/dist/deno/defaults/vanilla.ts
@@ -27,7 +27,7 @@ export type MergeFunctions = {
  *
  * @param values - The records.
  */
-export function mergeRecords<
+function mergeRecords<
   Ts extends ReadonlyArray<Record<PropertyKey, unknown>>,
   U extends DeepMergeUtils<M, MM>,
   Fs extends DeepMergeFunctionsURIs,
@@ -88,7 +88,7 @@ export function mergeRecords<
  *
  * @param values - The arrays.
  */
-export function mergeArrays<
+function mergeArrays<
   Ts extends ReadonlyArray<ReadonlyArray<unknown>>,
   Fs extends DeepMergeFunctionsURIs,
   M,
@@ -101,9 +101,9 @@ export function mergeArrays<
  *
  * @param values - The sets.
  */
-export function mergeSets<
-  Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>,
->(values: Ts): DeepMergeSetsDefaultHKT<Ts> {
+function mergeSets<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(
+  values: Ts,
+): DeepMergeSetsDefaultHKT<Ts> {
   return new Set(getIterableOfIterables(values)) as DeepMergeSetsDefaultHKT<Ts>;
 }
 
@@ -112,7 +112,7 @@ export function mergeSets<
  *
  * @param values - The maps.
  */
-export function mergeMaps<
+function mergeMaps<
   Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>,
 >(values: Ts): DeepMergeMapsDefaultHKT<Ts> {
   return new Map(getIterableOfIterables(values)) as DeepMergeMapsDefaultHKT<Ts>;
@@ -121,6 +121,17 @@ export function mergeMaps<
 /**
  * Get the last non-undefined value in the given array.
  */
-export function mergeOthers<Ts extends ReadonlyArray<unknown>>(values: Ts) {
+function mergeOthers<Ts extends ReadonlyArray<unknown>>(values: Ts) {
   return values.at(-1);
 }
+
+/**
+ * The merge functions.
+ */
+export const mergeFunctions = {
+  mergeRecords,
+  mergeArrays,
+  mergeSets,
+  mergeMaps,
+  mergeOthers,
+};
diff --git a/dist/node/index.cjs b/dist/node/index.cjs
index 50955e04..0d835033 100644
--- a/dist/node/index.cjs
+++ b/dist/node/index.cjs
@@ -151,7 +151,7 @@ function isRecord(value) {
  *
  * @param values - The records.
  */
-function mergeRecords$2(values, utils, meta) {
+function mergeRecords$1(values, utils, meta) {
     const result = {};
     for (const key of getKeys(values)) {
         const propValues = [];
@@ -190,7 +190,7 @@ function mergeRecords$2(values, utils, meta) {
  *
  * @param values - The arrays.
  */
-function mergeArrays$2(values) {
+function mergeArrays$1(values) {
     return values.flat();
 }
 /**
@@ -198,7 +198,7 @@ function mergeArrays$2(values) {
  *
  * @param values - The sets.
  */
-function mergeSets$2(values) {
+function mergeSets$1(values) {
     return new Set(getIterableOfIterables(values));
 }
 /**
@@ -206,24 +206,25 @@ function mergeSets$2(values) {
  *
  * @param values - The maps.
  */
-function mergeMaps$2(values) {
+function mergeMaps$1(values) {
     return new Map(getIterableOfIterables(values));
 }
 /**
  * Get the last non-undefined value in the given array.
  */
-function mergeOthers$2(values) {
+function mergeOthers$1(values) {
     return values.at(-1);
 }
-
-var defaultMergeFunctions = /*#__PURE__*/Object.freeze({
-  __proto__: null,
-  mergeArrays: mergeArrays$2,
-  mergeMaps: mergeMaps$2,
-  mergeOthers: mergeOthers$2,
-  mergeRecords: mergeRecords$2,
-  mergeSets: mergeSets$2
-});
+/**
+ * The merge functions.
+ */
+const mergeFunctions = {
+    mergeRecords: mergeRecords$1,
+    mergeArrays: mergeArrays$1,
+    mergeSets: mergeSets$1,
+    mergeMaps: mergeMaps$1,
+    mergeOthers: mergeOthers$1,
+};
 
 /**
  * Deeply merge objects.
@@ -250,13 +251,13 @@ function deepmergeCustom(options, rootMetaData) {
  */
 function getUtils(options, customizedDeepmerge) {
     return {
-        defaultMergeFunctions,
+        defaultMergeFunctions: mergeFunctions,
         mergeFunctions: {
-            ...defaultMergeFunctions,
+            ...mergeFunctions,
             ...Object.fromEntries(Object.entries(options)
-                .filter(([key, option]) => Object.hasOwn(defaultMergeFunctions, key))
+                .filter(([key, option]) => Object.hasOwn(mergeFunctions, key))
                 .map(([key, option]) => option === false
-                ? [key, mergeOthers$2]
+                ? [key, mergeFunctions.mergeOthers]
                 : [key, option])),
         },
         metaDataUpdater: (options.metaDataUpdater ??
@@ -280,7 +281,7 @@ function mergeUnknowns(values, utils, meta) {
         return undefined;
     }
     if (filteredValues.length === 1) {
-        return mergeOthers$1(filteredValues, utils, meta);
+        return mergeOthers(filteredValues, utils, meta);
     }
     const type = getObjectType(filteredValues[0]);
     if (type !== 0 /* ObjectType.NOT */ && type !== 5 /* ObjectType.OTHER */) {
@@ -288,24 +289,24 @@ function mergeUnknowns(values, utils, meta) {
             if (getObjectType(filteredValues[m_index]) === type) {
                 continue;
             }
-            return mergeOthers$1(filteredValues, utils, meta);
+            return mergeOthers(filteredValues, utils, meta);
         }
     }
     switch (type) {
         case 1 /* ObjectType.RECORD */: {
-            return mergeRecords$1(filteredValues, utils, meta);
+            return mergeRecords(filteredValues, utils, meta);
         }
         case 2 /* ObjectType.ARRAY */: {
-            return mergeArrays$1(filteredValues, utils, meta);
+            return mergeArrays(filteredValues, utils, meta);
         }
         case 3 /* ObjectType.SET */: {
-            return mergeSets$1(filteredValues, utils, meta);
+            return mergeSets(filteredValues, utils, meta);
         }
         case 4 /* ObjectType.MAP */: {
-            return mergeMaps$1(filteredValues, utils, meta);
+            return mergeMaps(filteredValues, utils, meta);
         }
         default: {
-            return mergeOthers$1(filteredValues, utils, meta);
+            return mergeOthers(filteredValues, utils, meta);
         }
     }
 }
@@ -314,7 +315,7 @@ function mergeUnknowns(values, utils, meta) {
  *
  * @param values - The records.
  */
-function mergeRecords$1(values, utils, meta) {
+function mergeRecords(values, utils, meta) {
     const result = utils.mergeFunctions.mergeRecords(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -330,7 +331,7 @@ function mergeRecords$1(values, utils, meta) {
  *
  * @param values - The arrays.
  */
-function mergeArrays$1(values, utils, meta) {
+function mergeArrays(values, utils, meta) {
     const result = utils.mergeFunctions.mergeArrays(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -346,7 +347,7 @@ function mergeArrays$1(values, utils, meta) {
  *
  * @param values - The sets.
  */
-function mergeSets$1(values, utils, meta) {
+function mergeSets(values, utils, meta) {
     const result = utils.mergeFunctions.mergeSets(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -361,7 +362,7 @@ function mergeSets$1(values, utils, meta) {
  *
  * @param values - The maps.
  */
-function mergeMaps$1(values, utils, meta) {
+function mergeMaps(values, utils, meta) {
     const result = utils.mergeFunctions.mergeMaps(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -376,7 +377,7 @@ function mergeMaps$1(values, utils, meta) {
  *
  * @param values - The other things.
  */
-function mergeOthers$1(values, utils, meta) {
+function mergeOthers(values, utils, meta) {
     const result = utils.mergeFunctions.mergeOthers(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -394,7 +395,7 @@ function mergeOthers$1(values, utils, meta) {
  * @param m_target - The result will be mutated into this record
  * @param values - The records (including the target's value if there is one).
  */
-function mergeRecords(m_target, values, utils, meta) {
+function mergeRecordsInto$1(m_target, values, utils, meta) {
     for (const key of getKeys(values)) {
         const propValues = [];
         for (const value of values) {
@@ -430,7 +431,7 @@ function mergeRecords(m_target, values, utils, meta) {
  * @param m_target - The result will be mutated into this array
  * @param values - The arrays (including the target's value if there is one).
  */
-function mergeArrays(m_target, values) {
+function mergeArraysInto$1(m_target, values) {
     m_target.value.push(...values.slice(1).flat());
 }
 /**
@@ -439,7 +440,7 @@ function mergeArrays(m_target, values) {
  * @param m_target - The result will be mutated into this set
  * @param values - The sets (including the target's value if there is one).
  */
-function mergeSets(m_target, values) {
+function mergeSetsInto$1(m_target, values) {
     for (const value of getIterableOfIterables(values.slice(1))) {
         m_target.value.add(value);
     }
@@ -450,7 +451,7 @@ function mergeSets(m_target, values) {
  * @param m_target - The result will be mutated into this map
  * @param values - The maps (including the target's value if there is one).
  */
-function mergeMaps(m_target, values) {
+function mergeMapsInto$1(m_target, values) {
     for (const [key, value] of getIterableOfIterables(values.slice(1))) {
         m_target.value.set(key, value);
     }
@@ -458,18 +459,19 @@ function mergeMaps(m_target, values) {
 /**
  * Set the target to the last non-undefined value.
  */
-function mergeOthers(m_target, values) {
+function mergeOthersInto$1(m_target, values) {
     m_target.value = values.at(-1);
 }
-
-var defaultMergeIntoFunctions = /*#__PURE__*/Object.freeze({
-  __proto__: null,
-  mergeArrays: mergeArrays,
-  mergeMaps: mergeMaps,
-  mergeOthers: mergeOthers,
-  mergeRecords: mergeRecords,
-  mergeSets: mergeSets
-});
+/**
+ * The merge functions.
+ */
+const mergeIntoFunctions = {
+    mergeRecords: mergeRecordsInto$1,
+    mergeArrays: mergeArraysInto$1,
+    mergeSets: mergeSetsInto$1,
+    mergeMaps: mergeMapsInto$1,
+    mergeOthers: mergeOthersInto$1,
+};
 
 function deepmergeInto(target, ...objects) {
     return void deepmergeIntoCustom({})(target, ...objects);
@@ -491,13 +493,13 @@ function deepmergeIntoCustom(options, rootMetaData) {
  */
 function getIntoUtils(options, customizedDeepmergeInto) {
     return {
-        defaultMergeFunctions: defaultMergeIntoFunctions,
+        defaultMergeFunctions: mergeIntoFunctions,
         mergeFunctions: {
-            ...defaultMergeIntoFunctions,
+            ...mergeIntoFunctions,
             ...Object.fromEntries(Object.entries(options)
-                .filter(([key, option]) => Object.hasOwn(defaultMergeIntoFunctions, key))
+                .filter(([key, option]) => Object.hasOwn(mergeIntoFunctions, key))
                 .map(([key, option]) => option === false
-                ? [key, mergeOthers]
+                ? [key, mergeIntoFunctions.mergeOthers]
                 : [key, option])),
         },
         metaDataUpdater: (options.metaDataUpdater ??
diff --git a/dist/node/index.d.cts b/dist/node/index.d.cts
index 6b1ddd24..6f4d114a 100644
--- a/dist/node/index.d.cts
+++ b/dist/node/index.d.cts
@@ -586,11 +586,11 @@ type GetDeepMergeFunctionsURIs<PMF extends Partial<DeepMergeFunctionsURIs>> = Re
  * The default merge functions.
  */
 type MergeFunctions = {
-    mergeRecords: typeof mergeRecords;
-    mergeArrays: typeof mergeArrays;
-    mergeSets: typeof mergeSets;
-    mergeMaps: typeof mergeMaps;
-    mergeOthers: typeof mergeOthers;
+    mergeRecords: typeof mergeRecordsInto;
+    mergeArrays: typeof mergeArraysInto;
+    mergeSets: typeof mergeSetsInto;
+    mergeMaps: typeof mergeMapsInto;
+    mergeOthers: typeof mergeOthersInto;
 };
 /**
  * The default strategy to merge records into a target record.
@@ -598,32 +598,32 @@ type MergeFunctions = {
  * @param m_target - The result will be mutated into this record
  * @param values - The records (including the target's value if there is one).
  */
-declare function mergeRecords<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>, U extends DeepMergeIntoFunctionUtils<M, MM>, M, MM extends DeepMergeBuiltInMetaData = DeepMergeBuiltInMetaData>(m_target: Reference<Record<PropertyKey, unknown>>, values: Ts, utils: U, meta: M | undefined): void;
+declare function mergeRecordsInto<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>, U extends DeepMergeIntoFunctionUtils<M, MM>, M, MM extends DeepMergeBuiltInMetaData = DeepMergeBuiltInMetaData>(m_target: Reference<Record<PropertyKey, unknown>>, values: Ts, utils: U, meta: M | undefined): void;
 /**
  * The default strategy to merge arrays into a target array.
  *
  * @param m_target - The result will be mutated into this array
  * @param values - The arrays (including the target's value if there is one).
  */
-declare function mergeArrays<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(m_target: Reference<unknown[]>, values: Ts): void;
+declare function mergeArraysInto<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(m_target: Reference<unknown[]>, values: Ts): void;
 /**
  * The default strategy to merge sets into a target set.
  *
  * @param m_target - The result will be mutated into this set
  * @param values - The sets (including the target's value if there is one).
  */
-declare function mergeSets<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(m_target: Reference<Set<unknown>>, values: Ts): void;
+declare function mergeSetsInto<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(m_target: Reference<Set<unknown>>, values: Ts): void;
 /**
  * The default strategy to merge maps into a target map.
  *
  * @param m_target - The result will be mutated into this map
  * @param values - The maps (including the target's value if there is one).
  */
-declare function mergeMaps<Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>>(m_target: Reference<Map<unknown, unknown>>, values: Ts): void;
+declare function mergeMapsInto<Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>>(m_target: Reference<Map<unknown, unknown>>, values: Ts): void;
 /**
  * Set the target to the last non-undefined value.
  */
-declare function mergeOthers<Ts extends ReadonlyArray<unknown>>(m_target: Reference<unknown>, values: Ts): void;
+declare function mergeOthersInto<Ts extends ReadonlyArray<unknown>>(m_target: Reference<unknown>, values: Ts): void;
 type MergeIntoFunctions = MergeFunctions;
 /**
  * The default merge functions.
@@ -635,6 +635,34 @@ type MergeFunctions$0 = {
     mergeMaps: typeof mergeMaps;
     mergeOthers: typeof mergeOthers;
 };
+/**
+ * The default strategy to merge records.
+ *
+ * @param values - The records.
+ */
+declare function mergeRecords<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>, U extends DeepMergeUtils<M, MM>, Fs extends DeepMergeFunctionsURIs, M, MM extends DeepMergeBuiltInMetaData = DeepMergeBuiltInMetaData>(values: Ts, utils: U, meta: M | undefined): DeepMergeRecordsDefaultHKT<Ts, Fs, M>;
+/**
+ * The default strategy to merge arrays.
+ *
+ * @param values - The arrays.
+ */
+declare function mergeArrays<Ts extends ReadonlyArray<ReadonlyArray<unknown>>, Fs extends DeepMergeFunctionsURIs, M>(values: Ts): DeepMergeArraysDefaultHKT<Ts, Fs, M>;
+/**
+ * The default strategy to merge sets.
+ *
+ * @param values - The sets.
+ */
+declare function mergeSets<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(values: Ts): DeepMergeSetsDefaultHKT<Ts>;
+/**
+ * The default strategy to merge maps.
+ *
+ * @param values - The maps.
+ */
+declare function mergeMaps<Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>>(values: Ts): DeepMergeMapsDefaultHKT<Ts>;
+/**
+ * Get the last non-undefined value in the given array.
+ */
+declare function mergeOthers<Ts extends ReadonlyArray<unknown>>(values: Ts): unknown;
 /**
  * The options the user can pass to customize deepmerge.
  */
diff --git a/dist/node/index.d.mts b/dist/node/index.d.mts
index 6b1ddd24..6f4d114a 100644
--- a/dist/node/index.d.mts
+++ b/dist/node/index.d.mts
@@ -586,11 +586,11 @@ type GetDeepMergeFunctionsURIs<PMF extends Partial<DeepMergeFunctionsURIs>> = Re
  * The default merge functions.
  */
 type MergeFunctions = {
-    mergeRecords: typeof mergeRecords;
-    mergeArrays: typeof mergeArrays;
-    mergeSets: typeof mergeSets;
-    mergeMaps: typeof mergeMaps;
-    mergeOthers: typeof mergeOthers;
+    mergeRecords: typeof mergeRecordsInto;
+    mergeArrays: typeof mergeArraysInto;
+    mergeSets: typeof mergeSetsInto;
+    mergeMaps: typeof mergeMapsInto;
+    mergeOthers: typeof mergeOthersInto;
 };
 /**
  * The default strategy to merge records into a target record.
@@ -598,32 +598,32 @@ type MergeFunctions = {
  * @param m_target - The result will be mutated into this record
  * @param values - The records (including the target's value if there is one).
  */
-declare function mergeRecords<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>, U extends DeepMergeIntoFunctionUtils<M, MM>, M, MM extends DeepMergeBuiltInMetaData = DeepMergeBuiltInMetaData>(m_target: Reference<Record<PropertyKey, unknown>>, values: Ts, utils: U, meta: M | undefined): void;
+declare function mergeRecordsInto<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>, U extends DeepMergeIntoFunctionUtils<M, MM>, M, MM extends DeepMergeBuiltInMetaData = DeepMergeBuiltInMetaData>(m_target: Reference<Record<PropertyKey, unknown>>, values: Ts, utils: U, meta: M | undefined): void;
 /**
  * The default strategy to merge arrays into a target array.
  *
  * @param m_target - The result will be mutated into this array
  * @param values - The arrays (including the target's value if there is one).
  */
-declare function mergeArrays<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(m_target: Reference<unknown[]>, values: Ts): void;
+declare function mergeArraysInto<Ts extends ReadonlyArray<ReadonlyArray<unknown>>>(m_target: Reference<unknown[]>, values: Ts): void;
 /**
  * The default strategy to merge sets into a target set.
  *
  * @param m_target - The result will be mutated into this set
  * @param values - The sets (including the target's value if there is one).
  */
-declare function mergeSets<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(m_target: Reference<Set<unknown>>, values: Ts): void;
+declare function mergeSetsInto<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(m_target: Reference<Set<unknown>>, values: Ts): void;
 /**
  * The default strategy to merge maps into a target map.
  *
  * @param m_target - The result will be mutated into this map
  * @param values - The maps (including the target's value if there is one).
  */
-declare function mergeMaps<Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>>(m_target: Reference<Map<unknown, unknown>>, values: Ts): void;
+declare function mergeMapsInto<Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>>(m_target: Reference<Map<unknown, unknown>>, values: Ts): void;
 /**
  * Set the target to the last non-undefined value.
  */
-declare function mergeOthers<Ts extends ReadonlyArray<unknown>>(m_target: Reference<unknown>, values: Ts): void;
+declare function mergeOthersInto<Ts extends ReadonlyArray<unknown>>(m_target: Reference<unknown>, values: Ts): void;
 type MergeIntoFunctions = MergeFunctions;
 /**
  * The default merge functions.
@@ -635,6 +635,34 @@ type MergeFunctions$0 = {
     mergeMaps: typeof mergeMaps;
     mergeOthers: typeof mergeOthers;
 };
+/**
+ * The default strategy to merge records.
+ *
+ * @param values - The records.
+ */
+declare function mergeRecords<Ts extends ReadonlyArray<Record<PropertyKey, unknown>>, U extends DeepMergeUtils<M, MM>, Fs extends DeepMergeFunctionsURIs, M, MM extends DeepMergeBuiltInMetaData = DeepMergeBuiltInMetaData>(values: Ts, utils: U, meta: M | undefined): DeepMergeRecordsDefaultHKT<Ts, Fs, M>;
+/**
+ * The default strategy to merge arrays.
+ *
+ * @param values - The arrays.
+ */
+declare function mergeArrays<Ts extends ReadonlyArray<ReadonlyArray<unknown>>, Fs extends DeepMergeFunctionsURIs, M>(values: Ts): DeepMergeArraysDefaultHKT<Ts, Fs, M>;
+/**
+ * The default strategy to merge sets.
+ *
+ * @param values - The sets.
+ */
+declare function mergeSets<Ts extends ReadonlyArray<Readonly<ReadonlySet<unknown>>>>(values: Ts): DeepMergeSetsDefaultHKT<Ts>;
+/**
+ * The default strategy to merge maps.
+ *
+ * @param values - The maps.
+ */
+declare function mergeMaps<Ts extends ReadonlyArray<Readonly<ReadonlyMap<unknown, unknown>>>>(values: Ts): DeepMergeMapsDefaultHKT<Ts>;
+/**
+ * Get the last non-undefined value in the given array.
+ */
+declare function mergeOthers<Ts extends ReadonlyArray<unknown>>(values: Ts): unknown;
 /**
  * The options the user can pass to customize deepmerge.
  */
diff --git a/dist/node/index.mjs b/dist/node/index.mjs
index d71554bb..643cef67 100644
--- a/dist/node/index.mjs
+++ b/dist/node/index.mjs
@@ -149,7 +149,7 @@ function isRecord(value) {
  *
  * @param values - The records.
  */
-function mergeRecords$2(values, utils, meta) {
+function mergeRecords$1(values, utils, meta) {
     const result = {};
     for (const key of getKeys(values)) {
         const propValues = [];
@@ -188,7 +188,7 @@ function mergeRecords$2(values, utils, meta) {
  *
  * @param values - The arrays.
  */
-function mergeArrays$2(values) {
+function mergeArrays$1(values) {
     return values.flat();
 }
 /**
@@ -196,7 +196,7 @@ function mergeArrays$2(values) {
  *
  * @param values - The sets.
  */
-function mergeSets$2(values) {
+function mergeSets$1(values) {
     return new Set(getIterableOfIterables(values));
 }
 /**
@@ -204,24 +204,25 @@ function mergeSets$2(values) {
  *
  * @param values - The maps.
  */
-function mergeMaps$2(values) {
+function mergeMaps$1(values) {
     return new Map(getIterableOfIterables(values));
 }
 /**
  * Get the last non-undefined value in the given array.
  */
-function mergeOthers$2(values) {
+function mergeOthers$1(values) {
     return values.at(-1);
 }
-
-var defaultMergeFunctions = /*#__PURE__*/Object.freeze({
-  __proto__: null,
-  mergeArrays: mergeArrays$2,
-  mergeMaps: mergeMaps$2,
-  mergeOthers: mergeOthers$2,
-  mergeRecords: mergeRecords$2,
-  mergeSets: mergeSets$2
-});
+/**
+ * The merge functions.
+ */
+const mergeFunctions = {
+    mergeRecords: mergeRecords$1,
+    mergeArrays: mergeArrays$1,
+    mergeSets: mergeSets$1,
+    mergeMaps: mergeMaps$1,
+    mergeOthers: mergeOthers$1,
+};
 
 /**
  * Deeply merge objects.
@@ -248,13 +249,13 @@ function deepmergeCustom(options, rootMetaData) {
  */
 function getUtils(options, customizedDeepmerge) {
     return {
-        defaultMergeFunctions,
+        defaultMergeFunctions: mergeFunctions,
         mergeFunctions: {
-            ...defaultMergeFunctions,
+            ...mergeFunctions,
             ...Object.fromEntries(Object.entries(options)
-                .filter(([key, option]) => Object.hasOwn(defaultMergeFunctions, key))
+                .filter(([key, option]) => Object.hasOwn(mergeFunctions, key))
                 .map(([key, option]) => option === false
-                ? [key, mergeOthers$2]
+                ? [key, mergeFunctions.mergeOthers]
                 : [key, option])),
         },
         metaDataUpdater: (options.metaDataUpdater ??
@@ -278,7 +279,7 @@ function mergeUnknowns(values, utils, meta) {
         return undefined;
     }
     if (filteredValues.length === 1) {
-        return mergeOthers$1(filteredValues, utils, meta);
+        return mergeOthers(filteredValues, utils, meta);
     }
     const type = getObjectType(filteredValues[0]);
     if (type !== 0 /* ObjectType.NOT */ && type !== 5 /* ObjectType.OTHER */) {
@@ -286,24 +287,24 @@ function mergeUnknowns(values, utils, meta) {
             if (getObjectType(filteredValues[m_index]) === type) {
                 continue;
             }
-            return mergeOthers$1(filteredValues, utils, meta);
+            return mergeOthers(filteredValues, utils, meta);
         }
     }
     switch (type) {
         case 1 /* ObjectType.RECORD */: {
-            return mergeRecords$1(filteredValues, utils, meta);
+            return mergeRecords(filteredValues, utils, meta);
         }
         case 2 /* ObjectType.ARRAY */: {
-            return mergeArrays$1(filteredValues, utils, meta);
+            return mergeArrays(filteredValues, utils, meta);
         }
         case 3 /* ObjectType.SET */: {
-            return mergeSets$1(filteredValues, utils, meta);
+            return mergeSets(filteredValues, utils, meta);
         }
         case 4 /* ObjectType.MAP */: {
-            return mergeMaps$1(filteredValues, utils, meta);
+            return mergeMaps(filteredValues, utils, meta);
         }
         default: {
-            return mergeOthers$1(filteredValues, utils, meta);
+            return mergeOthers(filteredValues, utils, meta);
         }
     }
 }
@@ -312,7 +313,7 @@ function mergeUnknowns(values, utils, meta) {
  *
  * @param values - The records.
  */
-function mergeRecords$1(values, utils, meta) {
+function mergeRecords(values, utils, meta) {
     const result = utils.mergeFunctions.mergeRecords(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -328,7 +329,7 @@ function mergeRecords$1(values, utils, meta) {
  *
  * @param values - The arrays.
  */
-function mergeArrays$1(values, utils, meta) {
+function mergeArrays(values, utils, meta) {
     const result = utils.mergeFunctions.mergeArrays(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -344,7 +345,7 @@ function mergeArrays$1(values, utils, meta) {
  *
  * @param values - The sets.
  */
-function mergeSets$1(values, utils, meta) {
+function mergeSets(values, utils, meta) {
     const result = utils.mergeFunctions.mergeSets(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -359,7 +360,7 @@ function mergeSets$1(values, utils, meta) {
  *
  * @param values - The maps.
  */
-function mergeMaps$1(values, utils, meta) {
+function mergeMaps(values, utils, meta) {
     const result = utils.mergeFunctions.mergeMaps(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -374,7 +375,7 @@ function mergeMaps$1(values, utils, meta) {
  *
  * @param values - The other things.
  */
-function mergeOthers$1(values, utils, meta) {
+function mergeOthers(values, utils, meta) {
     const result = utils.mergeFunctions.mergeOthers(values, utils, meta);
     if (result === actions.defaultMerge ||
         (utils.useImplicitDefaultMerging &&
@@ -392,7 +393,7 @@ function mergeOthers$1(values, utils, meta) {
  * @param m_target - The result will be mutated into this record
  * @param values - The records (including the target's value if there is one).
  */
-function mergeRecords(m_target, values, utils, meta) {
+function mergeRecordsInto$1(m_target, values, utils, meta) {
     for (const key of getKeys(values)) {
         const propValues = [];
         for (const value of values) {
@@ -428,7 +429,7 @@ function mergeRecords(m_target, values, utils, meta) {
  * @param m_target - The result will be mutated into this array
  * @param values - The arrays (including the target's value if there is one).
  */
-function mergeArrays(m_target, values) {
+function mergeArraysInto$1(m_target, values) {
     m_target.value.push(...values.slice(1).flat());
 }
 /**
@@ -437,7 +438,7 @@ function mergeArrays(m_target, values) {
  * @param m_target - The result will be mutated into this set
  * @param values - The sets (including the target's value if there is one).
  */
-function mergeSets(m_target, values) {
+function mergeSetsInto$1(m_target, values) {
     for (const value of getIterableOfIterables(values.slice(1))) {
         m_target.value.add(value);
     }
@@ -448,7 +449,7 @@ function mergeSets(m_target, values) {
  * @param m_target - The result will be mutated into this map
  * @param values - The maps (including the target's value if there is one).
  */
-function mergeMaps(m_target, values) {
+function mergeMapsInto$1(m_target, values) {
     for (const [key, value] of getIterableOfIterables(values.slice(1))) {
         m_target.value.set(key, value);
     }
@@ -456,18 +457,19 @@ function mergeMaps(m_target, values) {
 /**
  * Set the target to the last non-undefined value.
  */
-function mergeOthers(m_target, values) {
+function mergeOthersInto$1(m_target, values) {
     m_target.value = values.at(-1);
 }
-
-var defaultMergeIntoFunctions = /*#__PURE__*/Object.freeze({
-  __proto__: null,
-  mergeArrays: mergeArrays,
-  mergeMaps: mergeMaps,
-  mergeOthers: mergeOthers,
-  mergeRecords: mergeRecords,
-  mergeSets: mergeSets
-});
+/**
+ * The merge functions.
+ */
+const mergeIntoFunctions = {
+    mergeRecords: mergeRecordsInto$1,
+    mergeArrays: mergeArraysInto$1,
+    mergeSets: mergeSetsInto$1,
+    mergeMaps: mergeMapsInto$1,
+    mergeOthers: mergeOthersInto$1,
+};
 
 function deepmergeInto(target, ...objects) {
     return void deepmergeIntoCustom({})(target, ...objects);
@@ -489,13 +491,13 @@ function deepmergeIntoCustom(options, rootMetaData) {
  */
 function getIntoUtils(options, customizedDeepmergeInto) {
     return {
-        defaultMergeFunctions: defaultMergeIntoFunctions,
+        defaultMergeFunctions: mergeIntoFunctions,
         mergeFunctions: {
-            ...defaultMergeIntoFunctions,
+            ...mergeIntoFunctions,
             ...Object.fromEntries(Object.entries(options)
-                .filter(([key, option]) => Object.hasOwn(defaultMergeIntoFunctions, key))
+                .filter(([key, option]) => Object.hasOwn(mergeIntoFunctions, key))
                 .map(([key, option]) => option === false
-                ? [key, mergeOthers]
+                ? [key, mergeIntoFunctions.mergeOthers]
                 : [key, option])),
         },
         metaDataUpdater: (options.metaDataUpdater ??