diff --git a/.github/doxygen/Doxyfile b/.github/doxygen/Doxyfile
index 067bc80c..c686eff2 100644
--- a/.github/doxygen/Doxyfile
+++ b/.github/doxygen/Doxyfile
@@ -48,7 +48,7 @@ PROJECT_NAME           = "LLM for Unity"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER = v2.5.2
+PROJECT_NUMBER = v2.5.3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fefb893..7e7d5a3e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v2.5.3
+#### 🐛 Fixes
+
+- fix RAG for iOS (PR: #354)
+
+
 ## v2.5.2
 #### 🚀 Features
 
diff --git a/CHANGELOG.release.md b/CHANGELOG.release.md
index 86892386..63729c46 100644
--- a/CHANGELOG.release.md
+++ b/CHANGELOG.release.md
@@ -1,5 +1,4 @@
-### 🚀 Features
+### 🐛 Fixes
 
-- Support Android x86-64 architecture (Magic Leap 2) (PR: #344)
-- Combine ARM and Intel architectures of macOS (PR: #345)
+- fix RAG for iOS (PR: #354)
 
diff --git a/Runtime/LLMUnitySetup.cs b/Runtime/LLMUnitySetup.cs
index afcb5010..b68092cf 100644
--- a/Runtime/LLMUnitySetup.cs
+++ b/Runtime/LLMUnitySetup.cs
@@ -101,7 +101,7 @@ public class LLMUnitySetup
     {
         // DON'T CHANGE! the version is autocompleted with a GitHub action
         /// <summary> LLM for Unity version </summary>
-        public static string Version = "v2.5.2";
+        public static string Version = "v2.5.3";
         /// <summary> LlamaLib version </summary>
         public static string LlamaLibVersion = "v1.2.6";
         /// <summary> LlamaLib release url </summary>
diff --git a/Runtime/RAG/usearch/NativeMethods.cs b/Runtime/RAG/usearch/NativeMethods.cs
index 34ba5898..9f38f04f 100644
--- a/Runtime/RAG/usearch/NativeMethods.cs
+++ b/Runtime/RAG/usearch/NativeMethods.cs
@@ -11,7 +11,11 @@ namespace Cloud.Unum.USearch
 {
     public static class NativeMethods
     {
+#if UNITY_IOS
+        private const string LibraryName = "__Internal";
+#else
         private const string LibraryName = "libusearch_c";
+#endif
 
         [DllImport(LibraryName, CallingConvention = CallingConvention.Cdecl)]
         public static extern usearch_index_t usearch_init(ref IndexOptions options, out usearch_error_t error);
diff --git a/Runtime/RAG/usearch/USearchIndex.cs b/Runtime/RAG/usearch/USearchIndex.cs
index 9c9b39c4..9603e8ac 100644
--- a/Runtime/RAG/usearch/USearchIndex.cs
+++ b/Runtime/RAG/usearch/USearchIndex.cs
@@ -318,17 +318,10 @@ private int Search<T>(T[] queryVector, int count, out ulong[] keys, out float[]
                 }
                 else
                 {
-                    if (Application.platform == RuntimePlatform.Android)
+                    lock (filterLock)
                     {
-                        lock (filterLock)
-                        {
-                            FilterFunction = filter;
-                            matches = checked((int)usearch_filtered_search(this._index, queryVectorPtr, scalarKind, (UIntPtr)count, StaticFilter, IntPtr.Zero, keys, distances, out error));
-                        }
-                    }
-                    else
-                    {
-                        matches = checked((int)usearch_filtered_search(this._index, queryVectorPtr, scalarKind, (UIntPtr)count, (int key, IntPtr state) => filter(key), IntPtr.Zero, keys, distances, out error));
+                        FilterFunction = filter;
+                        matches = checked((int)usearch_filtered_search(this._index, queryVectorPtr, scalarKind, (UIntPtr)count, StaticFilter, IntPtr.Zero, keys, distances, out error));
                     }
                 }
                 HandleError(error);
diff --git a/VERSION b/VERSION
index f6dcb643..82f42e9d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v2.5.2
+v2.5.3
diff --git a/package.json b/package.json
index 7095e04a..7bae12fc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ai.undream.llm",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "displayName": "LLM for Unity",
   "description": "LLM for Unity allows to run and distribute Large Language Models (LLMs) in the Unity engine.",
   "unity": "2022.3",