diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcd7ccdd9..177897124 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 - add autocapture support for UIKit ([#224](https://github.com/PostHog/posthog-ios/pull/224))
 
+## 3.13.3 - 2024-10-25
+
+- fix race condition in PostHogFileBackedQueue.deleteFiles ([#218](https://github.com/PostHog/posthog-ios/pull/218))
+
+## 3.13.2 - 2024-10-18
+
+- add missing capture method for objC with groups overload ([#217](https://github.com/PostHog/posthog-ios/pull/217))
+
 ## 3.13.1 - 2024-10-16
 
 - add optional distinctId parameter to capture methods ([#216](https://github.com/PostHog/posthog-ios/pull/216))
diff --git a/PostHog.podspec b/PostHog.podspec
index f6999130a..b70a331e6 100644
--- a/PostHog.podspec
+++ b/PostHog.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "PostHog"
-  s.version          = "3.13.1"
+  s.version          = "3.13.3"
   s.summary          = "The hassle-free way to add posthog to your iOS app."
 
   s.description      = <<-DESC
diff --git a/PostHog/PostHogFileBackedQueue.swift b/PostHog/PostHogFileBackedQueue.swift
index 24adf0582..ab9160709 100644
--- a/PostHog/PostHogFileBackedQueue.swift
+++ b/PostHog/PostHogFileBackedQueue.swift
@@ -100,10 +100,14 @@ class PostHogFileBackedQueue {
 
     private func deleteFiles(_ count: Int) {
         for _ in 0 ..< count {
-            if items.isEmpty { return }
-            let removed = items.remove(at: 0) // We always remove from the top of the queue
-
-            deleteSafely(queue.appendingPathComponent(removed))
+            if let removed: String = _items.mutate({ items in
+                if items.isEmpty {
+                    return nil
+                }
+                return items.remove(at: 0) // We always remove from the top of the queue
+            }) {
+                deleteSafely(queue.appendingPathComponent(removed))
+            }
         }
     }
 }
diff --git a/PostHog/PostHogSDK.swift b/PostHog/PostHogSDK.swift
index 768d7467f..bacc3e66b 100644
--- a/PostHog/PostHogSDK.swift
+++ b/PostHog/PostHogSDK.swift
@@ -489,7 +489,7 @@ let maxRetryDelay = 30.0
     }
 
     @objc public func capture(_ event: String) {
-        capture(event, properties: nil, userProperties: nil, userPropertiesSetOnce: nil, groups: nil)
+        capture(event, distinctId: nil, properties: nil, userProperties: nil, userPropertiesSetOnce: nil, groups: nil)
     }
 
     @objc(captureWithEvent:properties:)
@@ -524,6 +524,16 @@ let maxRetryDelay = 30.0
         return false
     }
 
+    @objc(captureWithEvent:properties:userProperties:userPropertiesSetOnce:groups:)
+    public func capture(_ event: String,
+                        properties: [String: Any]? = nil,
+                        userProperties: [String: Any]? = nil,
+                        userPropertiesSetOnce: [String: Any]? = nil,
+                        groups: [String: String]? = nil)
+    {
+        capture(event, distinctId: nil, properties: properties, userProperties: userProperties, userPropertiesSetOnce: userPropertiesSetOnce, groups: groups)
+    }
+
     @objc(captureWithEvent:distinctId:properties:userProperties:userPropertiesSetOnce:groups:)
     public func capture(_ event: String,
                         distinctId: String? = nil,
diff --git a/PostHog/PostHogVersion.swift b/PostHog/PostHogVersion.swift
index fdfa2b270..fa42f2d51 100644
--- a/PostHog/PostHogVersion.swift
+++ b/PostHog/PostHogVersion.swift
@@ -9,7 +9,7 @@ import Foundation
 
 // if you change this, make sure to also change it in the podspec and check if the script scripts/bump-version.sh still works
 // This property is internal only
-public var postHogVersion = "3.13.1"
+public var postHogVersion = "3.13.3"
 
 // This property is internal only
 public var postHogSdkName = "posthog-ios"
diff --git a/PostHog/Utils/ReadWriteLock.swift b/PostHog/Utils/ReadWriteLock.swift
index cd7d05934..c782a15f0 100644
--- a/PostHog/Utils/ReadWriteLock.swift
+++ b/PostHog/Utils/ReadWriteLock.swift
@@ -50,10 +50,13 @@ public final class ReadWriteLock<Value> {
     /// The lock will be acquired once for writing before invoking the closure.
     ///
     /// - Parameter closure: The closure with the mutable value.
-    public func mutate(_ closure: (inout Value) -> Void) {
+    @discardableResult
+    public func mutate<T>(_ closure: (inout Value) -> T) -> T {
         pthread_rwlock_wrlock(&rwlock)
-        closure(&value)
-        pthread_rwlock_unlock(&rwlock)
+        defer {
+            pthread_rwlock_unlock(&rwlock)
+        }
+        return closure(&value)
     }
 }