diff --git a/config.json b/config.json
index adfe4eafa..9d181667b 100644
--- a/config.json
+++ b/config.json
@@ -4591,7 +4591,7 @@
         "groupId": "com.squareup.okhttp3",
         "artifactId": "okhttp",
         "version": "5.3.2",
-        "nugetVersion": "5.3.2.2",
+        "nugetVersion": "5.3.2.3",
         "nugetId": "Square.OkHttp3",
         "extraDependencies": "com.squareup.okhttp3.okhttp-android",
         "type": "androidlibrary",
@@ -4601,7 +4601,7 @@
         "groupId": "com.squareup.okhttp3",
         "artifactId": "okhttp-android",
         "version": "5.3.2",
-        "nugetVersion": "5.3.2.2",
+        "nugetVersion": "5.3.2.3",
         "nugetId": "Square.OkHttp3.Android",
         "type": "androidlibrary",
         "mavenRepositoryType": "MavenCentral"
@@ -4628,7 +4628,7 @@
         "groupId": "com.squareup.okhttp3",
         "artifactId": "okhttp-jvm",
         "version": "5.3.2",
-        "nugetVersion": "5.3.2.2",
+        "nugetVersion": "5.3.2.3",
         "nugetId": "Square.OkHttp3.JVM",
         "type": "androidlibrary",
         "mavenRepositoryType": "MavenCentral"
diff --git a/docs/artifact-list-with-versions.md b/docs/artifact-list-with-versions.md
index 9096015b0..7bbf30254 100644
--- a/docs/artifact-list-with-versions.md
+++ b/docs/artifact-list-with-versions.md
@@ -605,11 +605,11 @@
 | 598|com.google.zxing:core                                                 |3.5.4               |Xamarin.Google.ZXing.Core                                             |3.5.4.2             |
 | 599|com.squareup:javapoet                                                 |1.13.0              |Square.JavaPoet                                                       |1.13.0.19           |
 | 600|com.squareup.okhttp3:logging-interceptor                              |5.3.2               |Square.OkHttp3.LoggingInterceptor                                     |5.3.2.2             |
-| 601|com.squareup.okhttp3:okhttp                                           |5.3.2               |Square.OkHttp3                                                        |5.3.2.2             |
-| 602|com.squareup.okhttp3:okhttp-android                                   |5.3.2               |Square.OkHttp3.Android                                                |5.3.2.2             |
+| 601|com.squareup.okhttp3:okhttp                                           |5.3.2               |Square.OkHttp3                                                        |5.3.2.3             |
+| 602|com.squareup.okhttp3:okhttp-android                                   |5.3.2               |Square.OkHttp3.Android                                                |5.3.2.3             |
 | 603|com.squareup.okhttp3:okhttp-brotli                                    |5.3.2               |Square.OkHttp3.OkHttp.Brotli                                          |5.3.2.2             |
 | 604|com.squareup.okhttp3:okhttp-java-net-cookiejar                        |5.3.2               |Square.OkHttp3.JavaNetCookieJar                                       |5.3.2.2             |
-| 605|com.squareup.okhttp3:okhttp-jvm                                       |5.3.2               |Square.OkHttp3.JVM                                                    |5.3.2.2             |
+| 605|com.squareup.okhttp3:okhttp-jvm                                       |5.3.2               |Square.OkHttp3.JVM                                                    |5.3.2.3             |
 | 606|com.squareup.okhttp3:okhttp-tls                                       |5.3.2               |Square.OkHttp3.OkHttp.TLS                                             |5.3.2.2             |
 | 607|com.squareup.okhttp3:okhttp-urlconnection                             |5.3.2               |Square.OkHttp3.UrlConnection                                          |5.3.2.2             |
 | 608|com.squareup.okio:okio                                                |3.17.0              |Square.OkIO                                                           |3.17.0              |
diff --git a/source/com.squareup.okhttp3/okhttp-android/Additions/Call.cs b/source/com.squareup.okhttp3/okhttp-android/Additions/Call.cs
new file mode 100644
index 000000000..584ed13ff
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-android/Additions/Call.cs
@@ -0,0 +1,66 @@
+using System;
+using Android.Runtime;
+using System.Threading.Tasks;
+
+namespace Square.OkHttp3
+{
+    public static class CallExtensions
+    {
+        public static Task<Response> ExecuteAsync(this ICall call)
+        {
+            var tcs = new TaskCompletionSource<Response>();
+
+            call.Enqueue(
+                (c, response) =>
+                {
+                    tcs.SetResult(response);
+                },
+                (c, exception) =>
+                {
+                    if (call.IsCanceled)
+                    {
+                        tcs.SetCanceled();
+                    }
+                    else
+                    {
+                        tcs.SetException(exception);
+                    }
+                });
+
+            return tcs.Task;
+        }
+        
+        public static void Enqueue(this ICall call, Action<ICall, Response> onResponse, Action<ICall, Java.IO.IOException> onFailure)
+        {
+            call.Enqueue(new ActionCallback(onResponse, onFailure));
+        }
+
+        private class ActionCallback : Java.Lang.Object, global::Square.OkHttp3.ICallback
+        {
+            private readonly Action<ICall, Response> onResponse;
+            private readonly Action<ICall, Java.IO.IOException> onFailure;
+
+            public ActionCallback(Action<ICall, Response> onResponse, Action<ICall, Java.IO.IOException> onFailure)
+            {
+                this.onResponse = onResponse;
+                this.onFailure = onFailure;
+            }
+
+            public void OnResponse(ICall call, Response response)
+            {
+                if (onResponse != null)
+                {
+                    onResponse(call, response);
+                }
+            }
+
+            public void OnFailure(ICall call, Java.IO.IOException exception)
+            {
+                if (onFailure != null)
+                {
+                    onFailure(call, exception);
+                }
+            }
+        }
+    }
+}
diff --git a/source/com.squareup.okhttp3/okhttp-android/Additions/Dispatcher.cs b/source/com.squareup.okhttp3/okhttp-android/Additions/Dispatcher.cs
new file mode 100644
index 000000000..877e0222e
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-android/Additions/Dispatcher.cs
@@ -0,0 +1,8 @@
+namespace Square.OkHttp3
+{
+    partial class Dispatcher
+    {
+        public void SetIdleCallback(Java.Lang.IRunnable idleCallback) =>
+            IdleCallback = idleCallback;
+    }
+}
diff --git a/source/com.squareup.okhttp3/okhttp-android/Additions/OkHttpClient.Builder.cs b/source/com.squareup.okhttp3/okhttp-android/Additions/OkHttpClient.Builder.cs
new file mode 100644
index 000000000..56495b888
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-android/Additions/OkHttpClient.Builder.cs
@@ -0,0 +1,103 @@
+using System;
+using System.Collections.Generic;
+using Java.Net;
+using Javax.Net.Ssl;
+
+namespace Square.OkHttp3
+{
+    partial class OkHttpClient
+    {
+        partial class Builder
+        {
+            public Builder AddInterceptor(Func<IInterceptorChain, Response> interceptor)
+            {
+                return AddInterceptor(new InterceptorImpl(interceptor));
+            }
+
+            public Builder AddNetworkInterceptor(Func<IInterceptorChain, Response> interceptor)
+            {
+                return AddNetworkInterceptor(new InterceptorImpl(interceptor));
+            }
+
+            public Builder Authenticator(Func<Route, Response, Request> authenticate)
+            {
+                return Authenticator(new AuthenticatorImpl(authenticate));
+            }
+
+            public Builder ProxyAuthenticator(Func<Route, Response, Request> authenticate)
+            {
+                return ProxyAuthenticator(new AuthenticatorImpl(authenticate));
+            }
+
+            public Builder Dns(Func<string, IList<InetAddress>> lookup)
+            {
+                return Dns(new DnsImpl(lookup));
+            }
+
+            public Builder HostnameVerifier(Func<string, ISSLSession, bool> verify)
+            {
+                return HostnameVerifier(new HostnameVerifierImpl(verify));
+            }
+
+            private class AuthenticatorImpl : Java.Lang.Object, IAuthenticator
+            {
+                private readonly Func<Route, Response, Request> authenticate;
+
+                public AuthenticatorImpl(Func<Route, Response, Request> authenticate)
+                {
+                    this.authenticate = authenticate;
+                }
+
+                public Request Authenticate(Route p0, Response p1)
+                {
+                    return authenticate(p0, p1);
+                }
+            }
+
+            private class InterceptorImpl : Java.Lang.Object, IInterceptor
+            {
+                private readonly Func<IInterceptorChain, Response> interceptor;
+
+                public InterceptorImpl(Func<IInterceptorChain, Response> interceptor)
+                {
+                    this.interceptor = interceptor;
+                }
+
+                public Response Intercept(IInterceptorChain p0)
+                {
+                    return interceptor(p0);
+                }
+            }
+
+            private class DnsImpl : Java.Lang.Object, IDns
+            {
+                private readonly Func<string, IList<InetAddress>> lookup;
+
+                public DnsImpl(Func<string, IList<InetAddress>> lookup)
+                {
+                    this.lookup = lookup;
+                }
+
+                public IList<InetAddress> Lookup(string p0)
+                {
+                    return lookup(p0);
+                }
+            }
+
+            private class HostnameVerifierImpl : Java.Lang.Object, IHostnameVerifier
+            {
+                private readonly Func<string, ISSLSession, bool> verify;
+
+                public HostnameVerifierImpl(Func<string, ISSLSession, bool> verify)
+                {
+                    this.verify = verify;
+                }
+
+                public bool Verify(string hostname, ISSLSession session)
+                {
+                    return verify(hostname, session);
+                }
+            }
+        }
+    }
+}
diff --git a/source/com.squareup.okhttp3/okhttp-android/Additions/ResponseBody.cs b/source/com.squareup.okhttp3/okhttp-android/Additions/ResponseBody.cs
new file mode 100644
index 000000000..ccaee621c
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-android/Additions/ResponseBody.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Threading.Tasks;
+using Android.Runtime;
+
+namespace Square.OkHttp3
+{
+	partial class ResponseBody
+	{
+		public Task<byte[]> BytesAsync()
+		{
+			return Task.Run(() => Bytes());
+		}
+
+		public Task<string> StringAsync()
+		{
+			return Task.Run(() => String());
+		}
+	}
+}
diff --git a/source/com.squareup.okhttp3/okhttp-android/PublicAPI/PublicAPI.Unshipped.txt b/source/com.squareup.okhttp3/okhttp-android/PublicAPI/PublicAPI.Unshipped.txt
index 4c457ab65..f8ff4e967 100644
--- a/source/com.squareup.okhttp3/okhttp-android/PublicAPI/PublicAPI.Unshipped.txt
+++ b/source/com.squareup.okhttp3/okhttp-android/PublicAPI/PublicAPI.Unshipped.txt
@@ -60,6 +60,7 @@ Square.OkHttp3.CacheControl.NoStore() -> bool
 Square.OkHttp3.CacheControl.NoTransform() -> bool
 Square.OkHttp3.CacheControl.OnlyIfCached() -> bool
 Square.OkHttp3.CacheControl.SMaxAgeSeconds() -> int
+Square.OkHttp3.CallExtensions
 Square.OkHttp3.CertificatePinner
 Square.OkHttp3.CertificatePinner.Builder
 Square.OkHttp3.CertificatePinner.Builder.Add(string! pattern, params string![]! pins) -> Square.OkHttp3.CertificatePinner.Builder!
@@ -159,6 +160,7 @@ Square.OkHttp3.Dispatcher.QueuedCalls() -> System.Collections.Generic.IList<Squa
 Square.OkHttp3.Dispatcher.QueuedCallsCount() -> int
 Square.OkHttp3.Dispatcher.RunningCalls() -> System.Collections.Generic.IList<Square.OkHttp3.ICall!>!
 Square.OkHttp3.Dispatcher.RunningCallsCount() -> int
+Square.OkHttp3.Dispatcher.SetIdleCallback(Java.Lang.IRunnable! idleCallback) -> void
 Square.OkHttp3.Dns
 Square.OkHttp3.DnsConsts
 Square.OkHttp3.EventListener
@@ -377,8 +379,11 @@ Square.OkHttp3.OkHttpClient.Address(Square.OkHttp3.HttpUrl! url) -> Square.OkHtt
 Square.OkHttp3.OkHttpClient.Authenticator() -> Square.OkHttp3.IAuthenticator!
 Square.OkHttp3.OkHttpClient.Builder
 Square.OkHttp3.OkHttpClient.Builder.AddInterceptor(Square.OkHttp3.IInterceptor! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.AddInterceptor(System.Func<Square.OkHttp3.IInterceptorChain!, Square.OkHttp3.Response!>! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.AddNetworkInterceptor(Square.OkHttp3.IInterceptor! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.AddNetworkInterceptor(System.Func<Square.OkHttp3.IInterceptorChain!, Square.OkHttp3.Response!>! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Authenticator(Square.OkHttp3.IAuthenticator! authenticator) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.Authenticator(System.Func<Square.OkHttp3.Route!, Square.OkHttp3.Response!, Square.OkHttp3.Request!>! authenticate) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Build() -> Square.OkHttp3.OkHttpClient!
 Square.OkHttp3.OkHttpClient.Builder.Builder() -> void
 Square.OkHttp3.OkHttpClient.Builder.Cache(Square.OkHttp3.Cache? cache) -> Square.OkHttp3.OkHttpClient.Builder!
@@ -394,12 +399,14 @@ Square.OkHttp3.OkHttpClient.Builder.ConnectionSpecs(System.Collections.Generic.I
 Square.OkHttp3.OkHttpClient.Builder.CookieJar(Square.OkHttp3.ICookieJar! cookieJar) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Dispatcher(Square.OkHttp3.Dispatcher! dispatcher) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Dns(Square.OkHttp3.IDns! dns) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.Dns(System.Func<string!, System.Collections.Generic.IList<Java.Net.InetAddress!>!>! lookup) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.EventListener(Square.OkHttp3.EventListener! eventListener) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.EventListenerFactory(Square.OkHttp3.EventListener.IFactory! eventListenerFactory) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.FastFallback(bool fastFallback) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.FollowRedirects(bool followRedirects) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.FollowSslRedirects(bool followProtocolRedirects) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.HostnameVerifier(Javax.Net.Ssl.IHostnameVerifier! hostnameVerifier) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.HostnameVerifier(System.Func<string!, Javax.Net.Ssl.ISSLSession!, bool>! verify) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Interceptors() -> System.Collections.Generic.IList<Square.OkHttp3.IInterceptor!>!
 Square.OkHttp3.OkHttpClient.Builder.MinWebSocketMessageToCompress(long bytes) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.NetworkInterceptors() -> System.Collections.Generic.IList<Square.OkHttp3.IInterceptor!>!
@@ -409,6 +416,7 @@ Square.OkHttp3.OkHttpClient.Builder.PingInterval_LRDsOJo(long _v_c_kotlin_time_D
 Square.OkHttp3.OkHttpClient.Builder.Protocols(System.Collections.Generic.IList<Square.OkHttp3.Protocol!>! protocols) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Proxy(Java.Net.Proxy? proxy) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ProxyAuthenticator(Square.OkHttp3.IAuthenticator! proxyAuthenticator) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.ProxyAuthenticator(System.Func<Square.OkHttp3.Route!, Square.OkHttp3.Response!, Square.OkHttp3.Request!>! authenticate) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ProxySelector(Java.Net.ProxySelector! proxySelector) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ReadTimeout(Java.Time.Duration! duration) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ReadTimeout(long timeout, Java.Util.Concurrent.TimeUnit! unit) -> Square.OkHttp3.OkHttpClient.Builder!
@@ -516,10 +524,12 @@ Square.OkHttp3.ResponseBody
 Square.OkHttp3.ResponseBody.ByteStream() -> System.IO.Stream!
 Square.OkHttp3.ResponseBody.ByteString() -> Square.OkIO.ByteString!
 Square.OkHttp3.ResponseBody.Bytes() -> byte[]!
+Square.OkHttp3.ResponseBody.BytesAsync() -> System.Threading.Tasks.Task<byte[]!>!
 Square.OkHttp3.ResponseBody.CharStream() -> Java.IO.Reader!
 Square.OkHttp3.ResponseBody.ResponseBody() -> void
 Square.OkHttp3.ResponseBody.ResponseBody(nint javaReference, Android.Runtime.JniHandleOwnership transfer) -> void
 Square.OkHttp3.ResponseBody.String() -> string!
+Square.OkHttp3.ResponseBody.StringAsync() -> System.Threading.Tasks.Task<string!>!
 Square.OkHttp3.Route
 Square.OkHttp3.Route.Address() -> Square.OkHttp3.Address!
 Square.OkHttp3.Route.Proxy() -> Java.Net.Proxy!
@@ -611,6 +621,8 @@ static Square.OkHttp3.Cache.Key(Square.OkHttp3.HttpUrl! url) -> string!
 static Square.OkHttp3.CacheControl.ForceCache.get -> Square.OkHttp3.CacheControl!
 static Square.OkHttp3.CacheControl.ForceNetwork.get -> Square.OkHttp3.CacheControl!
 static Square.OkHttp3.CacheControl.Parse(Square.OkHttp3.Headers! headers) -> Square.OkHttp3.CacheControl!
+static Square.OkHttp3.CallExtensions.Enqueue(this Square.OkHttp3.ICall! call, System.Action<Square.OkHttp3.ICall!, Square.OkHttp3.Response!>! onResponse, System.Action<Square.OkHttp3.ICall!, Java.IO.IOException!>! onFailure) -> void
+static Square.OkHttp3.CallExtensions.ExecuteAsync(this Square.OkHttp3.ICall! call) -> System.Threading.Tasks.Task<Square.OkHttp3.Response!>!
 static Square.OkHttp3.CertificatePinner.Default.get -> Square.OkHttp3.CertificatePinner!
 static Square.OkHttp3.CertificatePinner.InvokePin(Java.Security.Cert.Certificate! certificate) -> string!
 static Square.OkHttp3.CertificatePinner.Sha1Hash(Java.Security.Cert.X509Certificate! obj) -> Square.OkIO.ByteString!
diff --git a/source/com.squareup.okhttp3/okhttp-jvm/Additions/Call.cs b/source/com.squareup.okhttp3/okhttp-jvm/Additions/Call.cs
new file mode 100644
index 000000000..584ed13ff
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-jvm/Additions/Call.cs
@@ -0,0 +1,66 @@
+using System;
+using Android.Runtime;
+using System.Threading.Tasks;
+
+namespace Square.OkHttp3
+{
+    public static class CallExtensions
+    {
+        public static Task<Response> ExecuteAsync(this ICall call)
+        {
+            var tcs = new TaskCompletionSource<Response>();
+
+            call.Enqueue(
+                (c, response) =>
+                {
+                    tcs.SetResult(response);
+                },
+                (c, exception) =>
+                {
+                    if (call.IsCanceled)
+                    {
+                        tcs.SetCanceled();
+                    }
+                    else
+                    {
+                        tcs.SetException(exception);
+                    }
+                });
+
+            return tcs.Task;
+        }
+        
+        public static void Enqueue(this ICall call, Action<ICall, Response> onResponse, Action<ICall, Java.IO.IOException> onFailure)
+        {
+            call.Enqueue(new ActionCallback(onResponse, onFailure));
+        }
+
+        private class ActionCallback : Java.Lang.Object, global::Square.OkHttp3.ICallback
+        {
+            private readonly Action<ICall, Response> onResponse;
+            private readonly Action<ICall, Java.IO.IOException> onFailure;
+
+            public ActionCallback(Action<ICall, Response> onResponse, Action<ICall, Java.IO.IOException> onFailure)
+            {
+                this.onResponse = onResponse;
+                this.onFailure = onFailure;
+            }
+
+            public void OnResponse(ICall call, Response response)
+            {
+                if (onResponse != null)
+                {
+                    onResponse(call, response);
+                }
+            }
+
+            public void OnFailure(ICall call, Java.IO.IOException exception)
+            {
+                if (onFailure != null)
+                {
+                    onFailure(call, exception);
+                }
+            }
+        }
+    }
+}
diff --git a/source/com.squareup.okhttp3/okhttp-jvm/Additions/Dispatcher.cs b/source/com.squareup.okhttp3/okhttp-jvm/Additions/Dispatcher.cs
new file mode 100644
index 000000000..877e0222e
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-jvm/Additions/Dispatcher.cs
@@ -0,0 +1,8 @@
+namespace Square.OkHttp3
+{
+    partial class Dispatcher
+    {
+        public void SetIdleCallback(Java.Lang.IRunnable idleCallback) =>
+            IdleCallback = idleCallback;
+    }
+}
diff --git a/source/com.squareup.okhttp3/okhttp-jvm/Additions/OkHttpClient.Builder.cs b/source/com.squareup.okhttp3/okhttp-jvm/Additions/OkHttpClient.Builder.cs
new file mode 100644
index 000000000..56495b888
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-jvm/Additions/OkHttpClient.Builder.cs
@@ -0,0 +1,103 @@
+using System;
+using System.Collections.Generic;
+using Java.Net;
+using Javax.Net.Ssl;
+
+namespace Square.OkHttp3
+{
+    partial class OkHttpClient
+    {
+        partial class Builder
+        {
+            public Builder AddInterceptor(Func<IInterceptorChain, Response> interceptor)
+            {
+                return AddInterceptor(new InterceptorImpl(interceptor));
+            }
+
+            public Builder AddNetworkInterceptor(Func<IInterceptorChain, Response> interceptor)
+            {
+                return AddNetworkInterceptor(new InterceptorImpl(interceptor));
+            }
+
+            public Builder Authenticator(Func<Route, Response, Request> authenticate)
+            {
+                return Authenticator(new AuthenticatorImpl(authenticate));
+            }
+
+            public Builder ProxyAuthenticator(Func<Route, Response, Request> authenticate)
+            {
+                return ProxyAuthenticator(new AuthenticatorImpl(authenticate));
+            }
+
+            public Builder Dns(Func<string, IList<InetAddress>> lookup)
+            {
+                return Dns(new DnsImpl(lookup));
+            }
+
+            public Builder HostnameVerifier(Func<string, ISSLSession, bool> verify)
+            {
+                return HostnameVerifier(new HostnameVerifierImpl(verify));
+            }
+
+            private class AuthenticatorImpl : Java.Lang.Object, IAuthenticator
+            {
+                private readonly Func<Route, Response, Request> authenticate;
+
+                public AuthenticatorImpl(Func<Route, Response, Request> authenticate)
+                {
+                    this.authenticate = authenticate;
+                }
+
+                public Request Authenticate(Route p0, Response p1)
+                {
+                    return authenticate(p0, p1);
+                }
+            }
+
+            private class InterceptorImpl : Java.Lang.Object, IInterceptor
+            {
+                private readonly Func<IInterceptorChain, Response> interceptor;
+
+                public InterceptorImpl(Func<IInterceptorChain, Response> interceptor)
+                {
+                    this.interceptor = interceptor;
+                }
+
+                public Response Intercept(IInterceptorChain p0)
+                {
+                    return interceptor(p0);
+                }
+            }
+
+            private class DnsImpl : Java.Lang.Object, IDns
+            {
+                private readonly Func<string, IList<InetAddress>> lookup;
+
+                public DnsImpl(Func<string, IList<InetAddress>> lookup)
+                {
+                    this.lookup = lookup;
+                }
+
+                public IList<InetAddress> Lookup(string p0)
+                {
+                    return lookup(p0);
+                }
+            }
+
+            private class HostnameVerifierImpl : Java.Lang.Object, IHostnameVerifier
+            {
+                private readonly Func<string, ISSLSession, bool> verify;
+
+                public HostnameVerifierImpl(Func<string, ISSLSession, bool> verify)
+                {
+                    this.verify = verify;
+                }
+
+                public bool Verify(string hostname, ISSLSession session)
+                {
+                    return verify(hostname, session);
+                }
+            }
+        }
+    }
+}
diff --git a/source/com.squareup.okhttp3/okhttp-jvm/Additions/ResponseBody.cs b/source/com.squareup.okhttp3/okhttp-jvm/Additions/ResponseBody.cs
new file mode 100644
index 000000000..ccaee621c
--- /dev/null
+++ b/source/com.squareup.okhttp3/okhttp-jvm/Additions/ResponseBody.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Threading.Tasks;
+using Android.Runtime;
+
+namespace Square.OkHttp3
+{
+	partial class ResponseBody
+	{
+		public Task<byte[]> BytesAsync()
+		{
+			return Task.Run(() => Bytes());
+		}
+
+		public Task<string> StringAsync()
+		{
+			return Task.Run(() => String());
+		}
+	}
+}
diff --git a/source/com.squareup.okhttp3/okhttp-jvm/PublicAPI/PublicAPI.Unshipped.txt b/source/com.squareup.okhttp3/okhttp-jvm/PublicAPI/PublicAPI.Unshipped.txt
index 8d54140d9..cbb861f3d 100644
--- a/source/com.squareup.okhttp3/okhttp-jvm/PublicAPI/PublicAPI.Unshipped.txt
+++ b/source/com.squareup.okhttp3/okhttp-jvm/PublicAPI/PublicAPI.Unshipped.txt
@@ -82,6 +82,7 @@ Square.OkHttp3.CacheControl._deprecated_noStore() -> bool
 Square.OkHttp3.CacheControl._deprecated_noTransform() -> bool
 Square.OkHttp3.CacheControl._deprecated_onlyIfCached() -> bool
 Square.OkHttp3.CacheControl._deprecated_sMaxAgeSeconds() -> int
+Square.OkHttp3.CallExtensions
 Square.OkHttp3.CertificatePinner
 Square.OkHttp3.CertificatePinner.Builder
 Square.OkHttp3.CertificatePinner.Builder.Add(string! pattern, params string![]! pins) -> Square.OkHttp3.CertificatePinner.Builder!
@@ -198,6 +199,7 @@ Square.OkHttp3.Dispatcher.QueuedCalls() -> System.Collections.Generic.IList<Squa
 Square.OkHttp3.Dispatcher.QueuedCallsCount() -> int
 Square.OkHttp3.Dispatcher.RunningCalls() -> System.Collections.Generic.IList<Square.OkHttp3.ICall!>!
 Square.OkHttp3.Dispatcher.RunningCallsCount() -> int
+Square.OkHttp3.Dispatcher.SetIdleCallback(Java.Lang.IRunnable! idleCallback) -> void
 Square.OkHttp3.Dispatcher._deprecated_executorService() -> Java.Util.Concurrent.IExecutorService!
 Square.OkHttp3.Dns
 Square.OkHttp3.DnsConsts
@@ -451,8 +453,11 @@ Square.OkHttp3.OkHttpClient.Address(Square.OkHttp3.HttpUrl! url) -> Square.OkHtt
 Square.OkHttp3.OkHttpClient.Authenticator() -> Square.OkHttp3.IAuthenticator!
 Square.OkHttp3.OkHttpClient.Builder
 Square.OkHttp3.OkHttpClient.Builder.AddInterceptor(Square.OkHttp3.IInterceptor! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.AddInterceptor(System.Func<Square.OkHttp3.IInterceptorChain!, Square.OkHttp3.Response!>! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.AddNetworkInterceptor(Square.OkHttp3.IInterceptor! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.AddNetworkInterceptor(System.Func<Square.OkHttp3.IInterceptorChain!, Square.OkHttp3.Response!>! interceptor) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Authenticator(Square.OkHttp3.IAuthenticator! authenticator) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.Authenticator(System.Func<Square.OkHttp3.Route!, Square.OkHttp3.Response!, Square.OkHttp3.Request!>! authenticate) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Build() -> Square.OkHttp3.OkHttpClient!
 Square.OkHttp3.OkHttpClient.Builder.Builder() -> void
 Square.OkHttp3.OkHttpClient.Builder.Cache(Square.OkHttp3.Cache? cache) -> Square.OkHttp3.OkHttpClient.Builder!
@@ -468,12 +473,14 @@ Square.OkHttp3.OkHttpClient.Builder.ConnectionSpecs(System.Collections.Generic.I
 Square.OkHttp3.OkHttpClient.Builder.CookieJar(Square.OkHttp3.ICookieJar! cookieJar) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Dispatcher(Square.OkHttp3.Dispatcher! dispatcher) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Dns(Square.OkHttp3.IDns! dns) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.Dns(System.Func<string!, System.Collections.Generic.IList<Java.Net.InetAddress!>!>! lookup) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.EventListener(Square.OkHttp3.EventListener! eventListener) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.EventListenerFactory(Square.OkHttp3.EventListener.IFactory! eventListenerFactory) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.FastFallback(bool fastFallback) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.FollowRedirects(bool followRedirects) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.FollowSslRedirects(bool followProtocolRedirects) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.HostnameVerifier(Javax.Net.Ssl.IHostnameVerifier! hostnameVerifier) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.HostnameVerifier(System.Func<string!, Javax.Net.Ssl.ISSLSession!, bool>! verify) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Interceptors() -> System.Collections.Generic.IList<Square.OkHttp3.IInterceptor!>!
 Square.OkHttp3.OkHttpClient.Builder.MinWebSocketMessageToCompress(long bytes) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.NetworkInterceptors() -> System.Collections.Generic.IList<Square.OkHttp3.IInterceptor!>!
@@ -483,6 +490,7 @@ Square.OkHttp3.OkHttpClient.Builder.PingInterval_LRDsOJo(long _v_c_kotlin_time_D
 Square.OkHttp3.OkHttpClient.Builder.Protocols(System.Collections.Generic.IList<Square.OkHttp3.Protocol!>! protocols) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.Proxy(Java.Net.Proxy? proxy) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ProxyAuthenticator(Square.OkHttp3.IAuthenticator! proxyAuthenticator) -> Square.OkHttp3.OkHttpClient.Builder!
+Square.OkHttp3.OkHttpClient.Builder.ProxyAuthenticator(System.Func<Square.OkHttp3.Route!, Square.OkHttp3.Response!, Square.OkHttp3.Request!>! authenticate) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ProxySelector(Java.Net.ProxySelector! proxySelector) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ReadTimeout(Java.Time.Duration! duration) -> Square.OkHttp3.OkHttpClient.Builder!
 Square.OkHttp3.OkHttpClient.Builder.ReadTimeout(long timeout, Java.Util.Concurrent.TimeUnit! unit) -> Square.OkHttp3.OkHttpClient.Builder!
@@ -636,10 +644,12 @@ Square.OkHttp3.ResponseBody
 Square.OkHttp3.ResponseBody.ByteStream() -> System.IO.Stream!
 Square.OkHttp3.ResponseBody.ByteString() -> Square.OkIO.ByteString!
 Square.OkHttp3.ResponseBody.Bytes() -> byte[]!
+Square.OkHttp3.ResponseBody.BytesAsync() -> System.Threading.Tasks.Task<byte[]!>!
 Square.OkHttp3.ResponseBody.CharStream() -> Java.IO.Reader!
 Square.OkHttp3.ResponseBody.ResponseBody() -> void
 Square.OkHttp3.ResponseBody.ResponseBody(nint javaReference, Android.Runtime.JniHandleOwnership transfer) -> void
 Square.OkHttp3.ResponseBody.String() -> string!
+Square.OkHttp3.ResponseBody.StringAsync() -> System.Threading.Tasks.Task<string!>!
 Square.OkHttp3.Route
 Square.OkHttp3.Route.Address() -> Square.OkHttp3.Address!
 Square.OkHttp3.Route.Proxy() -> Java.Net.Proxy!
@@ -735,6 +745,8 @@ static Square.OkHttp3.Cache.Key(Square.OkHttp3.HttpUrl! url) -> string!
 static Square.OkHttp3.CacheControl.ForceCache.get -> Square.OkHttp3.CacheControl!
 static Square.OkHttp3.CacheControl.ForceNetwork.get -> Square.OkHttp3.CacheControl!
 static Square.OkHttp3.CacheControl.Parse(Square.OkHttp3.Headers! headers) -> Square.OkHttp3.CacheControl!
+static Square.OkHttp3.CallExtensions.Enqueue(this Square.OkHttp3.ICall! call, System.Action<Square.OkHttp3.ICall!, Square.OkHttp3.Response!>! onResponse, System.Action<Square.OkHttp3.ICall!, Java.IO.IOException!>! onFailure) -> void
+static Square.OkHttp3.CallExtensions.ExecuteAsync(this Square.OkHttp3.ICall! call) -> System.Threading.Tasks.Task<Square.OkHttp3.Response!>!
 static Square.OkHttp3.CertificatePinner.Default.get -> Square.OkHttp3.CertificatePinner!
 static Square.OkHttp3.CertificatePinner.InvokePin(Java.Security.Cert.Certificate! certificate) -> string!
 static Square.OkHttp3.CertificatePinner.Sha1Hash(Java.Security.Cert.X509Certificate! obj) -> Square.OkIO.ByteString!
diff --git a/source/com.squareup.okhttp3/okhttp/Additions/TypeForwards.cs b/source/com.squareup.okhttp3/okhttp/Additions/TypeForwards.cs
index 241a9346f..28b88176c 100644
--- a/source/com.squareup.okhttp3/okhttp/Additions/TypeForwards.cs
+++ b/source/com.squareup.okhttp3/okhttp/Additions/TypeForwards.cs
@@ -7,6 +7,7 @@
 [assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.AuthenticatorConsts))]
 [assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.Cache))]
 [assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.CacheControl))]
+[assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.CallExtensions))]
 [assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.CertificatePinner))]
 [assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.Challenge))]
 [assembly:TypeForwardedToAttribute(typeof(Square.OkHttp3.CipherSuite))]