diff --git a/android/build.gradle b/android/build.gradle
index d62d2555e..df5fa58bd 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -88,6 +88,6 @@ repositories {
 dependencies {
   implementation project(':expo-modules-core')
   implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:${getKotlinVersion()}"
-  implementation "org.xmtp:android:0.2.0"
+  implementation "org.xmtp:android:0.3.0"
   implementation 'com.google.code.gson:gson:2.10.1'
 }
diff --git a/android/src/main/java/expo/modules/xmtpreactnativesdk/XMTPModule.kt b/android/src/main/java/expo/modules/xmtpreactnativesdk/XMTPModule.kt
index 841e9a856..c5dcf90e8 100644
--- a/android/src/main/java/expo/modules/xmtpreactnativesdk/XMTPModule.kt
+++ b/android/src/main/java/expo/modules/xmtpreactnativesdk/XMTPModule.kt
@@ -25,6 +25,7 @@ import org.xmtp.android.library.messages.InvitationV1ContextBuilder
 import org.xmtp.android.library.messages.PrivateKeyBuilder
 import org.xmtp.android.library.messages.Signature
 import org.xmtp.android.library.push.XMTPPush
+import org.xmtp.proto.keystore.api.v1.Keystore.TopicMap.TopicData
 import org.xmtp.proto.message.contents.SignatureOuterClass
 import org.xmtp.proto.message.contents.PrivateKeyOuterClass
 import java.util.Date
@@ -72,11 +73,7 @@ data class SignatureRequest(
 )
 
 fun Conversation.cacheKey(clientAddress: String): String {
-    return if (conversationId != "") {
-        "${clientAddress}:${topic}:${conversationId}"
-    } else {
-        "${clientAddress}:${topic}"
-    }
+    return "${clientAddress}:${topic}"
 }
 
 class XMTPModule : Module() {
@@ -150,6 +147,25 @@ class XMTPModule : Module() {
             Base64.encodeToString(client.privateKeyBundle.toByteArray(), NO_WRAP)
         }
 
+        // Export the conversation's serialized topic data.
+        AsyncFunction("exportConversationTopicData") { clientAddress: String, topic: String ->
+            logV("exportConversationTopicData")
+            val client = clients[clientAddress] ?: throw XMTPException("No client")
+            val conversation = findConversation(clientAddress, topic)
+                ?: throw XMTPException("no conversation found for $topic")
+            Base64.encodeToString(conversation.toTopicData().toByteArray(), NO_WRAP)
+        }
+
+        // Import a conversation from its serialized topic data.
+        AsyncFunction("importConversationTopicData") { clientAddress: String, topicData: String ->
+            logV("importConversationTopicData")
+            val client = clients[clientAddress] ?: throw XMTPException("No client")
+            val data = TopicData.parseFrom(Base64.decode(topicData, NO_WRAP))
+            val conversation = client.conversations.importTopicData(data)
+            conversations[conversation.cacheKey(clientAddress)] = conversation
+            ConversationWrapper.encode(ConversationWithClientAddress(client, conversation))
+        }
+
         //
         // Client API
         AsyncFunction("canMessage") { clientAddress: String, peerAddress: String ->
@@ -186,8 +202,7 @@ class XMTPModule : Module() {
             val conversation =
                 findConversation(
                     clientAddress = clientAddress,
-                    topic = conversationTopic,
-                    conversationId = conversationID
+                    topic = conversationTopic
                 )
                     ?: throw XMTPException("no conversation found for $conversationTopic")
             val preparedMessage = conversation.prepareMessage(content = content)
@@ -260,8 +275,7 @@ class XMTPModule : Module() {
             val conversation =
                 findConversation(
                     clientAddress = clientAddress,
-                    topic = topic,
-                    conversationId = conversationID
+                    topic = topic
                 )
                     ?: throw XMTPException("no conversation found for $topic")
             val decodedMessage = conversation.decode(envelope)
@@ -275,22 +289,16 @@ class XMTPModule : Module() {
     private fun findConversation(
         clientAddress: String,
         topic: String,
-        conversationId: String?,
     ): Conversation? {
         val client = clients[clientAddress] ?: throw XMTPException("No client")
 
-        val cacheKey: String = if (!conversationId.isNullOrBlank()) {
-            "${clientAddress}:${topic}:${conversationId}"
-        } else {
-            "${clientAddress}:${topic}"
-        }
-
+        val cacheKey = "${clientAddress}:${topic}"
         val cacheConversation = conversations[cacheKey]
         if (cacheConversation != null) {
             return cacheConversation
         } else {
             val conversation = client.conversations.list()
-                .firstOrNull { it.topic == topic && it.conversationId == conversationId }
+                .firstOrNull { it.topic == topic }
             if (conversation != null) {
                 conversations[conversation.cacheKey(clientAddress)] = conversation
                 return conversation
@@ -349,8 +357,7 @@ class XMTPModule : Module() {
         val conversation =
             findConversation(
                 clientAddress = clientAddress,
-                topic = topic,
-                conversationId = conversationId
+                topic = topic
             ) ?: return
         subscriptions[conversation.cacheKey(clientAddress)] =
             CoroutineScope(Dispatchers.IO).launch {
@@ -380,8 +387,7 @@ class XMTPModule : Module() {
         val conversation =
             findConversation(
                 clientAddress = clientAddress,
-                topic = topic,
-                conversationId = conversationId
+                topic = topic
             ) ?: return
         subscriptions[conversation.cacheKey(clientAddress)]?.cancel()
     }
diff --git a/example/ios/Podfile.lock b/example/ios/Podfile.lock
index f5710113f..1cde23f59 100644
--- a/example/ios/Podfile.lock
+++ b/example/ios/Podfile.lock
@@ -18,31 +18,31 @@ PODS:
     - ExpoModulesCore
   - EXFont (11.1.1):
     - ExpoModulesCore
-  - Expo (48.0.11):
+  - Expo (48.0.17):
     - ExpoModulesCore
   - ExpoKeepAwake (12.0.1):
     - ExpoModulesCore
-  - ExpoModulesCore (1.2.6):
+  - ExpoModulesCore (1.2.7):
     - React-Core
     - React-RCTAppDelegate
     - ReactCommon/turbomodule/core
   - EXSecureStore (12.1.1):
     - ExpoModulesCore
-  - FBLazyVector (0.71.6)
-  - FBReactNativeSpec (0.71.6):
+  - FBLazyVector (0.71.8)
+  - FBReactNativeSpec (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - RCTRequired (= 0.71.6)
-    - RCTTypeSafety (= 0.71.6)
-    - React-Core (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
+    - RCTRequired (= 0.71.8)
+    - RCTTypeSafety (= 0.71.8)
+    - React-Core (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
   - fmt (6.2.1)
   - GenericJSON (2.0.2)
   - glog (0.3.5)
   - GzipSwift (5.1.1)
-  - hermes-engine (0.71.6):
-    - hermes-engine/Pre-built (= 0.71.6)
-  - hermes-engine/Pre-built (0.71.6)
+  - hermes-engine (0.71.8):
+    - hermes-engine/Pre-built (= 0.71.8)
+  - hermes-engine/Pre-built (0.71.8)
   - libevent (2.1.12)
   - Logging (1.0.0)
   - MMKV (1.3.0):
@@ -65,26 +65,26 @@ PODS:
     - fmt (~> 6.2.1)
     - glog
     - libevent
-  - RCTRequired (0.71.6)
-  - RCTTypeSafety (0.71.6):
-    - FBLazyVector (= 0.71.6)
-    - RCTRequired (= 0.71.6)
-    - React-Core (= 0.71.6)
-  - React (0.71.6):
-    - React-Core (= 0.71.6)
-    - React-Core/DevSupport (= 0.71.6)
-    - React-Core/RCTWebSocket (= 0.71.6)
-    - React-RCTActionSheet (= 0.71.6)
-    - React-RCTAnimation (= 0.71.6)
-    - React-RCTBlob (= 0.71.6)
-    - React-RCTImage (= 0.71.6)
-    - React-RCTLinking (= 0.71.6)
-    - React-RCTNetwork (= 0.71.6)
-    - React-RCTSettings (= 0.71.6)
-    - React-RCTText (= 0.71.6)
-    - React-RCTVibration (= 0.71.6)
-  - React-callinvoker (0.71.6)
-  - React-Codegen (0.71.6):
+  - RCTRequired (0.71.8)
+  - RCTTypeSafety (0.71.8):
+    - FBLazyVector (= 0.71.8)
+    - RCTRequired (= 0.71.8)
+    - React-Core (= 0.71.8)
+  - React (0.71.8):
+    - React-Core (= 0.71.8)
+    - React-Core/DevSupport (= 0.71.8)
+    - React-Core/RCTWebSocket (= 0.71.8)
+    - React-RCTActionSheet (= 0.71.8)
+    - React-RCTAnimation (= 0.71.8)
+    - React-RCTBlob (= 0.71.8)
+    - React-RCTImage (= 0.71.8)
+    - React-RCTLinking (= 0.71.8)
+    - React-RCTNetwork (= 0.71.8)
+    - React-RCTSettings (= 0.71.8)
+    - React-RCTText (= 0.71.8)
+    - React-RCTVibration (= 0.71.8)
+  - React-callinvoker (0.71.8)
+  - React-Codegen (0.71.8):
     - FBReactNativeSpec
     - hermes-engine
     - RCT-Folly
@@ -95,209 +95,209 @@ PODS:
     - React-jsiexecutor
     - ReactCommon/turbomodule/bridging
     - ReactCommon/turbomodule/core
-  - React-Core (0.71.6):
+  - React-Core (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-Core/Default (= 0.71.6)
-    - React-cxxreact (= 0.71.6)
+    - React-Core/Default (= 0.71.8)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/CoreModulesHeaders (0.71.6):
+  - React-Core/CoreModulesHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/Default (0.71.6):
+  - React-Core/Default (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/DevSupport (0.71.6):
+  - React-Core/DevSupport (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-Core/Default (= 0.71.6)
-    - React-Core/RCTWebSocket (= 0.71.6)
-    - React-cxxreact (= 0.71.6)
+    - React-Core/Default (= 0.71.8)
+    - React-Core/RCTWebSocket (= 0.71.8)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-jsinspector (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-jsinspector (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTActionSheetHeaders (0.71.6):
+  - React-Core/RCTActionSheetHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTAnimationHeaders (0.71.6):
+  - React-Core/RCTAnimationHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTBlobHeaders (0.71.6):
+  - React-Core/RCTBlobHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTImageHeaders (0.71.6):
+  - React-Core/RCTImageHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTLinkingHeaders (0.71.6):
+  - React-Core/RCTLinkingHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTNetworkHeaders (0.71.6):
+  - React-Core/RCTNetworkHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTSettingsHeaders (0.71.6):
+  - React-Core/RCTSettingsHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTTextHeaders (0.71.6):
+  - React-Core/RCTTextHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTVibrationHeaders (0.71.6):
+  - React-Core/RCTVibrationHeaders (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - React-Core/Default
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-Core/RCTWebSocket (0.71.6):
+  - React-Core/RCTWebSocket (0.71.8):
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-Core/Default (= 0.71.6)
-    - React-cxxreact (= 0.71.6)
+    - React-Core/Default (= 0.71.8)
+    - React-cxxreact (= 0.71.8)
     - React-hermes
-    - React-jsi (= 0.71.6)
-    - React-jsiexecutor (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-jsi (= 0.71.8)
+    - React-jsiexecutor (= 0.71.8)
+    - React-perflogger (= 0.71.8)
     - Yoga
-  - React-CoreModules (0.71.6):
+  - React-CoreModules (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - RCTTypeSafety (= 0.71.6)
-    - React-Codegen (= 0.71.6)
-    - React-Core/CoreModulesHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
+    - RCTTypeSafety (= 0.71.8)
+    - React-Codegen (= 0.71.8)
+    - React-Core/CoreModulesHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
     - React-RCTBlob
-    - React-RCTImage (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-cxxreact (0.71.6):
+    - React-RCTImage (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-cxxreact (0.71.8):
     - boost (= 1.76.0)
     - DoubleConversion
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-callinvoker (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - React-jsinspector (= 0.71.6)
-    - React-logger (= 0.71.6)
-    - React-perflogger (= 0.71.6)
-    - React-runtimeexecutor (= 0.71.6)
-  - React-hermes (0.71.6):
+    - React-callinvoker (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - React-jsinspector (= 0.71.8)
+    - React-logger (= 0.71.8)
+    - React-perflogger (= 0.71.8)
+    - React-runtimeexecutor (= 0.71.8)
+  - React-hermes (0.71.8):
     - DoubleConversion
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
     - RCT-Folly/Futures (= 2021.07.22.00)
-    - React-cxxreact (= 0.71.6)
+    - React-cxxreact (= 0.71.8)
     - React-jsi
-    - React-jsiexecutor (= 0.71.6)
-    - React-jsinspector (= 0.71.6)
-    - React-perflogger (= 0.71.6)
-  - React-jsi (0.71.6):
+    - React-jsiexecutor (= 0.71.8)
+    - React-jsinspector (= 0.71.8)
+    - React-perflogger (= 0.71.8)
+  - React-jsi (0.71.8):
     - boost (= 1.76.0)
     - DoubleConversion
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-  - React-jsiexecutor (0.71.6):
+  - React-jsiexecutor (0.71.8):
     - DoubleConversion
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-cxxreact (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - React-perflogger (= 0.71.6)
-  - React-jsinspector (0.71.6)
-  - React-logger (0.71.6):
+    - React-cxxreact (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - React-perflogger (= 0.71.8)
+  - React-jsinspector (0.71.8)
+  - React-logger (0.71.8):
     - glog
   - react-native-get-random-values (1.8.0):
     - React-Core
@@ -312,90 +312,90 @@ PODS:
     - RCTTypeSafety
     - React-Core
     - ReactCommon/turbomodule/core
-  - React-perflogger (0.71.6)
-  - React-RCTActionSheet (0.71.6):
-    - React-Core/RCTActionSheetHeaders (= 0.71.6)
-  - React-RCTAnimation (0.71.6):
+  - React-perflogger (0.71.8)
+  - React-RCTActionSheet (0.71.8):
+    - React-Core/RCTActionSheetHeaders (= 0.71.8)
+  - React-RCTAnimation (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - RCTTypeSafety (= 0.71.6)
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTAnimationHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-RCTAppDelegate (0.71.6):
+    - RCTTypeSafety (= 0.71.8)
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTAnimationHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-RCTAppDelegate (0.71.8):
     - RCT-Folly
     - RCTRequired
     - RCTTypeSafety
     - React-Core
     - ReactCommon/turbomodule/core
-  - React-RCTBlob (0.71.6):
+  - React-RCTBlob (0.71.8):
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTBlobHeaders (= 0.71.6)
-    - React-Core/RCTWebSocket (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - React-RCTNetwork (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-RCTImage (0.71.6):
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTBlobHeaders (= 0.71.8)
+    - React-Core/RCTWebSocket (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - React-RCTNetwork (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-RCTImage (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - RCTTypeSafety (= 0.71.6)
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTImageHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - React-RCTNetwork (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-RCTLinking (0.71.6):
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTLinkingHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-RCTNetwork (0.71.6):
+    - RCTTypeSafety (= 0.71.8)
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTImageHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - React-RCTNetwork (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-RCTLinking (0.71.8):
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTLinkingHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-RCTNetwork (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - RCTTypeSafety (= 0.71.6)
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTNetworkHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-RCTSettings (0.71.6):
+    - RCTTypeSafety (= 0.71.8)
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTNetworkHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-RCTSettings (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - RCTTypeSafety (= 0.71.6)
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTSettingsHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-RCTText (0.71.6):
-    - React-Core/RCTTextHeaders (= 0.71.6)
-  - React-RCTVibration (0.71.6):
+    - RCTTypeSafety (= 0.71.8)
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTSettingsHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-RCTText (0.71.8):
+    - React-Core/RCTTextHeaders (= 0.71.8)
+  - React-RCTVibration (0.71.8):
     - RCT-Folly (= 2021.07.22.00)
-    - React-Codegen (= 0.71.6)
-    - React-Core/RCTVibrationHeaders (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - ReactCommon/turbomodule/core (= 0.71.6)
-  - React-runtimeexecutor (0.71.6):
-    - React-jsi (= 0.71.6)
-  - ReactCommon/turbomodule/bridging (0.71.6):
+    - React-Codegen (= 0.71.8)
+    - React-Core/RCTVibrationHeaders (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - ReactCommon/turbomodule/core (= 0.71.8)
+  - React-runtimeexecutor (0.71.8):
+    - React-jsi (= 0.71.8)
+  - ReactCommon/turbomodule/bridging (0.71.8):
     - DoubleConversion
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-callinvoker (= 0.71.6)
-    - React-Core (= 0.71.6)
-    - React-cxxreact (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - React-logger (= 0.71.6)
-    - React-perflogger (= 0.71.6)
-  - ReactCommon/turbomodule/core (0.71.6):
+    - React-callinvoker (= 0.71.8)
+    - React-Core (= 0.71.8)
+    - React-cxxreact (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - React-logger (= 0.71.8)
+    - React-perflogger (= 0.71.8)
+  - ReactCommon/turbomodule/core (0.71.8):
     - DoubleConversion
     - glog
     - hermes-engine
     - RCT-Folly (= 2021.07.22.00)
-    - React-callinvoker (= 0.71.6)
-    - React-Core (= 0.71.6)
-    - React-cxxreact (= 0.71.6)
-    - React-jsi (= 0.71.6)
-    - React-logger (= 0.71.6)
-    - React-perflogger (= 0.71.6)
+    - React-callinvoker (= 0.71.8)
+    - React-Core (= 0.71.8)
+    - React-cxxreact (= 0.71.8)
+    - React-jsi (= 0.71.8)
+    - React-logger (= 0.71.8)
+    - React-perflogger (= 0.71.8)
   - RNScreens (3.20.0):
     - React-Core
     - React-RCTImage
@@ -408,14 +408,14 @@ PODS:
     - GenericJSON (~> 2.0)
     - Logging (~> 1.0.0)
     - secp256k1.swift (~> 0.1)
-  - XMTP (0.3.2-alpha0):
+  - XMTP (0.3.4-alpha0):
     - Connect-Swift
     - GzipSwift
     - web3.swift
     - XMTPRust (= 0.3.0-beta0)
   - XMTPReactNative (0.1.0):
     - ExpoModulesCore
-    - XMTP (= 0.3.2-alpha0)
+    - XMTP (= 0.3.4-alpha0)
   - XMTPRust (0.3.0-beta0)
   - Yoga (1.14.0)
 
@@ -605,62 +605,62 @@ SPEC CHECKSUMS:
   EXConstants: f348da07e21b23d2b085e270d7b74f282df1a7d9
   EXFileSystem: 844e86ca9b5375486ecc4ef06d3838d5597d895d
   EXFont: 6ea3800df746be7233208d80fe379b8ed74f4272
-  Expo: 81418098ffb16914b2e190f54e06db923248e4a1
+  Expo: d351b4546895fb99ae4e5a1bc39df770ab9dc7d1
   ExpoKeepAwake: 69f5f627670d62318410392d03e0b5db0f85759a
-  ExpoModulesCore: 6e0259511f4c4341b6b8357db393624df2280828
+  ExpoModulesCore: 653958063a301098b541ae4dfed1ac0b98db607b
   EXSecureStore: e8923258361cc406d0401af380f12bd05b2b720f
-  FBLazyVector: a83ceaa8a8581003a623facdb3c44f6d4f342ac5
-  FBReactNativeSpec: 85eee79837cb797ab6176f0243a2b40511c09158
+  FBLazyVector: f637f31eacba90d4fdeff3fa41608b8f361c173b
+  FBReactNativeSpec: 0d9a4f4de7ab614c49e98c00aedfd3bfbda33d59
   fmt: ff9d55029c625d3757ed641535fd4a75fedc7ce9
   GenericJSON: 79a840eeb77030962e8cf02a62d36bd413b67626
   glog: 04b94705f318337d7ead9e6d17c019bd9b1f6b1b
   GzipSwift: 893f3e48e597a1a4f62fafcb6514220fcf8287fa
-  hermes-engine: b434cea529ad0152c56c7cb6486b0c4c0b23b5de
+  hermes-engine: 47986d26692ae75ee7a17ab049caee8864f855de
   libevent: 4049cae6c81cdb3654a443be001fb9bdceff7913
   Logging: 9ef4ecb546ad3169398d5a723bc9bea1c46bef26
   MMKV: 9c6c3fa4ddd849f28c7b9a5c9d23aab84f14ee35
   MMKVCore: 9bb7440b170181ac5b81f542ac258103542e693d
   RCT-Folly: 424b8c9a7a0b9ab2886ffe9c3b041ef628fd4fb1
-  RCTRequired: 5c6fd63b03abb06947d348dadac51c93e3485bd8
-  RCTTypeSafety: 1c66daedd66f674e39ce9f40782f0d490c78b175
-  React: e11ca7cdc7aa4ddd7e6a59278b808cfe17ebbd9f
-  React-callinvoker: 77a82869505c96945c074b80bbdc8df919646d51
-  React-Codegen: 9ee33090c38ab3da3c4dc029924d50fb649f0dfc
-  React-Core: 44903e47b428a491f48fd0eae54caddb2ea05ebf
-  React-CoreModules: 83d989defdfc82be1f7386f84a56b6509f54ac74
-  React-cxxreact: 058e7e6349649eae9cfcdec5854e702b26298932
-  React-hermes: ba19a405804b833c9b832c1f2061ad5038bb97f2
-  React-jsi: 3fe6f589c9cafbef85ed5a4be7c6dc8edfb4ab54
-  React-jsiexecutor: 7894956638ff3e00819dd3f9f6f4a84da38f2409
-  React-jsinspector: d5ce2ef3eb8fd30c28389d0bc577918c70821bd6
-  React-logger: 9332c3e7b4ef007a0211c0a9868253aac3e1da82
+  RCTRequired: 8af6a32dfc2b65ec82193c2dee6e1011ff22ac2a
+  RCTTypeSafety: bee9dd161c175896c680d47ef1d9eaacf2b587f4
+  React: d850475db9ba8006a8b875d79e1e0d6ac8a0f8b6
+  React-callinvoker: 6a0c75475ddc17c9ed54e4ff0478074a18fd7ab5
+  React-Codegen: 786571642e87add634e7f4d299c85314ec6cc158
+  React-Core: 1adfab153f59e4f56e09b97a153089f466d7b8aa
+  React-CoreModules: 958d236715415d4ccdd5fa35c516cf0356637393
+  React-cxxreact: 2e7a6283807ce8755c3d501735acd400bec3b5cd
+  React-hermes: 8102c3112ba32207c3052619be8cfae14bf99d84
+  React-jsi: dd29264f041a587e91f994e4be97e86c127742b2
+  React-jsiexecutor: 747911ab5921641b4ed7e4900065896597142125
+  React-jsinspector: c712f9e3bb9ba4122d6b82b4f906448b8a281580
+  React-logger: 342f358b8decfbf8f272367f4eacf4b6154061be
   react-native-get-random-values: a6ea6a8a65dc93e96e24a11105b1a9c8cfe1d72a
   react-native-mmkv: 7da5e18e55c04a9af9a7e0ab9792a1e8d33765a1
   react-native-randombytes: 421f1c7d48c0af8dbcd471b0324393ebf8fe7846
   react-native-safe-area-context: 39c2d8be3328df5d437ac1700f4f3a4f75716acc
-  React-perflogger: 43392072a5b867a504e2b4857606f8fc5a403d7f
-  React-RCTActionSheet: c7b67c125bebeda9fb19fc7b200d85cb9d6899c4
-  React-RCTAnimation: c2de79906f607986633a7114bee44854e4c7e2f5
-  React-RCTAppDelegate: 96bc933c3228a549718a6475c4d3f9dd4bbae98d
-  React-RCTBlob: cf72446957310e7da6627a4bdaadf970d3a8f232
-  React-RCTImage: c6093f1bf3d67c0428d779b00390617d5bd90699
-  React-RCTLinking: 5de47e37937889d22599af4b99d0552bad1b1c3c
-  React-RCTNetwork: e7d7077e073b08e5dd486fba3fe87ccad90a9bc4
-  React-RCTSettings: 72a04921b2e8fb832da7201a60ffffff2a7c62f7
-  React-RCTText: 7123c70fef5367e2121fea37e65b9ad6d3747e54
-  React-RCTVibration: 73d201599a64ea14b4e0b8f91b64970979fd92e6
-  React-runtimeexecutor: 8692ac548bec648fa121980ccb4304afd136d584
-  ReactCommon: 0c43eaeaaee231d7d8dc24fc5a6e4cf2b75bf196
+  React-perflogger: d21f182895de9d1b077f8a3cd00011095c8c9100
+  React-RCTActionSheet: 0151f83ef92d2a7139bba7dfdbc8066632a6d47b
+  React-RCTAnimation: 5ec9c0705bb2297549c120fe6473aa3e4a01e215
+  React-RCTAppDelegate: 9895fd1b6d1176d88c4b10ddc169b2e1300c91f0
+  React-RCTBlob: f3634eb45b6e7480037655e1ca93d1136ac984dd
+  React-RCTImage: 3c12cb32dec49549ae62ed6cba4018db43841ffc
+  React-RCTLinking: 310e930ee335ef25481b4a173d9edb64b77895f9
+  React-RCTNetwork: b6837841fe88303b0c04c1e3c01992b30f1f5498
+  React-RCTSettings: 600d91fe25fa7c16b0ff891304082440f2904b89
+  React-RCTText: a0a19f749088280c6def5397ed6211b811e7eef3
+  React-RCTVibration: 43ffd976a25f6057a7cf95ea3648ba4e00287f89
+  React-runtimeexecutor: 7c51ae9d4b3e9608a2366e39ccaa606aa551b9ed
+  ReactCommon: 85c98ab0a509e70bf5ee5d9715cf68dbf495b84c
   RNScreens: 218801c16a2782546d30bd2026bb625c0302d70f
   RNSVG: 53c661b76829783cdaf9b7a57258f3d3b4c28315
   secp256k1.swift: a7e7a214f6db6ce5db32cc6b2b45e5c4dd633634
   SwiftProtobuf: afced68785854575756db965e9da52bbf3dc45e7
   web3.swift: 2263d1e12e121b2c42ffb63a5a7beb1acaf33959
-  XMTP: bbdd2c59b57104d7713a31be2fa011fc07f81314
-  XMTPReactNative: 48408071eeb51d1593d49c548c6002e948cd6b43
+  XMTP: 0678e0b6c2e66f197db098106bec2fe35f7295fb
+  XMTPReactNative: 7f86c6cde3d3123d5f25adb0c9cdaedb7ca5b6aa
   XMTPRust: 233518ed46fbe3ea9e3bc3035de9a620dba09ce5
-  Yoga: ba09b6b11e6139e3df8229238aa794205ca6a02a
+  Yoga: 065f0b74dba4832d6e328238de46eb72c5de9556
 
 PODFILE CHECKSUM: 522d88edc2d5fac4825e60a121c24abc18983367
 
-COCOAPODS: 1.11.3
+COCOAPODS: 1.12.1
diff --git a/ios/XMTPModule.swift b/ios/XMTPModule.swift
index 67f0af132..7914a114c 100644
--- a/ios/XMTPModule.swift
+++ b/ios/XMTPModule.swift
@@ -59,12 +59,13 @@ struct SignatureRequest: Codable {
 }
 
 extension Conversation {
-    func cacheKey(_ clientAddress: String) -> String {
-        if let conversationID, conversationID != "" {
-            return "\(clientAddress):\(topic):\(conversationID)"
-        } else {
+
+    static func cacheKeyForTopic(clientAddress: String, topic: String) -> String {
             return "\(clientAddress):\(topic)"
         }
+
+    func cacheKey(_ clientAddress: String) -> String {
+        return Conversation.cacheKeyForTopic(clientAddress: clientAddress, topic: topic)
     }
 }
 
@@ -150,6 +151,30 @@ public class XMTPModule: Module {
             return bundle
         }
 
+        // Export the conversation's serialized topic data.
+        AsyncFunction("exportConversationTopicData") { (clientAddress: String, topic: String) -> String in
+            guard let client = clients[clientAddress] else {
+                throw Error.noClient
+            }
+            guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic) else {
+                throw Error.conversationNotFound(topic)
+            }
+            return try conversation.toTopicData().serializedData().base64EncodedString()
+        }
+
+        // Import a conversation from its serialized topic data.
+        AsyncFunction("importConversationTopicData") { (clientAddress: String, topicData: String) -> String in
+            guard let client = clients[clientAddress] else {
+                throw Error.noClient
+            }
+            let data = try Xmtp_KeystoreApi_V1_TopicMap.TopicData(
+                serializedData: Data(base64Encoded: Data(topicData.utf8))!
+            )
+            let conversation = client.conversations.importTopicData(data: data)
+            conversations[conversation.cacheKey(clientAddress)] = conversation
+            return try ConversationWrapper.encode(ConversationWithClientAddress(client: client, conversation: conversation))
+        }
+
         //
         // Client API
         AsyncFunction("canMessage") { (clientAddress: String, peerAddress: String) -> Bool in
@@ -190,7 +215,7 @@ public class XMTPModule: Module {
 
         // TODO: Support content types
         AsyncFunction("sendMessage") { (clientAddress: String, conversationTopic: String, conversationID: String?, content: String) -> String in
-            guard let conversation = try await findConversation(clientAddress: clientAddress, topic: conversationTopic, conversationID: conversationID) else {
+            guard let conversation = try await findConversation(clientAddress: clientAddress, topic: conversationTopic) else {
                 throw Error.conversationNotFound("no conversation found for \(conversationTopic)")
             }
 
@@ -262,7 +287,7 @@ public class XMTPModule: Module {
                 envelope.contentTopic = topic
             }
 
-            guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic, conversationID: conversationID) else {
+            guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic) else {
                 throw Error.conversationNotFound("no conversation found for \(topic)")
             }
             let decodedMessage = try conversation.decode(envelope)
@@ -274,23 +299,16 @@ public class XMTPModule: Module {
     // Helpers
     //
 
-    func findConversation(clientAddress: String, topic: String, conversationID: String?) async throws -> Conversation? {
+    func findConversation(clientAddress: String, topic: String) async throws -> Conversation? {
         guard let client = clients[clientAddress] else {
             throw Error.noClient
         }
 
-        let cacheKey: String
-
-        if let conversationID, conversationID != "" {
-            cacheKey = "\(clientAddress):\(topic):\(conversationID)"
-        } else {
-            cacheKey = "\(clientAddress):\(topic)"
-        }
-
+        let cacheKey = Conversation.cacheKeyForTopic(clientAddress: clientAddress, topic: topic)
         if let conversation = conversations[cacheKey] {
             return conversation
-        } else if let conversation = try await client.conversations.list().first(where: { $0.topic == topic && $0.conversationID == conversationID }) {
-            conversations[conversation.cacheKey(clientAddress)] = conversation
+        } else if let conversation = try await client.conversations.list().first(where: { $0.topic == topic }) {
+            conversations[cacheKey] = conversation
             return conversation
         }
 
@@ -342,7 +360,7 @@ public class XMTPModule: Module {
     }
 
     func subscribeToMessages(clientAddress: String, topic: String, conversationID: String?) async throws {
-        guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic, conversationID: conversationID) else {
+        guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic) else {
             return
         }
 
@@ -363,7 +381,7 @@ public class XMTPModule: Module {
     }
 
     func unsubscribeFromMessages(clientAddress: String, topic: String, conversationID: String?) async throws {
-        guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic, conversationID: conversationID) else {
+        guard let conversation = try await findConversation(clientAddress: clientAddress, topic: topic) else {
             return
         }
 
diff --git a/ios/XMTPReactNative.podspec b/ios/XMTPReactNative.podspec
index aa51a9e20..6ee5f4728 100644
--- a/ios/XMTPReactNative.podspec
+++ b/ios/XMTPReactNative.podspec
@@ -24,5 +24,5 @@ Pod::Spec.new do |s|
   }
 
   s.source_files = "**/*.{h,m,swift}"
-  s.dependency "XMTP", "= 0.3.2-alpha0"
+  s.dependency "XMTP", "= 0.3.4-alpha0"
 end
diff --git a/src/index.ts b/src/index.ts
index e0fef76ee..0e6b34dde 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -36,6 +36,21 @@ export async function exportKeyBundle(clientAddress: string): Promise<string> {
   return await XMTPModule.exportKeyBundle(clientAddress);
 }
 
+export async function exportConversationTopicData(
+    clientAddress: string,
+    conversationTopic: string
+): Promise<string> {
+  return await XMTPModule.exportConversationTopicData(clientAddress, conversationTopic);
+}
+
+export async function importConversationTopicData(
+    clientAddress: string,
+    topicData: string
+): Promise<Conversation> {
+  let json = await XMTPModule.importConversationTopicData(clientAddress, topicData);
+  return new Conversation(JSON.parse(json));
+}
+
 export async function canMessage(clientAddress: string, peerAddress: string): Promise<boolean> {
   return await XMTPModule.canMessage(clientAddress, peerAddress);
 }
diff --git a/src/lib/Conversation.ts b/src/lib/Conversation.ts
index 76715acf5..285d1561d 100644
--- a/src/lib/Conversation.ts
+++ b/src/lib/Conversation.ts
@@ -22,6 +22,10 @@ export class Conversation {
     this.conversationID = params.conversationID;
   }
 
+  async exportTopicData(): Promise<string> {
+    return await XMTP.exportConversationTopicData(this.clientAddress, this.topic);
+  }
+
   // TODO: Support pagination and conversation ID here
   async messages(
     limit?: number | undefined,
diff --git a/src/lib/Conversations.ts b/src/lib/Conversations.ts
index 9f0fbcbe4..069bac1bf 100644
--- a/src/lib/Conversations.ts
+++ b/src/lib/Conversations.ts
@@ -25,6 +25,15 @@ export default class Conversations {
     return result;
   }
 
+  async importTopicData(topicData: string): Promise<Conversation> {
+    const conversation = await XMTPModule.importConversationTopicData(
+        this.client.address,
+        topicData
+    );
+    this.known[conversation.topic] = true;
+    return conversation;
+  }
+
   // TODO: support conversation ID
   async newConversation(
     peerAddress: string,