diff --git a/app/src/main/java/org/thoughtcrime/securesms/AppCapabilities.java b/app/src/main/java/org/thoughtcrime/securesms/AppCapabilities.java
new file mode 100644
index 0000000000..6f6e2116dc
--- /dev/null
+++ b/app/src/main/java/org/thoughtcrime/securesms/AppCapabilities.java
@@ -0,0 +1,17 @@
+package org.thoughtcrime.securesms;
+
+import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
+
+public final class AppCapabilities {
+
+  private AppCapabilities() {
+  }
+
+  private static final boolean UUID_CAPABLE      = false;
+  private static final boolean GROUPS_V2_CAPABLE = false;
+
+  public static SignalServiceProfile.Capabilities getCapabilities() {
+    return new SignalServiceProfile.Capabilities(UUID_CAPABLE,
+                                                 GROUPS_V2_CAPABLE);
+  }
+}
diff --git a/app/src/main/java/org/thoughtcrime/securesms/jobs/RefreshAttributesJob.java b/app/src/main/java/org/thoughtcrime/securesms/jobs/RefreshAttributesJob.java
index 687c21ea87..f4771b6fad 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/jobs/RefreshAttributesJob.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/jobs/RefreshAttributesJob.java
@@ -2,6 +2,7 @@ package org.thoughtcrime.securesms.jobs;
 
 import androidx.annotation.NonNull;
 
+import org.thoughtcrime.securesms.AppCapabilities;
 import org.thoughtcrime.securesms.crypto.ProfileKeyUtil;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
 import org.thoughtcrime.securesms.jobmanager.Data;
@@ -64,7 +65,8 @@ public class RefreshAttributesJob extends BaseJob {
     SignalServiceAccountManager signalAccountManager = ApplicationDependencies.getSignalServiceAccountManager();
     signalAccountManager.setAccountAttributes(null, registrationId, fetchesMessages,
                                               pin, registrationLockToken,
-                                              unidentifiedAccessKey, universalUnidentifiedAccess);
+                                              unidentifiedAccessKey, universalUnidentifiedAccess,
+                                              AppCapabilities.getCapabilities());
   }
 
   @Override
diff --git a/app/src/main/java/org/thoughtcrime/securesms/registration/service/CodeVerificationRequest.java b/app/src/main/java/org/thoughtcrime/securesms/registration/service/CodeVerificationRequest.java
index 495a213162..43bd63b5ce 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/registration/service/CodeVerificationRequest.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/registration/service/CodeVerificationRequest.java
@@ -7,6 +7,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import org.signal.zkgroup.profiles.ProfileKey;
+import org.thoughtcrime.securesms.AppCapabilities;
 import org.thoughtcrime.securesms.crypto.IdentityKeyUtil;
 import org.thoughtcrime.securesms.crypto.PreKeyUtil;
 import org.thoughtcrime.securesms.crypto.ProfileKeyUtil;
@@ -216,7 +217,8 @@ public final class CodeVerificationRequest {
 
     UUID uuid = accountManager.verifyAccountWithCode(code, null, registrationId, !present,
                                                      pinForServer, registrationLock,
-                                                     unidentifiedAccessKey, universalUnidentifiedAccess);
+                                                     unidentifiedAccessKey, universalUnidentifiedAccess,
+                                                     AppCapabilities.getCapabilities());
 
     IdentityKeyPair    identityKey  = IdentityKeyUtil.getIdentityKeyPair(context);
     List<PreKeyRecord> records      = PreKeyUtil.generatePreKeys(context);
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceAccountManager.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceAccountManager.java
index c61906c3c0..fce5221b66 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceAccountManager.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceAccountManager.java
@@ -27,6 +27,7 @@ import org.whispersystems.signalservice.api.push.exceptions.NoContentException;
 import org.whispersystems.signalservice.api.storage.StorageKey;
 import org.whispersystems.signalservice.api.messages.calls.TurnServerInfo;
 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
+import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 import org.whispersystems.signalservice.api.profiles.SignalServiceProfileWrite;
 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 import org.whispersystems.signalservice.api.push.SignedPreKeyEntity;
@@ -221,7 +222,8 @@ public class SignalServiceAccountManager {
    */
   public UUID verifyAccountWithCode(String verificationCode, String signalingKey, int signalProtocolRegistrationId, boolean fetchesMessages,
                                     String pin, String registrationLock,
-                                    byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess)
+                                    byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess,
+                                    SignalServiceProfile.Capabilities capabilities)
       throws IOException
   {
     return this.pushServiceSocket.verifyAccountCode(verificationCode, signalingKey,
@@ -229,7 +231,8 @@ public class SignalServiceAccountManager {
                                                     fetchesMessages,
                                                     pin, registrationLock,
                                                     unidentifiedAccessKey,
-                                                    unrestrictedUnidentifiedAccess);
+                                                    unrestrictedUnidentifiedAccess,
+                                                    capabilities);
   }
 
   /**
@@ -247,12 +250,14 @@ public class SignalServiceAccountManager {
    */
   public void setAccountAttributes(String signalingKey, int signalProtocolRegistrationId, boolean fetchesMessages,
                                    String pin, String registrationLock,
-                                   byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess)
+                                   byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess,
+                                   SignalServiceProfile.Capabilities capabilities)
       throws IOException
   {
     this.pushServiceSocket.setAccountAttributes(signalingKey, signalProtocolRegistrationId, fetchesMessages,
                                                 pin, registrationLock,
-                                                unidentifiedAccessKey, unrestrictedUnidentifiedAccess);
+                                                unidentifiedAccessKey, unrestrictedUnidentifiedAccess,
+                                                capabilities);
   }
 
   /**
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/profiles/SignalServiceProfile.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/profiles/SignalServiceProfile.java
index 03a5586634..f083387dbd 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/api/profiles/SignalServiceProfile.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/api/profiles/SignalServiceProfile.java
@@ -1,6 +1,7 @@
 package org.whispersystems.signalservice.api.profiles;
 
 
+import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
@@ -104,8 +105,14 @@ public class SignalServiceProfile {
     @JsonProperty
     private boolean gv2;
 
+    @JsonCreator
     public Capabilities() {}
 
+    public Capabilities(boolean uuid, boolean gv2) {
+      this.uuid = uuid;
+      this.gv2  = gv2;
+    }
+
     public boolean isUuid() {
       return uuid;
     }
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/AccountAttributes.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/AccountAttributes.java
index ad881637d3..9d9cfcc170 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/AccountAttributes.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/AccountAttributes.java
@@ -8,6 +8,8 @@ package org.whispersystems.signalservice.internal.push;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
+import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
+
 public class AccountAttributes {
 
   @JsonProperty
@@ -37,7 +39,18 @@ public class AccountAttributes {
   @JsonProperty
   private boolean unrestrictedUnidentifiedAccess;
 
-  public AccountAttributes(String signalingKey, int registrationId, boolean fetchesMessages, String pin, String registrationLock, byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess) {
+  @JsonProperty
+  private SignalServiceProfile.Capabilities capabilities;
+
+  public AccountAttributes(String signalingKey,
+                           int registrationId,
+                           boolean fetchesMessages,
+                           String pin,
+                           String registrationLock,
+                           byte[] unidentifiedAccessKey,
+                           boolean unrestrictedUnidentifiedAccess,
+                           SignalServiceProfile.Capabilities capabilities)
+  {
     this.signalingKey                   = signalingKey;
     this.registrationId                 = registrationId;
     this.voice                          = true;
@@ -47,6 +60,7 @@ public class AccountAttributes {
     this.registrationLock               = registrationLock;
     this.unidentifiedAccessKey          = unidentifiedAccessKey;
     this.unrestrictedUnidentifiedAccess = unrestrictedUnidentifiedAccess;
+    this.capabilities                   = capabilities;
   }
 
   public AccountAttributes() {}
@@ -86,4 +100,8 @@ public class AccountAttributes {
   public boolean isUnrestrictedUnidentifiedAccess() {
     return unrestrictedUnidentifiedAccess;
   }
+
+  public SignalServiceProfile.Capabilities getCapabilities() {
+    return capabilities;
+  }
 }
diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/PushServiceSocket.java b/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/PushServiceSocket.java
index 7538317cbf..5db8417ad5 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/PushServiceSocket.java
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/PushServiceSocket.java
@@ -249,10 +249,11 @@ public class PushServiceSocket {
 
   public UUID verifyAccountCode(String verificationCode, String signalingKey, int registrationId, boolean fetchesMessages,
                                 String pin, String registrationLock,
-                                byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess)
+                                byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess,
+                                SignalServiceProfile.Capabilities capabilities)
       throws IOException
   {
-    AccountAttributes     signalingKeyEntity = new AccountAttributes(signalingKey, registrationId, fetchesMessages, pin, registrationLock, unidentifiedAccessKey, unrestrictedUnidentifiedAccess);
+    AccountAttributes     signalingKeyEntity = new AccountAttributes(signalingKey, registrationId, fetchesMessages, pin, registrationLock, unidentifiedAccessKey, unrestrictedUnidentifiedAccess, capabilities);
     String                requestBody        = JsonUtil.toJson(signalingKeyEntity);
     String                responseBody       = makeServiceRequest(String.format(VERIFY_ACCOUNT_CODE_PATH, verificationCode), "PUT", requestBody);
     VerifyAccountResponse response           = JsonUtil.fromJson(responseBody, VerifyAccountResponse.class);
@@ -267,7 +268,8 @@ public class PushServiceSocket {
 
   public void setAccountAttributes(String signalingKey, int registrationId, boolean fetchesMessages,
                                    String pin, String registrationLock,
-                                   byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess)
+                                   byte[] unidentifiedAccessKey, boolean unrestrictedUnidentifiedAccess,
+                                   SignalServiceProfile.Capabilities capabilities)
       throws IOException
   {
     if (registrationLock != null && pin != null) {
@@ -275,7 +277,7 @@ public class PushServiceSocket {
     }
 
     AccountAttributes accountAttributes = new AccountAttributes(signalingKey, registrationId, fetchesMessages, pin, registrationLock,
-                                                                unidentifiedAccessKey, unrestrictedUnidentifiedAccess);
+                                                                unidentifiedAccessKey, unrestrictedUnidentifiedAccess, capabilities);
     makeServiceRequest(SET_ACCOUNT_ATTRIBUTES, "PUT", JsonUtil.toJson(accountAttributes));
   }