diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/DeviceController.java b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/DeviceController.java
index bd963d7a8..9e1e47320 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/DeviceController.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/DeviceController.java
@@ -188,7 +188,7 @@ public class DeviceController {
     }
 
     final DeviceCapabilities capabilities = accountAttributes.getCapabilities();
-    if (capabilities != null && isCapabilityDowngrade(account.get(), capabilities, userAgent)) {
+    if (capabilities != null && isCapabilityDowngrade(account.get(), capabilities)) {
       throw new WebApplicationException(Response.status(409).build());
     }
 
@@ -236,7 +236,7 @@ public class DeviceController {
     return new VerificationCode(randomInt);
   }
 
-  private boolean isCapabilityDowngrade(Account account, DeviceCapabilities capabilities, String userAgent) {
+  private boolean isCapabilityDowngrade(Account account, DeviceCapabilities capabilities) {
     boolean isDowngrade = false;
 
     isDowngrade |= account.isStoriesSupported() && !capabilities.isStories();
@@ -244,35 +244,8 @@ public class DeviceController {
     isDowngrade |= account.isChangeNumberSupported() && !capabilities.isChangeNumber();
     isDowngrade |= account.isAnnouncementGroupSupported() && !capabilities.isAnnouncementGroup();
     isDowngrade |= account.isSenderKeySupported() && !capabilities.isSenderKey();
-    isDowngrade |= account.isGv1MigrationSupported() && !capabilities.isGv1Migration();
     isDowngrade |= account.isGiftBadgesSupported() && !capabilities.isGiftBadges();
 
-    if (account.isGroupsV2Supported()) {
-      try {
-        switch (UserAgentUtil.parseUserAgentString(userAgent).getPlatform()) {
-          case DESKTOP:
-          case ANDROID: {
-            if (!capabilities.isGv2_3()) {
-              isDowngrade = true;
-            }
-
-            break;
-          }
-
-          case IOS: {
-            if (!capabilities.isGv2_2() && !capabilities.isGv2_3()) {
-              isDowngrade = true;
-            }
-
-            break;
-          }
-        }
-      } catch (final UnrecognizedUserAgentException e) {
-        // If we can't parse the UA string, the client is for sure too old to support groups V2
-        isDowngrade = true;
-      }
-    }
-
     return isDowngrade;
   }
 }
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/entities/UserCapabilities.java b/service/src/main/java/org/whispersystems/textsecuregcm/entities/UserCapabilities.java
index 86e8df619..a0c020650 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/entities/UserCapabilities.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/entities/UserCapabilities.java
@@ -12,8 +12,7 @@ public class UserCapabilities {
 
   public static UserCapabilities createForAccount(Account account) {
     return new UserCapabilities(
-        account.isGroupsV2Supported(),
-        account.isGv1MigrationSupported(),
+        true,
         account.isSenderKeySupported(),
         account.isAnnouncementGroupSupported(),
         account.isChangeNumberSupported(),
@@ -21,9 +20,6 @@ public class UserCapabilities {
         account.isGiftBadgesSupported());
   }
 
-  @JsonProperty
-  private boolean gv2;
-
   @JsonProperty("gv1-migration")
   private boolean gv1Migration;
 
@@ -45,7 +41,7 @@ public class UserCapabilities {
   public UserCapabilities() {
   }
 
-  public UserCapabilities(final boolean gv2,
+  public UserCapabilities(
       boolean gv1Migration,
       final boolean senderKey,
       final boolean announcementGroup,
@@ -53,7 +49,6 @@ public class UserCapabilities {
       final boolean stories,
       final boolean giftBadges) {
 
-    this.gv2 = gv2;
     this.gv1Migration = gv1Migration;
     this.senderKey = senderKey;
     this.announcementGroup = announcementGroup;
@@ -62,10 +57,6 @@ public class UserCapabilities {
     this.giftBadges = giftBadges;
   }
 
-  public boolean isGv2() {
-    return gv2;
-  }
-
   public boolean isGv1Migration() {
     return gv1Migration;
   }
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
index 84b183794..4dc21e955 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
@@ -181,14 +181,6 @@ public class Account {
     return devices.stream().filter(device -> device.getId() == deviceId).findFirst();
   }
 
-  public boolean isGroupsV2Supported() {
-    requireNotStale();
-
-    return devices.stream()
-                  .filter(Device::isEnabled)
-                  .allMatch(Device::isGroupsV2Supported);
-  }
-
   public boolean isStorageSupported() {
     requireNotStale();
 
@@ -201,10 +193,6 @@ public class Account {
     return getMasterDevice().map(Device::getCapabilities).map(Device.DeviceCapabilities::isTransfer).orElse(false);
   }
 
-  public boolean isGv1MigrationSupported() {
-    return allEnabledDevicesHaveCapability(DeviceCapabilities::isGv1Migration);
-  }
-
   public boolean isSenderKeySupported() {
     return allEnabledDevicesHaveCapability(DeviceCapabilities::isSenderKey);
   }
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java
index 740418dd4..479be70d5 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java
@@ -252,39 +252,13 @@ public class Device {
     return this.userAgent;
   }
 
-  public boolean isGroupsV2Supported() {
-    final boolean groupsV2Supported;
-
-    if (this.capabilities != null) {
-      final boolean ios = this.apnId != null || this.voipApnId != null;
-
-      groupsV2Supported = this.capabilities.isGv2_3() || (ios && this.capabilities.isGv2_2());
-    } else {
-      groupsV2Supported = false;
-    }
-
-    return groupsV2Supported;
-  }
-
   public static class DeviceCapabilities {
-    @JsonProperty
-    private boolean gv2;
-
-    @JsonProperty("gv2-2")
-    private boolean gv2_2;
-
-    @JsonProperty("gv2-3")
-    private boolean gv2_3;
-
     @JsonProperty
     private boolean storage;
 
     @JsonProperty
     private boolean transfer;
 
-    @JsonProperty("gv1-migration")
-    private boolean gv1Migration;
-
     @JsonProperty
     private boolean senderKey;
 
@@ -306,15 +280,11 @@ public class Device {
     public DeviceCapabilities() {
     }
 
-    public DeviceCapabilities(boolean gv2, final boolean gv2_2, final boolean gv2_3, boolean storage, boolean transfer,
-        boolean gv1Migration, final boolean senderKey, final boolean announcementGroup, final boolean changeNumber,
+    public DeviceCapabilities(boolean storage, boolean transfer,
+        final boolean senderKey, final boolean announcementGroup, final boolean changeNumber,
         final boolean pni, final boolean stories, final boolean giftBadges) {
-      this.gv2 = gv2;
-      this.gv2_2 = gv2_2;
-      this.gv2_3 = gv2_3;
       this.storage = storage;
       this.transfer = transfer;
-      this.gv1Migration = gv1Migration;
       this.senderKey = senderKey;
       this.announcementGroup = announcementGroup;
       this.changeNumber = changeNumber;
@@ -323,18 +293,6 @@ public class Device {
       this.giftBadges = giftBadges;
     }
 
-    public boolean isGv2() {
-      return gv2;
-    }
-
-    public boolean isGv2_2() {
-      return gv2_2;
-    }
-
-    public boolean isGv2_3() {
-      return gv2_3;
-    }
-
     public boolean isStorage() {
       return storage;
     }
@@ -343,10 +301,6 @@ public class Device {
       return transfer;
     }
 
-    public boolean isGv1Migration() {
-      return gv1Migration;
-    }
-
     public boolean isSenderKey() {
       return senderKey;
     }
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/controllers/ProfileControllerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/controllers/ProfileControllerTest.java
index 22cf988ef..16a8db9b5 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/controllers/ProfileControllerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/controllers/ProfileControllerTest.java
@@ -193,8 +193,6 @@ class ProfileControllerTest {
     when(profileAccount.getUuid()).thenReturn(AuthHelper.VALID_UUID_TWO);
     when(profileAccount.getPhoneNumberIdentifier()).thenReturn(AuthHelper.VALID_PNI_TWO);
     when(profileAccount.isEnabled()).thenReturn(true);
-    when(profileAccount.isGroupsV2Supported()).thenReturn(false);
-    when(profileAccount.isGv1MigrationSupported()).thenReturn(false);
     when(profileAccount.isSenderKeySupported()).thenReturn(false);
     when(profileAccount.isAnnouncementGroupSupported()).thenReturn(false);
     when(profileAccount.isChangeNumberSupported()).thenReturn(false);
@@ -207,8 +205,6 @@ class ProfileControllerTest {
     when(capabilitiesAccount.getIdentityKey()).thenReturn(ACCOUNT_IDENTITY_KEY);
     when(capabilitiesAccount.getPhoneNumberIdentityKey()).thenReturn(ACCOUNT_PHONE_NUMBER_IDENTITY_KEY);
     when(capabilitiesAccount.isEnabled()).thenReturn(true);
-    when(capabilitiesAccount.isGroupsV2Supported()).thenReturn(true);
-    when(capabilitiesAccount.isGv1MigrationSupported()).thenReturn(true);
     when(capabilitiesAccount.isSenderKeySupported()).thenReturn(true);
     when(capabilitiesAccount.isAnnouncementGroupSupported()).thenReturn(true);
     when(capabilitiesAccount.isChangeNumberSupported()).thenReturn(true);
@@ -396,7 +392,6 @@ class ProfileControllerTest {
                               .header("Authorization", AuthHelper.getAuthHeader(AuthHelper.VALID_UUID, AuthHelper.VALID_PASSWORD))
                               .get(BaseProfileResponse.class);
 
-    assertThat(profile.getCapabilities().isGv2()).isTrue();
     assertThat(profile.getCapabilities().isGv1Migration()).isTrue();
     assertThat(profile.getCapabilities().isSenderKey()).isTrue();
     assertThat(profile.getCapabilities().isAnnouncementGroup()).isTrue();
@@ -408,8 +403,7 @@ class ProfileControllerTest {
         .header("Authorization", AuthHelper.getAuthHeader(AuthHelper.VALID_UUID_TWO, AuthHelper.VALID_PASSWORD_TWO))
         .get(BaseProfileResponse.class);
 
-    assertThat(profile.getCapabilities().isGv2()).isFalse();
-    assertThat(profile.getCapabilities().isGv1Migration()).isFalse();
+    assertThat(profile.getCapabilities().isGv1Migration()).isTrue();
     assertThat(profile.getCapabilities().isSenderKey()).isFalse();
     assertThat(profile.getCapabilities().isAnnouncementGroup()).isFalse();
   }
@@ -753,8 +747,7 @@ class ProfileControllerTest {
     assertThat(profile.getAbout()).isEqualTo("about");
     assertThat(profile.getAboutEmoji()).isEqualTo("emoji");
     assertThat(profile.getAvatar()).isEqualTo("profiles/validavatar");
-    assertThat(profile.getBaseProfileResponse().getCapabilities().isGv2()).isFalse();
-    assertThat(profile.getBaseProfileResponse().getCapabilities().isGv1Migration()).isFalse();
+    assertThat(profile.getBaseProfileResponse().getCapabilities().isGv1Migration()).isTrue();
     assertThat(profile.getBaseProfileResponse().getUuid()).isEqualTo(AuthHelper.VALID_UUID_TWO);
     assertThat(profile.getBaseProfileResponse().getBadges()).hasSize(1).element(0).has(new Condition<>(
         badge -> "Test Badge".equals(badge.getName()), "has badge with expected name"));
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/storage/AccountsManagerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/storage/AccountsManagerTest.java
index 5a70e0798..c7f463b60 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/storage/AccountsManagerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/storage/AccountsManagerTest.java
@@ -603,7 +603,7 @@ class AccountsManagerTest {
   @ValueSource(booleans = {true, false})
   void testCreateWithStorageCapability(final boolean hasStorage) throws InterruptedException {
     final AccountAttributes attributes = new AccountAttributes(false, 0, null, null, true,
-        new DeviceCapabilities(false, false, false, hasStorage, false, false, false, false, false, false, false, false));
+        new DeviceCapabilities(hasStorage, false, false, false, false, false, false, false));
 
     final Account account = accountsManager.create("+18005550123", "password", null, attributes, new ArrayList<>());
 
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/storage/DeviceTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/storage/DeviceTest.java
index 4b7645dfa..237873593 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/storage/DeviceTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/storage/DeviceTest.java
@@ -73,66 +73,4 @@ class DeviceTest {
         Arguments.of(false, true, null, null, mock(SignedPreKey.class), Duration.ofDays(1), true)
     );
   }
-
-  @ParameterizedTest
-  @MethodSource("argumentsForTestIsGroupsV2Supported")
-  void testIsGroupsV2Supported(final boolean master, final String apnId, final boolean gv2Capability,
-      final boolean gv2_2Capability, final boolean gv2_3Capability, final boolean expectGv2Supported) {
-    final Device.DeviceCapabilities capabilities = new Device.DeviceCapabilities(gv2Capability, gv2_2Capability,
-        gv2_3Capability, false, false, false,
-        false, false, false, false, false, false);
-
-    final Device device = new Device();
-    device.setId(master ? Device.MASTER_ID : Device.MASTER_ID + 1);
-    device.setApnId(apnId);
-    device.setCapabilities(capabilities);
-
-    assertEquals(expectGv2Supported, device.isGroupsV2Supported());
-  }
-
-  private static Stream<Arguments> argumentsForTestIsGroupsV2Supported() {
-    return Stream.of(
-        //             master apnId     gv2    gv2-2  gv2-3  capable
-
-        // Android master
-        Arguments.of(true, null, false, false, false, false),
-        Arguments.of(true, null, true, false, false, false),
-        Arguments.of(true, null, false, true, false, false),
-        Arguments.of(true, null, true, true, false, false),
-        Arguments.of(true, null, false, false, true, true),
-        Arguments.of(true, null, true, false, true, true),
-        Arguments.of(true, null, false, true, true, true),
-        Arguments.of(true, null, true, true, true, true),
-
-        // iOS master
-        Arguments.of(true, "apn-id", false, false, false, false),
-        Arguments.of(true, "apn-id", true, false, false, false),
-        Arguments.of(true, "apn-id", false, true, false, true),
-        Arguments.of(true, "apn-id", true, true, false, true),
-        Arguments.of(true, "apn-id", false, false, true, true),
-        Arguments.of(true, "apn-id", true, false, true, true),
-        Arguments.of(true, "apn-id", false, true, true, true),
-        Arguments.of(true, "apn-id", true, true, true, true),
-
-        // iOS linked
-        Arguments.of(false, "apn-id", false, false, false, false),
-        Arguments.of(false, "apn-id", true, false, false, false),
-        Arguments.of(false, "apn-id", false, true, false, true),
-        Arguments.of(false, "apn-id", true, true, false, true),
-        Arguments.of(false, "apn-id", false, false, true, true),
-        Arguments.of(false, "apn-id", true, false, true, true),
-        Arguments.of(false, "apn-id", false, true, true, true),
-        Arguments.of(false, "apn-id", true, true, true, true),
-
-        // desktop linked
-        Arguments.of(false, null, false, false, false, false),
-        Arguments.of(false, null, true, false, false, false),
-        Arguments.of(false, null, false, true, false, false),
-        Arguments.of(false, null, true, true, false, false),
-        Arguments.of(false, null, false, false, true, true),
-        Arguments.of(false, null, true, false, true, true),
-        Arguments.of(false, null, false, true, true, true),
-        Arguments.of(false, null, true, true, true, true)
-    );
-  }
 }
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/tests/controllers/DeviceControllerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/tests/controllers/DeviceControllerTest.java
index cd7c665fb..74cccc140 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/tests/controllers/DeviceControllerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/tests/controllers/DeviceControllerTest.java
@@ -124,8 +124,6 @@ class DeviceControllerTest {
     when(account.getNumber()).thenReturn(AuthHelper.VALID_NUMBER);
     when(account.getUuid()).thenReturn(AuthHelper.VALID_UUID);
     when(account.isEnabled()).thenReturn(false);
-    when(account.isGroupsV2Supported()).thenReturn(true);
-    when(account.isGv1MigrationSupported()).thenReturn(true);
     when(account.isSenderKeySupported()).thenReturn(true);
     when(account.isAnnouncementGroupSupported()).thenReturn(true);
     when(account.isChangeNumberSupported()).thenReturn(true);
@@ -303,78 +301,9 @@ class DeviceControllerTest {
     verifyNoMoreInteractions(messagesManager);
   }
 
-  @ParameterizedTest
-  @MethodSource
-  void deviceDowngradeCapabilitiesTest(final String userAgent, final boolean gv2, final boolean gv2_2,
-      final boolean gv2_3, final int expectedStatus) {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(gv2, gv2_2, gv2_3, true, false, true, true, true,
-        true, true, true, true);
-    AccountAttributes accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
-    Response response = resources.getJerseyTest()
-        .target("/v1/devices/5678901")
-        .request()
-        .header("Authorization", AuthHelper.getProvisioningAuthHeader(AuthHelper.VALID_NUMBER, "password1"))
-        .header(HttpHeaders.USER_AGENT, userAgent)
-        .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
-
-    assertThat(response.getStatus()).isEqualTo(expectedStatus);
-
-    if (expectedStatus >= 300) {
-      verifyNoMoreInteractions(messagesManager);
-    }
-  }
-
-  private static Stream<Arguments> deviceDowngradeCapabilitiesTest() {
-    return Stream.of(
-            //            User-Agent                          gv2    gv2-2  gv2-3  expected
-            Arguments.of( "Signal-Android/4.68.3 Android/25", false, false, false, 409 ),
-            Arguments.of( "Signal-Android/4.68.3 Android/25", true,  false, false, 409 ),
-            Arguments.of( "Signal-Android/4.68.3 Android/25", false, true,  false, 409 ),
-            Arguments.of( "Signal-Android/4.68.3 Android/25", false, false, true,  200 ),
-            Arguments.of( "Signal-iOS/3.9.0",                 false, false, false, 409 ),
-            Arguments.of( "Signal-iOS/3.9.0",                 true,  false, false, 409 ),
-            Arguments.of( "Signal-iOS/3.9.0",                 false, true,  false, 200 ),
-            Arguments.of( "Signal-iOS/3.9.0",                 false, false, true,  200 ),
-            Arguments.of( "Signal-Desktop/1.32.0-beta.3",     false, false, false, 409 ),
-            Arguments.of( "Signal-Desktop/1.32.0-beta.3",     true,  false, false, 409 ),
-            Arguments.of( "Signal-Desktop/1.32.0-beta.3",     false, true,  false, 409 ),
-            Arguments.of( "Signal-Desktop/1.32.0-beta.3",     false, false, true,  200 ),
-            Arguments.of( "Old client with unparsable UA",    false, false, false, 409 ),
-            Arguments.of( "Old client with unparsable UA",    true,  false, false, 409 ),
-            Arguments.of( "Old client with unparsable UA",    false, true,  false, 409 ),
-            Arguments.of( "Old client with unparsable UA",    false, false, true,  409 )
-    );
-  }
-
-  @Test
-  void deviceDowngradeGv1MigrationTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, false, false, true, true,
-        true, true, true, true);
-    AccountAttributes accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
-    Response response = resources.getJerseyTest()
-                                 .target("/v1/devices/5678901")
-                                 .request()
-                                 .header("authorization", AuthHelper.getProvisioningAuthHeader(AuthHelper.VALID_NUMBER, "password1"))
-                                 .header(HttpHeaders.USER_AGENT, "Signal-Android/4.68.3 Android/25")
-                                 .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
-
-    assertThat(response.getStatus()).isEqualTo(409);
-
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, false, true, true, true, true, true, true, true);
-    accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
-    response = resources.getJerseyTest()
-                        .target("/v1/devices/5678901")
-                        .request()
-                        .header("authorization", AuthHelper.getProvisioningAuthHeader(AuthHelper.VALID_NUMBER, "password1"))
-                        .header(HttpHeaders.USER_AGENT, "Signal-Android/4.68.3 Android/25")
-                        .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
-
-    assertThat(response.getStatus()).isEqualTo(200);
-  }
-
   @Test
   void deviceDowngradeSenderKeyTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, false, true,
+    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, false, true,
         true, true, true, true);
     AccountAttributes accountAttributes =
         new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
@@ -387,7 +316,7 @@ class DeviceControllerTest {
         .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
     assertThat(response.getStatus()).isEqualTo(409);
 
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true);
+    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true);
     accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     response = resources
         .getJerseyTest()
@@ -401,7 +330,7 @@ class DeviceControllerTest {
 
   @Test
   void deviceDowngradeAnnouncementGroupTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, false,
+    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, false,
         true, true, true, true);
     AccountAttributes accountAttributes =
         new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
@@ -414,7 +343,7 @@ class DeviceControllerTest {
         .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
     assertThat(response.getStatus()).isEqualTo(409);
 
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true);
+    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true);
     accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     response = resources
         .getJerseyTest()
@@ -428,7 +357,7 @@ class DeviceControllerTest {
 
   @Test
   void deviceDowngradeChangeNumberTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true,
+    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true,
         false, true, true, true);
     AccountAttributes accountAttributes =
         new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
@@ -442,7 +371,7 @@ class DeviceControllerTest {
         .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
     assertThat(response.getStatus()).isEqualTo(409);
 
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true);
+    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true);
     accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     response = resources
         .getJerseyTest()
@@ -457,7 +386,7 @@ class DeviceControllerTest {
 
   @Test
   void deviceDowngradePniTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true,
+    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true,
         false, true, true);
     AccountAttributes accountAttributes =
         new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
@@ -470,7 +399,7 @@ class DeviceControllerTest {
         .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
     assertThat(response.getStatus()).isEqualTo(409);
 
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true);
+    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true);
     accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     response = resources
         .getJerseyTest()
@@ -485,7 +414,7 @@ class DeviceControllerTest {
 
   @Test
   void deviceDowngradeStoriesTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true,
+    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true,
         true, false, true);
     AccountAttributes accountAttributes =
         new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
@@ -499,7 +428,7 @@ class DeviceControllerTest {
         .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
     assertThat(response.getStatus()).isEqualTo(409);
 
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true);
+    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true);
     accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     response = resources
         .getJerseyTest()
@@ -514,7 +443,7 @@ class DeviceControllerTest {
 
   @Test
   void deviceDowngradeGiftBadgesTest() {
-    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, false);
+    DeviceCapabilities deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, false);
     AccountAttributes accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     Response response = resources
         .getJerseyTest()
@@ -525,7 +454,7 @@ class DeviceControllerTest {
         .put(Entity.entity(accountAttributes, MediaType.APPLICATION_JSON_TYPE));
     assertThat(response.getStatus()).isEqualTo(409);
 
-    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true);
+    deviceCapabilities = new DeviceCapabilities(true, true, true, true, true, true, true, true);
     accountAttributes = new AccountAttributes(false, 1234, null, null, true, deviceCapabilities);
     response = resources
         .getJerseyTest()
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/AccountTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/AccountTest.java
index d2f1afa06..3a36d8dc1 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/AccountTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/AccountTest.java
@@ -40,14 +40,6 @@ class AccountTest {
   private final Device recentSecondaryDevice = mock(Device.class);
   private final Device oldSecondaryDevice = mock(Device.class);
 
-  private final Device gv2CapableDevice = mock(Device.class);
-  private final Device gv2IncapableDevice = mock(Device.class);
-  private final Device gv2IncapableExpiredDevice = mock(Device.class);
-
-  private final Device gv1MigrationCapableDevice = mock(Device.class);
-  private final Device gv1MigrationIncapableDevice = mock(Device.class);
-  private final Device gv1MigrationIncapableExpiredDevice = mock(Device.class);
-
   private final Device senderKeyCapableDevice = mock(Device.class);
   private final Device senderKeyIncapableDevice = mock(Device.class);
   private final Device senderKeyIncapableExpiredDevice = mock(Device.class);
@@ -94,101 +86,77 @@ class AccountTest {
     when(oldSecondaryDevice.isEnabled()).thenReturn(false);
     when(oldSecondaryDevice.getId()).thenReturn(2L);
 
-    when(gv2CapableDevice.isGroupsV2Supported()).thenReturn(true);
-    when(gv2CapableDevice.getLastSeen()).thenReturn(System.currentTimeMillis() - TimeUnit.DAYS.toMillis(1));
-    when(gv2CapableDevice.isEnabled()).thenReturn(true);
-
-    when(gv2IncapableDevice.isGroupsV2Supported()).thenReturn(false);
-    when(gv2IncapableDevice.getLastSeen()).thenReturn(System.currentTimeMillis() - TimeUnit.DAYS.toMillis(1));
-    when(gv2IncapableDevice.isEnabled()).thenReturn(true);
-
-    when(gv2IncapableExpiredDevice.isGroupsV2Supported()).thenReturn(false);
-    when(gv2IncapableExpiredDevice.getLastSeen()).thenReturn(System.currentTimeMillis() - TimeUnit.DAYS.toMillis(31));
-    when(gv2IncapableExpiredDevice.isEnabled()).thenReturn(false);
-
-    when(gv1MigrationCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, false, false, false, false, false, false));
-    when(gv1MigrationCapableDevice.isEnabled()).thenReturn(true);
-
-    when(gv1MigrationIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, false, false, false, false, false, false, false));
-    when(gv1MigrationIncapableDevice.isEnabled()).thenReturn(true);
-
-    when(gv1MigrationIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, false, false, false, false, false, false, false));
-    when(gv1MigrationIncapableExpiredDevice.isEnabled()).thenReturn(false);
-
     when(senderKeyCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(senderKeyCapableDevice.isEnabled()).thenReturn(true);
 
     when(senderKeyIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, false, false, false, false, false, false));
+        new DeviceCapabilities(true, true, false, false, false, false, false, false));
     when(senderKeyIncapableDevice.isEnabled()).thenReturn(true);
 
     when(senderKeyIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, false, false, false, false, false, false));
+        new DeviceCapabilities(true, true, false, false, false, false, false, false));
     when(senderKeyIncapableExpiredDevice.isEnabled()).thenReturn(false);
 
     when(announcementGroupCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, true, false, false, false, false));
+        new DeviceCapabilities(true, true, true, true, false, false, false, false));
     when(announcementGroupCapableDevice.isEnabled()).thenReturn(true);
 
     when(announcementGroupIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(announcementGroupIncapableDevice.isEnabled()).thenReturn(true);
 
     when(announcementGroupIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(announcementGroupIncapableExpiredDevice.isEnabled()).thenReturn(false);
 
     when(changeNumberCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, true, false, false, false));
+        new DeviceCapabilities(true, true, true, false, true, false, false, false));
     when(changeNumberCapableDevice.isEnabled()).thenReturn(true);
 
     when(changeNumberIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(changeNumberIncapableDevice.isEnabled()).thenReturn(true);
 
     when(changeNumberIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(changeNumberIncapableExpiredDevice.isEnabled()).thenReturn(false);
 
     when(pniCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, true, false, false));
+        new DeviceCapabilities(true, true, true, false, false, true, false, false));
     when(pniCapableDevice.isEnabled()).thenReturn(true);
 
     when(pniIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(pniIncapableDevice.isEnabled()).thenReturn(true);
 
     when(pniIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(pniIncapableExpiredDevice.isEnabled()).thenReturn(false);
 
     when(storiesCapableDevice.getId()).thenReturn(1L);
     when(storiesCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, true, false));
+        new DeviceCapabilities(true, true, true, false, false, false, true, false));
     when(storiesCapableDevice.isEnabled()).thenReturn(true);
 
     when(storiesCapableDevice.getId()).thenReturn(2L);
     when(storiesIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(storiesIncapableDevice.isEnabled()).thenReturn(true);
 
     when(storiesCapableDevice.getId()).thenReturn(3L);
     when(storiesIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, false, false, false, false, false));
+        new DeviceCapabilities(true, true, true, false, false, false, false, false));
     when(storiesIncapableExpiredDevice.isEnabled()).thenReturn(false);
 
     when(giftBadgesCapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, true));
+        new DeviceCapabilities(true, true, true, true, true, true, true, true));
     when(giftBadgesCapableDevice.isEnabled()).thenReturn(true);
     when(giftBadgesIncapableDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, false));
+        new DeviceCapabilities(true, true, true, true, true, true, true, false));
     when(giftBadgesIncapableDevice.isEnabled()).thenReturn(true);
     when(giftBadgesIncapableExpiredDevice.getCapabilities()).thenReturn(
-        new DeviceCapabilities(true, true, true, true, true, true, true, true, true, true, true, false));
+        new DeviceCapabilities(true, true, true, true, true, true, true, false));
     when(giftBadgesIncapableExpiredDevice.isEnabled()).thenReturn(false);
   }
 
@@ -217,17 +185,6 @@ class AccountTest {
     assertFalse(AccountsHelper.generateTestAccount("+14151234567", List.of(disabledMasterDevice, disabledLinkedDevice)).isEnabled());
   }
 
-  @Test
-  void testCapabilities() {
-    final Account uuidCapable = AccountsHelper.generateTestAccount("+14152222222", UUID.randomUUID(), UUID.randomUUID(), List.of(gv2CapableDevice), "1234".getBytes());
-    final Account uuidIncapable = AccountsHelper.generateTestAccount("+14152222222", UUID.randomUUID(), UUID.randomUUID(), List.of(gv2CapableDevice, gv2IncapableDevice), "1234".getBytes());
-    final Account uuidCapableWithExpiredIncapable = AccountsHelper.generateTestAccount("+14152222222", UUID.randomUUID(), UUID.randomUUID(), List.of(gv2CapableDevice, gv2IncapableExpiredDevice), "1234".getBytes());
-
-    assertTrue(uuidCapable.isGroupsV2Supported());
-    assertFalse(uuidIncapable.isGroupsV2Supported());
-    assertTrue(uuidCapableWithExpiredIncapable.isGroupsV2Supported());
-  }
-
   @Test
   void testIsTransferSupported() {
     final Device transferCapableMasterDevice = mock(Device.class);
@@ -288,31 +245,6 @@ class AccountTest {
     assertTrue(account.isDiscoverableByPhoneNumber());
   }
 
-  @Test
-  void isGroupsV2Supported() {
-    assertTrue(AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(), UUID.randomUUID(), List.of(gv2CapableDevice),
-        "1234".getBytes(StandardCharsets.UTF_8)).isGroupsV2Supported());
-    assertTrue(AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(), UUID.randomUUID(),
-        List.of(gv2CapableDevice, gv2IncapableExpiredDevice),
-        "1234".getBytes(StandardCharsets.UTF_8)).isGroupsV2Supported());
-    assertFalse(AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(), UUID.randomUUID(),
-        List.of(gv2CapableDevice, gv2IncapableDevice),
-        "1234".getBytes(StandardCharsets.UTF_8)).isGroupsV2Supported());
-  }
-
-  @Test
-  void isGv1MigrationSupported() {
-    assertTrue(AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(), UUID.randomUUID(), List.of(gv1MigrationCapableDevice),
-        "1234".getBytes(StandardCharsets.UTF_8)).isGv1MigrationSupported());
-    assertFalse(
-        AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(), UUID.randomUUID(),
-            List.of(gv1MigrationCapableDevice, gv1MigrationIncapableDevice),
-            "1234".getBytes(StandardCharsets.UTF_8)).isGv1MigrationSupported());
-    assertTrue(AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(),
-        UUID.randomUUID(), List.of(gv1MigrationCapableDevice, gv1MigrationIncapableExpiredDevice), "1234".getBytes(StandardCharsets.UTF_8))
-        .isGv1MigrationSupported());
-  }
-
   @Test
   void isSenderKeySupported() {
     assertThat(AccountsHelper.generateTestAccount("+18005551234", UUID.randomUUID(), UUID.randomUUID(), List.of(senderKeyCapableDevice),
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/tests/util/AccountsHelper.java b/service/src/test/java/org/whispersystems/textsecuregcm/tests/util/AccountsHelper.java
index 2e0d05558..48c3e237b 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/tests/util/AccountsHelper.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/tests/util/AccountsHelper.java
@@ -120,8 +120,6 @@ public class AccountsHelper {
           case "isEnabled" -> when(updatedAccount.isEnabled()).thenAnswer(stubbing);
           case "isDiscoverableByPhoneNumber" -> when(updatedAccount.isDiscoverableByPhoneNumber()).thenAnswer(stubbing);
           case "getNextDeviceId" -> when(updatedAccount.getNextDeviceId()).thenAnswer(stubbing);
-          case "isGroupsV2Supported" -> when(updatedAccount.isGroupsV2Supported()).thenAnswer(stubbing);
-          case "isGv1MigrationSupported" -> when(updatedAccount.isGv1MigrationSupported()).thenAnswer(stubbing);
           case "isSenderKeySupported" -> when(updatedAccount.isSenderKeySupported()).thenAnswer(stubbing);
           case "isAnnouncementGroupSupported" -> when(updatedAccount.isAnnouncementGroupSupported()).thenAnswer(stubbing);
           case "isChangeNumberSupported" -> when(updatedAccount.isChangeNumberSupported()).thenAnswer(stubbing);