diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 59968c74e..b7b67ef42 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -5116,6 +5116,30 @@
       }
     }
   },
+  "GroupV2--admin-approval-bounce--one": {
+    "message": "$joinerName$ requested and cancelled their request to join via the group link",
+    "description": "Shown in timeline or conversation preview when v2 group changes",
+    "placeholders": {
+      "joinerName": {
+        "content": "$1",
+        "example": "Alice"
+      }
+    }
+  },
+  "GroupV2--admin-approval-bounce": {
+    "message": "$joinerName$ requested and cancelled $numberOfRequests$ requests to join via the group link",
+    "description": "Shown in timeline or conversation preview when v2 group changes",
+    "placeholders": {
+      "joinerName": {
+        "content": "$1",
+        "example": "Alice"
+      },
+      "numberOfRequests": {
+        "content": "$1",
+        "example": "3"
+      }
+    }
+  },
 
   "GroupV2--group-link-add--disabled--you": {
     "message": "You turned on the group link with admin approval disabled.",
@@ -5796,6 +5820,30 @@
     "message": "Details about people invited to this group aren’t shown until they join. Invitees will only see messages after they join the group.",
     "description": "Information shown below the invite list"
   },
+
+  "PendingRequests--block--button": {
+    "message": "Block request",
+    "description": "Shown in timeline if users cancel their request to join a group via a group link"
+  },
+  "PendingRequests--block--title": {
+    "message": "Block request?",
+    "description": "Title of dialog to block a user from requesting to join via the link again"
+  },
+  "PendingRequests--block--contents": {
+    "message": "$name$ will not be able to join or request to join this group via the group link. They can still be added to the group manually.",
+    "description": "Details of dialog to block a user from requesting to join via the link again",
+    "placeholders": {
+      "name": {
+        "content": "$1",
+        "example": "Annoying Person"
+      }
+    }
+  },
+  "PendingRequests--block--confirm": {
+    "message": "Block Request",
+    "description": "Confirmation button of dialog to block a user from requesting to join via the link again"
+  },
+
   "AvatarInput--no-photo-label--group": {
     "message": "Add a group photo",
     "description": "The label for the avatar uploader when no group photo is selected"
diff --git a/ts/components/Intl.tsx b/ts/components/Intl.tsx
index 7a6d612e0..3b1767a9c 100644
--- a/ts/components/Intl.tsx
+++ b/ts/components/Intl.tsx
@@ -70,6 +70,11 @@ export class Intl extends React.Component<Props> {
   public override render() {
     const { components, id, i18n, renderText } = this.props;
 
+    if (!id) {
+      log.error('Error: Intl id prop not provided');
+      return null;
+    }
+
     const text = i18n(id);
     const results: Array<
       string | JSX.Element | Array<string | JSX.Element> | null
diff --git a/ts/components/conversation/GroupV2Change.stories.tsx b/ts/components/conversation/GroupV2Change.stories.tsx
index c15ecca56..d6f49fe42 100644
--- a/ts/components/conversation/GroupV2Change.stories.tsx
+++ b/ts/components/conversation/GroupV2Change.stories.tsx
@@ -3,10 +3,12 @@
 
 /* eslint-disable-next-line max-classes-per-file */
 import * as React from 'react';
+import { action } from '@storybook/addon-actions';
 import { storiesOf } from '@storybook/react';
 
 import { setupI18n } from '../../util/setupI18n';
 import { UUID } from '../../types/UUID';
+import type { UUIDStringType } from '../../types/UUID';
 import enMessages from '../../../_locales/en/messages.json';
 import type { GroupV2ChangeType } from '../../groups';
 import { SignalService as Proto } from '../../protobuf';
@@ -34,9 +36,29 @@ const renderContact: SmartContactRendererType<FullJSXType> = (
   </React.Fragment>
 );
 
-const renderChange = (change: GroupV2ChangeType, groupName?: string) => (
+const renderChange = (
+  change: GroupV2ChangeType,
+  {
+    groupBannedMemberships,
+    groupMemberships,
+    groupName,
+    areWeAdmin = true,
+  }: {
+    groupMemberships?: Array<{
+      uuid: UUIDStringType;
+      isAdmin: boolean;
+    }>;
+    groupBannedMemberships?: Array<UUIDStringType>;
+    groupName?: string;
+    areWeAdmin?: boolean;
+  } = {}
+) => (
   <GroupV2Change
+    areWeAdmin={areWeAdmin ?? true}
+    blockGroupLinkRequests={action('blockGroupLinkRequests')}
     change={change}
+    groupBannedMemberships={groupBannedMemberships}
+    groupMemberships={groupMemberships}
     groupName={groupName}
     i18n={i18n}
     ourUuid={OUR_ID}
@@ -1176,15 +1198,22 @@ storiesOf('Components/Conversation/GroupV2Change', module)
             },
           ],
         })}
-        {renderChange({
-          from: CONTACT_A,
-          details: [
-            {
-              type: 'admin-approval-remove-one',
-              uuid: CONTACT_A,
-            },
-          ],
-        })}
+        Should show button:
+        {renderChange(
+          {
+            from: CONTACT_A,
+            details: [
+              {
+                type: 'admin-approval-remove-one',
+                uuid: CONTACT_A,
+              },
+            ],
+          },
+          {
+            groupMemberships: [{ uuid: CONTACT_C, isAdmin: false }],
+            groupBannedMemberships: [CONTACT_B],
+          }
+        )}
         {renderChange({
           from: ADMIN_A,
           details: [
@@ -1194,14 +1223,62 @@ storiesOf('Components/Conversation/GroupV2Change', module)
             },
           ],
         })}
-        {renderChange({
-          details: [
-            {
-              type: 'admin-approval-remove-one',
-              uuid: CONTACT_A,
-            },
-          ],
-        })}
+        Should show button:
+        {renderChange(
+          {
+            details: [
+              {
+                type: 'admin-approval-remove-one',
+                uuid: CONTACT_A,
+              },
+            ],
+          },
+          {
+            groupMemberships: [{ uuid: CONTACT_C, isAdmin: false }],
+            groupBannedMemberships: [CONTACT_B],
+          }
+        )}
+        Would show button, but we&apos;re not admin:
+        {renderChange(
+          {
+            from: CONTACT_A,
+            details: [
+              {
+                type: 'admin-approval-remove-one',
+                uuid: CONTACT_A,
+              },
+            ],
+          },
+
+          { areWeAdmin: false, groupName: 'Group 1' }
+        )}
+        Would show button, but user is a group member:
+        {renderChange(
+          {
+            from: CONTACT_A,
+            details: [
+              {
+                type: 'admin-approval-remove-one',
+                uuid: CONTACT_A,
+              },
+            ],
+          },
+          { groupMemberships: [{ uuid: CONTACT_A, isAdmin: false }] }
+        )}
+        Would show button, but user is already banned:
+        {renderChange(
+          {
+            from: CONTACT_A,
+            details: [
+              {
+                type: 'admin-approval-remove-one',
+                uuid: CONTACT_A,
+              },
+            ],
+          },
+
+          { groupBannedMemberships: [CONTACT_A] }
+        )}
       </>
     );
   })
@@ -1367,7 +1444,7 @@ storiesOf('Components/Conversation/GroupV2Change', module)
               },
             ],
           },
-          'We do hikes 🌲'
+          { groupName: 'We do hikes 🌲' }
         )}
         {renderChange(
           {
@@ -1380,7 +1457,7 @@ storiesOf('Components/Conversation/GroupV2Change', module)
               },
             ],
           },
-          'We do hikes 🌲'
+          { groupName: 'We do hikes 🌲' }
         )}
         {renderChange(
           {
@@ -1392,7 +1469,7 @@ storiesOf('Components/Conversation/GroupV2Change', module)
               },
             ],
           },
-          'We do hikes 🌲'
+          { groupName: 'We do hikes 🌲' }
         )}
       </>
     );
diff --git a/ts/components/conversation/GroupV2Change.tsx b/ts/components/conversation/GroupV2Change.tsx
index 0e2843551..6d8706342 100644
--- a/ts/components/conversation/GroupV2Change.tsx
+++ b/ts/components/conversation/GroupV2Change.tsx
@@ -1,10 +1,11 @@
 // Copyright 2020-2022 Signal Messenger, LLC
 // SPDX-License-Identifier: AGPL-3.0-only
 
-import type { ReactElement } from 'react';
+import type { ReactElement, ReactNode } from 'react';
 import React, { useState } from 'react';
 import { get } from 'lodash';
 
+import * as log from '../../logging/log';
 import type { ReplacementValuesType } from '../../types/I18N';
 import type { FullJSXType } from '../Intl';
 import { Intl } from '../Intl';
@@ -19,19 +20,32 @@ import type { GroupV2ChangeType, GroupV2ChangeDetailType } from '../../groups';
 import type { SmartContactRendererType } from '../../groupChange';
 import { renderChange } from '../../groupChange';
 import { Modal } from '../Modal';
+import { ConfirmationDialog } from '../ConfirmationDialog';
 
 export type PropsDataType = {
+  areWeAdmin: boolean;
+  groupMemberships?: Array<{
+    uuid: UUIDStringType;
+    isAdmin: boolean;
+  }>;
+  groupBannedMemberships?: Array<UUIDStringType>;
   groupName?: string;
   ourUuid?: UUIDStringType;
   change: GroupV2ChangeType;
 };
 
+export type PropsActionsType = {
+  blockGroupLinkRequests: (uuid: UUIDStringType) => unknown;
+};
+
 export type PropsHousekeepingType = {
   i18n: LocalizerType;
   renderContact: SmartContactRendererType<FullJSXType>;
 };
 
-export type PropsType = PropsDataType & PropsHousekeepingType;
+export type PropsType = PropsDataType &
+  PropsActionsType &
+  PropsHousekeepingType;
 
 function renderStringToIntl(
   id: string,
@@ -41,6 +55,12 @@ function renderStringToIntl(
   return <Intl id={id} i18n={i18n} components={components} />;
 }
 
+enum ModalState {
+  None = 'None',
+  ViewingGroupDescription = 'ViewingGroupDescription',
+  ConfirmingblockGroupLinkRequests = 'ConfirmingblockGroupLinkRequests',
+}
+
 type GroupIconType =
   | 'group'
   | 'group-access'
@@ -58,6 +78,7 @@ const changeToIconMap = new Map<string, GroupIconType>([
   ['access-members', 'group-access'],
   ['admin-approval-add-one', 'group-add'],
   ['admin-approval-remove-one', 'group-decline'],
+  ['admin-approval-bounce', 'group-decline'],
   ['announcements-only', 'group-access'],
   ['avatar', 'group-avatar'],
   ['description', 'group-edit'],
@@ -79,6 +100,7 @@ const changeToIconMap = new Map<string, GroupIconType>([
 
 function getIcon(
   detail: GroupV2ChangeDetailType,
+  isLastText = true,
   fromId?: UUIDStringType
 ): GroupIconType {
   const changeType = detail.type;
@@ -92,52 +114,170 @@ function getIcon(
       possibleIcon = 'group-approved';
     }
   }
+  // Use default icon for "... requested to join via group link" added to
+  // bounce notification.
+  if (changeType === 'admin-approval-bounce' && isLastText) {
+    possibleIcon = undefined;
+  }
   return possibleIcon || 'group';
 }
 
 function GroupV2Detail({
+  areWeAdmin,
+  blockGroupLinkRequests,
   detail,
-  i18n,
+  isLastText,
   fromId,
-  onButtonClick,
+  groupMemberships,
+  groupBannedMemberships,
+  groupName,
+  i18n,
+  ourUuid,
+  renderContact,
   text,
 }: {
+  areWeAdmin: boolean;
+  blockGroupLinkRequests: (uuid: UUIDStringType) => unknown;
   detail: GroupV2ChangeDetailType;
+  isLastText: boolean;
+  groupMemberships?: Array<{
+    uuid: UUIDStringType;
+    isAdmin: boolean;
+  }>;
+  groupBannedMemberships?: Array<UUIDStringType>;
+  groupName?: string;
   i18n: LocalizerType;
   fromId?: UUIDStringType;
-  onButtonClick: (x: string) => unknown;
+  ourUuid?: UUIDStringType;
+  renderContact: SmartContactRendererType<FullJSXType>;
   text: FullJSXType;
 }): JSX.Element {
-  const icon = getIcon(detail, fromId);
+  const icon = getIcon(detail, isLastText, fromId);
+  let buttonNode: ReactNode;
 
-  const newGroupDescription =
-    detail.type === 'description' && get(detail, 'description');
+  const [modalState, setModalState] = useState<ModalState>(ModalState.None);
+  let modalNode: ReactNode;
+
+  switch (modalState) {
+    case ModalState.None:
+      modalNode = undefined;
+      break;
+    case ModalState.ViewingGroupDescription:
+      if (detail.type !== 'description' || !detail.description) {
+        log.warn(
+          'GroupV2Detail: ViewingGroupDescription but missing description or wrong change type'
+        );
+        modalNode = undefined;
+        break;
+      }
+
+      modalNode = (
+        <Modal
+          hasXButton
+          i18n={i18n}
+          title={groupName}
+          onClose={() => setModalState(ModalState.None)}
+        >
+          <GroupDescriptionText text={detail.description} />
+        </Modal>
+      );
+      break;
+    case ModalState.ConfirmingblockGroupLinkRequests:
+      if (
+        !isLastText ||
+        detail.type !== 'admin-approval-bounce' ||
+        !detail.uuid
+      ) {
+        log.warn(
+          'GroupV2Detail: ConfirmingblockGroupLinkRequests but missing uuid or wrong change type'
+        );
+        modalNode = undefined;
+        break;
+      }
+
+      modalNode = (
+        <ConfirmationDialog
+          title={i18n('PendingRequests--block--title')}
+          actions={[
+            {
+              action: () => blockGroupLinkRequests(detail.uuid),
+              text: i18n('PendingRequests--block--confirm'),
+            },
+          ]}
+          i18n={i18n}
+          onClose={() => setModalState(ModalState.None)}
+        >
+          <Intl
+            id="PendingRequests--block--contents"
+            i18n={i18n}
+            components={{
+              name: renderContact(detail.uuid),
+            }}
+          />
+        </ConfirmationDialog>
+      );
+      break;
+    default: {
+      const state: never = modalState;
+      log.warn(`GroupV2Detail: unexpected modal state ${state}`);
+      modalNode = undefined;
+      break;
+    }
+  }
+
+  if (detail.type === 'description' && detail.description) {
+    buttonNode = (
+      <Button
+        onClick={() => setModalState(ModalState.ViewingGroupDescription)}
+        size={ButtonSize.Small}
+        variant={ButtonVariant.SystemMessage}
+      >
+        {i18n('view')}
+      </Button>
+    );
+  } else if (
+    isLastText &&
+    detail.type === 'admin-approval-bounce' &&
+    areWeAdmin &&
+    detail.uuid &&
+    detail.uuid !== ourUuid &&
+    (!fromId || fromId === detail.uuid) &&
+    !groupMemberships?.some(item => item.uuid === detail.uuid) &&
+    !groupBannedMemberships?.some(uuid => uuid === detail.uuid)
+  ) {
+    buttonNode = (
+      <Button
+        onClick={() =>
+          setModalState(ModalState.ConfirmingblockGroupLinkRequests)
+        }
+        size={ButtonSize.Small}
+        variant={ButtonVariant.SystemMessage}
+      >
+        {i18n('PendingRequests--block--button')}
+      </Button>
+    );
+  }
 
   return (
-    <SystemMessage
-      icon={icon}
-      contents={text}
-      button={
-        newGroupDescription ? (
-          <Button
-            onClick={() => onButtonClick(newGroupDescription)}
-            size={ButtonSize.Small}
-            variant={ButtonVariant.SystemMessage}
-          >
-            {i18n('view')}
-          </Button>
-        ) : undefined
-      }
-    />
+    <>
+      <SystemMessage icon={icon} contents={text} button={buttonNode} />
+      {modalNode}
+    </>
   );
 }
 
 export function GroupV2Change(props: PropsType): ReactElement {
-  const { change, groupName, i18n, ourUuid, renderContact } = props;
-
-  const [groupDescription, setGroupDescription] = useState<
-    string | undefined
-  >();
+  const {
+    areWeAdmin,
+    blockGroupLinkRequests,
+    change,
+    groupBannedMemberships,
+    groupMemberships,
+    groupName,
+    i18n,
+    ourUuid,
+    renderContact,
+  } = props;
 
   return (
     <>
@@ -146,30 +286,27 @@ export function GroupV2Change(props: PropsType): ReactElement {
         ourUuid,
         renderContact,
         renderString: renderStringToIntl,
-      }).map((text: FullJSXType, index: number) => (
-        <GroupV2Detail
-          detail={change.details[index]}
-          fromId={change.from}
-          i18n={i18n}
-          // Difficult to find a unique key for this type
-          // eslint-disable-next-line react/no-array-index-key
-          key={index}
-          onButtonClick={nextGroupDescription =>
-            setGroupDescription(nextGroupDescription)
-          }
-          text={text}
-        />
-      ))}
-      {groupDescription ? (
-        <Modal
-          hasXButton
-          i18n={i18n}
-          title={groupName}
-          onClose={() => setGroupDescription(undefined)}
-        >
-          <GroupDescriptionText text={groupDescription} />
-        </Modal>
-      ) : null}
+      }).map(({ detail, isLastText, text }, index) => {
+        return (
+          <GroupV2Detail
+            areWeAdmin={areWeAdmin}
+            blockGroupLinkRequests={blockGroupLinkRequests}
+            detail={detail}
+            isLastText={isLastText}
+            fromId={change.from}
+            groupBannedMemberships={groupBannedMemberships}
+            groupMemberships={groupMemberships}
+            groupName={groupName}
+            i18n={i18n}
+            // Difficult to find a unique key for this type
+            // eslint-disable-next-line react/no-array-index-key
+            key={index}
+            ourUuid={ourUuid}
+            renderContact={renderContact}
+            text={text}
+          />
+        );
+      })}
     </>
   );
 }
diff --git a/ts/components/conversation/Timeline.stories.tsx b/ts/components/conversation/Timeline.stories.tsx
index dadfad4b4..97b609738 100644
--- a/ts/components/conversation/Timeline.stories.tsx
+++ b/ts/components/conversation/Timeline.stories.tsx
@@ -337,6 +337,7 @@ const actions = () => ({
   acknowledgeGroupMemberNameCollisions: action(
     'acknowledgeGroupMemberNameCollisions'
   ),
+  blockGroupLinkRequests: action('blockGroupLinkRequests'),
   checkForAccount: action('checkForAccount'),
   clearInvitedUuidsForNewlyCreatedGroup: action(
     'clearInvitedUuidsForNewlyCreatedGroup'
diff --git a/ts/components/conversation/Timeline.tsx b/ts/components/conversation/Timeline.tsx
index 0bc929ce7..8d21b7129 100644
--- a/ts/components/conversation/Timeline.tsx
+++ b/ts/components/conversation/Timeline.tsx
@@ -21,6 +21,7 @@ import { WidthBreakpoint } from '../_util';
 import type { PropsActions as MessageActionsType } from './Message';
 import type { PropsActions as UnsupportedMessageActionsType } from './UnsupportedMessage';
 import type { PropsActionsType as ChatSessionRefreshedNotificationActionsType } from './ChatSessionRefreshedNotification';
+import type { PropsActionsType as GroupV2ChangeActionsType } from './GroupV2Change';
 import { ErrorBoundary } from './ErrorBoundary';
 import type { PropsActions as SafetyNumberActionsType } from './SafetyNumberNotification';
 import { Intl } from '../Intl';
@@ -167,6 +168,7 @@ export type PropsActionsType = {
 } & MessageActionsType &
   SafetyNumberActionsType &
   UnsupportedMessageActionsType &
+  GroupV2ChangeActionsType &
   ChatSessionRefreshedNotificationActionsType;
 
 export type PropsType = PropsDataType &
@@ -199,6 +201,7 @@ const getActions = createSelector(
   (props: PropsType): PropsActionsType => {
     const unsafe = pick(props, [
       'acknowledgeGroupMemberNameCollisions',
+      'blockGroupLinkRequests',
       'clearInvitedUuidsForNewlyCreatedGroup',
       'closeContactSpoofingReview',
       'setIsNearBottom',
diff --git a/ts/components/conversation/TimelineItem.stories.tsx b/ts/components/conversation/TimelineItem.stories.tsx
index a02acd332..f19c14745 100644
--- a/ts/components/conversation/TimelineItem.stories.tsx
+++ b/ts/components/conversation/TimelineItem.stories.tsx
@@ -65,6 +65,7 @@ const getDefaultProps = () => ({
   replyToMessage: action('replyToMessage'),
   retryDeleteForEveryone: action('retryDeleteForEveryone'),
   retrySend: action('retrySend'),
+  blockGroupLinkRequests: action('blockGroupLinkRequests'),
   deleteMessage: action('deleteMessage'),
   deleteMessageForEveryone: action('deleteMessageForEveryone'),
   kickOffAttachmentDownload: action('kickOffAttachmentDownload'),
diff --git a/ts/components/conversation/TimelineItem.tsx b/ts/components/conversation/TimelineItem.tsx
index 1575835fb..90189789e 100644
--- a/ts/components/conversation/TimelineItem.tsx
+++ b/ts/components/conversation/TimelineItem.tsx
@@ -45,7 +45,10 @@ import type { PropsData as VerificationNotificationProps } from './VerificationN
 import { VerificationNotification } from './VerificationNotification';
 import type { PropsData as GroupNotificationProps } from './GroupNotification';
 import { GroupNotification } from './GroupNotification';
-import type { PropsDataType as GroupV2ChangeProps } from './GroupV2Change';
+import type {
+  PropsDataType as GroupV2ChangeProps,
+  PropsActionsType as GroupV2ChangeActionsType,
+} from './GroupV2Change';
 import { GroupV2Change } from './GroupV2Change';
 import type { PropsDataType as GroupV1MigrationProps } from './GroupV1Migration';
 import { GroupV1Migration } from './GroupV1Migration';
@@ -161,6 +164,7 @@ type PropsLocalType = {
 type PropsActionsType = MessageActionsType &
   CallingNotificationActionsType &
   DeliveryIssueActionProps &
+  GroupV2ChangeActionsType &
   PropsChatSessionRefreshedActionsType &
   UnsupportedMessageActionsType &
   SafetyNumberActionsType;
@@ -190,7 +194,6 @@ export class TimelineItem extends React.PureComponent<PropsType> {
       theme,
       nextItem,
       previousItem,
-      renderContact,
       renderUniversalTimerNotification,
       returnToActiveCall,
       selectMessage,
@@ -294,11 +297,7 @@ export class TimelineItem extends React.PureComponent<PropsType> {
         );
       } else if (item.type === 'groupV2Change') {
         notification = (
-          <GroupV2Change
-            renderContact={renderContact}
-            {...item.data}
-            i18n={i18n}
-          />
+          <GroupV2Change {...this.props} {...item.data} i18n={i18n} />
         );
       } else if (item.type === 'groupV1Migration') {
         notification = (
diff --git a/ts/groupChange.ts b/ts/groupChange.ts
index bf8095a62..640b3087a 100644
--- a/ts/groupChange.ts
+++ b/ts/groupChange.ts
@@ -28,24 +28,44 @@ export type RenderOptionsType<T> = {
 const AccessControlEnum = Proto.AccessControl.AccessRequired;
 const RoleEnum = Proto.Member.Role;
 
+export type RenderChangeResultType<T> = ReadonlyArray<
+  Readonly<{
+    detail: GroupV2ChangeDetailType;
+    text: T | string;
+
+    // Used to differentiate between the multiple texts produced by
+    // 'admin-approval-bounce'
+    isLastText: boolean;
+  }>
+>;
+
 export function renderChange<T>(
   change: GroupV2ChangeType,
   options: RenderOptionsType<T>
-): Array<T | string> {
+): RenderChangeResultType<T> {
   const { details, from } = change;
 
-  return details.map((detail: GroupV2ChangeDetailType) =>
-    renderChangeDetail<T>(detail, {
+  return details.flatMap((detail: GroupV2ChangeDetailType) => {
+    const texts = renderChangeDetail<T>(detail, {
       ...options,
       from,
-    })
-  );
+    });
+
+    if (!Array.isArray(texts)) {
+      return { detail, isLastText: true, text: texts };
+    }
+
+    return texts.map((text, index) => {
+      const isLastText = index === texts.length - 1;
+      return { detail, isLastText, text };
+    });
+  });
 }
 
 export function renderChangeDetail<T>(
   detail: GroupV2ChangeDetailType,
   options: RenderOptionsType<T>
-): T | string {
+): T | string | ReadonlyArray<T | string> {
   const { from, i18n, ourUuid, renderContact, renderString } = options;
   const fromYou = Boolean(from && ourUuid && from === ourUuid);
 
@@ -768,6 +788,38 @@ export function renderChangeDetail<T>(
       [renderContact(uuid)]
     );
   }
+  if (detail.type === 'admin-approval-bounce') {
+    const { uuid, times, isApprovalPending } = detail;
+
+    let firstMessage: T | string;
+    if (times === 1) {
+      firstMessage = renderString('GroupV2--admin-approval-bounce--one', i18n, {
+        joinerName: renderContact(uuid),
+      });
+    } else {
+      firstMessage = renderString('GroupV2--admin-approval-bounce', i18n, {
+        joinerName: renderContact(uuid),
+        numberOfRequests: String(times),
+      });
+    }
+
+    if (!isApprovalPending) {
+      return firstMessage;
+    }
+
+    const secondMessage = renderChangeDetail(
+      {
+        type: 'admin-approval-add-one',
+        uuid,
+      },
+      options
+    );
+
+    return [
+      firstMessage,
+      ...(Array.isArray(secondMessage) ? secondMessage : [secondMessage]),
+    ];
+  }
   if (detail.type === 'group-link-add') {
     const { privilege } = detail;
 
diff --git a/ts/groups.ts b/ts/groups.ts
index c8978565d..bb0144c55 100644
--- a/ts/groups.ts
+++ b/ts/groups.ts
@@ -186,6 +186,12 @@ type GroupV2AdminApprovalRemoveOneChangeType = {
   uuid: UUIDStringType;
   inviter?: UUIDStringType;
 };
+type GroupV2AdminApprovalBounceChangeType = {
+  type: 'admin-approval-bounce';
+  times: number;
+  isApprovalPending: boolean;
+  uuid: UUIDStringType;
+};
 export type GroupV2DescriptionChangeType = {
   type: 'description';
   removed?: boolean;
@@ -200,6 +206,7 @@ export type GroupV2ChangeDetailType =
   | GroupV2AccessMembersChangeType
   | GroupV2AdminApprovalAddOneChangeType
   | GroupV2AdminApprovalRemoveOneChangeType
+  | GroupV2AdminApprovalBounceChangeType
   | GroupV2AnnouncementsOnlyChangeType
   | GroupV2AvatarChangeType
   | GroupV2DescriptionChangeType
@@ -249,7 +256,7 @@ type MemberType = {
 };
 type UpdatesResultType = {
   // The array of new messages to be added into the message timeline
-  groupChangeMessages: Array<MessageAttributesType>;
+  groupChangeMessages: Array<GroupChangeMessageType>;
   // The set of members in the group, and we largely just pull profile keys for each,
   //   because the group membership is updated in newAttributes
   members: Array<MemberType>;
@@ -263,6 +270,33 @@ type UploadedAvatarType = {
   key: string;
 };
 
+type BasicMessageType = Pick<MessageAttributesType, 'id' | 'schemaVersion'>;
+
+type GroupV2ChangeMessageType = {
+  type: 'group-v2-change';
+} & Pick<MessageAttributesType, 'groupV2Change' | 'sourceUuid'>;
+
+type GroupV1MigrationMessageType = {
+  type: 'group-v1-migration';
+} & Pick<
+  MessageAttributesType,
+  'invitedGV2Members' | 'droppedGV2MemberIds' | 'groupMigration'
+>;
+
+type TimerNotificationMessageType = {
+  type: 'timer-notification';
+} & Pick<
+  MessageAttributesType,
+  'sourceUuid' | 'flags' | 'expirationTimerUpdate'
+>;
+
+type GroupChangeMessageType = BasicMessageType &
+  (
+    | GroupV2ChangeMessageType
+    | GroupV1MigrationMessageType
+    | TimerNotificationMessageType
+  );
+
 // Constants
 
 export const MASTER_KEY_LENGTH = 32;
@@ -277,6 +311,14 @@ const SUPPORTED_CHANGE_EPOCH = 4;
 export const LINK_VERSION_ERROR = 'LINK_VERSION_ERROR';
 const GROUP_INVITE_LINK_PASSWORD_LENGTH = 16;
 
+function generateBasicMessage(): BasicMessageType {
+  return {
+    id: getGuid(),
+    schemaVersion: MAX_MESSAGE_SCHEMA,
+    // this is missing most properties to fulfill this type
+  };
+}
+
 // Group Links
 
 export function generateGroupInviteLinkPassword(): Uint8Array {
@@ -1138,6 +1180,47 @@ export function buildDeleteMemberChange({
   return actions;
 }
 
+export function buildAddBannedMemberChange({
+  uuid,
+  group,
+}: {
+  uuid: UUIDStringType;
+  group: ConversationAttributesType;
+}): Proto.GroupChange.Actions {
+  const actions = new Proto.GroupChange.Actions();
+
+  if (!group.secretParams) {
+    throw new Error(
+      'buildAddBannedMemberChange: group was missing secretParams!'
+    );
+  }
+  const clientZkGroupCipher = getClientZkGroupCipher(group.secretParams);
+  const uuidCipherTextBuffer = encryptUuid(clientZkGroupCipher, uuid);
+
+  const addMemberBannedAction =
+    new Proto.GroupChange.Actions.AddMemberBannedAction();
+
+  addMemberBannedAction.added = new Proto.MemberBanned();
+  addMemberBannedAction.added.userId = uuidCipherTextBuffer;
+
+  actions.addMembersBanned = [addMemberBannedAction];
+
+  if (group.pendingAdminApprovalV2?.some(item => item.uuid === uuid)) {
+    const deleteMemberPendingAdminApprovalAction =
+      new Proto.GroupChange.Actions.DeleteMemberPendingAdminApprovalAction();
+
+    deleteMemberPendingAdminApprovalAction.deletedUserId = uuidCipherTextBuffer;
+
+    actions.deleteMemberPendingAdminApprovals = [
+      deleteMemberPendingAdminApprovalAction,
+    ];
+  }
+
+  actions.version = (group.revision || 0) + 1;
+
+  return actions;
+}
+
 export function buildModifyMemberRoleChange({
   uuid,
   group,
@@ -1692,13 +1775,14 @@ export async function createGroupV2({
     conversationId: conversation.id,
     received_at: window.Signal.Util.incrementMessageCounter(),
     received_at_ms: timestamp,
+    timestamp,
     sent_at: timestamp,
     groupV2Change: {
       from: ourUuid,
       details: [{ type: 'create' }],
     },
   };
-  await window.Signal.Data.saveMessages([createdTheGroupMessage], {
+  await dataInterface.saveMessages([createdTheGroupMessage], {
     forceSave: true,
     ourUuid,
   });
@@ -2127,7 +2211,7 @@ export async function initiateMigrationToGroupV2(
         throw error;
       }
 
-      const groupChangeMessages: Array<MessageAttributesType> = [];
+      const groupChangeMessages: Array<GroupChangeMessageType> = [];
       groupChangeMessages.push({
         ...generateBasicMessage(),
         type: 'group-v1-migration',
@@ -2210,7 +2294,7 @@ export async function waitThenRespondToGroupV2Migration(
 export function buildMigrationBubble(
   previousGroupV1MembersIds: Array<string>,
   newAttributes: ConversationAttributesType
-): MessageAttributesType {
+): GroupChangeMessageType {
   const ourUuid = window.storage.user.getCheckedUuid().toString();
   const ourConversationId =
     window.ConversationController.getOurConversationId();
@@ -2249,7 +2333,7 @@ export function buildMigrationBubble(
   };
 }
 
-export function getBasicMigrationBubble(): MessageAttributesType {
+export function getBasicMigrationBubble(): GroupChangeMessageType {
   return {
     ...generateBasicMessage(),
     type: 'group-v1-migration',
@@ -2322,7 +2406,7 @@ export async function joinGroupV2ViaLinkAndMigrate({
     derivedGroupV2Id: undefined,
     members: undefined,
   };
-  const groupChangeMessages: Array<MessageAttributesType> = [
+  const groupChangeMessages: Array<GroupChangeMessageType> = [
     {
       ...generateBasicMessage(),
       type: 'group-v1-migration',
@@ -2536,7 +2620,7 @@ export async function respondToGroupV2Migration({
   });
 
   // Generate notifications into the timeline
-  const groupChangeMessages: Array<MessageAttributesType> = [];
+  const groupChangeMessages: Array<GroupChangeMessageType> = [];
 
   groupChangeMessages.push(
     buildMigrationBubble(previousGroupV1MembersIds, newAttributes)
@@ -2749,6 +2833,7 @@ async function updateGroup(
 
   // Save all synthetic messages describing group changes
   let syntheticSentAt = initialSentAt - (groupChangeMessages.length + 1);
+  const timestamp = Date.now();
   const changeMessagesToSave = groupChangeMessages.map(changeMessage => {
     // We do this to preserve the order of the timeline. We only update sentAt to ensure
     //   that we don't stomp on messages received around the same time as the message
@@ -2761,6 +2846,7 @@ async function updateGroup(
       received_at: finalReceivedAt,
       received_at_ms: syntheticSentAt,
       sent_at: syntheticSentAt,
+      timestamp,
     };
   });
 
@@ -2801,15 +2887,7 @@ async function updateGroup(
   }
 
   if (changeMessagesToSave.length > 0) {
-    await window.Signal.Data.saveMessages(changeMessagesToSave, {
-      forceSave: true,
-      ourUuid: ourUuid.toString(),
-    });
-    changeMessagesToSave.forEach(changeMessage => {
-      const model = new window.Whisper.Message(changeMessage);
-      window.MessageController.register(model.id, model);
-      conversation.trigger('newmessage', model);
-    });
+    await appendChangeMessages(conversation, changeMessagesToSave);
   }
 
   // We update group membership last to ensure that all notifications are in place before
@@ -2827,7 +2905,210 @@ async function updateGroup(
     conversation.trigger('idUpdated', conversation, 'groupId', previousId);
   }
 
-  // No need for convo.updateLastMessage(), 'newmessage' handler does that
+  // Save these most recent updates to conversation
+  await updateConversation(conversation.attributes);
+}
+
+// Exported for testing
+export function _mergeGroupChangeMessages(
+  first: MessageAttributesType | undefined,
+  second: MessageAttributesType
+): MessageAttributesType | undefined {
+  if (!first) {
+    return undefined;
+  }
+
+  if (first.type !== 'group-v2-change' || second.type !== first.type) {
+    return undefined;
+  }
+
+  const { groupV2Change: firstChange } = first;
+  const { groupV2Change: secondChange } = second;
+  if (!firstChange || !secondChange) {
+    return undefined;
+  }
+
+  if (firstChange.details.length !== 1 && secondChange.details.length !== 1) {
+    return undefined;
+  }
+
+  const [firstDetail] = firstChange.details;
+  const [secondDetail] = secondChange.details;
+  let isApprovalPending: boolean;
+  if (secondDetail.type === 'admin-approval-add-one') {
+    isApprovalPending = true;
+  } else if (secondDetail.type === 'admin-approval-remove-one') {
+    isApprovalPending = false;
+  } else {
+    return undefined;
+  }
+
+  const { uuid } = secondDetail;
+  strictAssert(uuid, 'admin approval message should have uuid');
+
+  let updatedDetail;
+  // Member was previously added and is now removed
+  if (
+    !isApprovalPending &&
+    firstDetail.type === 'admin-approval-add-one' &&
+    firstDetail.uuid === uuid
+  ) {
+    updatedDetail = {
+      type: 'admin-approval-bounce' as const,
+      uuid,
+      times: 1,
+      isApprovalPending,
+    };
+
+    // There is an existing bounce event - merge this one into it.
+  } else if (
+    firstDetail.type === 'admin-approval-bounce' &&
+    firstDetail.uuid === uuid &&
+    firstDetail.isApprovalPending === !isApprovalPending
+  ) {
+    updatedDetail = {
+      type: 'admin-approval-bounce' as const,
+      uuid,
+      times: firstDetail.times + (isApprovalPending ? 0 : 1),
+      isApprovalPending,
+    };
+  } else {
+    return undefined;
+  }
+
+  return {
+    ...first,
+    groupV2Change: {
+      ...first.groupV2Change,
+      details: [updatedDetail],
+    },
+  };
+}
+
+// Exported for testing
+export function _isGroupChangeMessageBounceable(
+  message: MessageAttributesType
+): boolean {
+  if (message.type !== 'group-v2-change') {
+    return false;
+  }
+
+  const { groupV2Change } = message;
+  if (!groupV2Change) {
+    return false;
+  }
+
+  if (groupV2Change.details.length !== 1) {
+    return false;
+  }
+
+  const [first] = groupV2Change.details;
+  if (
+    first.type === 'admin-approval-add-one' ||
+    first.type === 'admin-approval-bounce'
+  ) {
+    return true;
+  }
+
+  return false;
+}
+
+async function appendChangeMessages(
+  conversation: ConversationModel,
+  messages: ReadonlyArray<MessageAttributesType>
+): Promise<void> {
+  const logId = conversation.idForLogging();
+
+  log.info(
+    `appendChangeMessages/${logId}: processing ${messages.length} messages`
+  );
+
+  const ourUuid = window.textsecure.storage.user.getCheckedUuid();
+
+  let lastMessage = await dataInterface.getLastConversationMessage({
+    conversationId: conversation.id,
+  });
+
+  if (lastMessage && !_isGroupChangeMessageBounceable(lastMessage)) {
+    lastMessage = undefined;
+  }
+
+  const mergedMessages = [];
+  let previousMessage = lastMessage;
+  for (const message of messages) {
+    const merged = _mergeGroupChangeMessages(previousMessage, message);
+    if (!merged) {
+      if (previousMessage && previousMessage !== lastMessage) {
+        mergedMessages.push(previousMessage);
+      }
+      previousMessage = message;
+      continue;
+    }
+
+    previousMessage = merged;
+    log.info(
+      `appendChangeMessages/${logId}: merged ${message.id} into ${merged.id}`
+    );
+  }
+
+  if (previousMessage && previousMessage !== lastMessage) {
+    mergedMessages.push(previousMessage);
+  }
+
+  // Update existing message
+  if (lastMessage && mergedMessages[0]?.id === lastMessage?.id) {
+    const [first, ...rest] = mergedMessages;
+    strictAssert(first !== undefined, 'First message must be there');
+
+    log.info(`appendChangeMessages/${logId}: updating ${first.id}`);
+    await dataInterface.saveMessage(first, {
+      ourUuid: ourUuid.toString(),
+
+      // We don't use forceSave here because this is an update of existing
+      // message.
+    });
+
+    log.info(
+      `appendChangeMessages/${logId}: saving ${rest.length} new messages`
+    );
+    await dataInterface.saveMessages(rest, {
+      ourUuid: ourUuid.toString(),
+      forceSave: true,
+    });
+  } else {
+    log.info(
+      `appendChangeMessages/${logId}: saving ${mergedMessages.length} new messages`
+    );
+    await dataInterface.saveMessages(mergedMessages, {
+      ourUuid: ourUuid.toString(),
+      forceSave: true,
+    });
+  }
+
+  let newMessages = 0;
+  for (const changeMessage of mergedMessages) {
+    const existing = window.MessageController.getById(changeMessage.id);
+
+    // Update existing message
+    if (existing) {
+      strictAssert(
+        changeMessage.id === lastMessage?.id,
+        'Should only update group change that was already in the database'
+      );
+      existing.set(changeMessage);
+      continue;
+    }
+
+    const model = new window.Whisper.Message(changeMessage);
+    window.MessageController.register(model.id, model);
+    conversation.trigger('newmessage', model);
+    newMessages += 1;
+  }
+
+  // We updated the message, but didn't add new ones - refresh left pane
+  if (!newMessages && mergedMessages.length > 0) {
+    await conversation.updateLastMessage();
+  }
 }
 
 type GetGroupUpdatesType = Readonly<{
@@ -2915,7 +3196,10 @@ async function getGroupUpdates({
     );
   }
 
-  if (isNumber(newRevision) && window.GV2_ENABLE_CHANGE_PROCESSING) {
+  if (
+    (!isFirstFetch || isNumber(newRevision)) &&
+    window.GV2_ENABLE_CHANGE_PROCESSING
+  ) {
     try {
       const result = await updateGroupViaLogs({
         group,
@@ -3063,7 +3347,7 @@ async function updateGroupViaLogs({
   newRevision,
 }: {
   group: ConversationAttributesType;
-  newRevision: number;
+  newRevision: number | undefined;
   serverPublicParamsBase64: string;
 }): Promise<UpdatesResultType> {
   const logId = idForLogging(group.groupId);
@@ -3081,7 +3365,9 @@ async function updateGroupViaLogs({
   };
   try {
     log.info(
-      `updateGroupViaLogs/${logId}: Getting group delta from ${group.revision} to ${newRevision} for group groupv2(${group.groupId})...`
+      `updateGroupViaLogs/${logId}: Getting group delta from ` +
+        `${group.revision ?? '?'} to ${newRevision ?? '?'} for group ` +
+        `groupv2(${group.groupId})...`
     );
     const result = await getGroupDelta(deltaOptions);
 
@@ -3101,14 +3387,6 @@ async function updateGroupViaLogs({
   }
 }
 
-function generateBasicMessage() {
-  return {
-    id: getGuid(),
-    schemaVersion: MAX_MESSAGE_SCHEMA,
-    // this is missing most properties to fulfill this type
-  } as MessageAttributesType;
-}
-
 async function generateLeftGroupChanges(
   group: ConversationAttributesType
 ): Promise<UpdatesResultType> {
@@ -3148,7 +3426,7 @@ async function generateLeftGroupChanges(
   const isNewlyRemoved =
     existingMembers.length > (newAttributes.membersV2 || []).length;
 
-  const youWereRemovedMessage: MessageAttributesType = {
+  const youWereRemovedMessage: GroupChangeMessageType = {
     ...generateBasicMessage(),
     type: 'group-v2-change',
     groupV2Change: {
@@ -3202,7 +3480,7 @@ async function getGroupDelta({
   authCredentialBase64,
 }: {
   group: ConversationAttributesType;
-  newRevision: number;
+  newRevision: number | undefined;
   serverPublicParamsBase64: string;
   authCredentialBase64: string;
 }): Promise<UpdatesResultType> {
@@ -3225,6 +3503,7 @@ async function getGroupDelta({
   });
 
   const currentRevision = group.revision;
+  let latestRevision = newRevision;
   const isFirstFetch = !isNumber(currentRevision);
   let revisionToFetch = isNumber(currentRevision)
     ? currentRevision + 1
@@ -3247,14 +3526,22 @@ async function getGroupDelta({
     if (response.end) {
       revisionToFetch = response.end + 1;
     }
-  } while (response.end && response.end < newRevision);
+
+    if (latestRevision === undefined) {
+      latestRevision = response.currentRevision ?? response.end;
+    }
+  } while (
+    response.end &&
+    latestRevision !== undefined &&
+    response.end < latestRevision
+  );
 
   // Would be nice to cache the unused groupChanges here, to reduce server roundtrips
 
   return integrateGroupChanges({
     changes,
     group,
-    newRevision,
+    newRevision: latestRevision,
   });
 }
 
@@ -3264,12 +3551,12 @@ async function integrateGroupChanges({
   changes,
 }: {
   group: ConversationAttributesType;
-  newRevision: number;
+  newRevision: number | undefined;
   changes: Array<Proto.IGroupChanges>;
 }): Promise<UpdatesResultType> {
   const logId = idForLogging(group.groupId);
   let attributes = group;
-  const finalMessages: Array<Array<MessageAttributesType>> = [];
+  const finalMessages: Array<Array<GroupChangeMessageType>> = [];
   const finalMembers: Array<Array<MemberType>> = [];
 
   const imax = changes.length;
@@ -3361,7 +3648,7 @@ async function integrateGroupChange({
   group: ConversationAttributesType;
   groupChange?: Proto.IGroupChange;
   groupState?: Proto.IGroup;
-  newRevision: number;
+  newRevision: number | undefined;
 }): Promise<UpdatesResultType> {
   const logId = idForLogging(group.groupId);
   if (!group.secretParams) {
@@ -3396,6 +3683,7 @@ async function integrateGroupChange({
 
     if (
       groupChangeActions.version &&
+      newRevision !== undefined &&
       groupChangeActions.version > newRevision
     ) {
       return {
@@ -3571,7 +3859,7 @@ function extractDiffs({
   dropInitialJoinMessage?: boolean;
   old: ConversationAttributesType;
   sourceUuid?: UUIDStringType;
-}): Array<MessageAttributesType> {
+}): Array<GroupChangeMessageType> {
   const logId = idForLogging(old.groupId);
   const details: Array<GroupV2ChangeDetailType> = [];
   const ourUuid = window.storage.user.getCheckedUuid().toString();
@@ -3870,8 +4158,8 @@ function extractDiffs({
 
   // final processing
 
-  let message: MessageAttributesType | undefined;
-  let timerNotification: MessageAttributesType | undefined;
+  let message: GroupChangeMessageType | undefined;
+  let timerNotification: GroupChangeMessageType | undefined;
 
   const firstUpdate = !isNumber(old.revision);
 
diff --git a/ts/models/conversations.ts b/ts/models/conversations.ts
index 2247e185c..c573cd055 100644
--- a/ts/models/conversations.ts
+++ b/ts/models/conversations.ts
@@ -421,7 +421,21 @@ export class ConversationModel extends window.Backbone
     }
 
     const uuid = UUID.checkedLookup(id).toString();
-    return window._.any(pendingMembersV2, item => item.uuid === uuid);
+    return pendingMembersV2.some(item => item.uuid === uuid);
+  }
+
+  isMemberBanned(id: string): boolean {
+    if (!isGroupV2(this.attributes)) {
+      return false;
+    }
+    const bannedMembersV2 = this.get('bannedMembersV2');
+
+    if (!bannedMembersV2 || !bannedMembersV2.length) {
+      return false;
+    }
+
+    const uuid = UUID.checkedLookup(id).toString();
+    return bannedMembersV2.some(item => item === uuid);
   }
 
   isMemberAwaitingApproval(id: string): boolean {
@@ -1865,6 +1879,7 @@ export class ConversationModel extends window.Backbone
       messageCount: this.get('messageCount') || 0,
       pendingMemberships: this.getPendingMemberships(),
       pendingApprovalMemberships: this.getPendingApprovalMemberships(),
+      bannedMemberships: this.getBannedMemberships(),
       profileKey: this.get('profileKey'),
       messageRequestsEnabled,
       accessControlAddFromInviteLink:
@@ -2337,6 +2352,40 @@ export class ConversationModel extends window.Backbone
     }
   }
 
+  async addBannedMember(
+    uuid: UUIDStringType
+  ): Promise<Proto.GroupChange.Actions | undefined> {
+    if (this.isMember(uuid)) {
+      log.warn('addBannedMember: Member is a part of the group!');
+
+      return;
+    }
+
+    if (this.isMemberPending(uuid)) {
+      log.warn('addBannedMember: Member is pending to be added to group!');
+
+      return;
+    }
+
+    if (this.isMemberBanned(uuid)) {
+      log.warn('addBannedMember: Member is already banned!');
+
+      return;
+    }
+
+    return window.Signal.Groups.buildAddBannedMemberChange({
+      group: this.attributes,
+      uuid,
+    });
+  }
+
+  async blockGroupLinkRequests(uuid: UUIDStringType): Promise<void> {
+    await this.modifyGroupV2({
+      name: 'addBannedMember',
+      createGroupChange: async () => this.addBannedMember(uuid),
+    });
+  }
+
   async toggleAdmin(conversationId: string): Promise<void> {
     if (!isGroupV2(this.attributes)) {
       return;
@@ -3495,6 +3544,14 @@ export class ConversationModel extends window.Backbone
     }));
   }
 
+  private getBannedMemberships(): Array<UUIDStringType> {
+    if (!isGroupV2(this.attributes)) {
+      return [];
+    }
+
+    return this.get('bannedMembersV2') || [];
+  }
+
   getMembers(
     options: { includePendingMembers?: boolean } = {}
   ): Array<ConversationModel> {
@@ -4069,17 +4126,17 @@ export class ConversationModel extends window.Backbone
     const conversationId = this.id;
 
     const ourUuid = window.textsecure.storage.user.getCheckedUuid().toString();
-    const lastMessages = await window.Signal.Data.getLastConversationMessages({
+    const stats = await window.Signal.Data.getConversationMessageStats({
       conversationId,
       ourUuid,
     });
 
     // This runs as a job to avoid race conditions
     this.queueJob('maybeSetPendingUniversalTimer', async () =>
-      this.maybeSetPendingUniversalTimer(lastMessages.hasUserInitiatedMessages)
+      this.maybeSetPendingUniversalTimer(stats.hasUserInitiatedMessages)
     );
 
-    const { preview, activity } = lastMessages;
+    const { preview, activity } = stats;
     let previewMessage: MessageModel | undefined;
     let activityMessage: MessageModel | undefined;
 
diff --git a/ts/models/messages.ts b/ts/models/messages.ts
index 53ca4a1b9..edc23194c 100644
--- a/ts/models/messages.ts
+++ b/ts/models/messages.ts
@@ -51,6 +51,7 @@ import { isImage, isVideo } from '../types/Attachment';
 import * as Attachment from '../types/Attachment';
 import { stringToMIMEType } from '../types/MIME';
 import * as MIME from '../types/MIME';
+import * as GroupChange from '../groupChange';
 import { ReadStatus } from '../messages/MessageReadStatus';
 import type { SendStateByConversationId } from '../messages/MessageSendState';
 import {
@@ -486,7 +487,7 @@ export class MessageModel extends window.Backbone.Model<MessageAttributesType> {
         'getNotificationData: isGroupV2Change true, but no groupV2Change!'
       );
 
-      const lines = window.Signal.GroupChange.renderChange<string>(change, {
+      const changes = GroupChange.renderChange<string>(change, {
         i18n: window.i18n,
         ourUuid: window.textsecure.storage.user.getCheckedUuid().toString(),
         renderContact: (conversationId: string) => {
@@ -503,7 +504,7 @@ export class MessageModel extends window.Backbone.Model<MessageAttributesType> {
         ) => window.i18n(key, components),
       });
 
-      return { text: lines.join(' ') };
+      return { text: changes.map(({ text }) => text).join(' ') };
     }
 
     const attachments = this.get('attachments') || [];
diff --git a/ts/sql/Client.ts b/ts/sql/Client.ts
index dfdb9820d..b1086a008 100644
--- a/ts/sql/Client.ts
+++ b/ts/sql/Client.ts
@@ -56,7 +56,7 @@ import type {
   IdentityKeyType,
   ItemKeyType,
   ItemType,
-  LastConversationMessagesType,
+  ConversationMessageStatsType,
   MessageType,
   MessageTypeUnhydrated,
   PreKeyIdType,
@@ -241,7 +241,8 @@ const dataInterface: ClientInterface = {
   getNewerMessagesByConversation,
   getMessageMetricsForConversation,
   getConversationRangeCenteredOnMessage,
-  getLastConversationMessages,
+  getConversationMessageStats,
+  getLastConversationMessage,
   hasGroupCallHistoryMessage,
   migrateConversationMessages,
 
@@ -1097,7 +1098,7 @@ async function saveMessage(
 }
 
 async function saveMessages(
-  arrayOfMessages: Array<MessageType>,
+  arrayOfMessages: ReadonlyArray<MessageType>,
   options: { forceSave?: boolean; ourUuid: UUIDStringType }
 ) {
   await channels.saveMessages(
@@ -1291,15 +1292,15 @@ async function getNewerMessagesByConversation(
 
   return handleMessageJSON(messages);
 }
-async function getLastConversationMessages({
+async function getConversationMessageStats({
   conversationId,
   ourUuid,
 }: {
   conversationId: string;
   ourUuid: UUIDStringType;
-}): Promise<LastConversationMessagesType> {
+}): Promise<ConversationMessageStatsType> {
   const { preview, activity, hasUserInitiatedMessages } =
-    await channels.getLastConversationMessages({
+    await channels.getConversationMessageStats({
       conversationId,
       ourUuid,
     });
@@ -1310,6 +1311,13 @@ async function getLastConversationMessages({
     hasUserInitiatedMessages,
   };
 }
+async function getLastConversationMessage({
+  conversationId,
+}: {
+  conversationId: string;
+}) {
+  return channels.getLastConversationMessage({ conversationId });
+}
 async function getMessageMetricsForConversation(
   conversationId: string,
   storyId?: UUIDStringType
diff --git a/ts/sql/Interface.ts b/ts/sql/Interface.ts
index 9e52ad2da..f5edcc29e 100644
--- a/ts/sql/Interface.ts
+++ b/ts/sql/Interface.ts
@@ -218,7 +218,7 @@ export type UnprocessedUpdateType = {
   decrypted?: string;
 };
 
-export type LastConversationMessagesType = {
+export type ConversationMessageStatsType = {
   activity?: MessageType;
   preview?: MessageType;
   hasUserInitiatedMessages: boolean;
@@ -379,7 +379,7 @@ export type DataInterface = {
     }
   ) => Promise<string>;
   saveMessages: (
-    arrayOfMessages: Array<MessageType>,
+    arrayOfMessages: ReadonlyArray<MessageType>,
     options: { forceSave?: boolean; ourUuid: UUIDStringType }
   ) => Promise<void>;
   removeMessage: (id: string) => Promise<void>;
@@ -453,10 +453,13 @@ export type DataInterface = {
     storyId?: UUIDStringType
   ) => Promise<ConversationMetricsType>;
   // getConversationRangeCenteredOnMessage is JSON on server, full message on client
-  getLastConversationMessages: (options: {
+  getConversationMessageStats: (options: {
     conversationId: string;
     ourUuid: UUIDStringType;
-  }) => Promise<LastConversationMessagesType>;
+  }) => Promise<ConversationMessageStatsType>;
+  getLastConversationMessage(options: {
+    conversationId: string;
+  }): Promise<MessageType | undefined>;
   hasGroupCallHistoryMessage: (
     conversationId: string,
     eraId: string
diff --git a/ts/sql/Server.ts b/ts/sql/Server.ts
index fab24c65a..a85148eb8 100644
--- a/ts/sql/Server.ts
+++ b/ts/sql/Server.ts
@@ -80,7 +80,7 @@ import type {
   IdentityKeyType,
   ItemKeyType,
   ItemType,
-  LastConversationMessagesType,
+  ConversationMessageStatsType,
   MessageMetricsType,
   MessageType,
   MessageTypeUnhydrated,
@@ -237,7 +237,8 @@ const dataInterface: ServerInterface = {
   getTotalUnreadForConversation,
   getMessageMetricsForConversation,
   getConversationRangeCenteredOnMessage,
-  getLastConversationMessages,
+  getConversationMessageStats,
+  getLastConversationMessage,
   hasGroupCallHistoryMessage,
   migrateConversationMessages,
 
@@ -1912,7 +1913,7 @@ async function saveMessage(
 }
 
 async function saveMessages(
-  arrayOfMessages: Array<MessageType>,
+  arrayOfMessages: ReadonlyArray<MessageType>,
   options: { forceSave?: boolean; ourUuid: UUIDStringType }
 ): Promise<void> {
   const db = getInstance();
@@ -2591,13 +2592,13 @@ function getLastConversationPreview({
   return jsonToObject(row.json);
 }
 
-async function getLastConversationMessages({
+async function getConversationMessageStats({
   conversationId,
   ourUuid,
 }: {
   conversationId: string;
   ourUuid: UUIDStringType;
-}): Promise<LastConversationMessagesType> {
+}): Promise<ConversationMessageStatsType> {
   const db = getInstance();
 
   return db.transaction(() => {
@@ -2612,6 +2613,32 @@ async function getLastConversationMessages({
   })();
 }
 
+async function getLastConversationMessage({
+  conversationId,
+}: {
+  conversationId: string;
+}): Promise<MessageType | undefined> {
+  const db = getInstance();
+  const row = db
+    .prepare<Query>(
+      `
+      SELECT * FROM messages WHERE
+        conversationId = $conversationId
+      ORDER BY received_at DESC, sent_at DESC
+      LIMIT 1;
+      `
+    )
+    .get({
+      conversationId,
+    });
+
+  if (!row) {
+    return undefined;
+  }
+
+  return jsonToObject(row.json);
+}
+
 function getOldestUnreadMessageForConversation(
   conversationId: string,
   storyId?: UUIDStringType
diff --git a/ts/state/ducks/conversations.ts b/ts/state/ducks/conversations.ts
index 50833c753..f7073f745 100644
--- a/ts/state/ducks/conversations.ts
+++ b/ts/state/ducks/conversations.ts
@@ -171,6 +171,7 @@ export type ConversationType = {
   pendingApprovalMemberships?: Array<{
     uuid: UUIDStringType;
   }>;
+  bannedMemberships?: Array<UUIDStringType>;
   muteExpiresAt?: number;
   dontNotifyForMentionsIfMuted?: boolean;
   type: ConversationTypeType;
diff --git a/ts/state/selectors/message.ts b/ts/state/selectors/message.ts
index e8c9ec93b..77eadd269 100644
--- a/ts/state/selectors/message.ts
+++ b/ts/state/selectors/message.ts
@@ -858,7 +858,10 @@ function getPropsForGroupV2Change(
   const conversation = getConversation(message, conversationSelector);
 
   return {
+    areWeAdmin: Boolean(conversation.areWeAdmin),
     groupName: conversation?.type === 'group' ? conversation?.name : undefined,
+    groupMemberships: conversation.memberships,
+    groupBannedMemberships: conversation.bannedMemberships,
     ourUuid,
     change,
   };
diff --git a/ts/state/smart/Timeline.tsx b/ts/state/smart/Timeline.tsx
index 914591dd0..3a773e594 100644
--- a/ts/state/smart/Timeline.tsx
+++ b/ts/state/smart/Timeline.tsx
@@ -61,6 +61,7 @@ export type TimelinePropsType = ExternalProps &
     ComponentPropsType,
     | 'acknowledgeGroupMemberNameCollisions'
     | 'contactSupport'
+    | 'blockGroupLinkRequests'
     | 'deleteMessage'
     | 'deleteMessageForEveryone'
     | 'displayTapToViewMessage'
diff --git a/ts/test-both/groups/message_merge_test.ts b/ts/test-both/groups/message_merge_test.ts
new file mode 100644
index 000000000..0b29b5c6b
--- /dev/null
+++ b/ts/test-both/groups/message_merge_test.ts
@@ -0,0 +1,217 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { UUID } from '../../types/UUID';
+import {
+  _isGroupChangeMessageBounceable,
+  _mergeGroupChangeMessages,
+} from '../../groups';
+
+describe('group message merging', () => {
+  const defaultMessage = {
+    id: UUID.generate().toString(),
+    conversationId: UUID.generate().toString(),
+    timestamp: Date.now(),
+    sent_at: Date.now(),
+    received_at: Date.now(),
+  };
+  const uuid = UUID.generate().toString();
+
+  describe('_isGroupChangeMessageBounceable', () => {
+    it('should return true for admin approval add', () => {
+      assert.isTrue(
+        _isGroupChangeMessageBounceable({
+          ...defaultMessage,
+          type: 'group-v2-change',
+          groupV2Change: {
+            details: [
+              {
+                type: 'admin-approval-add-one',
+                uuid,
+              },
+            ],
+          },
+        })
+      );
+    });
+
+    it('should return true for bounce message', () => {
+      assert.isTrue(
+        _isGroupChangeMessageBounceable({
+          ...defaultMessage,
+          type: 'group-v2-change',
+          groupV2Change: {
+            details: [
+              {
+                type: 'admin-approval-bounce',
+                times: 1,
+                isApprovalPending: true,
+                uuid,
+              },
+            ],
+          },
+        })
+      );
+    });
+
+    it('should return false otherwise', () => {
+      assert.isFalse(
+        _isGroupChangeMessageBounceable({
+          ...defaultMessage,
+          type: 'group-v2-change',
+          groupV2Change: {
+            details: [
+              {
+                type: 'admin-approval-remove-one',
+                uuid,
+              },
+            ],
+          },
+        })
+      );
+    });
+  });
+
+  describe('_mergeGroupChangeMessages', () => {
+    const add = {
+      ...defaultMessage,
+      type: 'group-v2-change' as const,
+      groupV2Change: {
+        details: [
+          {
+            type: 'admin-approval-add-one' as const,
+            uuid,
+          },
+        ],
+      },
+    };
+    const remove = {
+      ...defaultMessage,
+      type: 'group-v2-change' as const,
+      groupV2Change: {
+        details: [
+          {
+            type: 'admin-approval-remove-one' as const,
+            uuid,
+          },
+        ],
+      },
+    };
+    const addOther = {
+      ...defaultMessage,
+      type: 'group-v2-change' as const,
+      groupV2Change: {
+        details: [
+          {
+            type: 'admin-approval-add-one' as const,
+            uuid: UUID.generate().toString(),
+          },
+        ],
+      },
+    };
+    const removeOther = {
+      ...defaultMessage,
+      type: 'group-v2-change' as const,
+      groupV2Change: {
+        details: [
+          {
+            type: 'admin-approval-remove-one' as const,
+            uuid: UUID.generate().toString(),
+          },
+        ],
+      },
+    };
+    const bounce = {
+      ...defaultMessage,
+      type: 'group-v2-change' as const,
+      groupV2Change: {
+        details: [
+          {
+            type: 'admin-approval-bounce' as const,
+            times: 1,
+            isApprovalPending: false,
+            uuid,
+          },
+        ],
+      },
+    };
+    const bounceAndAdd = {
+      ...defaultMessage,
+      type: 'group-v2-change' as const,
+      groupV2Change: {
+        details: [
+          {
+            type: 'admin-approval-bounce' as const,
+            times: 1,
+            isApprovalPending: true,
+            uuid,
+          },
+        ],
+      },
+    };
+
+    it('should merge add with remove if uuid matches', () => {
+      assert.deepStrictEqual(
+        _mergeGroupChangeMessages(add, remove)?.groupV2Change?.details,
+        [
+          {
+            isApprovalPending: false,
+            times: 1,
+            type: 'admin-approval-bounce',
+            uuid,
+          },
+        ]
+      );
+    });
+
+    it('should not merge add with remove if uuid does not match', () => {
+      assert.isUndefined(_mergeGroupChangeMessages(add, removeOther));
+    });
+
+    it('should merge bounce with add if uuid matches', () => {
+      assert.deepStrictEqual(
+        _mergeGroupChangeMessages(bounce, add)?.groupV2Change?.details,
+        [
+          {
+            isApprovalPending: true,
+            times: 1,
+            type: 'admin-approval-bounce',
+            uuid,
+          },
+        ]
+      );
+    });
+
+    it('should merge bounce and add with remove if uuid matches', () => {
+      assert.deepStrictEqual(
+        _mergeGroupChangeMessages(bounceAndAdd, remove)?.groupV2Change?.details,
+        [
+          {
+            isApprovalPending: false,
+            times: 2,
+            type: 'admin-approval-bounce',
+            uuid,
+          },
+        ]
+      );
+    });
+
+    it('should not merge bounce with add if uuid does not match', () => {
+      assert.isUndefined(_mergeGroupChangeMessages(bounce, addOther));
+    });
+
+    it('should not merge bounce and add with add', () => {
+      assert.isUndefined(_mergeGroupChangeMessages(bounceAndAdd, add));
+    });
+
+    it('should not merge bounce and add with remove if uuid does not match', () => {
+      assert.isUndefined(_mergeGroupChangeMessages(bounceAndAdd, removeOther));
+    });
+
+    it('should not merge bounce with remove', () => {
+      assert.isUndefined(_mergeGroupChangeMessages(bounce, remove));
+    });
+  });
+});
diff --git a/ts/test-electron/sql/conversationSummary_test.ts b/ts/test-electron/sql/conversationSummary_test.ts
index 9341066a7..50cb92fc3 100644
--- a/ts/test-electron/sql/conversationSummary_test.ts
+++ b/ts/test-electron/sql/conversationSummary_test.ts
@@ -13,7 +13,7 @@ const {
   removeAll,
   _getAllMessages,
   saveMessages,
-  getLastConversationMessages,
+  getConversationMessageStats,
 } = dataInterface;
 
 function getUuid(): UUIDStringType {
@@ -25,7 +25,7 @@ describe('sql/conversationSummary', () => {
     await removeAll();
   });
 
-  describe('getLastConversationMessages', () => {
+  describe('getConversationMessageStats', () => {
     it('returns the latest message in current conversation', async () => {
       assert.lengthOf(await _getAllMessages(), 0);
 
@@ -67,7 +67,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 3);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -176,7 +176,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 8);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -293,7 +293,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 9);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -341,7 +341,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 2);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -390,7 +390,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 2);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -432,7 +432,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 2);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -476,7 +476,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 2);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
@@ -535,7 +535,7 @@ describe('sql/conversationSummary', () => {
 
       assert.lengthOf(await _getAllMessages(), 2);
 
-      const messages = await getLastConversationMessages({
+      const messages = await getConversationMessageStats({
         conversationId,
         ourUuid,
       });
diff --git a/ts/views/conversation_view.ts b/ts/views/conversation_view.ts
index 567eb8ed4..1cc831d4b 100644
--- a/ts/views/conversation_view.ts
+++ b/ts/views/conversation_view.ts
@@ -114,6 +114,7 @@ import { viewSyncJobQueue } from '../jobs/viewSyncJobQueue';
 import { viewedReceiptsJobQueue } from '../jobs/viewedReceiptsJobQueue';
 import { RecordingState } from '../state/ducks/audioRecorder';
 import { UUIDKind } from '../types/UUID';
+import type { UUIDStringType } from '../types/UUID';
 import { retryDeleteForEveryone } from '../util/retryDeleteForEveryone';
 
 type AttachmentOptions = {
@@ -513,6 +514,9 @@ export class ConversationView extends window.Backbone.View<ConversationModel> {
       ): void => {
         this.model.acknowledgeGroupMemberNameCollisions(groupNameCollisions);
       },
+      blockGroupLinkRequests: (uuid: UUIDStringType) => {
+        this.model.blockGroupLinkRequests(uuid);
+      },
       contactSupport,
       learnMoreAboutDeliveryIssue,
       loadNewerMessages: this.model.loadNewerMessages.bind(this.model),
diff --git a/ts/window.d.ts b/ts/window.d.ts
index 481f86857..bf75f40ed 100644
--- a/ts/window.d.ts
+++ b/ts/window.d.ts
@@ -112,7 +112,6 @@ import { IPCEventsType, IPCEventsValuesType } from './util/createIPCEvents';
 import { ConversationView } from './views/conversation_view';
 import type { SignalContextType } from './windows/context';
 import { GroupV2Change } from './components/conversation/GroupV2Change';
-import * as GroupChange from './groupChange';
 
 export { Long } from 'long';
 
@@ -389,7 +388,6 @@ declare global {
         QualifiedAddress: typeof QualifiedAddress;
       };
       Util: typeof Util;
-      GroupChange: typeof GroupChange;
       Components: {
         AttachmentList: typeof AttachmentList;
         ChatColorPicker: typeof ChatColorPicker;