diff --git a/app/assets/javascripts/helpers/init_simple_app_helper.js b/app/assets/javascripts/helpers/init_simple_app_helper.js
index 695fc455f13..f7bef8c563e 100644
--- a/app/assets/javascripts/helpers/init_simple_app_helper.js
+++ b/app/assets/javascripts/helpers/init_simple_app_helper.js
@@ -1,4 +1,26 @@
 import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import createDefaultClient from '~/lib/graphql';
+
+/**
+ * @param {boolean|VueApollo} apolloProviderOption
+ * @returns {undefined | VueApollo}
+ */
+const getApolloProvider = (apolloProviderOption) => {
+  if (apolloProviderOption === true) {
+    Vue.use(VueApollo);
+
+    return new VueApollo({
+      defaultClient: createDefaultClient(),
+    });
+  }
+
+  if (apolloProviderOption instanceof VueApollo) {
+    return apolloProviderOption;
+  }
+
+  return undefined;
+};
 
 /**
  * Initializes a component as a simple vue app, passing the necessary props. If the element
@@ -8,6 +30,8 @@ import Vue from 'vue';
  *
  * @param {string} selector css selector for where to build
  * @param {Vue.component} component The Vue compoment to be built as the root of the app
+ * @param {{withApolloProvider: boolean|VueApollo}} options. extra options to be passed to the vue app
+ *      withApolloProvider: if true, instantiates a default apolloProvider. Also accepts and instance of VueApollo
  *
  * @example
  * ```html
@@ -15,13 +39,13 @@ import Vue from 'vue';
  * ```
  *
  * ```javascript
- * initSimpleApp('#mount-here', MyApp)
+ * initSimpleApp('#mount-here', MyApp, { withApolloProvider: true })
  * ```
  *
  * This will mount MyApp as root on '#mount-here'. It will receive {'some': 'object'} as it's
  * view model prop.
  */
-export const initSimpleApp = (selector, component) => {
+export const initSimpleApp = (selector, component, { withApolloProvider } = {}) => {
   const element = document.querySelector(selector);
 
   if (!element) {
@@ -32,6 +56,7 @@ export const initSimpleApp = (selector, component) => {
 
   return new Vue({
     el: element,
+    apolloProvider: getApolloProvider(withApolloProvider),
     render(h) {
       return h(component, { props });
     },
diff --git a/app/assets/javascripts/members/components/avatars/group_avatar.vue b/app/assets/javascripts/members/components/avatars/group_avatar.vue
index 3b176bf2b43..83b5855492b 100644
--- a/app/assets/javascripts/members/components/avatars/group_avatar.vue
+++ b/app/assets/javascripts/members/components/avatars/group_avatar.vue
@@ -1,11 +1,18 @@
 <script>
-import { GlAvatarLink, GlAvatarLabeled } from '@gitlab/ui';
+import { GlAvatarLink, GlAvatarLabeled, GlTooltipDirective } from '@gitlab/ui';
+import { __ } from '~/locale';
+import PrivateIcon from '../icons/private_icon.vue';
 import { AVATAR_SIZE } from '../../constants';
 
 export default {
   name: 'GroupAvatar',
-  avatarSize: AVATAR_SIZE,
-  components: { GlAvatarLink, GlAvatarLabeled },
+  components: { GlAvatarLink, GlAvatarLabeled, PrivateIcon },
+  directives: {
+    GlTooltip: GlTooltipDirective,
+  },
+  i18n: {
+    private: __('Private'),
+  },
   props: {
     member: {
       type: Object,
@@ -16,19 +23,36 @@ export default {
     group() {
       return this.member.sharedWithGroup;
     },
+    isPrivate() {
+      return this.member.isSharedWithGroupPrivate;
+    },
+    avatarLabeledProps() {
+      const label = this.isPrivate ? this.$options.i18n.private : this.group.fullName;
+
+      return {
+        label,
+        src: this.group.avatarUrl,
+        alt: label,
+        size: AVATAR_SIZE,
+        entityName: this.isPrivate ? this.$options.i18n.private : this.group.name,
+        entityId: this.group.id,
+      };
+    },
   },
 };
 </script>
 
 <template>
-  <gl-avatar-link :href="group.webUrl">
-    <gl-avatar-labeled
-      :label="group.fullName"
-      :src="group.avatarUrl"
-      :alt="group.fullName"
-      :size="$options.avatarSize"
-      :entity-name="group.name"
-      :entity-id="group.id"
-    />
+  <div v-if="isPrivate">
+    <gl-avatar-labeled v-bind="avatarLabeledProps">
+      <template #meta>
+        <div class="gl-p-1">
+          <private-icon />
+        </div>
+      </template>
+    </gl-avatar-labeled>
+  </div>
+  <gl-avatar-link v-else :href="group.webUrl">
+    <gl-avatar-labeled v-bind="avatarLabeledProps" />
   </gl-avatar-link>
 </template>
diff --git a/app/assets/javascripts/members/components/icons/private_icon.vue b/app/assets/javascripts/members/components/icons/private_icon.vue
new file mode 100644
index 00000000000..6168ea955f3
--- /dev/null
+++ b/app/assets/javascripts/members/components/icons/private_icon.vue
@@ -0,0 +1,19 @@
+<script>
+import { GlIcon, GlTooltipDirective } from '@gitlab/ui';
+import { s__ } from '~/locale';
+
+export default {
+  name: 'GroupAvatar',
+  components: { GlIcon },
+  directives: {
+    GlTooltip: GlTooltipDirective,
+  },
+  i18n: {
+    tooltip: s__('Members|Private group information is only accessible to its members.'),
+  },
+};
+</script>
+
+<template>
+  <gl-icon v-gl-tooltip="$options.i18n.tooltip" name="eye-slash" />
+</template>
diff --git a/app/assets/javascripts/members/components/table/member_source.vue b/app/assets/javascripts/members/components/table/member_source.vue
index ed1971d020b..f1a1c4cecaa 100644
--- a/app/assets/javascripts/members/components/table/member_source.vue
+++ b/app/assets/javascripts/members/components/table/member_source.vue
@@ -1,10 +1,12 @@
 <script>
 import { GlSprintf, GlTooltipDirective } from '@gitlab/ui';
 import { s__, __ } from '~/locale';
+import PrivateIcon from '../icons/private_icon.vue';
 
 export default {
   name: 'MemberSource',
   i18n: {
+    private: __('Private'),
     inherited: __('Inherited'),
     directMember: __('Direct member'),
     directMemberWithCreatedBy: s__('Members|Direct member by %{createdBy}'),
@@ -13,16 +15,24 @@ export default {
   directives: {
     GlTooltip: GlTooltipDirective,
   },
-  components: { GlSprintf },
+  components: { GlSprintf, PrivateIcon },
   props: {
     memberSource: {
       type: Object,
-      required: true,
+      required: false,
+      default() {
+        return {};
+      },
     },
     isDirectMember: {
       type: Boolean,
       required: true,
     },
+    isSharedWithGroupPrivate: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
     createdBy: {
       type: Object,
       required: false,
@@ -43,7 +53,11 @@ export default {
 </script>
 
 <template>
-  <span v-if="showCreatedBy">
+  <div v-if="isSharedWithGroupPrivate" class="gl-display-flex gl-column-gap-2">
+    <span>{{ $options.i18n.private }}</span>
+    <private-icon />
+  </div>
+  <span v-else-if="showCreatedBy">
     <gl-sprintf :message="messageWithCreatedBy">
       <template #group>
         <a v-gl-tooltip.hover="$options.i18n.inherited" :href="memberSource.webUrl">{{
diff --git a/app/assets/javascripts/members/components/table/members_table.vue b/app/assets/javascripts/members/components/table/members_table.vue
index 68f624e9a3d..2b3294c1c79 100644
--- a/app/assets/javascripts/members/components/table/members_table.vue
+++ b/app/assets/javascripts/members/components/table/members_table.vue
@@ -270,6 +270,7 @@ export default {
             :is-direct-member="isDirectMember"
             :member-source="member.source"
             :created-by="member.createdBy"
+            :is-shared-with-group-private="member.isSharedWithGroupPrivate"
           />
         </members-table-cell>
       </template>
diff --git a/app/assets/javascripts/pages/projects/ml/models/show/index.js b/app/assets/javascripts/pages/projects/ml/models/show/index.js
index 87ee5c851f6..c8e25e0f0e8 100644
--- a/app/assets/javascripts/pages/projects/ml/models/show/index.js
+++ b/app/assets/javascripts/pages/projects/ml/models/show/index.js
@@ -1,4 +1,4 @@
 import { initSimpleApp } from '~/helpers/init_simple_app_helper';
 import { ShowMlModel } from '~/ml/model_registry/apps';
 
-initSimpleApp('#js-mount-show-ml-model', ShowMlModel);
+initSimpleApp('#js-mount-show-ml-model', ShowMlModel, { withApolloProvider: true });
diff --git a/app/helpers/colors_helper.rb b/app/helpers/colors_helper.rb
index 3cd7263c39e..34b18b80be4 100644
--- a/app/helpers/colors_helper.rb
+++ b/app/helpers/colors_helper.rb
@@ -10,16 +10,4 @@ module ColorsHelper
 
     hex_color.length == 7 ? hex_color[1, 7].scan(/.{2}/).map(&:hex) : hex_color[1, 4].scan(/./).map { |v| (v * 2).hex }
   end
-
-  def rgb_array_to_hex_color(rgb_array)
-    raise ArgumentError, "invalid RGB array `#{rgb_array}`" unless rgb_array_valid?(rgb_array)
-
-    "##{rgb_array.map{ "%02x" % _1 }.join}"
-  end
-
-  private
-
-  def rgb_array_valid?(rgb_array)
-    rgb_array.is_a?(Array) && rgb_array.length == 3 && rgb_array.all?{ _1 >= 0 && _1 <= 255 }
-  end
 end
diff --git a/app/helpers/environment_helper.rb b/app/helpers/environment_helper.rb
index 6e9379a5926..fa47a12a72c 100644
--- a/app/helpers/environment_helper.rb
+++ b/app/helpers/environment_helper.rb
@@ -9,15 +9,6 @@ module EnvironmentHelper
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
-  def environment_link_for_build(project, build)
-    environment = environment_for_build(project, build)
-    if environment
-      link_to environment.name, project_environment_path(project, environment)
-    else
-      content_tag :span, build.expanded_environment_name
-    end
-  end
-
   def deployment_path(deployment)
     [deployment.project, deployment.deployable]
   end
@@ -30,45 +21,6 @@ module EnvironmentHelper
     link_to link_label, deployment_path(deployment)
   end
 
-  def last_deployment_link_for_environment_build(project, build)
-    environment = environment_for_build(project, build)
-    return unless environment
-
-    deployment_link(environment.last_deployment)
-  end
-
-  def render_deployment_status(deployment)
-    status = deployment.status
-
-    status_text =
-      case status
-      when 'created'
-        s_('Deployment|created')
-      when 'running'
-        s_('Deployment|running')
-      when 'success'
-        s_('Deployment|success')
-      when 'failed'
-        s_('Deployment|failed')
-      when 'canceled'
-        s_('Deployment|canceled')
-      when 'skipped'
-        s_('Deployment|skipped')
-      when 'blocked'
-        s_('Deployment|blocked')
-      end
-
-    ci_icon_utilities = "gl-display-inline-flex gl-align-items-center gl-line-height-0 gl-px-3 gl-py-2 gl-rounded-base"
-    klass = "ci-status ci-#{status.dasherize} #{ci_icon_utilities}"
-    text = "#{ci_icon_for_status(status)} <span class=\"gl-ml-2\">#{status_text}</span>".html_safe
-
-    if deployment.deployable.instance_of?(::Ci::Build)
-      link_to(text, deployment_path(deployment), class: klass)
-    else
-      content_tag(:span, text, class: klass)
-    end
-  end
-
   def environments_detail_data(user, project, environment)
     {
       name: environment.name,
diff --git a/app/helpers/environments_helper.rb b/app/helpers/environments_helper.rb
index 80a56493653..6d48dac5c6d 100644
--- a/app/helpers/environments_helper.rb
+++ b/app/helpers/environments_helper.rb
@@ -33,15 +33,6 @@ module EnvironmentsHelper
     metrics_data
   end
 
-  def environment_logs_data(project, environment)
-    {
-      "environment_name": environment.name,
-      "environments_path": api_v4_projects_environments_path(id: project.id),
-      "environment_id": environment.id,
-      "clusters_path": project_clusters_path(project, format: :json)
-    }
-  end
-
   def can_destroy_environment?(environment)
     can?(current_user, :destroy_environment, environment)
   end
diff --git a/app/helpers/graph_helper.rb b/app/helpers/graph_helper.rb
index ab72442857b..e74005cf77b 100644
--- a/app/helpers/graph_helper.rb
+++ b/app/helpers/graph_helper.rb
@@ -18,13 +18,6 @@ module GraphHelper
     ids.zip(parent_spaces)
   end
 
-  def success_ratio(counts)
-    return 100 if counts[:failed] == 0
-
-    ratio = (counts[:success].to_f / (counts[:success] + counts[:failed])) * 100
-    ratio.to_i
-  end
-
   def should_render_dora_charts
     false
   end
diff --git a/app/helpers/members_helper.rb b/app/helpers/members_helper.rb
index e4c1d7932aa..600e5f06c61 100644
--- a/app/helpers/members_helper.rb
+++ b/app/helpers/members_helper.rb
@@ -30,22 +30,11 @@ module MembersHelper
     "#{text} #{action} the #{member.source.human_name} #{source_text(member)}?"
   end
 
-  def remove_member_title(member)
-    action = member.request? ? 'Deny access request' : 'Remove user'
-
-    "#{action} from #{source_text(member)}"
-  end
-
   def leave_confirmation_message(member_source)
     "Are you sure you want to leave the " \
     "\"#{member_source.human_name}\" #{member_source.model_name.to_s.humanize(capitalize: false)}?"
   end
 
-  def filter_group_project_member_path(options = {})
-    options = params.slice(:search, :sort).merge(options).permit!
-    "#{request.path}?#{options.to_param}"
-  end
-
   def member_path(member)
     if member.is_a?(GroupMember)
       group_group_member_path(member.source, member)
diff --git a/app/helpers/nav_helper.rb b/app/helpers/nav_helper.rb
index 4d0d44b3318..21c81eefce2 100644
--- a/app/helpers/nav_helper.rb
+++ b/app/helpers/nav_helper.rb
@@ -57,10 +57,6 @@ module NavHelper
     end
   end
 
-  def nav_control_class
-    "nav-control" if current_user
-  end
-
   def user_dropdown_class
     class_names = []
     class_names << 'header-user-dropdown-toggle'
@@ -82,10 +78,6 @@ module NavHelper
     %w[system_info background_migrations background_jobs health_check]
   end
 
-  def admin_analytics_nav_links
-    %w[dev_ops_report usage_trends]
-  end
-
   def show_super_sidebar?(user = current_user)
     # The new sidebar is not enabled for anonymous use
     # Once we enable the new sidebar by default, this
diff --git a/app/policies/group_group_link_policy.rb b/app/policies/group_group_link_policy.rb
new file mode 100644
index 00000000000..0108f0b7fca
--- /dev/null
+++ b/app/policies/group_group_link_policy.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+class GroupGroupLinkPolicy < ::BasePolicy # rubocop:disable Gitlab/NamespacedClass
+  condition(:can_read_shared_with_group) { can?(:read_group, @subject.shared_with_group) }
+  condition(:group_member) { @subject.shared_group.member?(@user) }
+
+  rule { can_read_shared_with_group | group_member }.enable :read_shared_with_group
+end
diff --git a/app/policies/project_group_link_policy.rb b/app/policies/project_group_link_policy.rb
index 00bb246d70b..7ad2985ecc5 100644
--- a/app/policies/project_group_link_policy.rb
+++ b/app/policies/project_group_link_policy.rb
@@ -2,9 +2,13 @@
 
 class ProjectGroupLinkPolicy < BasePolicy # rubocop:disable Gitlab/NamespacedClass
   condition(:group_owner_or_project_admin) { group_owner? || project_admin? }
+  condition(:can_read_group) { can?(:read_group, @subject.group) }
+  condition(:project_member) { @subject.project.member?(@user) }
 
   rule { group_owner_or_project_admin }.enable :admin_project_group_link
 
+  rule { can_read_group | project_member }.enable :read_shared_with_group
+
   private
 
   def group_owner?
diff --git a/app/serializers/group_link/group_group_link_entity.rb b/app/serializers/group_link/group_group_link_entity.rb
index d5d7eea74ea..f855d89f593 100644
--- a/app/serializers/group_link/group_group_link_entity.rb
+++ b/app/serializers/group_link/group_group_link_entity.rb
@@ -4,7 +4,7 @@ module GroupLink
   class GroupGroupLinkEntity < GroupLink::GroupLinkEntity
     include RequestAwareEntity
 
-    expose :source do |group_link|
+    expose :source, if: ->(group_link) { can_read_shared_group?(group_link) } do |group_link|
       GroupEntity.represent(group_link.shared_from, only: [:id, :full_name, :web_url])
     end
 
diff --git a/app/serializers/group_link/group_link_entity.rb b/app/serializers/group_link/group_link_entity.rb
index 4cc7e9f3c8c..66645e736a9 100644
--- a/app/serializers/group_link/group_link_entity.rb
+++ b/app/serializers/group_link/group_link_entity.rb
@@ -19,16 +19,28 @@ module GroupLink
       group_link.class.access_options
     end
 
+    expose :is_shared_with_group_private do |group_link|
+      !can_read_shared_group?(group_link)
+    end
+
     expose :shared_with_group do
-      expose :avatar_url do |group_link|
+      expose :avatar_url, if: ->(group_link) { can_read_shared_group?(group_link) } do |group_link|
         group_link.shared_with_group.avatar_url(only_path: false, size: Member::AVATAR_SIZE)
       end
 
-      expose :web_url do |group_link|
+      expose :web_url, if: ->(group_link) { can_read_shared_group?(group_link) } do |group_link|
         group_link.shared_with_group.web_url
       end
 
-      expose :shared_with_group, merge: true, using: GroupBasicEntity
+      # We have to expose shared_with_group.id because we use this to get distinct
+      # with ancestors
+      expose :shared_with_group, merge: true do |group_link|
+        if can_read_shared_group?(group_link)
+          GroupBasicEntity.represent(group_link.shared_with_group)
+        else
+          GroupBasicEntity.represent(group_link.shared_with_group, only: [:id])
+        end
+      end
     end
 
     expose :can_update do |group_link, options|
@@ -45,6 +57,10 @@ module GroupLink
 
     private
 
+    def can_read_shared_group?(group_link)
+      can?(current_user, :read_shared_with_group, group_link)
+    end
+
     def current_user
       options[:current_user]
     end
diff --git a/app/serializers/group_link/project_group_link_entity.rb b/app/serializers/group_link/project_group_link_entity.rb
index d246bff1c58..fbad69bf2c5 100644
--- a/app/serializers/group_link/project_group_link_entity.rb
+++ b/app/serializers/group_link/project_group_link_entity.rb
@@ -4,7 +4,7 @@ module GroupLink
   class ProjectGroupLinkEntity < GroupLink::GroupLinkEntity
     include RequestAwareEntity
 
-    expose :source do |group_link|
+    expose :source, if: ->(group_link) { can_read_shared_group?(group_link) } do |group_link|
       ProjectEntity.represent(group_link.shared_from, only: [:id, :full_name])
     end
 
diff --git a/app/views/projects/tree/_tree_header.html.haml b/app/views/projects/tree/_tree_header.html.haml
index 37f27aa7caf..bed37d9cb63 100644
--- a/app/views/projects/tree/_tree_header.html.haml
+++ b/app/views/projects/tree/_tree_header.html.haml
@@ -10,9 +10,10 @@
 .tree-controls
   .d-block.d-sm-flex.flex-wrap.align-items-start.gl-children-ml-sm-3.gl-first-child-ml-sm-0<
     = render_if_exists 'projects/tree/lock_link'
+    = render 'projects/buttons/compare', project: @project, ref: @ref, root_ref: @repository&.root_ref
+
     #js-tree-history-link{ data: { history_link: project_commits_path(@project, @ref) } }
 
-    = render 'projects/buttons/compare', project: @project, ref: @ref, root_ref: @repository&.root_ref
     = render 'projects/find_file_link'
     = render 'shared/web_ide_button', blob: nil
     = render 'projects/buttons/download', project: @project, ref: @ref
diff --git a/doc/administration/settings/gitaly_timeouts.md b/doc/administration/settings/gitaly_timeouts.md
index 3304db3d148..edb44249aab 100644
--- a/doc/administration/settings/gitaly_timeouts.md
+++ b/doc/administration/settings/gitaly_timeouts.md
@@ -25,3 +25,4 @@ The following timeouts are available.
 | Default | 55 seconds | Timeout for most Gitaly calls (not enforced for `git` `fetch` and `push` operations, or Sidekiq jobs). For example, checking if a repository exists on disk. Makes sure that Gitaly calls made within a web request cannot exceed the entire request timeout. It should be shorter than the [worker timeout](../operations/puma.md#change-the-worker-timeout) that can be configured for [Puma](../../install/requirements.md#puma-settings). If a Gitaly call timeout exceeds the worker timeout, the remaining time from the worker timeout is used to avoid having to terminate the worker. |
 | Fast    | 10 seconds | Timeout for fast Gitaly operations used within requests, sometimes multiple times. For example, checking if a repository exists on disk. If fast operations exceed this threshold, there may be a problem with a storage shard. Failing fast can help maintain the stability of the GitLab instance.                                                                                                                                                                                                                                                                        |
 | Medium  | 30 seconds | Timeout for Gitaly operations that should be fast (possibly within requests) but preferably not used multiple times within a request. For example, loading blobs. Timeout that should be set between Default and Fast.                                                                                                                                                                                                                                                                                                                                                       |
+You can also [configure negotiation timeouts](../gitaly/configure_gitaly.md#configure-negotiation-timeouts).
diff --git a/doc/ci/pipelines/settings.md b/doc/ci/pipelines/settings.md
index 265fd674190..3baaba091d3 100644
--- a/doc/ci/pipelines/settings.md
+++ b/doc/ci/pipelines/settings.md
@@ -204,6 +204,7 @@ You can define how long a job can run before it times out.
 1. Expand **General pipelines**.
 1. In the **Timeout** field, enter the number of minutes, or a human-readable value like `2 hours`.
    Must be 10 minutes or more, and less than one month. Default is 60 minutes.
+   Pending jobs are dropped after 24 hours of inactivity. 
 
 Jobs that exceed the timeout are marked as failed.
 
diff --git a/doc/user/group/manage.md b/doc/user/group/manage.md
index d671b0434b6..d67e52a6fc3 100644
--- a/doc/user/group/manage.md
+++ b/doc/user/group/manage.md
@@ -130,6 +130,11 @@ After sharing the `Frontend` group with the `Engineering` group:
 
 - The **Groups** tab lists the `Engineering` group.
 - The **Groups** tab lists a group regardless of whether it is a public or private group.
+- From [GitLab 16.6](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/134623),
+  the invited group's name and membership source will be hidden unless:
+  - the invited group is public, or
+  - the current user is a member of the invited group, or
+  - the current user is a member of the current group.
 - All direct members of the `Engineering` group have access to the `Frontend` group. The least access is granted between the access in the `Engineering` group and the access in the `Frontend` group.
   - If `Member1` has the Maintainer role in `Engineering` and `Engineering` is added to `Frontend` with the Developer role, `Member1` has the Developer role in `Frontend`.
   - If `Member2` has the Guest role in `Engineering` and `Engineering` is added to `Frontend` with the Developer role, `Member2` has the Guest role in `Frontend`.
diff --git a/doc/user/packages/maven_repository/index.md b/doc/user/packages/maven_repository/index.md
index 6765aa2cbb1..2c395538455 100644
--- a/doc/user/packages/maven_repository/index.md
+++ b/doc/user/packages/maven_repository/index.md
@@ -24,7 +24,7 @@ Supported clients:
 
 ### Authenticate to the Package Registry
 
-You need an token to publish a package. There are different tokens available depending on what you're trying to achieve. For more information, review the [guidance on tokens](../package_registry/index.md#authenticate-with-the-registry).
+You need a token to publish a package. There are different tokens available depending on what you're trying to achieve. For more information, review the [guidance on tokens](../package_registry/index.md#authenticate-with-the-registry).
 
 Create a token and save it to use later in the process.
 
diff --git a/doc/user/project/members/share_project_with_groups.md b/doc/user/project/members/share_project_with_groups.md
index deefe9040fa..4474cb55929 100644
--- a/doc/user/project/members/share_project_with_groups.md
+++ b/doc/user/project/members/share_project_with_groups.md
@@ -76,6 +76,11 @@ In addition:
 
 - On the group's page, the project is listed on the **Shared projects** tab.
 - On the project's **Members** page, the group is listed on the **Groups** tab.
+- From [GitLab 16.6](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/134623),
+  the invited group's name and membership source will be hidden unless:
+  - the group is public, or
+  - the current user is a member of the group, or
+  - the current user is a member of the project.
 - Each user is assigned a maximum role.
 - Members who have the **Project Invite** badge next to their profile on the usage quota page count towards the billable members of the shared project's top-level group.
 
diff --git a/doc/user/project/merge_requests/index.md b/doc/user/project/merge_requests/index.md
index 22cd8f9b89e..58cfd90c13f 100644
--- a/doc/user/project/merge_requests/index.md
+++ b/doc/user/project/merge_requests/index.md
@@ -489,3 +489,31 @@ p = Project.find_by_full_path('<namespace/project>')
 m = p.merge_requests.find_by(iid: <iid>)
 Issuable::DestroyService.new(container: m.project, current_user: u).execute(m)
 ```
+
+### Merge request pre-receive hook failed
+
+If a merge request times out, you might see messages that indicate a Puma worker
+timeout problem:
+
+- In the GitLab UI:
+
+  ```plaintext
+  Something went wrong during merge pre-receive hook.
+  500 Internal Server Error. Try again.
+  ```
+
+- In the `gitlab-rails/api_json.log` log file:
+
+  ```plaintext
+  Rack::Timeout::RequestTimeoutException
+  Request ran for longer than 60000ms
+  ```
+
+This error can happen if your merge request:
+
+- Contains many diffs.
+- Is many commits behind the target branch.
+
+Users in self-managed installations can request an administrator review server logs
+to determine the cause of the error. GitLab SaaS users should
+[contact Support](https://about.gitlab.com/support/#contact-support) for help.
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 48df831f014..8de70afd7fa 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -16846,27 +16846,6 @@ msgstr ""
 msgid "Deployment|Waiting"
 msgstr ""
 
-msgid "Deployment|blocked"
-msgstr ""
-
-msgid "Deployment|canceled"
-msgstr ""
-
-msgid "Deployment|created"
-msgstr ""
-
-msgid "Deployment|failed"
-msgstr ""
-
-msgid "Deployment|running"
-msgstr ""
-
-msgid "Deployment|skipped"
-msgstr ""
-
-msgid "Deployment|success"
-msgstr ""
-
 msgid "Deprecated API rate limits"
 msgstr ""
 
@@ -29553,6 +29532,9 @@ msgstr ""
 msgid "Members|Membership"
 msgstr ""
 
+msgid "Members|Private group information is only accessible to its members."
+msgstr ""
+
 msgid "Members|Remove \"%{groupName}\""
 msgstr ""
 
diff --git a/spec/fixtures/api/schemas/group_link/group_link.json b/spec/fixtures/api/schemas/group_link/group_link.json
index 885ed6d18e0..4db38952ecc 100644
--- a/spec/fixtures/api/schemas/group_link/group_link.json
+++ b/spec/fixtures/api/schemas/group_link/group_link.json
@@ -44,6 +44,9 @@
     "valid_roles": {
       "type": "object"
     },
+    "is_shared_with_group_private": {
+      "type": "boolean"
+    },
     "shared_with_group": {
       "type": "object",
       "required": [
@@ -89,4 +92,4 @@
       "type": "boolean"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/spec/frontend/helpers/init_simple_app_helper_spec.js b/spec/frontend/helpers/init_simple_app_helper_spec.js
index 7938e3851d0..de39a6f9d70 100644
--- a/spec/frontend/helpers/init_simple_app_helper_spec.js
+++ b/spec/frontend/helpers/init_simple_app_helper_spec.js
@@ -1,7 +1,9 @@
 import { createWrapper } from '@vue/test-utils';
 import Vue from 'vue';
+import VueApollo from 'vue-apollo';
 import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
 import { initSimpleApp } from '~/helpers/init_simple_app_helper';
+import createDefaultClient from '~/lib/graphql';
 
 const MockComponent = Vue.component('MockComponent', {
   props: {
@@ -25,10 +27,10 @@ const findMock = () => wrapper.findComponent(MockComponent);
 
 const didCreateApp = () => wrapper !== undefined;
 
-const initMock = (html, props = {}) => {
+const initMock = (html, options = {}) => {
   setHTMLFixture(html);
 
-  const app = initSimpleApp('#mount-here', MockComponent, { props });
+  const app = initSimpleApp('#mount-here', MockComponent, options);
 
   wrapper = app ? createWrapper(app) : undefined;
 };
@@ -58,4 +60,35 @@ describe('helpers/init_simple_app_helper/initSimpleApp', () => {
       count: 123,
     });
   });
+
+  describe('options', () => {
+    describe('withApolloProvider', () => {
+      describe('if not true or not VueApollo', () => {
+        it('apolloProvider not created', () => {
+          initMock('<div id="mount-here"></div>', { withApolloProvider: false });
+
+          expect(wrapper.vm.$apollo).toBeUndefined();
+        });
+      });
+
+      describe('if true, creates default provider', () => {
+        it('creates a default apolloProvider', () => {
+          initMock('<div id="mount-here"></div>', { withApolloProvider: true });
+
+          expect(wrapper.vm.$apollo).not.toBeUndefined();
+        });
+      });
+
+      describe('if VueApollo, sets as default provider', () => {
+        it('uses the provided apolloClient', () => {
+          Vue.use(VueApollo);
+          const apolloProvider = new VueApollo({ defaultClient: createDefaultClient() });
+
+          initMock('<div id="mount-here"></div>', { withApolloProvider: apolloProvider });
+
+          expect(wrapper.vm.$apolloProvider).toBe(apolloProvider);
+        });
+      });
+    });
+  });
 });
diff --git a/spec/frontend/members/components/avatars/group_avatar_spec.js b/spec/frontend/members/components/avatars/group_avatar_spec.js
index 8e4263f88fe..1463aa5ae59 100644
--- a/spec/frontend/members/components/avatars/group_avatar_spec.js
+++ b/spec/frontend/members/components/avatars/group_avatar_spec.js
@@ -1,8 +1,9 @@
-import { GlAvatarLink } from '@gitlab/ui';
+import { GlAvatarLabeled, GlAvatarLink } from '@gitlab/ui';
 import { getByText as getByTextHelper } from '@testing-library/dom';
 import { mount, createWrapper } from '@vue/test-utils';
 import GroupAvatar from '~/members/components/avatars/group_avatar.vue';
-import { group as member } from '../../mock_data';
+import PrivateIcon from '~/members/components/icons/private_icon.vue';
+import { group as member, privateGroup as privateMember } from '../../mock_data';
 
 describe('MemberList', () => {
   let wrapper;
@@ -21,11 +22,9 @@ describe('MemberList', () => {
   const getByText = (text, options) =>
     createWrapper(getByTextHelper(wrapper.element, text, options));
 
-  beforeEach(() => {
-    createComponent();
-  });
-
   it('renders link to group', () => {
+    createComponent();
+
     const link = wrapper.findComponent(GlAvatarLink);
 
     expect(link.exists()).toBe(true);
@@ -33,10 +32,26 @@ describe('MemberList', () => {
   });
 
   it("renders group's full name", () => {
+    createComponent();
+
     expect(getByText(group.fullName).exists()).toBe(true);
   });
 
   it("renders group's avatar", () => {
+    createComponent();
+
     expect(wrapper.find('img').attributes('src')).toBe(group.avatarUrl);
   });
+
+  describe('when group is private', () => {
+    beforeEach(() => {
+      createComponent({ member: privateMember });
+    });
+
+    it('renders private avatar with icon', () => {
+      expect(wrapper.findComponent(GlAvatarLink).exists()).toBe(false);
+      expect(wrapper.findComponent(GlAvatarLabeled).props('label')).toBe('Private');
+      expect(wrapper.findComponent(PrivateIcon).exists()).toBe(true);
+    });
+  });
 });
diff --git a/spec/frontend/members/components/icons/private_icon_spec.js b/spec/frontend/members/components/icons/private_icon_spec.js
new file mode 100644
index 00000000000..ea2b65e3307
--- /dev/null
+++ b/spec/frontend/members/components/icons/private_icon_spec.js
@@ -0,0 +1,30 @@
+import { GlIcon } from '@gitlab/ui';
+import { mountExtended } from 'helpers/vue_test_utils_helper';
+import { createMockDirective, getBinding } from 'helpers/vue_mock_directive';
+import PrivateIcon from '~/members/components/icons/private_icon.vue';
+
+describe('PrivateIcon', () => {
+  let wrapper;
+
+  const createComponent = () => {
+    wrapper = mountExtended(PrivateIcon, {
+      directives: {
+        GlTooltip: createMockDirective('gl-tooltip'),
+      },
+    });
+  };
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  it('renders private icon with tooltip', () => {
+    const icon = wrapper.findComponent(GlIcon);
+    const tooltipDirective = getBinding(icon.element, 'gl-tooltip');
+
+    expect(icon.props('name')).toBe('eye-slash');
+    expect(tooltipDirective.value).toBe(
+      'Private group information is only accessible to its members.',
+    );
+  });
+});
diff --git a/spec/frontend/members/components/table/member_source_spec.js b/spec/frontend/members/components/table/member_source_spec.js
index bbfbb19fd92..16b8d239944 100644
--- a/spec/frontend/members/components/table/member_source_spec.js
+++ b/spec/frontend/members/components/table/member_source_spec.js
@@ -1,6 +1,7 @@
 import { mountExtended } from 'helpers/vue_test_utils_helper';
 import { createMockDirective, getBinding } from 'helpers/vue_mock_directive';
 import MemberSource from '~/members/components/table/member_source.vue';
+import PrivateIcon from '~/members/components/icons/private_icon.vue';
 
 describe('MemberSource', () => {
   let wrapper;
@@ -30,6 +31,20 @@ describe('MemberSource', () => {
 
   const getTooltipDirective = (elementWrapper) => getBinding(elementWrapper.element, 'gl-tooltip');
 
+  describe('when source is private', () => {
+    beforeEach(() => {
+      createComponent({
+        isSharedWithGroupPrivate: true,
+        isDirectMember: false,
+      });
+    });
+
+    it('displays private with icon', () => {
+      expect(wrapper.findByText('Private').exists()).toBe(true);
+      expect(wrapper.findComponent(PrivateIcon).exists()).toBe(true);
+    });
+  });
+
   describe('direct member', () => {
     describe('when created by is available', () => {
       it('displays "Direct member by <user name>"', () => {
diff --git a/spec/frontend/members/components/table/members_table_spec.js b/spec/frontend/members/components/table/members_table_spec.js
index 4539478bf9a..791155fcd1b 100644
--- a/spec/frontend/members/components/table/members_table_spec.js
+++ b/spec/frontend/members/components/table/members_table_spec.js
@@ -27,6 +27,7 @@ import {
   directMember,
   invite,
   accessRequest,
+  privateGroup,
   pagination,
 } from '../../mock_data';
 
@@ -245,6 +246,24 @@ describe('MembersTable', () => {
         });
       });
     });
+
+    describe('Source field', () => {
+      beforeEach(() => {
+        createComponent({
+          members: [privateGroup],
+          tableFields: ['source'],
+        });
+      });
+
+      it('passes correct props to `MemberSource` component', () => {
+        expect(wrapper.findComponent(MemberSource).props()).toMatchObject({
+          memberSource: {},
+          isDirectMember: true,
+          isSharedWithGroupPrivate: true,
+          createdBy: null,
+        });
+      });
+    });
   });
 
   describe('when `members` is an empty array', () => {
diff --git a/spec/frontend/members/mock_data.js b/spec/frontend/members/mock_data.js
index 4598c74757e..4fb0b76fa49 100644
--- a/spec/frontend/members/mock_data.js
+++ b/spec/frontend/members/mock_data.js
@@ -70,6 +70,19 @@ export const group = {
   validRoles: { Guest: 10, Reporter: 20, Developer: 30, Maintainer: 40, Owner: 50 },
 };
 
+export const privateGroup = {
+  accessLevel: { integerValue: 10, stringValue: 'Guest' },
+  isSharedWithGroupPrivate: true,
+  sharedWithGroup: {
+    id: 24,
+  },
+  id: 3,
+  isDirectMember: true,
+  createdAt: '2020-08-06T15:31:07.662Z',
+  expiresAt: null,
+  validRoles: { Guest: 10, Reporter: 20, Developer: 30, Maintainer: 40, Owner: 50 },
+};
+
 export const modalData = {
   isAccessRequest: true,
   isInvite: true,
diff --git a/spec/helpers/colors_helper_spec.rb b/spec/helpers/colors_helper_spec.rb
index ca5cafb7ebe..328796ef1ae 100644
--- a/spec/helpers/colors_helper_spec.rb
+++ b/spec/helpers/colors_helper_spec.rb
@@ -39,51 +39,4 @@ RSpec.describe ColorsHelper do
       end
     end
   end
-
-  describe '#rgb_array_to_hex_color' do
-    context 'valid RGB array' do
-      where(:rgb_array, :hex_color) do
-        [0, 0, 0]       | '#000000'
-        [0, 0, 255]     | '#0000ff'
-        [0, 255, 0]     | '#00ff00'
-        [255, 0, 0]     | '#ff0000'
-        [12, 34, 56]    | '#0c2238'
-        [222, 111, 88]  | '#de6f58'
-        [255, 255, 255] | '#ffffff'
-      end
-
-      with_them do
-        it 'returns correct hex color' do
-          expect(helper.rgb_array_to_hex_color(rgb_array)).to eq(hex_color)
-        end
-      end
-    end
-
-    context 'invalid RGB array' do
-      where(:rgb_array) do
-        [
-          '',
-          '#000000',
-          0,
-          nil,
-          [],
-          [0],
-          [0, 0],
-          [0, 0, 0, 0],
-          [-1, 0, 0],
-          [0, -1, 0],
-          [0, 0, -1],
-          [256, 0, 0],
-          [0, 256, 0],
-          [0, 0, 256]
-        ]
-      end
-
-      with_them do
-        it 'raise ArgumentError' do
-          expect { helper.rgb_array_to_hex_color(rgb_array) }.to raise_error(ArgumentError)
-        end
-      end
-    end
-  end
 end
diff --git a/spec/helpers/environment_helper_spec.rb b/spec/helpers/environment_helper_spec.rb
index 1383bf34881..0c04417fca6 100644
--- a/spec/helpers/environment_helper_spec.rb
+++ b/spec/helpers/environment_helper_spec.rb
@@ -3,45 +3,6 @@
 require 'spec_helper'
 
 RSpec.describe EnvironmentHelper, feature_category: :environment_management do
-  describe '#render_deployment_status' do
-    context 'when using a manual deployment' do
-      it 'renders a span tag' do
-        deploy = build(:deployment, deployable: nil, status: :success)
-        html = helper.render_deployment_status(deploy)
-
-        expect(html).to have_css('span.ci-status.ci-success')
-      end
-    end
-
-    context 'when using a deployment from a build' do
-      it 'renders a link tag' do
-        deploy = build(:deployment, status: :success)
-        html = helper.render_deployment_status(deploy)
-
-        expect(html).to have_css('a.ci-status.ci-success')
-      end
-    end
-
-    context 'when deploying from a bridge' do
-      it 'renders a span tag' do
-        deploy = build(:deployment, deployable: create(:ci_bridge), status: :success)
-        html = helper.render_deployment_status(deploy)
-
-        expect(html).to have_css('span.ci-status.ci-success')
-      end
-    end
-
-    context 'for a blocked deployment' do
-      subject { helper.render_deployment_status(deployment) }
-
-      let(:deployment) { build(:deployment, :blocked) }
-
-      it 'indicates the status' do
-        expect(subject).to have_text('blocked')
-      end
-    end
-  end
-
   describe '#environments_detail_data_json' do
     subject { helper.environments_detail_data_json(user, project, environment) }
 
diff --git a/spec/helpers/environments_helper_spec.rb b/spec/helpers/environments_helper_spec.rb
index 6624404bc49..997f9e6eac7 100644
--- a/spec/helpers/environments_helper_spec.rb
+++ b/spec/helpers/environments_helper_spec.rb
@@ -95,17 +95,4 @@ RSpec.describe EnvironmentsHelper, feature_category: :environment_management do
       expect(subject).to eq(true)
     end
   end
-
-  describe '#environment_logs_data' do
-    it 'returns logs data' do
-      expected_data = {
-        "environment_name": environment.name,
-        "environments_path": api_v4_projects_environments_path(id: project.id),
-        "environment_id": environment.id,
-        "clusters_path": project_clusters_path(project, format: :json)
-      }
-
-      expect(helper.environment_logs_data(project, environment)).to eq(expected_data)
-    end
-  end
 end
diff --git a/spec/helpers/groups/group_members_helper_spec.rb b/spec/helpers/groups/group_members_helper_spec.rb
index a9c6822e2c1..3a7c852b683 100644
--- a/spec/helpers/groups/group_members_helper_spec.rb
+++ b/spec/helpers/groups/group_members_helper_spec.rb
@@ -19,14 +19,9 @@ RSpec.describe Groups::GroupMembersHelper do
     let(:members_collection) { members }
 
     before do
-      allow(helper).to receive(:can?).with(current_user, :export_group_memberships, group).and_return(false)
-      allow(helper).to receive(:can?).with(current_user, :owner_access, group).and_return(true)
       allow(helper).to receive(:current_user).and_return(current_user)
-      allow(helper).to receive(:can?).with(current_user, :export_group_memberships, shared_group).and_return(true)
       allow(helper).to receive(:group_group_member_path).with(shared_group, ':id').and_return('/groups/foo-bar/-/group_members/:id')
       allow(helper).to receive(:group_group_link_path).with(shared_group, ':id').and_return('/groups/foo-bar/-/group_links/:id')
-      allow(helper).to receive(:can?).with(current_user, :admin_group_member, shared_group).and_return(true)
-      allow(helper).to receive(:can?).with(current_user, :admin_member_access_request, shared_group).and_return(true)
     end
 
     subject do
@@ -54,8 +49,8 @@ RSpec.describe Groups::GroupMembersHelper do
     it 'returns expected json' do
       expected = {
         source_id: shared_group.id,
-        can_manage_members: true,
-        can_manage_access_requests: true,
+        can_manage_members: be_in([true, false]),
+        can_manage_access_requests: be_in([true, false]),
         group_name: shared_group.name,
         group_path: shared_group.full_path
       }
@@ -102,9 +97,6 @@ RSpec.describe Groups::GroupMembersHelper do
         before do
           allow(helper).to receive(:group_group_member_path).with(sub_shared_group, ':id').and_return('/groups/foo-bar/-/group_members/:id')
           allow(helper).to receive(:group_group_link_path).with(sub_shared_group, ':id').and_return('/groups/foo-bar/-/group_links/:id')
-          allow(helper).to receive(:can?).with(current_user, :admin_group_member, sub_shared_group).and_return(true)
-          allow(helper).to receive(:can?).with(current_user, :admin_member_access_request, sub_shared_group).and_return(true)
-          allow(helper).to receive(:can?).with(current_user, :export_group_memberships, sub_shared_group).and_return(true)
         end
 
         subject do
diff --git a/spec/helpers/members_helper_spec.rb b/spec/helpers/members_helper_spec.rb
index 68a12d8dbf7..d2d758cdc7c 100644
--- a/spec/helpers/members_helper_spec.rb
+++ b/spec/helpers/members_helper_spec.rb
@@ -45,21 +45,6 @@ RSpec.describe MembersHelper do
     end
   end
 
-  describe '#remove_member_title' do
-    let(:requester) { create(:user) }
-    let(:project) { create(:project, :public) }
-    let(:project_member) { build(:project_member, project: project) }
-    let(:project_member_request) { project.request_access(requester) }
-    let(:group) { create(:group) }
-    let(:group_member) { build(:group_member, group: group) }
-    let(:group_member_request) { group.request_access(requester) }
-
-    it { expect(remove_member_title(project_member)).to eq 'Remove user from project' }
-    it { expect(remove_member_title(project_member_request)).to eq 'Deny access request from project' }
-    it { expect(remove_member_title(group_member)).to eq 'Remove user from group and any subresources' }
-    it { expect(remove_member_title(group_member_request)).to eq 'Deny access request from group' }
-  end
-
   describe '#leave_confirmation_message' do
     let(:project) { build_stubbed(:project) }
     let(:group) { build_stubbed(:group) }
diff --git a/spec/helpers/users/callouts_helper_spec.rb b/spec/helpers/users/callouts_helper_spec.rb
index 10f021330db..2a0ba1279b0 100644
--- a/spec/helpers/users/callouts_helper_spec.rb
+++ b/spec/helpers/users/callouts_helper_spec.rb
@@ -2,7 +2,7 @@
 
 require "spec_helper"
 
-RSpec.describe Users::CalloutsHelper do
+RSpec.describe Users::CalloutsHelper, feature_category: :navigation do
   let_it_be(:user, refind: true) { create(:user) }
 
   before do
diff --git a/spec/policies/group_group_link_policy_spec.rb b/spec/policies/group_group_link_policy_spec.rb
new file mode 100644
index 00000000000..34bc1bc3bec
--- /dev/null
+++ b/spec/policies/group_group_link_policy_spec.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe GroupGroupLinkPolicy, feature_category: :system_access do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:group) { create(:group, :private) }
+  let_it_be(:group2) { create(:group, :private) }
+
+  let(:group_group_link) do
+    create(:group_group_link, shared_group: group, shared_with_group: group2)
+  end
+
+  subject(:policy) { described_class.new(user, group_group_link) }
+
+  describe 'read_shared_with_group' do
+    context 'when the user is a shared_group member' do
+      before_all do
+        group.add_guest(user)
+      end
+
+      it 'can read_shared_with_group' do
+        expect(policy).to be_allowed(:read_shared_with_group)
+      end
+    end
+
+    context 'when the user is not a shared_group member' do
+      context 'when user is not a shared_with_group member' do
+        context 'when the shared_with_group is private' do
+          it 'cannot read_shared_with_group' do
+            expect(policy).to be_disallowed(:read_shared_with_group)
+          end
+
+          context 'when the shared group is public' do
+            let_it_be(:group) { create(:group, :public) }
+
+            it 'cannot read_shared_with_group' do
+              expect(policy).to be_disallowed(:read_shared_with_group)
+            end
+          end
+        end
+
+        context 'when the shared_with_group is public' do
+          let_it_be(:group2) { create(:group, :public) }
+
+          it 'can read_shared_with_group' do
+            expect(policy).to be_allowed(:read_shared_with_group)
+          end
+        end
+      end
+
+      context 'when user is a shared_with_group member' do
+        before_all do
+          group2.add_developer(user)
+        end
+
+        it 'can read_shared_with_group' do
+          expect(policy).to be_allowed(:read_shared_with_group)
+        end
+      end
+    end
+  end
+end
diff --git a/spec/policies/project_group_link_policy_spec.rb b/spec/policies/project_group_link_policy_spec.rb
index 9461f33decb..1047d3acb1e 100644
--- a/spec/policies/project_group_link_policy_spec.rb
+++ b/spec/policies/project_group_link_policy_spec.rb
@@ -4,9 +4,8 @@ require 'spec_helper'
 
 RSpec.describe ProjectGroupLinkPolicy, feature_category: :system_access do
   let_it_be(:user) { create(:user) }
-  let_it_be(:group) { create(:group, :private) }
   let_it_be(:group2) { create(:group, :private) }
-  let_it_be(:project) { create(:project, :private, group: group) }
+  let_it_be(:project) { create(:project, :private) }
 
   let(:project_group_link) do
     create(:project_group_link, project: project, group: group2, group_access: Gitlab::Access::DEVELOPER)
@@ -14,42 +13,92 @@ RSpec.describe ProjectGroupLinkPolicy, feature_category: :system_access do
 
   subject(:policy) { described_class.new(user, project_group_link) }
 
-  context 'when the user is a group owner' do
-    before do
-      project_group_link.group.add_owner(user)
-    end
+  describe 'admin_project_group_link' do
+    context 'when the user is a group owner' do
+      before_all do
+        group2.add_owner(user)
+      end
 
-    context 'when user is not project maintainer' do
-      it 'can admin group_project_link' do
-        expect(policy).to be_allowed(:admin_project_group_link)
+      context 'when user is not project maintainer' do
+        it 'can admin group_project_link' do
+          expect(policy).to be_allowed(:admin_project_group_link)
+        end
+      end
+
+      context 'when user is a project maintainer' do
+        before do
+          project_group_link.project.add_maintainer(user)
+        end
+
+        it 'can admin group_project_link' do
+          expect(policy).to be_allowed(:admin_project_group_link)
+        end
       end
     end
 
-    context 'when user is a project maintainer' do
-      before do
-        project_group_link.project.add_maintainer(user)
+    context 'when user is not a group owner' do
+      context 'when user is a project maintainer' do
+        it 'can admin group_project_link' do
+          project_group_link.project.add_maintainer(user)
+
+          expect(policy).to be_allowed(:admin_project_group_link)
+        end
       end
 
-      it 'can admin group_project_link' do
-        expect(policy).to be_allowed(:admin_project_group_link)
+      context 'when user is not a project maintainer' do
+        it 'cannot admin group_project_link' do
+          project_group_link.project.add_developer(user)
+
+          expect(policy).to be_disallowed(:admin_project_group_link)
+        end
       end
     end
   end
 
-  context 'when user is not a group owner' do
-    context 'when user is a project maintainer' do
-      it 'can admin group_project_link' do
-        project_group_link.project.add_maintainer(user)
+  describe 'read_shared_with_group' do
+    context 'when the user is a project member' do
+      before_all do
+        project.add_guest(user)
+      end
 
-        expect(policy).to be_allowed(:admin_project_group_link)
+      it 'can read_shared_with_group' do
+        expect(policy).to be_allowed(:read_shared_with_group)
       end
     end
 
-    context 'when user is not a project maintainer' do
-      it 'cannot admin group_project_link' do
-        project_group_link.project.add_developer(user)
+    context 'when the user is not a project member' do
+      context 'when user is not a group member' do
+        context 'when the group is private' do
+          it 'cannot read_shared_with_group' do
+            expect(policy).to be_disallowed(:read_shared_with_group)
+          end
 
-        expect(policy).to be_disallowed(:admin_project_group_link)
+          context 'when the project is public' do
+            let_it_be(:project) { create(:project, :public) }
+
+            it 'cannot read_shared_with_group' do
+              expect(policy).to be_disallowed(:read_shared_with_group)
+            end
+          end
+        end
+
+        context 'when the group is public' do
+          let_it_be(:group2) { create(:group, :public) }
+
+          it 'can read_shared_with_group' do
+            expect(policy).to be_allowed(:read_shared_with_group)
+          end
+        end
+      end
+
+      context 'when user is a group member' do
+        before_all do
+          group2.add_guest(user)
+        end
+
+        it 'can read_shared_with_group' do
+          expect(policy).to be_allowed(:read_shared_with_group)
+        end
       end
     end
   end
diff --git a/spec/serializers/group_link/group_group_link_entity_spec.rb b/spec/serializers/group_link/group_group_link_entity_spec.rb
index 502cdc5c048..8f31c53e841 100644
--- a/spec/serializers/group_link/group_group_link_entity_spec.rb
+++ b/spec/serializers/group_link/group_group_link_entity_spec.rb
@@ -9,8 +9,8 @@ RSpec.describe GroupLink::GroupGroupLinkEntity do
 
   let(:entity) { described_class.new(group_group_link, { current_user: current_user, source: shared_group }) }
 
-  before do
-    allow(entity).to receive(:current_user).and_return(current_user)
+  subject(:as_json) do
+    entity.as_json
   end
 
   it 'matches json schema' do
@@ -19,7 +19,7 @@ RSpec.describe GroupLink::GroupGroupLinkEntity do
 
   context 'source' do
     it 'exposes `source`' do
-      expect(entity.as_json[:source]).to include(
+      expect(as_json[:source]).to include(
         id: shared_group.id,
         full_name: shared_group.full_name,
         web_url: shared_group.web_url
@@ -38,9 +38,9 @@ RSpec.describe GroupLink::GroupGroupLinkEntity do
     end
   end
 
-  context 'when current user has `:admin_group_member` permissions' do
-    before do
-      allow(entity).to receive(:can?).with(current_user, :admin_group_member, shared_group).and_return(true)
+  context 'when current user has owner permissions for the shared group' do
+    before_all do
+      shared_group.add_owner(current_user)
     end
 
     context 'when direct_member? is true' do
@@ -49,10 +49,8 @@ RSpec.describe GroupLink::GroupGroupLinkEntity do
       end
 
       it 'exposes `can_update` and `can_remove` as `true`' do
-        json = entity.as_json
-
-        expect(json[:can_update]).to be true
-        expect(json[:can_remove]).to be true
+        expect(as_json[:can_update]).to be true
+        expect(as_json[:can_remove]).to be true
       end
     end
 
@@ -62,10 +60,51 @@ RSpec.describe GroupLink::GroupGroupLinkEntity do
       end
 
       it 'exposes `can_update` and `can_remove` as `true`' do
-        json = entity.as_json
+        expect(as_json[:can_update]).to be false
+        expect(as_json[:can_remove]).to be false
+      end
+    end
+  end
 
-        expect(json[:can_update]).to be false
-        expect(json[:can_remove]).to be false
+  context 'when current user is not a group member' do
+    context 'when shared with group is public' do
+      it 'does expose shared_with_group details' do
+        expect(as_json[:shared_with_group].keys).to include(:id, :avatar_url, :web_url, :name)
+      end
+
+      it 'does expose source details' do
+        expect(as_json[:source].keys).to include(:id, :full_name)
+      end
+
+      it 'sets is_shared_with_group_private to false' do
+        expect(as_json[:is_shared_with_group_private]).to be false
+      end
+    end
+
+    context 'when shared with group is private' do
+      let_it_be(:shared_with_group) { create(:group, :private) }
+
+      let_it_be(:group_group_link) do
+        create(
+          :group_group_link,
+          {
+            shared_group: shared_group,
+            shared_with_group: shared_with_group,
+            expires_at: '2020-05-12'
+          }
+        )
+      end
+
+      it 'does not expose shared_with_group details' do
+        expect(as_json[:shared_with_group].keys).to contain_exactly(:id)
+      end
+
+      it 'does not expose source details' do
+        expect(as_json[:source]).to be_nil
+      end
+
+      it 'sets is_shared_with_group_private to true' do
+        expect(as_json[:is_shared_with_group_private]).to be true
       end
     end
   end
diff --git a/spec/serializers/group_link/project_group_link_entity_spec.rb b/spec/serializers/group_link/project_group_link_entity_spec.rb
index 1a8fcb2cfd3..00bfc43f17e 100644
--- a/spec/serializers/group_link/project_group_link_entity_spec.rb
+++ b/spec/serializers/group_link/project_group_link_entity_spec.rb
@@ -8,51 +8,69 @@ RSpec.describe GroupLink::ProjectGroupLinkEntity do
 
   let(:entity) { described_class.new(project_group_link, { current_user: current_user, source: project_group_link.project }) }
 
-  before do
-    allow(entity).to receive(:current_user).and_return(current_user)
+  subject(:as_json) do
+    entity.as_json
   end
 
   it 'matches json schema' do
     expect(entity.to_json).to match_schema('group_link/project_group_link')
   end
 
-  context 'when current user has `admin_project_member` permissions' do
-    before do
-      allow(entity).to receive(:can?).with(current_user, :admin_project_group_link, project_group_link).and_return(false)
-      allow(entity).to receive(:can?).with(current_user, :admin_project_member, project_group_link.project).and_return(true)
+  context 'when current user is a project maintainer' do
+    before_all do
+      project_group_link.project.add_maintainer(current_user)
     end
 
     it 'exposes `can_update` and `can_remove` as `true`' do
-      json = entity.as_json
-
-      expect(json[:can_update]).to be true
-      expect(json[:can_remove]).to be false
+      expect(as_json[:can_update]).to be true
+      expect(as_json[:can_remove]).to be true
     end
   end
 
   context 'when current user is a group owner' do
-    before do
-      allow(entity).to receive(:can?).with(current_user, :admin_project_group_link, project_group_link).and_return(true)
-      allow(entity).to receive(:can?).with(current_user, :admin_project_member, project_group_link.project).and_return(false)
+    before_all do
+      project_group_link.group.add_owner(current_user)
     end
 
     it 'exposes `can_remove` as true' do
-      json = entity.as_json
-
-      expect(json[:can_remove]).to be true
+      expect(as_json[:can_remove]).to be true
     end
   end
 
   context 'when current user is not a group owner' do
-    before do
-      allow(entity).to receive(:can?).with(current_user, :admin_project_group_link, project_group_link).and_return(false)
-      allow(entity).to receive(:can?).with(current_user, :admin_project_member, project_group_link.project).and_return(false)
+    it 'exposes `can_remove` as false' do
+      expect(as_json[:can_remove]).to be false
     end
 
-    it 'exposes `can_remove` as false' do
-      json = entity.as_json
+    context 'when group is public' do
+      it 'does expose shared_with_group details' do
+        expect(as_json[:shared_with_group].keys).to include(:id, :avatar_url, :web_url, :name)
+      end
 
-      expect(json[:can_remove]).to be false
+      it 'does expose source details' do
+        expect(as_json[:source].keys).to include(:id, :full_name)
+      end
+
+      it 'sets is_shared_with_group_private to false' do
+        expect(as_json[:is_shared_with_group_private]).to be false
+      end
+    end
+
+    context 'when group is private' do
+      let_it_be(:private_group) { create(:group, :private) }
+      let_it_be(:project_group_link) { create(:project_group_link, group: private_group) }
+
+      it 'does not expose shared_with_group details' do
+        expect(as_json[:shared_with_group].keys).to contain_exactly(:id)
+      end
+
+      it 'does not expose source details' do
+        expect(as_json[:source]).to be_nil
+      end
+
+      it 'sets is_shared_with_group_private to true' do
+        expect(as_json[:is_shared_with_group_private]).to be true
+      end
     end
   end
 end