diff --git a/.rubocop_todo/style/format_string.yml b/.rubocop_todo/style/format_string.yml
index adcb8b70f5a..4da3c32416c 100644
--- a/.rubocop_todo/style/format_string.yml
+++ b/.rubocop_todo/style/format_string.yml
@@ -142,6 +142,7 @@ Style/FormatString:
     - 'app/presenters/ci/pipeline_presenter.rb'
     - 'app/presenters/merge_request_presenter.rb'
     - 'app/presenters/project_presenter.rb'
+    - 'app/presenters/key_presenter.rb'
     - 'app/serializers/build_details_entity.rb'
     - 'app/services/alert_management/alerts/update_service.rb'
     - 'app/services/boards/lists/base_create_service.rb'
diff --git a/app/assets/javascripts/packages_and_registries/infrastructure_registry/list/components/packages_list.vue b/app/assets/javascripts/packages_and_registries/infrastructure_registry/list/components/packages_list.vue
index dab4a051d0c..8b6a5c59847 100644
--- a/app/assets/javascripts/packages_and_registries/infrastructure_registry/list/components/packages_list.vue
+++ b/app/assets/javascripts/packages_and_registries/infrastructure_registry/list/components/packages_list.vue
@@ -81,10 +81,9 @@ export default {
     },
   },
   i18n: {
-    deleteModalContent: s__(
-      'PackageRegistry|You are about to delete %{name}, this operation is irreversible, are you sure?',
-    ),
-    modalAction: s__('PackageRegistry|Delete package'),
+    deleteModalContent: s__('PackageRegistry|You are about to delete %{name}, are you sure?'),
+    modalTitle: s__('PackageRegistry|Delete package'),
+    modalAction: s__('PackageRegistry|Permanently delete'),
   },
 };
 </script>
@@ -120,13 +119,13 @@ export default {
       <gl-modal
         ref="packageListDeleteModal"
         size="sm"
-        modal-id="confirm-delete-pacakge"
+        modal-id="confirm-delete-package"
         :action-primary="deleteModalActionPrimaryProps"
         :action-cancel="deleteModalActionCancelProps"
         @ok="deleteItemConfirmation"
         @cancel="deleteItemCanceled"
       >
-        <template #modal-title>{{ $options.i18n.modalAction }}</template>
+        <template #modal-title>{{ $options.i18n.modalTitle }}</template>
         <gl-sprintf :message="$options.i18n.deleteModalContent">
           <template #name>
             <strong>{{ deletePackageName }}</strong>
diff --git a/app/assets/javascripts/packages_and_registries/package_registry/components/list/packages_list.vue b/app/assets/javascripts/packages_and_registries/package_registry/components/list/packages_list.vue
index e84f181e9b2..c6583b8f09f 100644
--- a/app/assets/javascripts/packages_and_registries/package_registry/components/list/packages_list.vue
+++ b/app/assets/javascripts/packages_and_registries/package_registry/components/list/packages_list.vue
@@ -122,10 +122,9 @@ export default {
     },
   },
   i18n: {
-    deleteModalContent: s__(
-      'PackageRegistry|You are about to delete %{name}, this operation is irreversible, are you sure?',
-    ),
-    modalAction: s__('PackageRegistry|Delete package'),
+    deleteModalContent: s__('PackageRegistry|You are about to delete %{name}, are you sure?'),
+    modalTitle: s__('PackageRegistry|Delete package'),
+    modalAction: s__('PackageRegistry|Permanently delete'),
     errorMessageBodyAlert: s__(
       'PackageRegistry|There was a timeout and the package was not published. Delete this package and try again.',
     ),
@@ -172,14 +171,14 @@ export default {
 
       <gl-modal
         v-model="showDeleteModal"
-        modal-id="confirm-delete-pacakge"
+        modal-id="confirm-delete-package"
         size="sm"
         :action-primary="deleteModalActionPrimaryProps"
         :action-cancel="deleteModalActionCancelProps"
         @ok="deleteItemConfirmation"
         @cancel="deleteItemCanceled"
       >
-        <template #modal-title>{{ $options.i18n.modalAction }}</template>
+        <template #modal-title>{{ $options.i18n.modalTitle }}</template>
         <gl-sprintf :message="$options.i18n.deleteModalContent">
           <template #name>
             <strong>{{ deletePackageName }}</strong>
diff --git a/app/assets/javascripts/packages_and_registries/package_registry/pages/details.vue b/app/assets/javascripts/packages_and_registries/package_registry/pages/details.vue
index 0225beefa13..e5420dbdccf 100644
--- a/app/assets/javascripts/packages_and_registries/package_registry/pages/details.vue
+++ b/app/assets/javascripts/packages_and_registries/package_registry/pages/details.vue
@@ -263,7 +263,7 @@ export default {
   },
   modal: {
     packageDeletePrimaryAction: {
-      text: __('Delete'),
+      text: s__('PackageRegistry|Permanently delete'),
       attributes: [
         { variant: 'danger' },
         { category: 'primary' },
diff --git a/app/controllers/projects/deploy_keys_controller.rb b/app/controllers/projects/deploy_keys_controller.rb
index 96afe9dbb9f..22a42d22914 100644
--- a/app/controllers/projects/deploy_keys_controller.rb
+++ b/app/controllers/projects/deploy_keys_controller.rb
@@ -27,11 +27,9 @@ class Projects::DeployKeysController < Projects::ApplicationController
   end
 
   def create
-    @key = DeployKeys::CreateService.new(current_user, create_params).execute(project: @project)
+    @key = DeployKeys::CreateService.new(current_user, create_params).execute(project: @project).present
 
-    unless @key.valid?
-      flash[:alert] = @key.errors.full_messages.join(', ').html_safe
-    end
+    flash[:alert] = @key.humanized_error_message unless @key.valid?
 
     redirect_to_repository
   end
diff --git a/app/models/deploy_key.rb b/app/models/deploy_key.rb
index 94ac2405f61..2563fd484f1 100644
--- a/app/models/deploy_key.rb
+++ b/app/models/deploy_key.rb
@@ -4,6 +4,7 @@ class DeployKey < Key
   include FromUnion
   include IgnorableColumns
   include PolicyActor
+  include Presentable
 
   has_many :deploy_keys_projects, inverse_of: :deploy_key, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
   has_many :projects, through: :deploy_keys_projects
diff --git a/app/presenters/deploy_key_presenter.rb b/app/presenters/deploy_key_presenter.rb
new file mode 100644
index 00000000000..6f32487b6f6
--- /dev/null
+++ b/app/presenters/deploy_key_presenter.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class DeployKeyPresenter < KeyPresenter # rubocop:disable Gitlab/NamespacedClass
+  presents ::DeployKey, as: :deploy_key
+
+  def humanized_error_message
+    super(type: :deploy_key)
+  end
+end
diff --git a/app/presenters/key_presenter.rb b/app/presenters/key_presenter.rb
new file mode 100644
index 00000000000..e3eb5feedbf
--- /dev/null
+++ b/app/presenters/key_presenter.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class KeyPresenter < Gitlab::View::Presenter::Delegated # rubocop:disable Gitlab/NamespacedClass
+  presents ::Key, as: :key_object
+
+  def humanized_error_message(type: :key)
+    if !key_object.public_key.valid?
+      help_link = help_page_link(_('supported SSH public key.'), 'user/ssh', 'supported-ssh-key-types')
+
+      _('%{type} must be a %{help_link}').html_safe % { type: type.to_s.titleize, help_link: help_link }
+    else
+      key_object.errors.full_messages.join(', ').html_safe
+    end
+  end
+
+  private
+
+  def help_page_link(title, path, anchor)
+    ActionController::Base.helpers.link_to(title, help_page_path(path, anchor: anchor),
+      target: '_blank', rel: 'noopener noreferrer')
+  end
+end
diff --git a/app/uploaders/object_storage/cdn/google_cdn.rb b/app/uploaders/object_storage/cdn/google_cdn.rb
index d34ed8ac897..91bad1f8d6b 100644
--- a/app/uploaders/object_storage/cdn/google_cdn.rb
+++ b/app/uploaders/object_storage/cdn/google_cdn.rb
@@ -19,7 +19,7 @@ module ObjectStorage
 
         ip = IPAddr.new(request_ip)
 
-        return false if ip.private?
+        return false if ip.private? || ip.link_local? || ip.loopback?
 
         !GoogleIpCache.google_ip?(request_ip)
       end
diff --git a/config/feature_flags/development/group_analytics_dashboards_page.yml b/config/feature_flags/development/group_analytics_dashboards_page.yml
new file mode 100644
index 00000000000..8002ddb9204
--- /dev/null
+++ b/config/feature_flags/development/group_analytics_dashboards_page.yml
@@ -0,0 +1,8 @@
+---
+name: group_analytics_dashboards_page
+introduced_by_url: 'https://gitlab.com/gitlab-org/gitlab/-/merge_requests/98767'
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/375251
+milestone: '15.5'
+type: development
+group: group::optimize
+default_enabled: false
diff --git a/config/initializers/0_log_deprecations.rb b/config/initializers/0_log_deprecations.rb
index 5e6d18f0f60..b3ef391053e 100644
--- a/config/initializers/0_log_deprecations.rb
+++ b/config/initializers/0_log_deprecations.rb
@@ -26,11 +26,6 @@ if log_deprecations?
       Gitlab::DeprecationJsonLogger.info(message: warning.strip, source: 'ruby')
       # Returning :default means we continue emitting this to stderr as well.
       :default
-    end,
-    # This won't be needed when https://gitlab.com/gitlab-org/gitlab/-/issues/340602 is completed
-    /\A`Redis#exists\(key\)` will return an Integer in redis-rb 4\.3/ => lambda do |warning|
-      Gitlab::DeprecationJsonLogger.info(message: warning.strip, source: 'redis')
-      :default
     end
   }
 
diff --git a/config/initializers/7_redis.rb b/config/initializers/7_redis.rb
index fc6c29f9cd6..7773740fec4 100644
--- a/config/initializers/7_redis.rb
+++ b/config/initializers/7_redis.rb
@@ -4,12 +4,6 @@ require 'gitlab/redis'
 
 Redis.raise_deprecations = true unless Rails.env.production?
 
-# We set the instance variable directly to suppress warnings.
-# We cannot switch to the new behavior until we change all existing `redis.exists` calls to `redis.exists?`.
-# Some gems also need to be updated
-# https://gitlab.com/gitlab-org/gitlab/-/issues/340602
-Redis.instance_variable_set(:@exists_returns_integer, nil)
-
 Redis::Client.prepend(Gitlab::Instrumentation::RedisInterceptor)
 
 # Make sure we initialize a Redis connection pool before multi-threaded
diff --git a/doc/development/cicd/templates.md b/doc/development/cicd/templates.md
index d9f3e402ab8..4e0baf33ead 100644
--- a/doc/development/cicd/templates.md
+++ b/doc/development/cicd/templates.md
@@ -7,7 +7,7 @@ type: index, concepts, howto
 
 # Development guide for GitLab CI/CD templates **(FREE)**
 
-This document explains how to develop [GitLab CI/CD templates](../../ci/examples/index.md).
+This document explains how to develop [GitLab CI/CD templates](../../ci/examples/index.md#cicd-templates).
 
 ## Requirements for CI/CD templates
 
diff --git a/doc/user/operations_dashboard/index.md b/doc/user/operations_dashboard/index.md
index 6f610b059c9..0a65ea0f64d 100644
--- a/doc/user/operations_dashboard/index.md
+++ b/doc/user/operations_dashboard/index.md
@@ -13,11 +13,6 @@ To access the dashboard, on the top bar, select **Main menu > Operations**.
 
 ## Adding a project to the dashboard
 
-NOTE:
-For GitLab.com, you can add your project to the Operations Dashboard for free if
-your project is public. If your project is private, the group it belongs to must
-have a [GitLab Premium](https://about.gitlab.com/pricing/) plan.
-
 To add a project to the dashboard:
 
 1. Ensure your alerts populate the `gitlab_environment_name` label on the alerts you set up in Prometheus.
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 887c880baab..799a1b04ab9 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -1134,6 +1134,9 @@ msgstr ""
 msgid "%{total} warnings found: showing first %{warningsDisplayed}"
 msgstr ""
 
+msgid "%{type} must be a %{help_link}"
+msgstr ""
+
 msgid "%{type} only supports %{name} name"
 msgstr ""
 
@@ -4513,6 +4516,9 @@ msgstr ""
 msgid "Analytics"
 msgstr ""
 
+msgid "AnalyticsDashboards|Dashboards"
+msgstr ""
+
 msgid "Analyze your dependencies for known vulnerabilities."
 msgstr ""
 
@@ -28705,6 +28711,9 @@ msgstr[1] ""
 msgid "PackageRegistry|Package updated by commit %{link} on branch %{branch}, built by pipeline %{pipeline}, and published to the registry %{datetime}"
 msgstr ""
 
+msgid "PackageRegistry|Permanently delete"
+msgstr ""
+
 msgid "PackageRegistry|Permanently delete assets"
 msgstr ""
 
@@ -28816,7 +28825,7 @@ msgstr ""
 msgid "PackageRegistry|You are about to delete %{filename}. This is a destructive action that may render your package unusable. Are you sure?"
 msgstr ""
 
-msgid "PackageRegistry|You are about to delete %{name}, this operation is irreversible, are you sure?"
+msgid "PackageRegistry|You are about to delete %{name}, are you sure?"
 msgstr ""
 
 msgid "PackageRegistry|You are about to delete 1 asset. This operation is irreversible."
@@ -48579,6 +48588,9 @@ msgstr ""
 msgid "suggestPipeline|We’re adding a GitLab CI configuration file to add a pipeline to the project. You could create it manually, but we recommend that you start with a GitLab template that works out of the box."
 msgstr ""
 
+msgid "supported SSH public key."
+msgstr ""
+
 msgid "tag name"
 msgstr ""
 
diff --git a/spec/controllers/projects/deploy_keys_controller_spec.rb b/spec/controllers/projects/deploy_keys_controller_spec.rb
index 308146ce792..fd844808d81 100644
--- a/spec/controllers/projects/deploy_keys_controller_spec.rb
+++ b/spec/controllers/projects/deploy_keys_controller_spec.rb
@@ -72,13 +72,15 @@ RSpec.describe Projects::DeployKeysController do
   end
 
   describe 'POST create' do
+    let(:deploy_key_content) { attributes_for(:deploy_key)[:key] }
+
     def create_params(title = 'my-key')
       {
         namespace_id: project.namespace.path,
         project_id: project.path,
         deploy_key: {
           title: title,
-          key: attributes_for(:deploy_key)[:key],
+          key: deploy_key_content,
           deploy_keys_projects_attributes: { '0' => { can_push: '1' } }
         }
       }
@@ -96,13 +98,38 @@ RSpec.describe Projects::DeployKeysController do
       expect(response).to redirect_to(project_settings_repository_path(project, anchor: 'js-deploy-keys-settings'))
     end
 
-    context 'when the deploy key is invalid' do
+    context 'when the deploy key has an invalid title' do
       it 'shows an alert with the validations errors' do
         post :create, params: create_params(nil)
 
         expect(flash[:alert]).to eq("Title can't be blank, Deploy keys projects deploy key title can't be blank")
       end
     end
+
+    context 'when the deploy key is not supported SSH public key' do
+      let(:deploy_key_content) { 'bogus ssh public key' }
+
+      it 'shows an alert with a help link' do
+        post :create, params: create_params
+
+        expect(assigns(:key).errors.count).to be > 1
+        expect(flash[:alert]).to eq('Deploy Key must be a <a target="_blank" rel="noopener noreferrer" ' \
+          'href="/help/user/ssh#supported-ssh-key-types">supported SSH public key.</a>')
+      end
+    end
+
+    context 'when the deploy key already exists' do
+      before do
+        create(:deploy_key, title: 'my-key', key: deploy_key_content, projects: [project])
+      end
+
+      it 'shows an alert with the validations errors' do
+        post :create, params: create_params
+
+        expect(flash[:alert]).to eq("Fingerprint sha256 has already been taken, " \
+          "Deploy keys projects deploy key fingerprint sha256 has already been taken")
+      end
+    end
   end
 
   describe '/enable/:id' do
diff --git a/spec/features/projects/infrastructure_registry_spec.rb b/spec/features/projects/infrastructure_registry_spec.rb
index 27d0866bc69..aab1cec8762 100644
--- a/spec/features/projects/infrastructure_registry_spec.rb
+++ b/spec/features/projects/infrastructure_registry_spec.rb
@@ -57,7 +57,7 @@ RSpec.describe 'Infrastructure Registry' do
         it 'allows you to delete a module', :aggregate_failures do
           # this is still using the package copy in the UI too
           click_button('Remove package')
-          click_button('Delete package')
+          click_button('Permanently delete')
 
           expect(page).to have_content 'Package deleted successfully'
           expect(page).not_to have_content(terraform_module.name)
diff --git a/spec/features/projects/packages_spec.rb b/spec/features/projects/packages_spec.rb
index f518cc1fc63..bbe913cf1e5 100644
--- a/spec/features/projects/packages_spec.rb
+++ b/spec/features/projects/packages_spec.rb
@@ -49,7 +49,7 @@ RSpec.describe 'Packages' do
         it 'allows you to delete a package' do
           find('[data-testid="delete-dropdown"]').click
           find('[data-testid="action-delete"]').click
-          click_button('Delete package')
+          click_button('Permanently delete')
 
           expect(page).to have_content 'Package deleted successfully'
           expect(page).not_to have_content(package.name)
diff --git a/spec/initializers/0_log_deprecations_spec.rb b/spec/initializers/0_log_deprecations_spec.rb
index 4bb4c9237c9..d34be32f7d0 100644
--- a/spec/initializers/0_log_deprecations_spec.rb
+++ b/spec/initializers/0_log_deprecations_spec.rb
@@ -86,18 +86,6 @@ RSpec.describe '0_log_deprecations' do
         expect { warn('ABC gem is deprecated') }.to output.to_stderr
       end
     end
-
-    it 'logs Redis exists_returns_integer deprecation message' do
-      msg = "`Redis#exists(key)` will return an Integer in redis-rb 4.3. `exists?` returns a boolean, you " \
-            "should use it instead. To opt-in to the new behavior now you can set Redis.exists_returns_integer =  " \
-            "true. To disable this message and keep the current (boolean) behaviour of 'exists' you can set " \
-            "`Redis.exists_returns_integer = false`, but this option will be removed in 5.0.0. " \
-            "(#{::Kernel.caller(1, 1).first})\n"
-
-      expect(Gitlab::DeprecationJsonLogger).to receive(:info).with(message: msg.strip, source: 'redis')
-
-      expect { warn(msg) }.to output.to_stderr
-    end
   end
 
   describe 'Rails deprecations' do
diff --git a/spec/presenters/deploy_key_presenter_spec.rb b/spec/presenters/deploy_key_presenter_spec.rb
new file mode 100644
index 00000000000..9e50da12395
--- /dev/null
+++ b/spec/presenters/deploy_key_presenter_spec.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe DeployKeyPresenter do
+  let(:presenter) { described_class.new(deploy_key) }
+
+  describe '#humanized_error_message' do
+    subject { presenter.humanized_error_message }
+
+    before do
+      deploy_key.valid?
+    end
+
+    context 'when public key is unsupported' do
+      let(:deploy_key) { build(:deploy_key, key: 'a') }
+
+      it 'returns the custom error message' do
+        expect(subject).to eq('Deploy Key must be a <a target="_blank" rel="noopener noreferrer" ' \
+          'href="/help/user/ssh#supported-ssh-key-types">supported SSH public key.</a>')
+      end
+    end
+  end
+end
diff --git a/spec/presenters/key_presenter_spec.rb b/spec/presenters/key_presenter_spec.rb
new file mode 100644
index 00000000000..d5aa39d5933
--- /dev/null
+++ b/spec/presenters/key_presenter_spec.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe KeyPresenter do
+  let(:presenter) { described_class.new(key) }
+
+  describe '#humanized_error_message' do
+    subject { presenter.humanized_error_message }
+
+    before do
+      key.valid?
+    end
+
+    context 'when public key is unsupported' do
+      let(:key) { build(:key, key: 'a') }
+
+      it 'returns the custom error message' do
+        expect(subject).to eq('Key must be a <a target="_blank" rel="noopener noreferrer" ' \
+          'href="/help/user/ssh#supported-ssh-key-types">supported SSH public key.</a>')
+      end
+    end
+
+    context 'when key is expired' do
+      let(:key) { build(:key, :expired) }
+
+      it 'returns Active Record error message' do
+        expect(subject).to eq('Key has expired')
+      end
+    end
+  end
+end
diff --git a/spec/uploaders/object_storage/cdn/google_cdn_spec.rb b/spec/uploaders/object_storage/cdn/google_cdn_spec.rb
index 1403bbaa060..8e209dabddc 100644
--- a/spec/uploaders/object_storage/cdn/google_cdn_spec.rb
+++ b/spec/uploaders/object_storage/cdn/google_cdn_spec.rb
@@ -30,6 +30,8 @@ RSpec.describe ObjectStorage::CDN::GoogleCDN,
       '2600:1900:4180:0000:0000:0000:0000:0000' | false
       '10.10.1.5'                               | false
       'fc00:0000:0000:0000:0000:0000:0000:0000' | false
+      '127.0.0.1'                               | false
+      '169.254.0.0'                             | false
     end
 
     with_them do