diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index ad9e255e93b..6648b358557 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -52,14 +52,6 @@ Layout/ClosingParenthesisIndentation:
     - 'spec/support/helpers/stub_object_storage.rb'
     - 'spec/workers/remove_unreferenced_lfs_objects_worker_spec.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: leading, trailing
-Layout/DotPosition:
-  Exclude:
-    - 'app/models/concerns/relative_positioning.rb'
-
 # Offense count: 69
 # Cop supports --auto-correct.
 Layout/EmptyLinesAroundArguments:
@@ -100,12 +92,6 @@ Layout/IndentFirstParameter:
     - 'spec/support/helpers/repo_helpers.rb'
     - 'spec/support/helpers/stub_object_storage.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Layout/LeadingBlankLines:
-  Exclude:
-    - 'lib/tasks/yarn.rake'
-
 # Offense count: 54
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, IndentationWidth.
@@ -150,11 +136,6 @@ Layout/SpaceInsideBlockBraces:
 Layout/SpaceInsideParens:
   Enabled: false
 
-# Offense count: 1
-Lint/DisjunctiveAssignmentInConstructor:
-  Exclude:
-    - 'app/models/uploads/base.rb'
-
 # Offense count: 19
 Lint/DuplicateMethods:
   Exclude:
@@ -177,21 +158,6 @@ Lint/DuplicateMethods:
 Lint/MissingCopEnableDirective:
   Enabled: false
 
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: Whitelist.
-# Whitelist: present?, blank?, presence, try, try!
-Lint/SafeNavigationConsistency:
-  Exclude:
-    - 'lib/gitlab/gpg/commit.rb'
-
-# Offense count: 2
-# Cop supports --auto-correct.
-Lint/ToJSON:
-  Exclude:
-    - 'lib/gitlab/cycle_analytics/usage_data.rb'
-    - 'lib/gitlab/template/base_template.rb'
-
 # Offense count: 6
 Lint/UriEscapeUnescape:
   Exclude:
@@ -200,12 +166,6 @@ Lint/UriEscapeUnescape:
     - 'spec/lib/google_api/auth_spec.rb'
     - 'spec/requests/api/files_spec.rb'
 
-# Offense count: 1
-# Configuration parameters: CheckForMethodsWithNoSideEffects.
-Lint/Void:
-  Exclude:
-    - 'lib/gitlab/git/diff_collection.rb'
-
 # Offense count: 165
 # Cop supports --auto-correct.
 # Configuration parameters: AutoCorrect, AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
@@ -284,12 +244,6 @@ RSpec/LetBeforeExamples:
     - 'spec/rubocop/cop/migration/update_column_in_batches_spec.rb'
     - 'spec/serializers/pipeline_details_entity_spec.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-RSpec/MultipleSubjects:
-  Exclude:
-    - 'spec/services/merge_requests/create_from_issue_service_spec.rb'
-
 # Offense count: 2018
 # Cop supports --auto-correct.
 # Configuration parameters: Strict, EnforcedStyle, AllowedExplicitMatchers.
@@ -319,12 +273,6 @@ RSpec/ScatteredSetup:
     - 'spec/requests/api/jobs_spec.rb'
     - 'spec/services/projects/create_service_spec.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-RSpec/SharedContext:
-  Exclude:
-    - 'spec/features/admin/admin_groups_spec.rb'
-
 # Offense count: 4
 RSpec/VoidExpect:
   Exclude:
@@ -348,12 +296,6 @@ Rails/ApplicationController:
     - 'spec/controllers/concerns/continue_params_spec.rb'
     - 'spec/lib/marginalia_spec.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Rails/ApplicationMailer:
-  Exclude:
-    - 'app/mailers/base_mailer.rb'
-
 # Offense count: 8
 # Cop supports --auto-correct.
 Rails/BelongsTo:
@@ -414,14 +356,6 @@ Rails/LinkToBlank:
 Rails/RakeEnvironment:
   Enabled: false
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: Include.
-# Include: app/models/**/*.rb
-Rails/RedundantAllowNil:
-  Exclude:
-    - 'app/models/application_setting.rb'
-
 # Offense count: 868
 # Configuration parameters: Blacklist, Whitelist.
 # Blacklist: decrement!, decrement_counter, increment!, increment_counter, toggle!, touch, update_all, update_attribute, update_column, update_columns, update_counters
@@ -457,12 +391,6 @@ Style/CommentedKeyword:
     - 'lib/tasks/gitlab/backup.rake'
     - 'spec/tasks/gitlab/backup_rake_spec.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/Dir:
-  Exclude:
-    - 'qa/qa.rb'
-
 # Offense count: 6
 # Cop supports --auto-correct.
 Style/EachWithObject:
@@ -591,13 +519,6 @@ Style/NumericLiteralPrefix:
 Style/NumericPredicate:
   Enabled: false
 
-# Offense count: 2
-# Cop supports --auto-correct.
-Style/OrAssignment:
-  Exclude:
-    - 'lib/api/commit_statuses.rb'
-    - 'lib/gitlab/project_transfer.rb'
-
 # Offense count: 106
 # Cop supports --auto-correct.
 Style/ParallelAssignment:
@@ -632,12 +553,6 @@ Style/PerlBackrefs:
 Style/RaiseArgs:
   Enabled: false
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/RedundantConditional:
-  Exclude:
-    - 'lib/system_check/helpers.rb'
-
 # Offense count: 221
 # Cop supports --auto-correct.
 Style/RedundantFreeze:
@@ -704,12 +619,6 @@ Style/SingleLineMethods:
 Style/SpecialGlobalVars:
   EnforcedStyle: use_perl_names
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/StderrPuts:
-  Exclude:
-    - 'config/initializers/rspec_profiling.rb'
-
 # Offense count: 75
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.
@@ -736,30 +645,6 @@ Style/TernaryParentheses:
     - 'spec/requests/api/pipeline_schedules_spec.rb'
     - 'spec/support/capybara.rb'
 
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyleForMultiline.
-# SupportedStylesForMultiline: comma, consistent_comma, no_comma
-Style/TrailingCommaInArrayLiteral:
-  Exclude:
-    - 'ee/spec/models/project_spec.rb'
-    - 'spec/lib/gitlab/metrics/dashboard/processor_spec.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyleForMultiline.
-# SupportedStylesForMultiline: comma, consistent_comma, no_comma
-Style/TrailingCommaInHashLiteral:
-  Exclude:
-    - 'lib/gitlab/ci/ansi2html.rb'
-
-# Offense count: 2
-# Cop supports --auto-correct.
-Style/UnlessElse:
-  Exclude:
-    - 'lib/backup/manager.rb'
-    - 'lib/gitlab/project_search_results.rb'
-
 # Offense count: 8
 # Cop supports --auto-correct.
 Style/UnneededCondition:
@@ -776,13 +661,6 @@ Style/UnneededCondition:
 Style/UnneededInterpolation:
   Enabled: false
 
-# Offense count: 2
-# Cop supports --auto-correct.
-Style/UnneededSort:
-  Exclude:
-    - 'app/models/concerns/resolvable_discussion.rb'
-    - 'lib/gitlab/highlight.rb'
-
 RSpec/ReceiveCounts:
   Exclude:
     - 'ee/spec/models/broadcast_message_spec.rb'
@@ -907,4 +785,4 @@ RSpec/ContextMethod:
     - 'spec/services/projects/open_issues_count_service_spec.rb'
     - 'spec/services/quick_actions/interpret_service_spec.rb'
     - 'spec/support/shared_examples/services/boards/issues_list_service_shared_examples.rb'
-    - 'spec/uploaders/namespace_file_uploader_spec.rb'
\ No newline at end of file
+    - 'spec/uploaders/namespace_file_uploader_spec.rb'
diff --git a/app/assets/javascripts/monitoring/components/dashboard.vue b/app/assets/javascripts/monitoring/components/dashboard.vue
index 9b9c380c9af..c34623cf858 100644
--- a/app/assets/javascripts/monitoring/components/dashboard.vue
+++ b/app/assets/javascripts/monitoring/components/dashboard.vue
@@ -132,11 +132,6 @@ export default {
       type: String,
       required: true,
     },
-    environmentsEndpoint: {
-      type: String,
-      required: false,
-      default: '',
-    },
     currentEnvironmentName: {
       type: String,
       required: true,
@@ -218,9 +213,7 @@ export default {
     ]),
     ...mapGetters('monitoringDashboard', ['getMetricStates', 'filteredEnvironments']),
     firstDashboard() {
-      return this.environmentsEndpoint.length > 0 && this.allDashboards.length > 0
-        ? this.allDashboards[0]
-        : {};
+      return this.allDashboards.length > 0 ? this.allDashboards[0] : {};
     },
     selectedDashboard() {
       return this.allDashboards.find(d => d.path === this.currentDashboard) || this.firstDashboard;
@@ -246,7 +239,6 @@ export default {
   created() {
     this.setEndpoints({
       metricsEndpoint: this.metricsEndpoint,
-      environmentsEndpoint: this.environmentsEndpoint,
       deploymentsEndpoint: this.deploymentsEndpoint,
       dashboardEndpoint: this.dashboardEndpoint,
       dashboardsEndpoint: this.dashboardsEndpoint,
diff --git a/app/assets/javascripts/monitoring/stores/mutations.js b/app/assets/javascripts/monitoring/stores/mutations.js
index e14425d7c6c..f0390bfc636 100644
--- a/app/assets/javascripts/monitoring/stores/mutations.js
+++ b/app/assets/javascripts/monitoring/stores/mutations.js
@@ -172,7 +172,6 @@ export default {
 
   [types.SET_ENDPOINTS](state, endpoints) {
     state.metricsEndpoint = endpoints.metricsEndpoint;
-    state.environmentsEndpoint = endpoints.environmentsEndpoint;
     state.deploymentsEndpoint = endpoints.deploymentsEndpoint;
     state.dashboardEndpoint = endpoints.dashboardEndpoint;
     state.dashboardsEndpoint = endpoints.dashboardsEndpoint;
diff --git a/app/assets/javascripts/monitoring/stores/state.js b/app/assets/javascripts/monitoring/stores/state.js
index 2c6758dfce2..2a2a7c9c88d 100644
--- a/app/assets/javascripts/monitoring/stores/state.js
+++ b/app/assets/javascripts/monitoring/stores/state.js
@@ -2,7 +2,6 @@ import invalidUrl from '~/lib/utils/invalid_url';
 
 export default () => ({
   metricsEndpoint: null,
-  environmentsEndpoint: null,
   deploymentsEndpoint: null,
   dashboardEndpoint: invalidUrl,
   emptyState: 'gettingStarted',
diff --git a/app/assets/javascripts/serverless/components/url.vue b/app/assets/javascripts/serverless/components/url.vue
index 5e30c8d614e..d6de5e56a5c 100644
--- a/app/assets/javascripts/serverless/components/url.vue
+++ b/app/assets/javascripts/serverless/components/url.vue
@@ -1,12 +1,8 @@
 <script>
-import { GlButton } from '@gitlab/ui';
 import ClipboardButton from '../../vue_shared/components/clipboard_button.vue';
-import Icon from '~/vue_shared/components/icon.vue';
 
 export default {
   components: {
-    Icon,
-    GlButton,
     ClipboardButton,
   },
   props: {
@@ -26,13 +22,5 @@ export default {
       :title="s__('ServerlessURL|Copy URL')"
       class="input-group-text js-clipboard-btn"
     />
-    <gl-button
-      :href="uri"
-      target="_blank"
-      rel="noopener noreferrer nofollow"
-      class="input-group-text btn btn-default"
-    >
-      <icon name="external-link" />
-    </gl-button>
   </div>
 </template>
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/states/ready_to_merge.vue b/app/assets/javascripts/vue_merge_request_widget/components/states/ready_to_merge.vue
index d230ac566de..66167a0d748 100644
--- a/app/assets/javascripts/vue_merge_request_widget/components/states/ready_to_merge.vue
+++ b/app/assets/javascripts/vue_merge_request_widget/components/states/ready_to_merge.vue
@@ -146,9 +146,15 @@ export default {
         auto_merge_strategy: useAutoMerge ? this.mr.preferredAutoMergeStrategy : undefined,
         should_remove_source_branch: this.removeSourceBranch === true,
         squash: this.squashBeforeMerge,
-        squash_commit_message: this.squashCommitMessage,
       };
 
+      // If users can't alter the squash message (e.g. for 1-commit merge requests),
+      // we shouldn't send the commit message because that would make the backend
+      // do unnecessary work.
+      if (this.shouldShowSquashBeforeMerge) {
+        options.squash_commit_message = this.squashCommitMessage;
+      }
+
       this.isMakingRequest = true;
       this.service
         .merge(options)
diff --git a/app/controllers/dashboard/projects_controller.rb b/app/controllers/dashboard/projects_controller.rb
index 9659d7719b9..d5ccec28fdd 100644
--- a/app/controllers/dashboard/projects_controller.rb
+++ b/app/controllers/dashboard/projects_controller.rb
@@ -66,6 +66,8 @@ class Dashboard::ProjectsController < Dashboard::ApplicationController
     @total_user_projects_count = ProjectsFinder.new(params: { non_public: true }, current_user: current_user).execute
     @total_starred_projects_count = ProjectsFinder.new(params: { starred: true }, current_user: current_user).execute
 
+    finder_params[:use_cte] = Feature.enabled?(:use_cte_for_projects_finder, default_enabled: true)
+
     projects = ProjectsFinder
                 .new(params: finder_params, current_user: current_user)
                 .execute
diff --git a/app/finders/projects_finder.rb b/app/finders/projects_finder.rb
index ac18c17dc61..7cac8deea07 100644
--- a/app/finders/projects_finder.rb
+++ b/app/finders/projects_finder.rb
@@ -44,6 +44,8 @@ class ProjectsFinder < UnionFinder
         init_collection
       end
 
+    use_cte = params.delete(:use_cte)
+    collection = Project.wrap_authorized_projects_with_cte(collection) if use_cte
     collection = filter_projects(collection)
     sort(collection)
   end
@@ -177,7 +179,7 @@ class ProjectsFinder < UnionFinder
   end
 
   def sort(items)
-    params[:sort].present? ? items.sort_by_attribute(params[:sort]) : items.order_id_desc
+    params[:sort].present? ? items.sort_by_attribute(params[:sort]) : items.projects_order_id_desc
   end
 
   def by_archived(projects)
diff --git a/app/helpers/environments_helper.rb b/app/helpers/environments_helper.rb
index 993c18f9229..579a57a27de 100644
--- a/app/helpers/environments_helper.rb
+++ b/app/helpers/environments_helper.rb
@@ -33,7 +33,6 @@ module EnvironmentsHelper
       "dashboard-endpoint" => metrics_dashboard_project_environment_path(project, environment, format: :json),
       "deployments-endpoint" => project_environment_deployments_path(project, environment, format: :json),
       "default-branch" => project.default_branch,
-      "environments-endpoint": project_environments_path(project, format: :json),
       "project-path" => project_path(project),
       "tags-path" => project_tags_path(project),
       "has-metrics" => "#{environment.has_metrics?}",
diff --git a/app/mailers/abuse_report_mailer.rb b/app/mailers/abuse_report_mailer.rb
index e0aa66e6de3..0f2f63b43f5 100644
--- a/app/mailers/abuse_report_mailer.rb
+++ b/app/mailers/abuse_report_mailer.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class AbuseReportMailer < BaseMailer
+class AbuseReportMailer < ApplicationMailer
   layout 'empty_mailer'
 
   helper EmailsHelper
diff --git a/app/mailers/base_mailer.rb b/app/mailers/application_mailer.rb
similarity index 95%
rename from app/mailers/base_mailer.rb
rename to app/mailers/application_mailer.rb
index 5fd209c4761..e0c95370072 100644
--- a/app/mailers/base_mailer.rb
+++ b/app/mailers/application_mailer.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class BaseMailer < ActionMailer::Base
+class ApplicationMailer < ActionMailer::Base
   around_action :render_with_default_locale
 
   helper ApplicationHelper
diff --git a/app/mailers/email_rejection_mailer.rb b/app/mailers/email_rejection_mailer.rb
index d743533b1bc..25721658285 100644
--- a/app/mailers/email_rejection_mailer.rb
+++ b/app/mailers/email_rejection_mailer.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class EmailRejectionMailer < BaseMailer
+class EmailRejectionMailer < ApplicationMailer
   layout 'empty_mailer'
 
   helper EmailsHelper
diff --git a/app/mailers/notify.rb b/app/mailers/notify.rb
index 92939136de2..49eacc44519 100644
--- a/app/mailers/notify.rb
+++ b/app/mailers/notify.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class Notify < BaseMailer
+class Notify < ApplicationMailer
   include ActionDispatch::Routing::PolymorphicRoutes
   include GitlabRoutingHelper
   include EmailsHelper
diff --git a/app/mailers/repository_check_mailer.rb b/app/mailers/repository_check_mailer.rb
index aa56ba1828b..b8f990f26c8 100644
--- a/app/mailers/repository_check_mailer.rb
+++ b/app/mailers/repository_check_mailer.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class RepositoryCheckMailer < BaseMailer
+class RepositoryCheckMailer < ApplicationMailer
   # rubocop: disable CodeReuse/ActiveRecord
   layout 'empty_mailer'
 
diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 10d15e84b8d..0bea5d7b399 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -142,7 +142,7 @@ class ApplicationSetting < ApplicationRecord
             if: :auto_devops_enabled?
 
   validates :enabled_git_access_protocol,
-            inclusion: { in: %w(ssh http), allow_blank: true, allow_nil: true }
+            inclusion: { in: %w(ssh http), allow_blank: true }
 
   validates :domain_blacklist,
             presence: { message: 'Domain blacklist cannot be empty if Blacklist is enabled.' },
diff --git a/app/models/clusters/applications/elastic_stack.rb b/app/models/clusters/applications/elastic_stack.rb
index e86a4597ed8..de7d3ab3fdb 100644
--- a/app/models/clusters/applications/elastic_stack.rb
+++ b/app/models/clusters/applications/elastic_stack.rb
@@ -16,7 +16,7 @@ module Clusters
       include ::Gitlab::Utils::StrongMemoize
 
       include IgnorableColumns
-      ignore_column :kibana_hostname, remove_with: '12.8', remove_after: '2020-01-22'
+      ignore_column :kibana_hostname, remove_with: '12.9', remove_after: '2020-02-22'
 
       default_value_for :version, VERSION
 
diff --git a/app/models/concerns/relative_positioning.rb b/app/models/concerns/relative_positioning.rb
index b645cf71443..1653ecdb305 100644
--- a/app/models/concerns/relative_positioning.rb
+++ b/app/models/concerns/relative_positioning.rb
@@ -237,8 +237,7 @@ module RelativePositioning
 
     relation
       .pluck(self.class.relative_positioning_parent_column, Arel.sql("#{calculation}(relative_position) AS position"))
-      .first&.
-      last
+      .first&.last
   end
 
   def scoped_items
diff --git a/app/models/concerns/resolvable_discussion.rb b/app/models/concerns/resolvable_discussion.rb
index c0490af2453..5d78eea7fca 100644
--- a/app/models/concerns/resolvable_discussion.rb
+++ b/app/models/concerns/resolvable_discussion.rb
@@ -63,7 +63,7 @@ module ResolvableDiscussion
     return unless resolved?
 
     strong_memoize(:last_resolved_note) do
-      resolved_notes.sort_by(&:resolved_at).last
+      resolved_notes.max_by(&:resolved_at)
     end
   end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index a51dd3c1048..b2de2b32ae0 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -397,6 +397,8 @@ class Project < ApplicationRecord
   scope :sorted_by_stars_desc, -> { reorder(star_count: :desc) }
   scope :sorted_by_stars_asc, -> { reorder(star_count: :asc) }
   scope :sorted_by_name_asc_limited, ->(limit) { reorder(name: :asc).limit(limit) }
+  # Sometimes queries (e.g. using CTEs) require explicit disambiguation with table name
+  scope :projects_order_id_desc, -> { reorder("#{table_name}.id DESC") }
 
   scope :in_namespace, ->(namespace_ids) { where(namespace_id: namespace_ids) }
   scope :personal, ->(user) { where(namespace_id: user.namespace_id) }
@@ -543,6 +545,11 @@ class Project < ApplicationRecord
       )
   end
 
+  def self.wrap_authorized_projects_with_cte(collection)
+    cte = Gitlab::SQL::CTE.new(:authorized_projects, collection)
+    Project.with(cte.to_arel).from(cte.alias_to(Project.arel_table))
+  end
+
   scope :active, -> { joins(:issues, :notes, :merge_requests).order('issues.created_at, notes.created_at, merge_requests.created_at DESC') }
   scope :abandoned, -> { where('projects.last_activity_at < ?', 6.months.ago) }
 
diff --git a/app/models/uploads/base.rb b/app/models/uploads/base.rb
index 29f376670da..442ed733566 100644
--- a/app/models/uploads/base.rb
+++ b/app/models/uploads/base.rb
@@ -7,7 +7,7 @@ module Uploads
     attr_reader :logger
 
     def initialize(logger: nil)
-      @logger ||= Rails.logger # rubocop:disable Gitlab/RailsLogger
+      @logger = Rails.logger # rubocop:disable Gitlab/RailsLogger
     end
 
     def delete_keys_async(keys_to_delete)
diff --git a/app/views/clusters/clusters/show.html.haml b/app/views/clusters/clusters/show.html.haml
index 4b295cd022d..59ce28d2d26 100644
--- a/app/views/clusters/clusters/show.html.haml
+++ b/app/views/clusters/clusters/show.html.haml
@@ -29,7 +29,7 @@
   pre_installed_knative: @cluster.knative_pre_installed? ? 'true': 'false',
   help_path: help_page_path('user/project/clusters/index.md', anchor: 'installing-applications'),
   ingress_help_path: help_page_path('user/project/clusters/index.md', anchor: 'getting-the-external-endpoint'),
-  ingress_dns_help_path: help_page_path('user/project/clusters/index.md', anchor: 'manually-determining-the-external-endpoint'),
+  ingress_dns_help_path: help_page_path('user/clusters/applications.md', anchor: 'pointing-your-dns-at-the-external-endpoint'),
   ingress_mod_security_help_path: help_page_path('user/clusters/applications.md', anchor: 'web-application-firewall-modsecurity'),
   environments_help_path: help_page_path('ci/environments', anchor: 'defining-environments'),
   clusters_help_path: help_page_path('user/project/clusters/index.md', anchor: 'deploying-to-a-kubernetes-cluster'),
diff --git a/changelogs/unreleased/198938-fix-invalid-issue-tracker-data.yml b/changelogs/unreleased/198938-fix-invalid-issue-tracker-data.yml
new file mode 100644
index 00000000000..36bf6e3aa26
--- /dev/null
+++ b/changelogs/unreleased/198938-fix-invalid-issue-tracker-data.yml
@@ -0,0 +1,5 @@
+---
+title: Remove invalid data from issue_tracker_data table
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/38297-knative-domain-name-endpoint-section-links-to-invalid-doc.yml b/changelogs/unreleased/38297-knative-domain-name-endpoint-section-links-to-invalid-doc.yml
new file mode 100644
index 00000000000..c61bf97a596
--- /dev/null
+++ b/changelogs/unreleased/38297-knative-domain-name-endpoint-section-links-to-invalid-doc.yml
@@ -0,0 +1,5 @@
+---
+title: Fix broken link to documentation
+merge_request: 23715
+author:
+type: fixed
diff --git a/changelogs/unreleased/ak-migration-cleanu.yml b/changelogs/unreleased/ak-migration-cleanu.yml
new file mode 100644
index 00000000000..7460730e32a
--- /dev/null
+++ b/changelogs/unreleased/ak-migration-cleanu.yml
@@ -0,0 +1,5 @@
+---
+title: Remove kibana_hostname column from clusters_applications_elastic_stacks table
+merge_request: 23503
+author:
+type: changed
diff --git a/changelogs/unreleased/selective-sync-params-create-geo.yml b/changelogs/unreleased/selective-sync-params-create-geo.yml
new file mode 100644
index 00000000000..335a2f46a14
--- /dev/null
+++ b/changelogs/unreleased/selective-sync-params-create-geo.yml
@@ -0,0 +1,5 @@
+---
+title: Add selective sync support to Geo Nodes API create endpoint
+merge_request: 23729
+author: Rajendra Kadam
+type: added
diff --git a/changelogs/unreleased/sh-fix-squash-one-commit.yml b/changelogs/unreleased/sh-fix-squash-one-commit.yml
new file mode 100644
index 00000000000..3492668b964
--- /dev/null
+++ b/changelogs/unreleased/sh-fix-squash-one-commit.yml
@@ -0,0 +1,5 @@
+---
+title: Skip squashing with only one commit in a merge request
+merge_request: 23744
+author:
+type: fixed
diff --git a/changelogs/unreleased/sh-use-cte-for-projects-finder.yml b/changelogs/unreleased/sh-use-cte-for-projects-finder.yml
new file mode 100644
index 00000000000..8708966b8da
--- /dev/null
+++ b/changelogs/unreleased/sh-use-cte-for-projects-finder.yml
@@ -0,0 +1,5 @@
+---
+title: Use CTE optimization fence for loading projects in dashboard
+merge_request: 23754
+author:
+type: performance
diff --git a/config/initializers/rspec_profiling.rb b/config/initializers/rspec_profiling.rb
index 9f29e48a63e..eb0e239c18c 100644
--- a/config/initializers/rspec_profiling.rb
+++ b/config/initializers/rspec_profiling.rb
@@ -46,7 +46,7 @@ module RspecProfilingExt
     rescue => err
       return if @already_logged_example_finished_error # rubocop:disable Gitlab/ModuleWithInstanceVariables
 
-      $stderr.puts "rspec_profiling couldn't collect an example: #{err}. Further warnings suppressed."
+      warn "rspec_profiling couldn't collect an example: #{err}. Further warnings suppressed."
       @already_logged_example_finished_error = true # rubocop:disable Gitlab/ModuleWithInstanceVariables
     end
 
diff --git a/db/post_migrate/20200122144759_drop_kibana_column.rb b/db/post_migrate/20200122144759_drop_kibana_column.rb
new file mode 100644
index 00000000000..ce94ca2dc27
--- /dev/null
+++ b/db/post_migrate/20200122144759_drop_kibana_column.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class DropKibanaColumn < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  def change
+    remove_column :clusters_applications_elastic_stacks, :kibana_hostname, :string, limit: 255
+  end
+end
diff --git a/db/post_migrate/20200127090233_remove_invalid_issue_tracker_data.rb b/db/post_migrate/20200127090233_remove_invalid_issue_tracker_data.rb
new file mode 100644
index 00000000000..6d64dd3d0d1
--- /dev/null
+++ b/db/post_migrate/20200127090233_remove_invalid_issue_tracker_data.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class RemoveInvalidIssueTrackerData < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    sql = "DELETE FROM issue_tracker_data WHERE \
+        (length(encrypted_issues_url) > 0 AND encrypted_issues_url_iv IS NULL) \
+        OR (length(encrypted_new_issue_url) > 0 AND encrypted_new_issue_url_iv IS NULL) \
+        OR (length(encrypted_project_url) > 0 AND encrypted_project_url_iv IS NULL)"
+
+    execute(sql)
+  end
+
+  def down
+    # We need to figure out why migrating data to issue_tracker_data table
+    # failed and then can recreate the data
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 8f8a44f1519..e4ec6e55fa6 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_01_24_053531) do
+ActiveRecord::Schema.define(version: 2020_01_27_090233) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_trgm"
@@ -1150,7 +1150,6 @@ ActiveRecord::Schema.define(version: 2020_01_24_053531) do
     t.bigint "cluster_id", null: false
     t.integer "status", null: false
     t.string "version", limit: 255, null: false
-    t.string "kibana_hostname", limit: 255
     t.text "status_reason"
     t.index ["cluster_id"], name: "index_clusters_applications_elastic_stacks_on_cluster_id", unique: true
   end
diff --git a/doc/api/geo_nodes.md b/doc/api/geo_nodes.md
index 47fa67dd3f9..18c4dd1bc8f 100644
--- a/doc/api/geo_nodes.md
+++ b/doc/api/geo_nodes.md
@@ -30,6 +30,10 @@ curl --header "PRIVATE-TOKEN: <your_access_token>" https://primary.example.com/a
 | `verification_max_capacity` | integer | no       | Control the maximum concurrency of repository verification for this node. Defaults to 100. |
 | `container_repositories_max_capacity` | integer  | no | Control the maximum concurrency of container repository sync for this node. Defaults to 10. |
 | `sync_object_storage`       | boolean | no       | Flag indicating if the secondary Geo node will replicate blobs in Object Storage. Defaults to false. |
+| `selective_sync_type`       | string  | no       | Limit syncing to only specific groups or shards. Valid values: `"namespaces"`, `"shards"`, or `null`. |
+| `selective_sync_shards`     | array   | no       | The repository storage for the projects synced if `selective_sync_type` == `shards`. |
+| `selective_sync_namespace_ids` | array | no      | The IDs of groups that should be synced, if `selective_sync_type` == `namespaces`. |
+| `minimum_reverification_interval` | integer | no | The interval (in days) in which the repository verification is valid. Once expired, it will be reverified. This has no effect when set on a secondary node. |
 
 Example response:
 
@@ -45,6 +49,10 @@ Example response:
   "files_max_capacity": 10,
   "repos_max_capacity": 25,
   "verification_max_capacity": 100,
+  "selective_sync_type": "namespaces",
+  "selective_sync_shards": [],
+  "selective_sync_namespace_ids": [1, 25],
+  "minimum_reverification_interval": 7,
   "container_repositories_max_capacity": 10,
   "sync_object_storage": false,
   "clone_protocol": "http",
diff --git a/lib/api/commit_statuses.rb b/lib/api/commit_statuses.rb
index 6e26ee309f0..2d5253fe9f1 100644
--- a/lib/api/commit_statuses.rb
+++ b/lib/api/commit_statuses.rb
@@ -76,14 +76,12 @@ module API
 
         name = params[:name] || params[:context] || 'default'
 
-        unless pipeline
-          pipeline = user_project.ci_pipelines.create!(
-            source: :external,
-            sha: commit.sha,
-            ref: ref,
-            user: current_user,
-            protected: user_project.protected_for?(ref))
-        end
+        pipeline ||= user_project.ci_pipelines.create!(
+          source: :external,
+          sha: commit.sha,
+          ref: ref,
+          user: current_user,
+          protected: user_project.protected_for?(ref))
 
         status = GenericCommitStatus.running_or_pending.find_or_initialize_by(
           project: user_project,
diff --git a/lib/backup/manager.rb b/lib/backup/manager.rb
index cb1f2fdcd17..2b6b10cf044 100644
--- a/lib/backup/manager.rb
+++ b/lib/backup/manager.rb
@@ -135,11 +135,11 @@ module Backup
 
         progress.print 'Unpacking backup ... '
 
-        unless Kernel.system(*%W(tar -xf #{tar_file}))
+        if Kernel.system(*%W(tar -xf #{tar_file}))
+          progress.puts 'done'.color(:green)
+        else
           progress.puts 'unpacking backup failed'.color(:red)
           exit 1
-        else
-          progress.puts 'done'.color(:green)
         end
 
         ENV["VERSION"] = "#{settings[:db_version]}" if settings[:db_version].to_i > 0
diff --git a/lib/gitlab/ci/ansi2html.rb b/lib/gitlab/ci/ansi2html.rb
index a737d5543ad..3a05feee156 100644
--- a/lib/gitlab/ci/ansi2html.rb
+++ b/lib/gitlab/ci/ansi2html.rb
@@ -15,7 +15,7 @@ module Gitlab
         4 => 'blue',
         5 => 'magenta',
         6 => 'cyan',
-        7 => 'white', # not that this is gray in the dark (aka default) color table
+        7 => 'white' # not that this is gray in the dark (aka default) color table
       }.freeze
 
       STYLE_SWITCHES = {
diff --git a/lib/gitlab/cycle_analytics/usage_data.rb b/lib/gitlab/cycle_analytics/usage_data.rb
index 644300caead..acfb641aeec 100644
--- a/lib/gitlab/cycle_analytics/usage_data.rb
+++ b/lib/gitlab/cycle_analytics/usage_data.rb
@@ -12,7 +12,7 @@ module Gitlab
         @options = { from: 7.days.ago }
       end
 
-      def to_json
+      def to_json(*)
         total = 0
 
         values =
diff --git a/lib/gitlab/git/diff_collection.rb b/lib/gitlab/git/diff_collection.rb
index b79e30bff78..46896961867 100644
--- a/lib/gitlab/git/diff_collection.rb
+++ b/lib/gitlab/git/diff_collection.rb
@@ -102,7 +102,7 @@ module Gitlab
       def populate!
         return if @populated
 
-        each { nil } # force a loop through all diffs
+        each {} # force a loop through all diffs
         nil
       end
 
diff --git a/lib/gitlab/gpg/commit.rb b/lib/gitlab/gpg/commit.rb
index dc71d0b427a..48b327a54e1 100644
--- a/lib/gitlab/gpg/commit.rb
+++ b/lib/gitlab/gpg/commit.rb
@@ -16,13 +16,13 @@ module Gitlab
 
       def signature_text
         strong_memoize(:signature_text) do
-          @signature_data&.itself && @signature_data[0]
+          @signature_data&.itself && @signature_data[0] # rubocop:disable Lint/SafeNavigationConsistency
         end
       end
 
       def signed_text
         strong_memoize(:signed_text) do
-          @signature_data&.itself && @signature_data[1]
+          @signature_data&.itself && @signature_data[1] # rubocop:disable Lint/SafeNavigationConsistency
         end
       end
 
diff --git a/lib/gitlab/highlight.rb b/lib/gitlab/highlight.rb
index 22b9a038768..07c43fa4832 100644
--- a/lib/gitlab/highlight.rb
+++ b/lib/gitlab/highlight.rb
@@ -32,7 +32,7 @@ module Gitlab
       @lexer ||= custom_language || begin
         Rouge::Lexer.guess(filename: @blob_name, source: @blob_content).new
       rescue Rouge::Guesser::Ambiguous => e
-        e.alternatives.sort_by(&:tag).first
+        e.alternatives.min_by(&:tag)
       end
     end
 
diff --git a/lib/gitlab/project_search_results.rb b/lib/gitlab/project_search_results.rb
index 2669adb8455..60a2efdd849 100644
--- a/lib/gitlab/project_search_results.rb
+++ b/lib/gitlab/project_search_results.rb
@@ -106,10 +106,10 @@ module Gitlab
 
       @wiki_blobs ||= begin
         if project.wiki_enabled? && query.present?
-          unless project.wiki.empty?
-            Gitlab::WikiFileFinder.new(project, repository_wiki_ref).find(query)
-          else
+          if project.wiki.empty?
             []
+          else
+            Gitlab::WikiFileFinder.new(project, repository_wiki_ref).find(query)
           end
         else
           []
diff --git a/lib/gitlab/project_transfer.rb b/lib/gitlab/project_transfer.rb
index d8f1d1e2316..f5a8aeff73c 100644
--- a/lib/gitlab/project_transfer.rb
+++ b/lib/gitlab/project_transfer.rb
@@ -32,7 +32,7 @@ module Gitlab
     private
 
     def move(path_was, path, base_dir = nil)
-      base_dir = root_dir unless base_dir
+      base_dir ||= root_dir
       from = File.join(base_dir, path_was)
       to = File.join(base_dir, path)
       FileUtils.mv(from, to)
diff --git a/lib/gitlab/template/base_template.rb b/lib/gitlab/template/base_template.rb
index 14c9a3e0389..50e09bdcdd6 100644
--- a/lib/gitlab/template/base_template.rb
+++ b/lib/gitlab/template/base_template.rb
@@ -33,7 +33,7 @@ module Gitlab
         self
       end
 
-      def to_json
+      def to_json(*)
         { key: key, name: name, content: content }
       end
 
diff --git a/lib/system_check/helpers.rb b/lib/system_check/helpers.rb
index 07d479848fe..8fbfe7af713 100644
--- a/lib/system_check/helpers.rb
+++ b/lib/system_check/helpers.rb
@@ -57,11 +57,7 @@ module SystemCheck
     end
 
     def should_sanitize?
-      if ENV['SANITIZE'] == 'true'
-        true
-      else
-        false
-      end
+      ENV['SANITIZE'] == 'true'
     end
 
     def omnibus_gitlab?
diff --git a/lib/tasks/yarn.rake b/lib/tasks/yarn.rake
index 32061ad4a57..667d850d2de 100644
--- a/lib/tasks/yarn.rake
+++ b/lib/tasks/yarn.rake
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 
 namespace :yarn do
   desc 'Ensure Yarn is installed'
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index dd18b627625..77765ab38dc 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -22014,9 +22014,6 @@ msgstr ""
 msgid "ciReport|%{linkStartTag}Learn more about codequality reports %{linkEndTag}"
 msgstr ""
 
-msgid "ciReport|%{namespace} is affected by %{vulnerability}."
-msgstr ""
-
 msgid "ciReport|%{remainingPackagesCount} more"
 msgstr ""
 
@@ -22075,9 +22072,6 @@ msgstr ""
 msgid "ciReport|%{reportType}: Loading resulted in an error"
 msgstr ""
 
-msgid "ciReport|%{vulnerability} in %{featurename}"
-msgstr ""
-
 msgid "ciReport|(errors when loading results)"
 msgstr ""
 
@@ -22234,15 +22228,6 @@ msgstr ""
 msgid "ciReport|There was an error reverting the dismissal. Please try again."
 msgstr ""
 
-msgid "ciReport|Upgrade %{name} from %{version} to %{fixed}."
-msgstr ""
-
-msgid "ciReport|Upgrade %{name} to %{fixed}."
-msgstr ""
-
-msgid "ciReport|Upgrade to %{fixed}."
-msgstr ""
-
 msgid "ciReport|Used by %{packagesString}"
 msgid_plural "ciReport|Used by %{packagesString}, and %{lastPackage}"
 msgstr[0] ""
diff --git a/package.json b/package.json
index 148f76b3fe8..7f25eb68caf 100644
--- a/package.json
+++ b/package.json
@@ -111,7 +111,6 @@
     "raw-loader": "^3.1.0",
     "sanitize-html": "^1.20.0",
     "select2": "3.5.2-browserify",
-    "sha1": "^1.1.1",
     "smooshpack": "^0.0.54",
     "sortablejs": "^1.10.0",
     "sql.js": "^0.4.0",
diff --git a/qa/qa.rb b/qa/qa.rb
index a0ce6caa3a9..08686aa8571 100644
--- a/qa/qa.rb
+++ b/qa/qa.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-$: << File.expand_path(File.dirname(__FILE__))
+$: << File.expand_path(__dir__)
 
 Encoding.default_external = 'UTF-8'
 
diff --git a/qa/qa/specs/features/browser_ui/6_release/deploy_key/clone_using_deploy_key_spec.rb b/qa/qa/specs/features/browser_ui/6_release/deploy_key/clone_using_deploy_key_spec.rb
index 19cd7d123c9..ca8b917d2c2 100644
--- a/qa/qa/specs/features/browser_ui/6_release/deploy_key/clone_using_deploy_key_spec.rb
+++ b/qa/qa/specs/features/browser_ui/6_release/deploy_key/clone_using_deploy_key_spec.rb
@@ -3,7 +3,7 @@
 require 'digest/sha1'
 
 module QA
-  context 'Release', :docker, quarantine: 'https://gitlab.com/gitlab-org/gitlab/issues/196047' do
+  context 'Release', :docker do
     describe 'Git clone using a deploy key' do
       before do
         Flow::Login.sign_in
diff --git a/spec/features/admin/admin_groups_spec.rb b/spec/features/admin/admin_groups_spec.rb
index 9a4889a0335..1d82650d11d 100644
--- a/spec/features/admin/admin_groups_spec.rb
+++ b/spec/features/admin/admin_groups_spec.rb
@@ -134,7 +134,7 @@ describe 'Admin Groups' do
   end
 
   describe 'add user into a group', :js do
-    shared_context 'adds user into a group' do
+    shared_examples 'adds user into a group' do
       it do
         visit admin_group_path(group)
 
diff --git a/spec/features/merge_requests/user_squashes_merge_request_spec.rb b/spec/features/merge_requests/user_squashes_merge_request_spec.rb
index 4115907d074..ce5ed76dc7a 100644
--- a/spec/features/merge_requests/user_squashes_merge_request_spec.rb
+++ b/spec/features/merge_requests/user_squashes_merge_request_spec.rb
@@ -6,6 +6,7 @@ describe 'User squashes a merge request', :js do
   let(:user) { create(:user) }
   let(:project) { create(:project, :repository) }
   let(:source_branch) { 'csv' }
+  let(:protected_source_branch) { false }
 
   let!(:original_head) { project.repository.commit('master') }
 
@@ -40,7 +41,7 @@ describe 'User squashes a merge request', :js do
   def accept_mr
     expect(page).to have_button('Merge')
 
-    uncheck 'Delete source branch'
+    uncheck 'Delete source branch' unless protected_source_branch
     click_on 'Merge'
   end
 
@@ -56,14 +57,34 @@ describe 'User squashes a merge request', :js do
   end
 
   context 'when the MR has only one commit' do
+    let(:source_branch) { 'master' }
+    let(:target_branch) { 'branch-merged' }
+    let(:protected_source_branch) { true }
+    let(:source_sha) { project.commit(source_branch).sha }
+    let(:target_sha) { project.commit(target_branch).sha }
+
     before do
-      merge_request = create(:merge_request, source_project: project, target_project: project, source_branch: 'master', target_branch: 'branch-merged')
+      merge_request = create(:merge_request, source_project: project, target_project: project, source_branch: source_branch, target_branch: target_branch, squash: true)
 
       visit project_merge_request_path(project, merge_request)
     end
 
-    it 'does not show the squash checkbox' do
+    it 'accepts the merge request without issuing a squash request', :sidekiq_inline do
+      expect_next_instance_of(Gitlab::GitalyClient::OperationService) do |instance|
+        expect(instance).not_to receive(:user_squash)
+      end
+
+      expect(project.repository.ancestor?(source_branch, target_branch)).to be_falsey
       expect(page).not_to have_field('squash')
+
+      accept_mr
+
+      expect(page).to have_content('Merged')
+
+      latest_target_commits = project.repository.commits_between(source_sha, target_sha).map(&:raw)
+
+      expect(latest_target_commits.count).to eq(1)
+      expect(project.repository.ancestor?(source_branch, target_branch)).to be_truthy
     end
   end
 
diff --git a/spec/finders/projects_finder_spec.rb b/spec/finders/projects_finder_spec.rb
index bf97e3cf7db..6a04ca0eb67 100644
--- a/spec/finders/projects_finder_spec.rb
+++ b/spec/finders/projects_finder_spec.rb
@@ -28,210 +28,227 @@ describe ProjectsFinder, :do_not_mock_admin_mode do
     let(:params) { {} }
     let(:current_user) { user }
     let(:project_ids_relation) { nil }
-    let(:finder) { described_class.new(params: params, current_user: current_user, project_ids_relation: project_ids_relation) }
+    let(:use_cte) { true }
+    let(:finder) { described_class.new(params: params.merge(use_cte: use_cte), current_user: current_user, project_ids_relation: project_ids_relation) }
 
     subject { finder.execute }
 
-    describe 'without a user' do
-      let(:current_user) { nil }
+    shared_examples 'ProjectFinder#execute examples' do
+      describe 'without a user' do
+        let(:current_user) { nil }
 
-      it { is_expected.to eq([public_project]) }
-    end
-
-    describe 'with a user' do
-      describe 'without private projects' do
-        it { is_expected.to match_array([public_project, internal_project]) }
+        it { is_expected.to eq([public_project]) }
       end
 
-      describe 'with private projects' do
+      describe 'with a user' do
+        describe 'without private projects' do
+          it { is_expected.to match_array([public_project, internal_project]) }
+        end
+
+        describe 'with private projects' do
+          before do
+            private_project.add_maintainer(user)
+          end
+
+          it { is_expected.to match_array([public_project, internal_project, private_project]) }
+        end
+      end
+
+      describe 'with project_ids_relation' do
+        let(:project_ids_relation) { Project.where(id: internal_project.id) }
+
+        it { is_expected.to eq([internal_project]) }
+      end
+
+      describe 'with id_after' do
+        context 'only returns projects with a project id greater than given' do
+          let(:params) { { id_after: internal_project.id }}
+
+          it { is_expected.to eq([public_project]) }
+        end
+      end
+
+      describe 'with id_before' do
+        context 'only returns projects with a project id less than given' do
+          let(:params) { { id_before: public_project.id }}
+
+          it { is_expected.to eq([internal_project]) }
+        end
+      end
+
+      describe 'with both id_before and id_after' do
+        context 'only returns projects with a project id less than given' do
+          let!(:projects) { create_list(:project, 5, :public) }
+          let(:params) { { id_after: projects.first.id, id_before: projects.last.id }}
+
+          it { is_expected.to contain_exactly(*projects[1..-2]) }
+        end
+      end
+
+      describe 'filter by visibility_level' do
         before do
           private_project.add_maintainer(user)
         end
 
-        it { is_expected.to match_array([public_project, internal_project, private_project]) }
+        context 'private' do
+          let(:params) { { visibility_level: Gitlab::VisibilityLevel::PRIVATE } }
+
+          it { is_expected.to eq([private_project]) }
+        end
+
+        context 'internal' do
+          let(:params) { { visibility_level: Gitlab::VisibilityLevel::INTERNAL } }
+
+          it { is_expected.to eq([internal_project]) }
+        end
+
+        context 'public' do
+          let(:params) { { visibility_level: Gitlab::VisibilityLevel::PUBLIC } }
+
+          it { is_expected.to eq([public_project]) }
+        end
       end
-    end
 
-    describe 'with project_ids_relation' do
-      let(:project_ids_relation) { Project.where(id: internal_project.id) }
+      describe 'filter by tags' do
+        before do
+          public_project.tag_list.add('foo')
+          public_project.save!
+        end
 
-      it { is_expected.to eq([internal_project]) }
-    end
-
-    describe 'with id_after' do
-      context 'only returns projects with a project id greater than given' do
-        let(:params) { { id_after: internal_project.id }}
+        let(:params) { { tag: 'foo' } }
 
         it { is_expected.to eq([public_project]) }
       end
-    end
 
-    describe 'with id_before' do
-      context 'only returns projects with a project id less than given' do
-        let(:params) { { id_before: public_project.id }}
+      describe 'filter by personal' do
+        let!(:personal_project) { create(:project, namespace: user.namespace) }
+        let(:params) { { personal: true } }
 
-        it { is_expected.to eq([internal_project]) }
-      end
-    end
-
-    describe 'with both id_before and id_after' do
-      context 'only returns projects with a project id less than given' do
-        let!(:projects) { create_list(:project, 5, :public) }
-        let(:params) { { id_after: projects.first.id, id_before: projects.last.id }}
-
-        it { is_expected.to contain_exactly(*projects[1..-2]) }
-      end
-    end
-
-    describe 'filter by visibility_level' do
-      before do
-        private_project.add_maintainer(user)
+        it { is_expected.to eq([personal_project]) }
       end
 
-      context 'private' do
-        let(:params) { { visibility_level: Gitlab::VisibilityLevel::PRIVATE } }
+      describe 'filter by search' do
+        let(:params) { { search: 'C' } }
+
+        it { is_expected.to eq([public_project]) }
+      end
+
+      describe 'filter by name for backward compatibility' do
+        let(:params) { { name: 'C' } }
+
+        it { is_expected.to eq([public_project]) }
+      end
+
+      describe 'filter by archived' do
+        let!(:archived_project) { create(:project, :public, :archived, name: 'E', path: 'E') }
+
+        context 'non_archived=true' do
+          let(:params) { { non_archived: true } }
+
+          it { is_expected.to match_array([public_project, internal_project]) }
+        end
+
+        context 'non_archived=false' do
+          let(:params) { { non_archived: false } }
+
+          it { is_expected.to match_array([public_project, internal_project, archived_project]) }
+        end
+
+        describe 'filter by archived only' do
+          let(:params) { { archived: 'only' } }
+
+          it { is_expected.to eq([archived_project]) }
+        end
+
+        describe 'filter by archived for backward compatibility' do
+          let(:params) { { archived: false } }
+
+          it { is_expected.to match_array([public_project, internal_project]) }
+        end
+      end
+
+      describe 'filter by trending' do
+        let!(:trending_project) { create(:trending_project, project: public_project) }
+        let(:params) { { trending: true } }
+
+        it { is_expected.to eq([public_project]) }
+      end
+
+      describe 'filter by owned' do
+        let(:params) { { owned: true } }
+        let!(:owned_project) { create(:project, :private, namespace: current_user.namespace) }
+
+        it { is_expected.to eq([owned_project]) }
+      end
+
+      describe 'filter by non_public' do
+        let(:params) { { non_public: true } }
+
+        before do
+          private_project.add_developer(current_user)
+        end
 
         it { is_expected.to eq([private_project]) }
       end
 
-      context 'internal' do
-        let(:params) { { visibility_level: Gitlab::VisibilityLevel::INTERNAL } }
+      describe 'filter by starred' do
+        let(:params) { { starred: true } }
 
-        it { is_expected.to eq([internal_project]) }
-      end
-
-      context 'public' do
-        let(:params) { { visibility_level: Gitlab::VisibilityLevel::PUBLIC } }
-
-        it { is_expected.to eq([public_project]) }
-      end
-    end
-
-    describe 'filter by tags' do
-      before do
-        public_project.tag_list.add('foo')
-        public_project.save!
-      end
-
-      let(:params) { { tag: 'foo' } }
-
-      it { is_expected.to eq([public_project]) }
-    end
-
-    describe 'filter by personal' do
-      let!(:personal_project) { create(:project, namespace: user.namespace) }
-      let(:params) { { personal: true } }
-
-      it { is_expected.to eq([personal_project]) }
-    end
-
-    describe 'filter by search' do
-      let(:params) { { search: 'C' } }
-
-      it { is_expected.to eq([public_project]) }
-    end
-
-    describe 'filter by name for backward compatibility' do
-      let(:params) { { name: 'C' } }
-
-      it { is_expected.to eq([public_project]) }
-    end
-
-    describe 'filter by archived' do
-      let!(:archived_project) { create(:project, :public, :archived, name: 'E', path: 'E') }
-
-      context 'non_archived=true' do
-        let(:params) { { non_archived: true } }
-
-        it { is_expected.to match_array([public_project, internal_project]) }
-      end
-
-      context 'non_archived=false' do
-        let(:params) { { non_archived: false } }
-
-        it { is_expected.to match_array([public_project, internal_project, archived_project]) }
-      end
-
-      describe 'filter by archived only' do
-        let(:params) { { archived: 'only' } }
-
-        it { is_expected.to eq([archived_project]) }
-      end
-
-      describe 'filter by archived for backward compatibility' do
-        let(:params) { { archived: false } }
-
-        it { is_expected.to match_array([public_project, internal_project]) }
-      end
-    end
-
-    describe 'filter by trending' do
-      let!(:trending_project) { create(:trending_project, project: public_project) }
-      let(:params) { { trending: true } }
-
-      it { is_expected.to eq([public_project]) }
-    end
-
-    describe 'filter by owned' do
-      let(:params) { { owned: true } }
-      let!(:owned_project) { create(:project, :private, namespace: current_user.namespace) }
-
-      it { is_expected.to eq([owned_project]) }
-    end
-
-    describe 'filter by non_public' do
-      let(:params) { { non_public: true } }
-
-      before do
-        private_project.add_developer(current_user)
-      end
-
-      it { is_expected.to eq([private_project]) }
-    end
-
-    describe 'filter by starred' do
-      let(:params) { { starred: true } }
-
-      before do
-        current_user.toggle_star(public_project)
-      end
-
-      it { is_expected.to eq([public_project]) }
-
-      it 'returns only projects the user has access to' do
-        current_user.toggle_star(private_project)
-
-        is_expected.to eq([public_project])
-      end
-    end
-
-    describe 'filter by without_deleted' do
-      let(:params) { { without_deleted: true } }
-      let!(:pending_delete_project) { create(:project, :public, pending_delete: true) }
-
-      it { is_expected.to match_array([public_project, internal_project]) }
-    end
-
-    describe 'sorting' do
-      let(:params) { { sort: 'name_asc' } }
-
-      it { is_expected.to eq([internal_project, public_project]) }
-    end
-
-    describe 'with admin user' do
-      let(:user) { create(:admin) }
-
-      context 'admin mode enabled' do
         before do
-          enable_admin_mode!(current_user)
+          current_user.toggle_star(public_project)
         end
 
-        it { is_expected.to match_array([public_project, internal_project, private_project, shared_project]) }
+        it { is_expected.to eq([public_project]) }
+
+        it 'returns only projects the user has access to' do
+          current_user.toggle_star(private_project)
+
+          is_expected.to eq([public_project])
+          expect(subject.count).to eq(1)
+          expect(subject.limit(1000).count).to eq(1)
+        end
       end
 
-      context 'admin mode disabled' do
+      describe 'filter by without_deleted' do
+        let(:params) { { without_deleted: true } }
+        let!(:pending_delete_project) { create(:project, :public, pending_delete: true) }
+
         it { is_expected.to match_array([public_project, internal_project]) }
       end
+
+      describe 'sorting' do
+        let(:params) { { sort: 'name_asc' } }
+
+        it { is_expected.to eq([internal_project, public_project]) }
+      end
+
+      describe 'with admin user' do
+        let(:user) { create(:admin) }
+
+        context 'admin mode enabled' do
+          before do
+            enable_admin_mode!(current_user)
+          end
+
+          it { is_expected.to match_array([public_project, internal_project, private_project, shared_project]) }
+        end
+
+        context 'admin mode disabled' do
+          it { is_expected.to match_array([public_project, internal_project]) }
+        end
+      end
+    end
+
+    describe 'without CTE flag enabled' do
+      let(:use_cte) { false }
+
+      it_behaves_like 'ProjectFinder#execute examples'
+    end
+
+    describe 'with CTE flag enabled' do
+      let(:use_cte) { true }
+
+      it_behaves_like 'ProjectFinder#execute examples'
     end
   end
 end
diff --git a/spec/frontend/monitoring/init_utils.js b/spec/frontend/monitoring/init_utils.js
index f71d3a64e8f..30c64a8d885 100644
--- a/spec/frontend/monitoring/init_utils.js
+++ b/spec/frontend/monitoring/init_utils.js
@@ -23,7 +23,6 @@ export const propsData = {
   emptyNoDataSvgPath: '/path/to/no-data.svg',
   emptyNoDataSmallSvgPath: '/path/to/no-data-small.svg',
   emptyUnableToConnectSvgPath: '/path/to/unable-to-connect.svg',
-  environmentsEndpoint: '/root/hello-prometheus/-/environments.json',
   currentEnvironmentName: 'production',
   customMetricsAvailable: false,
   customMetricsPath: '',
diff --git a/spec/frontend/monitoring/store/actions_spec.js b/spec/frontend/monitoring/store/actions_spec.js
index 352900f7087..7ac00bee99c 100644
--- a/spec/frontend/monitoring/store/actions_spec.js
+++ b/spec/frontend/monitoring/store/actions_spec.js
@@ -159,7 +159,6 @@ describe('Monitoring store actions', () => {
         {
           metricsEndpoint: 'additional_metrics.json',
           deploymentsEndpoint: 'deployments.json',
-          environmentsEndpoint: 'deployments.json',
         },
         mockedState,
         [
@@ -168,7 +167,6 @@ describe('Monitoring store actions', () => {
             payload: {
               metricsEndpoint: 'additional_metrics.json',
               deploymentsEndpoint: 'deployments.json',
-              environmentsEndpoint: 'deployments.json',
             },
           },
         ],
diff --git a/spec/frontend/monitoring/store/mutations_spec.js b/spec/frontend/monitoring/store/mutations_spec.js
index 2018e0fb7d9..7f8ced8cf43 100644
--- a/spec/frontend/monitoring/store/mutations_spec.js
+++ b/spec/frontend/monitoring/store/mutations_spec.js
@@ -81,13 +81,11 @@ describe('Monitoring mutations', () => {
     it('should set all the endpoints', () => {
       mutations[types.SET_ENDPOINTS](stateCopy, {
         metricsEndpoint: 'additional_metrics.json',
-        environmentsEndpoint: 'environments.json',
         deploymentsEndpoint: 'deployments.json',
         dashboardEndpoint: 'dashboard.json',
         projectPath: '/gitlab-org/gitlab-foss',
       });
       expect(stateCopy.metricsEndpoint).toEqual('additional_metrics.json');
-      expect(stateCopy.environmentsEndpoint).toEqual('environments.json');
       expect(stateCopy.deploymentsEndpoint).toEqual('deployments.json');
       expect(stateCopy.dashboardEndpoint).toEqual('dashboard.json');
       expect(stateCopy.projectPath).toEqual('/gitlab-org/gitlab-foss');
diff --git a/spec/helpers/environments_helper_spec.rb b/spec/helpers/environments_helper_spec.rb
index b7a6cd4db74..ca0360b363e 100644
--- a/spec/helpers/environments_helper_spec.rb
+++ b/spec/helpers/environments_helper_spec.rb
@@ -29,7 +29,6 @@ describe EnvironmentsHelper do
         'metrics-endpoint' => additional_metrics_project_environment_path(project, environment, format: :json),
         'deployments-endpoint' => project_environment_deployments_path(project, environment, format: :json),
         'default-branch' => 'master',
-        'environments-endpoint': project_environments_path(project, format: :json),
         'project-path' => project_path(project),
         'tags-path' => project_tags_path(project),
         'has-metrics' => "#{environment.has_metrics?}",
diff --git a/spec/javascripts/monitoring/components/dashboard_resize_spec.js b/spec/javascripts/monitoring/components/dashboard_resize_spec.js
index b956f4c3265..2422934f4b3 100644
--- a/spec/javascripts/monitoring/components/dashboard_resize_spec.js
+++ b/spec/javascripts/monitoring/components/dashboard_resize_spec.js
@@ -30,7 +30,6 @@ const propsData = {
   emptyNoDataSvgPath: '/path/to/no-data.svg',
   emptyNoDataSmallSvgPath: '/path/to/no-data-small.svg',
   emptyUnableToConnectSvgPath: '/path/to/unable-to-connect.svg',
-  environmentsEndpoint: '/root/hello-prometheus/environments/35',
   currentEnvironmentName: 'production',
   customMetricsAvailable: false,
   customMetricsPath: '',
diff --git a/spec/lib/gitlab/metrics/dashboard/processor_spec.rb b/spec/lib/gitlab/metrics/dashboard/processor_spec.rb
index e186a383059..8c3942c7f7d 100644
--- a/spec/lib/gitlab/metrics/dashboard/processor_spec.rb
+++ b/spec/lib/gitlab/metrics/dashboard/processor_spec.rb
@@ -62,7 +62,7 @@ describe Gitlab::Metrics::Dashboard::Processor do
           'metric_a1', # group priority 1, panel weight 1
           project_business_metric.id, # group priority 0, panel weight nil (0)
           project_response_metric.id, # group priority -5, panel weight nil (0)
-          project_system_metric.id, # group priority -10, panel weight nil (0)
+          project_system_metric.id # group priority -10, panel weight nil (0)
         ]
         actual_metrics_order = all_metrics.map { |m| m[:id] || m[:metric_id] }
 
diff --git a/spec/lib/marginalia_spec.rb b/spec/lib/marginalia_spec.rb
index 5dc54af99ce..db428bb65c4 100644
--- a/spec/lib/marginalia_spec.rb
+++ b/spec/lib/marginalia_spec.rb
@@ -18,7 +18,7 @@ describe 'Marginalia spec' do
     end
   end
 
-  class MarginaliaTestMailer < BaseMailer
+  class MarginaliaTestMailer < ApplicationMailer
     def first_user
       User.first
     end
diff --git a/spec/migrations/20200127090233_remove_invalid_issue_tracker_data_spec.rb b/spec/migrations/20200127090233_remove_invalid_issue_tracker_data_spec.rb
new file mode 100644
index 00000000000..d1b1dfb1904
--- /dev/null
+++ b/spec/migrations/20200127090233_remove_invalid_issue_tracker_data_spec.rb
@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20200127090233_remove_invalid_issue_tracker_data.rb')
+
+describe RemoveInvalidIssueTrackerData, :migration do
+  let(:issue_tracker_data) { table(:issue_tracker_data) }
+  let(:services) { table(:services) }
+
+  let(:service) { services.create(id: 1) }
+  let(:data) do
+    {
+      service_id: service.id,
+      encrypted_issues_url: 'http:url.com',
+      encrypted_issues_url_iv: 'somevalue',
+      encrypted_new_issue_url: 'http:url.com',
+      encrypted_new_issue_url_iv: 'somevalue',
+      encrypted_project_url: 'username',
+      encrypted_project_url_iv: 'somevalue'
+    }
+  end
+
+  let!(:valid_data) { issue_tracker_data.create(data) }
+  let!(:empty_data) { issue_tracker_data.create(service_id: service.id) }
+  let!(:invalid_issues_url) do
+    data[:encrypted_issues_url_iv] = nil
+    issue_tracker_data.create(data)
+  end
+  let!(:missing_issues_url) do
+    data[:encrypted_issues_url] = ''
+    data[:encrypted_issues_url_iv] = nil
+    issue_tracker_data.create(data)
+  end
+  let!(:invalid_new_isue_url) do
+    data[:encrypted_new_issue_url_iv] = nil
+    issue_tracker_data.create(data)
+  end
+  let!(:missing_new_issue_url) do
+    data[:encrypted_new_issue_url] = ''
+    issue_tracker_data.create(data)
+  end
+  let!(:invalid_project_url) do
+    data[:encrypted_project_url_iv] = nil
+    issue_tracker_data.create(data)
+  end
+  let!(:missing_project_url) do
+    data[:encrypted_project_url] = nil
+    data[:encrypted_project_url_iv] = nil
+    issue_tracker_data.create(data)
+  end
+
+  it 'removes the invalid data' do
+    valid_data_records = [valid_data, empty_data, missing_issues_url, missing_new_issue_url, missing_project_url]
+
+    expect { migrate! }.to change { issue_tracker_data.count }.from(8).to(5)
+
+    expect(issue_tracker_data.all).to match_array(valid_data_records)
+  end
+end
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 51320b2c9f9..0bb19609e27 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -3780,6 +3780,25 @@ describe Project do
     end
   end
 
+  describe '.wrap_authorized_projects_with_cte' do
+    let!(:user) { create(:user) }
+
+    let!(:private_project) do
+      create(:project, :private, creator: user, namespace: user.namespace)
+    end
+
+    let!(:public_project) { create(:project, :public) }
+
+    let(:projects) { described_class.all.public_or_visible_to_user(user) }
+
+    subject { described_class.wrap_authorized_projects_with_cte(projects) }
+
+    it 'wrapped query matches original' do
+      expect(subject.to_sql).to match(/^WITH "authorized_projects" AS/)
+      expect(subject).to match_array(projects)
+    end
+  end
+
   describe '#pages_available?' do
     let(:project) { create(:project, group: group) }
 
diff --git a/spec/services/merge_requests/create_from_issue_service_spec.rb b/spec/services/merge_requests/create_from_issue_service_spec.rb
index 3d58ecdd8cd..fb1bb308170 100644
--- a/spec/services/merge_requests/create_from_issue_service_spec.rb
+++ b/spec/services/merge_requests/create_from_issue_service_spec.rb
@@ -11,10 +11,8 @@ describe MergeRequests::CreateFromIssueService do
   let(:milestone_id) { create(:milestone, project: project).id }
   let(:issue) { create(:issue, project: project, milestone_id: milestone_id) }
   let(:custom_source_branch) { 'custom-source-branch' }
-
-  subject(:service) { described_class.new(project, user, service_params) }
-
-  subject(:service_with_custom_source_branch) { described_class.new(project, user, branch_name: custom_source_branch, **service_params) }
+  let(:service) { described_class.new(project, user, service_params) }
+  let(:service_with_custom_source_branch) { described_class.new(project, user, branch_name: custom_source_branch, **service_params) }
 
   before do
     project.add_developer(user)
diff --git a/yarn.lock b/yarn.lock
index 8f4b7dfcbbb..170812f7367 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2501,7 +2501,7 @@ chardet@^0.5.0:
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.5.0.tgz#fe3ac73c00c3d865ffcc02a0682e2c20b6a06029"
   integrity sha512-9ZTaoBaePSCFvNlNGrsyI8ZVACP2svUtq0DkM7t4K2ClAa96sqOIRjAzDTc8zXzFt1cZR46rRzLTiHFSJ+Qw0g==
 
-"charenc@>= 0.0.1", charenc@~0.0.1:
+charenc@~0.0.1:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/charenc/-/charenc-0.0.2.tgz#c0a1d2f3a7092e03774bfa83f14c0fc5790a8667"
   integrity sha1-wKHS86cJLgN3S/qD8UwPxXkKhmc=
@@ -3114,7 +3114,7 @@ cross-spawn@^5.0.1:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-"crypt@>= 0.0.1", crypt@~0.0.1:
+crypt@~0.0.1:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/crypt/-/crypt-0.0.2.tgz#88d7ff7ec0dfb86f713dc87bbb42d044d3e6c41b"
   integrity sha1-iNf/fsDfuG9xPch7u0LQRNPmxBs=
@@ -10136,14 +10136,6 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-sha1@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/sha1/-/sha1-1.1.1.tgz#addaa7a93168f393f19eb2b15091618e2700f848"
-  integrity sha1-rdqnqTFo85PxnrKxUJFhjicA+Eg=
-  dependencies:
-    charenc ">= 0.0.1"
-    crypt ">= 0.0.1"
-
 shallow-clone@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/shallow-clone/-/shallow-clone-3.0.1.tgz#8f2981ad92531f55035b01fb230769a40e02efa3"