diff --git a/GITALY_SERVER_VERSION b/GITALY_SERVER_VERSION
index 8f6706289f0..a7c98ef1e75 100644
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
@@ -1 +1 @@
-b2a3b6ba03e6f2c2ad60582733fd27f050d8aa3f
+5bdafbc7693c7dfacc1c0932cfa8d62004c7097b
diff --git a/app/mailers/emails/merge_requests.rb b/app/mailers/emails/merge_requests.rb
index 67a445c14ab..cd7869123f3 100644
--- a/app/mailers/emails/merge_requests.rb
+++ b/app/mailers/emails/merge_requests.rb
@@ -55,6 +55,7 @@ module Emails
 
       @previous_reviewers = []
       @previous_reviewers = User.where(id: previous_reviewer_ids) if previous_reviewer_ids.any?
+      @updated_by_user = User.find(updated_by_user_id)
 
       mail_answer_thread(@merge_request, merge_request_thread_options(updated_by_user_id, reason))
     end
diff --git a/app/models/project_group_link.rb b/app/models/project_group_link.rb
index aee0afa875f..69d8c0db55b 100644
--- a/app/models/project_group_link.rb
+++ b/app/models/project_group_link.rb
@@ -3,6 +3,7 @@
 class ProjectGroupLink < ApplicationRecord
   include Expirable
   include EachBatch
+  include AfterCommitQueue
 
   belongs_to :project
   belongs_to :group
diff --git a/app/models/project_statistics.rb b/app/models/project_statistics.rb
index 856b77b9da7..942f20f6e5e 100644
--- a/app/models/project_statistics.rb
+++ b/app/models/project_statistics.rb
@@ -67,13 +67,7 @@ class ProjectStatistics < ApplicationRecord
   end
 
   def update_repository_size
-    size = if Feature.enabled?(:recent_objects_for_project_statistics, project)
-             project.repository.recent_objects_size
-           else
-             project.repository.size
-           end
-
-    self.repository_size = size.megabytes
+    self.repository_size = project.repository.recent_objects_size.megabytes
   end
 
   def update_wiki_size
diff --git a/app/views/notify/changed_reviewer_of_merge_request_email.html.haml b/app/views/notify/changed_reviewer_of_merge_request_email.html.haml
index ed7a3285f45..f080a5798f1 100644
--- a/app/views/notify/changed_reviewer_of_merge_request_email.html.haml
+++ b/app/views/notify/changed_reviewer_of_merge_request_email.html.haml
@@ -1,2 +1,4 @@
+= render_if_exists 'notify/address_new_reviewer_with_diff_summary'
+
 %p
   = change_reviewer_notification_text(@merge_request.reviewers, @previous_reviewers, :strong)
diff --git a/app/views/notify/changed_reviewer_of_merge_request_email.text.erb b/app/views/notify/changed_reviewer_of_merge_request_email.text.erb
index b6824966bb9..8db626548d7 100644
--- a/app/views/notify/changed_reviewer_of_merge_request_email.text.erb
+++ b/app/views/notify/changed_reviewer_of_merge_request_email.text.erb
@@ -1 +1,2 @@
+<%= render_if_exists 'notify/address_new_reviewer_with_diff_summary' -%>
 <%= change_reviewer_notification_text(@merge_request.reviewers, @previous_reviewers) %>
diff --git a/app/views/profiles/preferences/show.html.haml b/app/views/profiles/preferences/show.html.haml
index 397ba7ae700..681d4e087f3 100644
--- a/app/views/profiles/preferences/show.html.haml
+++ b/app/views/profiles/preferences/show.html.haml
@@ -21,9 +21,6 @@
           = s_('Preferences|Color theme')
     %p.gl-text-secondary
       = s_('Preferences|Customize the color of GitLab.')
-    - if show_super_sidebar?
-      %p
-        = s_('Preferences|Note: You have the new navigation enabled, so only Dark Mode theme significantly changes GitLab\'s appearance.')
     .application-theme.row
       - Gitlab::Themes.each do |theme|
         %label.col-6.col-sm-4.col-md-3.col-xl-2.gl-mb-5
diff --git a/config/feature_flags/development/recent_objects_for_project_statistics.yml b/config/feature_flags/development/recent_objects_for_project_statistics.yml
deleted file mode 100644
index 1c66cc492b5..00000000000
--- a/config/feature_flags/development/recent_objects_for_project_statistics.yml
+++ /dev/null
@@ -1,8 +0,0 @@
----
-name: recent_objects_for_project_statistics
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/127867
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/420125
-milestone: '16.3'
-type: development
-group: group::utilization
-default_enabled: false
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 16840d0f553..8a55b4dd231 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -35473,9 +35473,6 @@ msgstr ""
 msgid "Preferences|Must be a number between %{min} and %{max}"
 msgstr ""
 
-msgid "Preferences|Note: You have the new navigation enabled, so only Dark Mode theme significantly changes GitLab's appearance."
-msgstr ""
-
 msgid "Preferences|Preview"
 msgstr ""
 
diff --git a/spec/factories/project_group_links.rb b/spec/factories/project_group_links.rb
index 84c590e3ea1..5edd57d5fe1 100644
--- a/spec/factories/project_group_links.rb
+++ b/spec/factories/project_group_links.rb
@@ -12,8 +12,10 @@ FactoryBot.define do
     trait(:developer) { group_access { Gitlab::Access::DEVELOPER } }
     trait(:maintainer) { group_access { Gitlab::Access::MAINTAINER } }
 
-    after(:create) do |project_group_link, evaluator|
-      AuthorizedProjectUpdate::ProjectRecalculateService.new(project_group_link.project).execute
+    after(:create) do |project_group_link|
+      project_group_link.run_after_commit_or_now do
+        AuthorizedProjectUpdate::ProjectRecalculateService.new(project_group_link.project).execute
+      end
     end
   end
 end
diff --git a/spec/factories/projects.rb b/spec/factories/projects.rb
index fdf60ca71f8..0111083298c 100644
--- a/spec/factories/projects.rb
+++ b/spec/factories/projects.rb
@@ -114,7 +114,9 @@ FactoryBot.define do
       end
 
       if project.group
-        AuthorizedProjectUpdate::ProjectRecalculateService.new(project).execute
+        project.run_after_commit_or_now do
+          AuthorizedProjectUpdate::ProjectRecalculateService.new(project).execute
+        end
       end
 
       # assign the delegated `#ci_cd_settings` attributes after create
diff --git a/spec/models/project_statistics_spec.rb b/spec/models/project_statistics_spec.rb
index 6ba2db25afe..dd7989244d4 100644
--- a/spec/models/project_statistics_spec.rb
+++ b/spec/models/project_statistics_spec.rb
@@ -308,30 +308,14 @@ RSpec.describe ProjectStatistics do
   end
 
   describe '#update_repository_size' do
-    context 'with recent_objects_for_project_statistics enabled' do
-      before do
-        stub_feature_flags(recent_objects_for_project_statistics: true)
-        allow(project.repository).to receive(:recent_objects_size).and_return(5)
+    before do
+      allow(project.repository).to receive(:recent_objects_size).and_return(5)
 
-        statistics.update_repository_size
-      end
-
-      it 'stores the size of the repository' do
-        expect(statistics.repository_size).to eq 5.megabytes
-      end
+      statistics.update_repository_size
     end
 
-    context 'with use_recent_objects_for_project_statistics disabled' do
-      before do
-        stub_feature_flags(recent_objects_for_project_statistics: false)
-        allow(project.repository).to receive(:size).and_return(10)
-
-        statistics.update_repository_size
-      end
-
-      it 'stores the size of the repository' do
-        expect(statistics.repository_size).to eq 10.megabytes
-      end
+    it 'stores the size of the repository' do
+      expect(statistics.repository_size).to eq 5.megabytes
     end
   end