diff --git a/app/controllers/concerns/create_avis_concern.rb b/app/controllers/concerns/create_avis_concern.rb
index 9854ec405..ea3e9eb3c 100644
--- a/app/controllers/concerns/create_avis_concern.rb
+++ b/app/controllers/concerns/create_avis_concern.rb
@@ -34,6 +34,7 @@ module CreateAvisConcern
         end
       end
     )
+    dossier.avis.reload # unload non-persisted avis from dossier
 
     persisted, failed = create_results.partition(&:persisted?)
 
diff --git a/app/models/champ.rb b/app/models/champ.rb
index 8cb1d8804..780f3c7b6 100644
--- a/app/models/champ.rb
+++ b/app/models/champ.rb
@@ -45,6 +45,7 @@ class Champ < ApplicationRecord
     :repetition?,
     :dossier_link?,
     :titre_identite?,
+    :header_section?,
     to: :type_de_champ
 
   scope :updated_since?, -> (date) { where('champs.updated_at > ?', date) }
@@ -86,6 +87,10 @@ class Champ < ApplicationRecord
     end
   end
 
+  def sections
+    siblings.filter(&:header_section?)
+  end
+
   def mandatory_and_blank?
     mandatory? && blank?
   end
diff --git a/app/models/champs/header_section_champ.rb b/app/models/champs/header_section_champ.rb
index 59fd78da0..3ea8874a6 100644
--- a/app/models/champs/header_section_champ.rb
+++ b/app/models/champs/header_section_champ.rb
@@ -22,9 +22,19 @@ class Champs::HeaderSectionChamp < Champ
     # The user cannot enter any information here so it doesn’t make much sense to search
   end
 
+  def libelle_with_section_index
+    if sections.none?(&:libelle_with_section_index?)
+      "#{section_index}. #{libelle}"
+    else
+      libelle
+    end
+  end
+
+  def libelle_with_section_index?
+    libelle =~ /^\d/
+  end
+
   def section_index
-    siblings
-      .filter { |c| c.type_champ == TypeDeChamp.type_champs.fetch(:header_section) }
-      .index(self) + 1
+    sections.index(self) + 1
   end
 end
diff --git a/app/models/type_de_champ.rb b/app/models/type_de_champ.rb
index 913975f58..88fa0585c 100644
--- a/app/models/type_de_champ.rb
+++ b/app/models/type_de_champ.rb
@@ -174,6 +174,10 @@ class TypeDeChamp < ApplicationRecord
     ])
   end
 
+  def header_section?
+    type_champ == TypeDeChamp.type_champs.fetch(:header_section)
+  end
+
   def linked_drop_down_list?
     type_champ == TypeDeChamp.type_champs.fetch(:linked_drop_down_list)
   end
diff --git a/app/views/admin/instructeurs/index.html.haml b/app/views/admin/instructeurs/index.html.haml
index 8de1e612b..abb6ddbc1 100644
--- a/app/views/admin/instructeurs/index.html.haml
+++ b/app/views/admin/instructeurs/index.html.haml
@@ -18,7 +18,7 @@
   .col-xs-6
     %h3 Ajouter un instructeur
     #procedure_new.section.section-label
-      = form_with url: { controller: 'admin/instructeurs', action: :create }, local: true do
+      = form_with url: { controller: 'admin/instructeurs', action: :create } do
         .row
           .col-xs-5
             = render partial: 'admin/instructeurs/informations'
diff --git a/app/views/new_administrateur/procedures/jeton.html.haml b/app/views/new_administrateur/procedures/jeton.html.haml
index 2e4341d38..503f601e6 100644
--- a/app/views/new_administrateur/procedures/jeton.html.haml
+++ b/app/views/new_administrateur/procedures/jeton.html.haml
@@ -9,7 +9,7 @@
 
 .container
   %h1
-  = form_with model: @procedure, url: url_for({ controller: 'new_administrateur/procedures', action: :update_jeton }), local: true, html: { class: 'form' } do |f|
+  = form_with model: @procedure, url: url_for({ controller: 'new_administrateur/procedures', action: :update_jeton }), html: { class: 'form' } do |f|
     %p.explication
       Démarches Simplifiées utilise
       = link_to 'API Entreprise', "https://entreprise.api.gouv.fr/"
diff --git a/app/views/shared/dossiers/editable_champs/_header_section.html.haml b/app/views/shared/dossiers/editable_champs/_header_section.html.haml
index 5e40893c5..030efcd2b 100644
--- a/app/views/shared/dossiers/editable_champs/_header_section.html.haml
+++ b/app/views/shared/dossiers/editable_champs/_header_section.html.haml
@@ -1,5 +1,2 @@
 %h2.header-section
-  - libelle_starts_with_number = (champ.libelle =~ /^\d/)
-  - if !libelle_starts_with_number
-    = "#{champ.section_index}."
-  = champ.libelle
+  = champ.libelle_with_section_index
diff --git a/config/application.rb b/config/application.rb
index 20e021ce7..4598e3212 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -11,7 +11,7 @@ Dotenv::Railtie.load
 module TPS
   class Application < Rails::Application
     # Initialize configuration defaults for originally generated Rails version.
-    config.load_defaults 6.0
+    config.load_defaults 6.1
 
     # Configuration for the application, engines, and railties goes here.
     #
@@ -65,6 +65,12 @@ module TPS
     # disable the check performed by Rails.
     config.action_dispatch.ip_spoofing_check = false
 
+    # Set the queue name for the mail delivery jobs to 'mailers'
+    config.action_mailer.deliver_later_queue_name = :mailers
+
+    # Set the queue name for the analysis jobs to 'active_storage_analysis'
+    config.active_storage.queues.analysis = :active_storage_analysis
+
     config.to_prepare do
       # Make main application helpers available in administrate
       Administrate::ApplicationController.helper(TPS::Application.helpers)
diff --git a/config/env.example.optional b/config/env.example.optional
index df8dcca74..8420512d0 100644
--- a/config/env.example.optional
+++ b/config/env.example.optional
@@ -35,6 +35,9 @@ DS_ENV="staging"
 # Personnalisation d'instance - URL du site web FAQ
 # FAQ_URL="https://faq.demarches-simplifiees.fr"
 
+# Personnalisation d'instance - URL de la déclaration d'accessibilité
+# ACCESSIBILITE_URL=""
+
 # Personnalisation d'instance - Page externe "Disponibilité" (status page)
 # STATUS_PAGE_URL=""
 
diff --git a/config/initializers/new_framework_defaults_6_1.rb b/config/initializers/new_framework_defaults_6_1.rb
deleted file mode 100644
index 9526b835a..000000000
--- a/config/initializers/new_framework_defaults_6_1.rb
+++ /dev/null
@@ -1,67 +0,0 @@
-# Be sure to restart your server when you modify this file.
-#
-# This file contains migration options to ease your Rails 6.1 upgrade.
-#
-# Once upgraded flip defaults one by one to migrate to the new default.
-#
-# Read the Guide for Upgrading Ruby on Rails for more info on each option.
-
-# Support for inversing belongs_to -> has_many Active Record associations.
-# Rails.application.config.active_record.has_many_inversing = true
-
-# Track Active Storage variants in the database.
-# Rails.application.config.active_storage.track_variants = true
-
-# Apply random variation to the delay when retrying failed jobs.
-# Rails.application.config.active_job.retry_jitter = 0.15
-
-# Stop executing `after_enqueue`/`after_perform` callbacks if
-# `before_enqueue`/`before_perform` respectively halts with `throw :abort`.
-# Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
-
-# Specify cookies SameSite protection level: either :none, :lax, or :strict.
-#
-# This change is not backwards compatible with earlier Rails versions.
-# It's best enabled when your entire app is migrated and stable on 6.1.
-# Rails.application.config.action_dispatch.cookies_same_site_protection = :lax
-
-# Generate CSRF tokens that are encoded in URL-safe Base64.
-#
-# This change is not backwards compatible with earlier Rails versions.
-# It's best enabled when your entire app is migrated and stable on 6.1.
-# Rails.application.config.action_controller.urlsafe_csrf_tokens = true
-
-# Specify whether `ActiveSupport::TimeZone.utc_to_local` returns a time with an
-# UTC offset or a UTC time.
-# ActiveSupport.utc_to_local_returns_utc_offset_times = true
-
-# Change the default HTTP status code to `308` when redirecting non-GET/HEAD
-# requests to HTTPS in `ActionDispatch::SSL` middleware.
-# Rails.application.config.action_dispatch.ssl_default_redirect_status = 308
-
-# Use new connection handling API. For most applications this won't have any
-# effect. For applications using multiple databases, this new API provides
-# support for granular connection swapping.
-# Rails.application.config.active_record.legacy_connection_handling = false
-
-# Make `form_with` generate non-remote forms by default.
-# Rails.application.config.action_view.form_with_generates_remote_forms = false
-
-# Set the default queue name for the analysis job to the queue adapter default.
-# Rails.application.config.active_storage.queues.analysis = nil
-
-# Set the default queue name for the purge job to the queue adapter default.
-# Rails.application.config.active_storage.queues.purge = nil
-
-# Set the default queue name for the incineration job to the queue adapter default.
-# Rails.application.config.action_mailbox.queues.incineration = nil
-
-# Set the default queue name for the routing job to the queue adapter default.
-# Rails.application.config.action_mailbox.queues.routing = nil
-
-# Set the default queue name for the mail deliver job to the queue adapter default.
-# Rails.application.config.action_mailer.deliver_later_queue_name = nil
-
-# Generate a `Link` header that gives a hint to modern browsers about
-# preloading assets when using `javascript_include_tag` and `stylesheet_link_tag`.
-# Rails.application.config.action_view.preload_links_header = true
diff --git a/spec/lib/active_storage/downloadable_file_spec.rb b/spec/lib/active_storage/downloadable_file_spec.rb
index 6fc938311..200c519f7 100644
--- a/spec/lib/active_storage/downloadable_file_spec.rb
+++ b/spec/lib/active_storage/downloadable_file_spec.rb
@@ -27,7 +27,7 @@ describe ActiveStorage::DownloadableFile do
 
     context 'when there is a repetition bloc' do
       before do
-        dossier.champs << build(:champ_repetition_with_piece_jointe, dossier: dossier)
+        dossier.champs << create(:champ_repetition_with_piece_jointe, dossier: dossier)
       end
 
       it 'should have 4 piece_justificatives' do
diff --git a/spec/services/dossier_search_service_spec.rb b/spec/services/dossier_search_service_spec.rb
index 52f855c27..c004f1d5a 100644
--- a/spec/services/dossier_search_service_spec.rb
+++ b/spec/services/dossier_search_service_spec.rb
@@ -23,15 +23,15 @@ describe DossierSearchService do
     let!(:dossier_0) { create(:dossier, state: Dossier.states.fetch(:brouillon), procedure: procedure_1, user: create(:user, email: 'brouillon@clap.fr')) }
 
     let!(:etablissement_1) { create(:etablissement, entreprise_raison_sociale: 'OCTO Academy', siret: '41636169600051') }
-    let!(:dossier_1) { create(:dossier, state: Dossier.states.fetch(:en_construction), procedure: procedure_1, user: create(:user, email: 'contact@test.com'), etablissement: etablissement_1) }
+    let!(:dossier_1) { create(:dossier, :en_construction, procedure: procedure_1, user: create(:user, email: 'contact@test.com'), etablissement: etablissement_1) }
 
     let!(:etablissement_2) { create(:etablissement, entreprise_raison_sociale: 'Plop octo', siret: '41816602300012') }
-    let!(:dossier_2) { create(:dossier, state: Dossier.states.fetch(:en_construction), procedure: procedure_1, user: create(:user, email: 'plop@gmail.com'), etablissement: etablissement_2) }
+    let!(:dossier_2) { create(:dossier, :en_construction, procedure: procedure_1, user: create(:user, email: 'plop@gmail.com'), etablissement: etablissement_2) }
 
     let!(:etablissement_3) { create(:etablissement, entreprise_raison_sociale: 'OCTO Technology', siret: '41816609600051') }
-    let!(:dossier_3) { create(:dossier, state: Dossier.states.fetch(:en_construction), procedure: procedure_2, user: create(:user, email: 'peace@clap.fr'), etablissement: etablissement_3) }
+    let!(:dossier_3) { create(:dossier, :en_construction, procedure: procedure_2, user: create(:user, email: 'peace@clap.fr'), etablissement: etablissement_3) }
 
-    let!(:dossier_archived) { create(:dossier, state: Dossier.states.fetch(:en_construction), procedure: procedure_1, archived: true, user: create(:user, email: 'archived@clap.fr')) }
+    let!(:dossier_archived) { create(:dossier, :en_construction, procedure: procedure_1, archived: true, user: create(:user, email: 'archived@clap.fr')) }
 
     describe 'search is empty' do
       let(:terms) { '' }