diff --git a/app/assets/stylesheets/new_design/france-connect-login.scss b/app/assets/stylesheets/new_design/france-connect-login.scss
index 779b800fc..f54289631 100644
--- a/app/assets/stylesheets/new_design/france-connect-login.scss
+++ b/app/assets/stylesheets/new_design/france-connect-login.scss
@@ -1,6 +1,15 @@
 @import "colors";
+@import "constants";
 
 .france-connect-login {
+  h2 {
+    color: $black;
+    font-size: 24px;
+  }
+}
+
+.france-connect-login-buttons,
+.france-connect-help-link {
   text-align: center;
 }
 
@@ -22,7 +31,29 @@
 }
 
 .france-connect-login-separator {
-  margin: 24px 0;
-  font-size: 14px;
-  color: $dark-grey;
+  display: flex;
+  flex-basis: 100%;
+  align-items: center;
+  color: $black;
+  text-transform: uppercase;
+  padding-bottom: $default-padding;
+  padding-top: $default-padding;
+
+  &::before,
+  &::after {
+    content: "";
+    flex-grow: 1;
+    background: $dark-grey;
+    height: 1px;
+    font-size: 0;
+    line-height: 0;
+  }
+
+  &::before {
+    margin-right: $default-spacer;
+  }
+
+  &::after {
+    margin-left: $default-spacer;
+  }
 }
diff --git a/app/controllers/concerns/create_avis_concern.rb b/app/controllers/concerns/create_avis_concern.rb
index ecc0d412a..a88c2768b 100644
--- a/app/controllers/concerns/create_avis_concern.rb
+++ b/app/controllers/concerns/create_avis_concern.rb
@@ -35,6 +35,7 @@ module CreateAvisConcern
     persisted, failed = create_results.partition(&:persisted?)
 
     if persisted.any?
+      dossier.update!(last_avis_updated_at: Time.zone.now)
       sent_emails_addresses = []
       persisted.each do |avis|
         avis.dossier.demander_un_avis!(avis)
diff --git a/app/controllers/instructeurs/avis_controller.rb b/app/controllers/instructeurs/avis_controller.rb
index 933aa64a7..0b392fa13 100644
--- a/app/controllers/instructeurs/avis_controller.rb
+++ b/app/controllers/instructeurs/avis_controller.rb
@@ -44,6 +44,7 @@ module Instructeurs
     def update
       if @avis.update(avis_params)
         flash.notice = 'Votre réponse est enregistrée.'
+        @avis.dossier.update!(last_avis_updated_at: Time.zone.now)
         redirect_to instruction_instructeur_avis_path(@avis.procedure, @avis)
       else
         flash.now.alert = @avis.errors.full_messages
@@ -60,6 +61,7 @@ module Instructeurs
       @commentaire = CommentaireService.build(current_instructeur, avis.dossier, commentaire_params)
 
       if @commentaire.save
+        @commentaire.dossier.update!(last_commentaire_updated_at: Time.zone.now)
         flash.notice = "Message envoyé"
         redirect_to messagerie_instructeur_avis_path(avis.procedure, avis)
       else
diff --git a/app/controllers/instructeurs/dossiers_controller.rb b/app/controllers/instructeurs/dossiers_controller.rb
index 85b21678d..7f24aafe4 100644
--- a/app/controllers/instructeurs/dossiers_controller.rb
+++ b/app/controllers/instructeurs/dossiers_controller.rb
@@ -169,6 +169,7 @@ module Instructeurs
       @commentaire = CommentaireService.build(current_instructeur, dossier, commentaire_params)
 
       if @commentaire.save
+        @commentaire.dossier.update!(last_commentaire_updated_at: Time.zone.now)
         current_instructeur.follow(dossier)
         flash.notice = "Message envoyé"
         redirect_to messagerie_instructeur_dossier_path(procedure, dossier)
@@ -191,8 +192,12 @@ module Instructeurs
 
     def update_annotations
       dossier = current_instructeur.dossiers.includes(champs_private: :type_de_champ).find(params[:dossier_id])
-      dossier.update(champs_private_params)
-      dossier.modifier_annotations!(current_instructeur)
+      dossier.assign_attributes(champs_private_params)
+      if dossier.champs_private.any?(&:changed?)
+        dossier.last_champ_private_updated_at = Time.zone.now
+      end
+      dossier.save
+      dossier.log_modifier_annotations!(current_instructeur)
       redirect_to annotations_privees_instructeur_dossier_path(procedure, dossier)
     end
 
diff --git a/app/controllers/users/dossiers_controller.rb b/app/controllers/users/dossiers_controller.rb
index 93a62ad67..4d65e3e05 100644
--- a/app/controllers/users/dossiers_controller.rb
+++ b/app/controllers/users/dossiers_controller.rb
@@ -198,6 +198,7 @@ module Users
       @commentaire = CommentaireService.build(current_user, dossier, commentaire_params)
 
       if @commentaire.save
+        @commentaire.dossier.update!(last_commentaire_updated_at: Time.zone.now)
         dossier.followers_instructeurs
           .with_instant_email_message_notifications
           .each do |instructeur|
@@ -344,7 +345,11 @@ module Users
       errors = []
 
       if champs_params[:dossier]
-        if !@dossier.update(champs_params[:dossier])
+        @dossier.assign_attributes(champs_params[:dossier])
+        if @dossier.champs.any?(&:changed?)
+          @dossier.last_champ_updated_at = Time.zone.now
+        end
+        if !@dossier.save
           errors += @dossier.errors.full_messages
         elsif change_groupe_instructeur?
           groupe_instructeur = @dossier.procedure.groupe_instructeurs.find(params[:dossier][:groupe_instructeur_id])
diff --git a/app/jobs/tmp_set_dossiers_last_updated_at_job.rb b/app/jobs/tmp_set_dossiers_last_updated_at_job.rb
new file mode 100644
index 000000000..80c15e043
--- /dev/null
+++ b/app/jobs/tmp_set_dossiers_last_updated_at_job.rb
@@ -0,0 +1,30 @@
+class TmpSetDossiersLastUpdatedAtJob < ApplicationJob
+  def perform(except)
+    dossiers = Dossier.where
+      .not(id: except)
+      .where(last_champ_updated_at: nil)
+      .includes(:champs, :avis, :commentaires)
+      .limit(100)
+
+    dossiers.find_each do |dossier|
+      last_commentaire_updated_at = dossier.commentaires
+        .where.not(email: OLD_CONTACT_EMAIL)
+        .where.not(email: CONTACT_EMAIL)
+        .maximum(:updated_at)
+      last_avis_updated_at = dossier.avis.maximum(:updated_at)
+      last_champ_updated_at = dossier.champs.maximum(:updated_at)
+      last_champ_private_updated_at = dossier.champs_private.maximum(:updated_at)
+      dossier.update_columns(
+        last_commentaire_updated_at: last_commentaire_updated_at,
+        last_avis_updated_at: last_avis_updated_at,
+        last_champ_updated_at: last_champ_updated_at,
+        last_champ_private_updated_at: last_champ_private_updated_at
+      )
+      except << dossier.id
+    end
+
+    if dossiers.where.not(id: except).exists?
+      TmpSetDossiersLastUpdatedAtJob.perform_later(except)
+    end
+  end
+end
diff --git a/app/models/dossier.rb b/app/models/dossier.rb
index 1317c26ab..b51801936 100644
--- a/app/models/dossier.rb
+++ b/app/models/dossier.rb
@@ -615,7 +615,7 @@ class Dossier < ApplicationRecord
       end
   end
 
-  def modifier_annotations!(instructeur)
+  def log_modifier_annotations!(instructeur)
     champs_private.filter(&:value_previously_changed?).each do |champ|
       log_dossier_operation(instructeur, :modifier_annotation, champ)
     end
diff --git a/app/views/commencer/show.html.haml b/app/views/commencer/show.html.haml
index 75e2b9470..c08c940ea 100644
--- a/app/views/commencer/show.html.haml
+++ b/app/views/commencer/show.html.haml
@@ -3,12 +3,12 @@
 .commencer.form
   - if !user_signed_in?
     %h2.huge-title Commencer la démarche
+    = render partial: 'shared/france_connect_login', locals: { url: commencer_france_connect_path(path: @procedure.path) }
     = link_to commencer_sign_up_path(path: @procedure.path), class: ['button large expand primary'] do
       Créer un compte
       %span.optional-on-small-screens
         #{APPLICATION_NAME}
     = link_to 'J’ai déjà un compte', commencer_sign_in_path(path: @procedure.path), class: ['button large expand']
-    = render partial: 'shared/france_connect_login', locals: { url: commencer_france_connect_path(path: @procedure.path) }
 
   - else
     - dossiers = current_user.dossiers.where(groupe_instructeur: @procedure.groupe_instructeurs)
diff --git a/app/views/new_administrateur/procedures/_procedures_list.html.haml b/app/views/new_administrateur/procedures/_procedures_list.html.haml
index cfbfaad03..8923f657e 100644
--- a/app/views/new_administrateur/procedures/_procedures_list.html.haml
+++ b/app/views/new_administrateur/procedures/_procedures_list.html.haml
@@ -44,27 +44,28 @@
                     %span.icon.in-progress
                     .dropdown-description
                       %h4 Tester
+
+              %li
+                = link_to admin_procedure_clone_path(procedure.id), class: 'clone-btn', data: { method: :put } do
+                  %span.icon.new-folder
+                  .dropdown-description
+                    %h4 Cloner
+
+              - if procedure.publiee?
                 %li
-                  = link_to admin_procedure_clone_path(procedure.id), class: 'clone-btn', data: { method: :put } do
-                    %span.icon.new-folder
+                  = link_to admin_procedure_archive_path(procedure_id: procedure.id), method: :put, data: { confirm:  "Voulez-vous vraiment clore la démarche ? \nLes dossiers en cours pourront être instruits, mais aucun nouveau dossier ne pourra plus être déposé.", disable_with: "Archivage..."} do
+                    %span.icon.archive
                     .dropdown-description
-                      %h4 Cloner
+                      %h4 Clore
 
-                - if procedure.publiee?
-                  %li
-                    = link_to admin_procedure_archive_path(procedure_id: procedure.id), method: :put, data: { confirm:  "Voulez-vous vraiment clore la démarche ? \nLes dossiers en cours pourront être instruits, mais aucun nouveau dossier ne pourra plus être déposé.", disable_with: "Archivage..."} do
-                      %span.icon.archive
-                      .dropdown-description
-                        %h4 Clore
+              - if procedure.brouillon?
+                %li
+                  = link_to admin_procedure_path(procedure), method: :delete, data: { confirm:  "Voulez-vous vraiment supprimer la démarche ? \nToute suppression est définitive et s'appliquera aux éventuels autres administrateurs de cette démarche !" } do
+                    %span.icon.refuse
+                    .dropdown-description
+                      %h4 Supprimer
 
-                - if procedure.brouillon?
-                  %li
-                    = link_to admin_procedure_path(procedure), method: :delete, data: { confirm:  "Voulez-vous vraiment supprimer la démarche ? \nToute suppression est définitive et s'appliquera aux éventuels autres administrateurs de cette démarche !" } do
-                      %span.icon.refuse
-                      .dropdown-description
-                        %h4 Supprimer
-
-              - else
+              - if procedure.close?
                 %li
                   = link_to admin_procedure_publication_path(procedure) do
                     %span.icon.unarchive
diff --git a/app/views/new_administrateur/procedures/index.html.haml b/app/views/new_administrateur/procedures/index.html.haml
index 0f68be127..2a30ee766 100644
--- a/app/views/new_administrateur/procedures/index.html.haml
+++ b/app/views/new_administrateur/procedures/index.html.haml
@@ -1,6 +1,6 @@
 .sub-header
   .procedure-admin-listing-container
-    = link_to "Nouvelle Démarche", new_admin_procedure_path, id: 'new-procedure', class: 'button primary'
+    = link_to "Nouvelle Démarche", new_from_existing_admin_procedures_path, id: 'new-procedure', class: 'button primary'
   .container
 
     %ul.tabs
diff --git a/app/views/shared/_france_connect_login.html.haml b/app/views/shared/_france_connect_login.html.haml
index 4bd33221c..9f4a33646 100644
--- a/app/views/shared/_france_connect_login.html.haml
+++ b/app/views/shared/_france_connect_login.html.haml
@@ -1,7 +1,11 @@
 .france-connect-login
-  .france-connect-login-separator
-    ou
+  %h2
+    = t('views.shared.france_connect_login.title')
+  %p
+    = t('views.shared.france_connect_login.description')
   .france-connect-login-buttons
-    = link_to "S’identifier avec FranceConnect", url, class: "france-connect-login-button"
+    = link_to t('views.shared.france_connect_login.login_button'), url, class: "france-connect-login-button"
   .france-connect-help-link
-    = link_to "Qu’est-ce que FranceConnect ?", "https://franceconnect.gouv.fr/", target: "_blank", rel: "noopener", class: "link"
+    = link_to t('views.shared.france_connect_login.help_link'), "https://franceconnect.gouv.fr/", target: "_blank", rel: "noopener", class: "link"
+  .france-connect-login-separator
+    = t('views.shared.france_connect_login.separator')
diff --git a/app/views/users/registrations/new.html.haml b/app/views/users/registrations/new.html.haml
index c7755ad54..ec7b91c30 100644
--- a/app/views/users/registrations/new.html.haml
+++ b/app/views/users/registrations/new.html.haml
@@ -5,6 +5,8 @@
   = form_for resource, url: user_registration_path, html: { class: "form" } do |f|
     %h1 Créez-vous un compte #{APPLICATION_NAME}
 
+    = render partial: 'shared/france_connect_login', locals: { url: france_connect_particulier_path }
+
     = f.label :email, "Email (nom@site.com)", id: :user_email_label
     = f.text_field :email, type: :email, autocomplete: 'email', autofocus: true, placeholder: "Votre adresse email", 'aria-describedby': :user_email_label
 
@@ -24,4 +26,4 @@
 
     = f.submit "Créer un compte", class: "button large primary expand"
 
-  = render partial: 'shared/france_connect_login', locals: { url: france_connect_particulier_path }
+
diff --git a/app/views/users/sessions/new.html.haml b/app/views/users/sessions/new.html.haml
index a00021620..fe57eb71f 100644
--- a/app/views/users/sessions/new.html.haml
+++ b/app/views/users/sessions/new.html.haml
@@ -5,6 +5,8 @@
   = form_for User.new, url: user_session_path, html: { class: "form" } do |f|
     %h1.huge-title Connectez-vous
 
+    = render partial: 'shared/france_connect_login', locals: { url: france_connect_particulier_path }
+
     = f.label :email, "Email (nom@site.com)"
     = f.text_field :email, type: :email, autocomplete: 'username', autofocus: true
 
@@ -21,8 +23,6 @@
 
     = f.submit "Se connecter", class: "button large primary expand"
 
-  = render partial: 'shared/france_connect_login', locals: { url: france_connect_particulier_path }
-
   %hr
   %p.center
     %span Vous êtes nouveau sur demarches&#8209;simplifiees.fr ?
diff --git a/config/locales/views/shared/fr.yml b/config/locales/views/shared/fr.yml
index d1c7e15ea..963f7f1ba 100644
--- a/config/locales/views/shared/fr.yml
+++ b/config/locales/views/shared/fr.yml
@@ -9,3 +9,9 @@ fr:
         demande_revoquee_le: "Demande d'avis révoquée le %{date}"
         reponse_donnee_le: "Réponse donnée le %{date}"
         en_attente: "En attente de réponse"
+      france_connect_login:
+        title: 'Avec FranceConnect'
+        description: "France connect est la solution proposée par l’État pour sécuriser et simplifier la connexion aux services en ligne."
+        login_button: "S’identifier avec FranceConnect"
+        help_link: "Qu’est-ce que FranceConnect ?"
+        separator: 'ou'
diff --git a/db/migrate/20200722135121_add_dossiers_latest_updates_to_dossiers.rb b/db/migrate/20200722135121_add_dossiers_latest_updates_to_dossiers.rb
new file mode 100644
index 000000000..a857bd6ae
--- /dev/null
+++ b/db/migrate/20200722135121_add_dossiers_latest_updates_to_dossiers.rb
@@ -0,0 +1,8 @@
+class AddDossiersLatestUpdatesToDossiers < ActiveRecord::Migration[6.0]
+  def change
+    add_column :dossiers, :last_champ_updated_at, :datetime
+    add_column :dossiers, :last_champ_private_updated_at, :datetime
+    add_column :dossiers, :last_avis_updated_at, :datetime
+    add_column :dossiers, :last_commentaire_updated_at, :datetime
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 040346832..92ca3e485 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_07_15_143010) do
+ActiveRecord::Schema.define(version: 2020_07_22_135121) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -258,6 +258,10 @@ ActiveRecord::Schema.define(version: 2020_07_15_143010) do
     t.interval "en_construction_conservation_extension", default: "PT0S"
     t.datetime "termine_close_to_expiration_notice_sent_at"
     t.bigint "revision_id"
+    t.datetime "last_champ_updated_at"
+    t.datetime "last_champ_private_updated_at"
+    t.datetime "last_avis_updated_at"
+    t.datetime "last_commentaire_updated_at"
     t.index "to_tsvector('french'::regconfig, (search_terms || private_search_terms))", name: "index_dossiers_on_search_terms_private_search_terms", using: :gin
     t.index "to_tsvector('french'::regconfig, search_terms)", name: "index_dossiers_on_search_terms", using: :gin
     t.index ["archived"], name: "index_dossiers_on_archived"
diff --git a/spec/controllers/instructeurs/avis_controller_spec.rb b/spec/controllers/instructeurs/avis_controller_spec.rb
index 1d805df7d..497ac2e56 100644
--- a/spec/controllers/instructeurs/avis_controller_spec.rb
+++ b/spec/controllers/instructeurs/avis_controller_spec.rb
@@ -2,6 +2,7 @@ describe Instructeurs::AvisController, type: :controller do
   context 'with a instructeur signed in' do
     render_views
 
+    let(:now) { Time.zone.parse('01/02/2345') }
     let(:claimant) { create(:instructeur) }
     let(:instructeur) { create(:instructeur) }
     let(:procedure) { create(:procedure, :published, instructeurs: [claimant]) }
@@ -79,21 +80,24 @@ describe Instructeurs::AvisController, type: :controller do
     end
 
     describe '#update' do
-      describe 'without attachment' do
+      context 'without attachment' do
         before do
+          Timecop.freeze(now)
           patch :update, params: { id: avis_without_answer.id, procedure_id: procedure.id, avis: { answer: 'answer' } }
           avis_without_answer.reload
         end
+        after { Timecop.return }
 
         it 'should be ok' do
           expect(response).to redirect_to(instruction_instructeur_avis_path(avis_without_answer.procedure, avis_without_answer))
           expect(avis_without_answer.answer).to eq('answer')
           expect(avis_without_answer.piece_justificative_file).to_not be_attached
+          expect(dossier.reload.last_avis_updated_at).to eq(now)
           expect(flash.notice).to eq('Votre réponse est enregistrée.')
         end
       end
 
-      describe 'with attachment' do
+      context 'with attachment' do
         include ActiveJob::TestHelper
         let(:file) { fixture_file_upload('spec/fixtures/files/piece_justificative_0.pdf', 'application/pdf') }
 
@@ -117,18 +121,23 @@ describe Instructeurs::AvisController, type: :controller do
     describe '#create_commentaire' do
       let(:file) { nil }
       let(:scan_result) { true }
+      let(:now) { Time.zone.parse("14/07/1789") }
 
       subject { post :create_commentaire, params: { id: avis_without_answer.id, procedure_id: procedure.id, commentaire: { body: 'commentaire body', piece_jointe: file } } }
 
       before do
         allow(ClamavService).to receive(:safe_file?).and_return(scan_result)
+        Timecop.freeze(now)
       end
 
+      after { Timecop.return }
+
       it do
         subject
 
         expect(response).to redirect_to(messagerie_instructeur_avis_path(avis_without_answer.procedure, avis_without_answer))
         expect(dossier.commentaires.map(&:body)).to match(['commentaire body'])
+        expect(dossier.reload.last_commentaire_updated_at).to eq(now)
       end
 
       context "with a file" do
@@ -152,10 +161,12 @@ describe Instructeurs::AvisController, type: :controller do
       let(:invite_linked_dossiers) { nil }
 
       before do
+        Timecop.freeze(now)
         @introduction_file = fixture_file_upload('spec/fixtures/files/piece_justificative_0.pdf', 'application/pdf')
         post :create_avis, params: { id: previous_avis.id, procedure_id: procedure.id, avis: { emails: emails, introduction: intro, confidentiel: asked_confidentiel, invite_linked_dossiers: invite_linked_dossiers, introduction_file: @introduction_file } }
         created_avis.reload
       end
+      after { Timecop.return }
 
       context 'when an invalid email' do
         let(:previous_avis_confidentiel) { false }
@@ -165,6 +176,7 @@ describe Instructeurs::AvisController, type: :controller do
         it { expect(response).to render_template :instruction }
         it { expect(flash.alert).to eq(["toto.fr : Email n'est pas valide"]) }
         it { expect(Avis.last).to eq(previous_avis) }
+        it { expect(dossier.last_avis_updated_at).to eq(nil) }
       end
 
       context 'ask review with attachment' do
@@ -174,6 +186,7 @@ describe Instructeurs::AvisController, type: :controller do
 
         it { expect(created_avis.introduction_file).to be_attached }
         it { expect(created_avis.introduction_file.filename).to eq("piece_justificative_0.pdf") }
+        it { expect(created_avis.dossier.reload.last_avis_updated_at).to eq(now) }
         it { expect(flash.notice).to eq("Une demande d'avis a été envoyée à toto@totomail.com") }
       end
 
diff --git a/spec/controllers/instructeurs/dossiers_controller_spec.rb b/spec/controllers/instructeurs/dossiers_controller_spec.rb
index ec2d68386..2213f501b 100644
--- a/spec/controllers/instructeurs/dossiers_controller_spec.rb
+++ b/spec/controllers/instructeurs/dossiers_controller_spec.rb
@@ -390,6 +390,7 @@ describe Instructeurs::DossiersController, type: :controller do
     let(:body) { "avant\napres" }
     let(:file) { fixture_file_upload('spec/fixtures/files/piece_justificative_0.pdf', 'application/pdf') }
     let(:scan_result) { true }
+    let(:now) { Timecop.freeze("09/11/1989") }
 
     subject {
       post :create_commentaire, params: {
@@ -404,14 +405,18 @@ describe Instructeurs::DossiersController, type: :controller do
 
     before do
       allow(ClamavService).to receive(:safe_file?).and_return(scan_result)
+      Timecop.freeze(now)
     end
 
+    after { Timecop.return }
+
     it "creates a commentaire" do
       expect { subject }.to change(Commentaire, :count).by(1)
       expect(instructeur.followed_dossiers).to include(dossier)
 
       expect(response).to redirect_to(messagerie_instructeur_dossier_path(dossier.procedure, dossier))
       expect(flash.notice).to be_present
+      expect(dossier.reload.last_commentaire_updated_at).to eq(now)
     end
 
     context "when the commentaire created with virus file" do
@@ -459,6 +464,7 @@ describe Instructeurs::DossiersController, type: :controller do
       it { expect(response).to render_template :avis }
       it { expect(flash.alert).to eq(["emaila.com : Email n'est pas valide"]) }
       it { expect { subject }.not_to change(Avis, :count) }
+      it { expect(dossier.last_avis_updated_at).to eq(nil) }
     end
 
     context 'with multiple emails' do
@@ -578,9 +584,26 @@ describe Instructeurs::DossiersController, type: :controller do
       create(:dossier, :en_construction, procedure: procedure, champs_private: [champ_multiple_drop_down_list, champ_linked_drop_down_list, champ_datetime, champ_repetition])
     end
 
+    let(:now) { Time.zone.parse('01/01/2100') }
+
     before do
-      patch :update_annotations, params: {
-        procedure_id: procedure.id,
+      Timecop.freeze(now)
+      patch :update_annotations, params: params
+
+      champ_multiple_drop_down_list.reload
+      champ_linked_drop_down_list.reload
+      champ_datetime.reload
+      champ_repetition.reload
+    end
+
+    after do
+      Timecop.return
+    end
+
+    context "with new values for champs_private" do
+      let(:params) do
+        {
+          procedure_id: procedure.id,
         dossier_id: dossier.id,
         dossier: {
           champs_private_attributes: {
@@ -610,20 +633,36 @@ describe Instructeurs::DossiersController, type: :controller do
             }
           }
         }
-      }
-
-      champ_multiple_drop_down_list.reload
-      champ_linked_drop_down_list.reload
-      champ_datetime.reload
-      champ_repetition.reload
+        }
+      end
+      it { expect(champ_multiple_drop_down_list.value).to eq('["un", "deux"]') }
+      it { expect(champ_linked_drop_down_list.primary_value).to eq('primary') }
+      it { expect(champ_linked_drop_down_list.secondary_value).to eq('secondary') }
+      it { expect(champ_datetime.value).to eq('21/12/2019 13:17') }
+      it { expect(champ_repetition.champs.first.value).to eq('text') }
+      it { expect(dossier.reload.last_champ_private_updated_at).to eq(now) }
+      it { expect(response).to redirect_to(annotations_privees_instructeur_dossier_path(dossier.procedure, dossier)) }
     end
 
-    it { expect(champ_multiple_drop_down_list.value).to eq('["un", "deux"]') }
-    it { expect(champ_linked_drop_down_list.primary_value).to eq('primary') }
-    it { expect(champ_linked_drop_down_list.secondary_value).to eq('secondary') }
-    it { expect(champ_datetime.value).to eq('21/12/2019 13:17') }
-    it { expect(champ_repetition.champs.first.value).to eq('text') }
-    it { expect(response).to redirect_to(annotations_privees_instructeur_dossier_path(dossier.procedure, dossier)) }
+    context "without new values for champs_private" do
+      let(:params) do
+        {
+          procedure_id: procedure.id,
+        dossier_id: dossier.id,
+        dossier: {
+          champs_private_attributes: {},
+          champs_attributes: {
+            '0': {
+              id: champ_multiple_drop_down_list.id,
+              value: ['', 'un', 'deux']
+            }
+          }
+        }
+        }
+      end
+      it { expect(dossier.reload.last_champ_private_updated_at).to eq(nil) }
+      it { expect(response).to redirect_to(annotations_privees_instructeur_dossier_path(dossier.procedure, dossier)) }
+    end
   end
 
   describe "#telecharger_pjs" do
diff --git a/spec/controllers/users/dossiers_controller_spec.rb b/spec/controllers/users/dossiers_controller_spec.rb
index 9dd0cdfd5..29d8fbeb7 100644
--- a/spec/controllers/users/dossiers_controller_spec.rb
+++ b/spec/controllers/users/dossiers_controller_spec.rb
@@ -378,6 +378,22 @@ describe Users::DossiersController, type: :controller do
         expect(dossier.reload.state).to eq(Dossier.states.fetch(:en_construction))
       end
 
+      context 'without new values for champs' do
+        let(:submit_payload) do
+          {
+            id: dossier.id,
+            dossier: {
+              champs_attributes: {}
+            }
+          }
+        end
+
+        it "doesn't set last_champ_updated_at" do
+          subject
+          expect(dossier.reload.last_champ_updated_at).to eq(nil)
+        end
+      end
+
       context 'with instructeurs ok to be notified instantly' do
         let!(:instructeur_with_instant_email_dossier) { create(:instructeur) }
         let!(:instructeur_without_instant_email_dossier) { create(:instructeur) }
@@ -576,6 +592,7 @@ describe Users::DossiersController, type: :controller do
       it 'updates the champs' do
         subject
         expect(first_champ.reload.value).to eq('beautiful value')
+        expect(first_champ.dossier.reload.last_champ_updated_at).to eq(now)
         expect(piece_justificative_champ.reload.piece_justificative_file).to be_attached
       end
 
@@ -802,6 +819,7 @@ describe Users::DossiersController, type: :controller do
     let(:body) { "avant\napres" }
     let(:file) { fixture_file_upload('spec/fixtures/files/piece_justificative_0.pdf', 'application/pdf') }
     let(:scan_result) { true }
+    let(:now) { Time.zone.parse("18/09/1981") }
 
     subject {
       post :create_commentaire, params: {
@@ -814,6 +832,7 @@ describe Users::DossiersController, type: :controller do
     }
 
     before do
+      Timecop.freeze(now)
       sign_in(user)
       allow(ClamavService).to receive(:safe_file?).and_return(scan_result)
       allow(DossierMailer).to receive(:notify_new_commentaire_to_instructeur).and_return(double(deliver_later: nil))
@@ -823,6 +842,8 @@ describe Users::DossiersController, type: :controller do
       create(:assign_to, instructeur: instructeur_without_instant_message, procedure: procedure, instant_email_message_notifications_enabled: false, groupe_instructeur: procedure.defaut_groupe_instructeur)
     end
 
+    after { Timecop.return }
+
     it "creates a commentaire" do
       expect { subject }.to change(Commentaire, :count).by(1)
 
@@ -830,6 +851,7 @@ describe Users::DossiersController, type: :controller do
       expect(DossierMailer).to have_received(:notify_new_commentaire_to_instructeur).with(dossier, instructeur_with_instant_message.email)
       expect(DossierMailer).not_to have_received(:notify_new_commentaire_to_instructeur).with(dossier, instructeur_without_instant_message.email)
       expect(flash.notice).to be_present
+      expect(dossier.reload.last_commentaire_updated_at).to eq(now)
     end
   end
 
diff --git a/spec/features/admin/procedure_creation_spec.rb b/spec/features/admin/procedure_creation_spec.rb
index a2b2f0faa..943aa622d 100644
--- a/spec/features/admin/procedure_creation_spec.rb
+++ b/spec/features/admin/procedure_creation_spec.rb
@@ -33,7 +33,8 @@ feature 'As an administrateur I wanna create a new procedure', js: true do
         expect(page).to have_selector('#new-procedure')
         find('#new-procedure').click
 
-        expect(page).to have_current_path(new_admin_procedure_path)
+        expect(page).to have_current_path(new_from_existing_admin_procedures_path)
+        click_on 'Créer une nouvelle démarche de zéro'
         expect(find('#procedure_for_individual_true')).to be_checked
         expect(find('#procedure_for_individual_false')).not_to be_checked
         fill_in 'procedure_duree_conservation_dossiers_dans_ds', with: '3'
@@ -54,7 +55,8 @@ feature 'As an administrateur I wanna create a new procedure', js: true do
       expect(page).to have_selector('#new-procedure')
       find('#new-procedure').click
 
-      expect(page).to have_current_path(new_admin_procedure_path)
+      expect(page).to have_current_path(new_from_existing_admin_procedures_path)
+      click_on 'Créer une nouvelle démarche de zéro'
       fill_in_dummy_procedure_details
       click_on 'Créer la démarche'