diff --git a/.rubocop_rails.yml b/.rubocop_rails.yml
index e3067271ee..b0e45aa030 100644
--- a/.rubocop_rails.yml
+++ b/.rubocop_rails.yml
@@ -109,3 +109,7 @@ RSpec/MultipleMemoizedHelpers:
 
 RSpec/AnyInstance:
   Enabled: false
+
+RSpec/BeEq:
+  Exclude:
+    - spec/events/decidim/proposals/author_confirmation_proposal_event_spec.rb
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
index 4eb3c8f52b..a33f8c0198 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,7 +35,7 @@ gem "decidim-half_signup", git: "https://github.com/OpenSourcePolitics/decidim-m
 gem "decidim-homepage_interactive_map", git: "https://github.com/OpenSourcePolitics/decidim-module-homepage_interactive_map.git", branch: DECIDIM_BRANCH
 gem "decidim-phone_authorization_handler", git: "https://github.com/OpenSourcePolitics/decidim-module_phone_authorization_handler", branch: "release/0.27-stable"
 gem "decidim-simple_proposal", git: "https://github.com/OpenSourcePolitics/decidim-module-simple_proposal", branch: DECIDIM_BRANCH
-gem "decidim-spam_detection", git: "https://github.com/OpenSourcePolitics/decidim-spam_detection.git", tag: "4.1.1"
+gem "decidim-spam_detection", git: "https://github.com/OpenSourcePolitics/decidim-spam_detection.git", tag: "4.1.2"
 gem "decidim-survey_multiple_answers", git: "https://github.com/OpenSourcePolitics/decidim-module-survey_multiple_answers"
 gem "decidim-term_customizer", git: "https://github.com/OpenSourcePolitics/decidim-module-term_customizer.git", branch: "fix/email_with_precompile"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index ed7ec8559f..f8408c2dbd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,10 +108,10 @@ GIT
 
 GIT
   remote: https://github.com/OpenSourcePolitics/decidim-spam_detection.git
-  revision: fb2ee4624b728ce6f73603bfb84eda1d9b4e04d4
-  tag: 4.1.1
+  revision: 5e4f92f19b903228b8349fb002d735e900d63ed4
+  tag: 4.1.2
   specs:
-    decidim-spam_detection (4.1.1)
+    decidim-spam_detection (4.1.2)
       decidim-core (~> 0.27.0)
 
 GIT
@@ -1226,4 +1226,4 @@ RUBY VERSION
    ruby 3.0.6p216
 
 BUNDLED WITH
-   2.5.10
+   2.5.22
diff --git a/app/commands/decidim/proposals/publish_proposal.rb b/app/commands/decidim/proposals/publish_proposal.rb
new file mode 100644
index 0000000000..a637eaed4f
--- /dev/null
+++ b/app/commands/decidim/proposals/publish_proposal.rb
@@ -0,0 +1,126 @@
+# frozen_string_literal: true
+
+module Decidim
+  module Proposals
+    # A command with all the business logic when a user publishes a draft proposal.
+    class PublishProposal < Decidim::Command
+      include Decidim::AnonymousProposals::AnonymousBehaviorCommandsConcern
+
+      # Public: Initializes the command.
+      #
+      # proposal     - The proposal to publish.
+      # current_user - The current user.
+      # override: decidim-module-anonymous_proposals/app/commands/decidim/anonymous_proposals/publish_proposal_command_overrides.rb
+      def initialize(proposal, current_user)
+        @proposal = proposal
+        @is_anonymous = allow_anonymous_proposals? && (current_user.blank? || proposal.authored_by?(anonymous_group))
+        set_current_user(current_user)
+      end
+
+      # Executes the command. Broadcasts these events:
+      #
+      # - :ok when everything is valid and the proposal is published.
+      # - :invalid if the proposal's author is not the current user.
+      #
+      # Returns nothing.
+      def call
+        return broadcast(:invalid) unless @proposal.authored_by?(@current_user)
+
+        transaction do
+          publish_proposal
+          increment_scores
+          send_notification
+          send_notification_to_participatory_space
+          send_publication_notification
+        end
+
+        broadcast(:ok, @proposal)
+      end
+
+      private
+
+      # This will be the PaperTrail version that is
+      # shown in the version control feature (1 of 1)
+      #
+      # For an attribute to appear in the new version it has to be reset
+      # and reassigned, as PaperTrail only keeps track of object CHANGES.
+      def publish_proposal
+        title = reset(:title)
+        body = reset(:body)
+
+        Decidim.traceability.perform_action!(
+          "publish",
+          @proposal,
+          @current_user,
+          visibility: "public-only"
+        ) do
+          @proposal.update title: title, body: body, published_at: Time.current
+        end
+      end
+
+      # Reset the attribute to an empty string and return the old value
+      def reset(attribute)
+        attribute_value = @proposal[attribute]
+        PaperTrail.request(enabled: false) do
+          # rubocop:disable Rails/SkipsModelValidations
+          @proposal.update_attribute attribute, ""
+          # rubocop:enable Rails/SkipsModelValidations
+        end
+        attribute_value
+      end
+
+      def send_notification
+        return if @proposal.coauthorships.empty?
+
+        Decidim::EventsManager.publish(
+          event: "decidim.events.proposals.proposal_published",
+          event_class: Decidim::Proposals::PublishProposalEvent,
+          resource: @proposal,
+          followers: coauthors_followers
+        )
+      end
+
+      def send_publication_notification
+        Decidim::EventsManager.publish(
+          event: "decidim.events.proposals.author_confirmation_proposal_event",
+          event_class: Decidim::Proposals::AuthorConfirmationProposalEvent,
+          resource: @proposal,
+          affected_users: [@proposal.creator_identity],
+          extra: { force_email: true },
+          force_send: true
+        )
+      end
+
+      def send_notification_to_participatory_space
+        Decidim::EventsManager.publish(
+          event: "decidim.events.proposals.proposal_published",
+          event_class: Decidim::Proposals::PublishProposalEvent,
+          resource: @proposal,
+          followers: @proposal.participatory_space.followers - coauthors_followers,
+          extra: {
+            participatory_space: true
+          }
+        )
+      end
+
+      def coauthors_followers
+        @coauthors_followers ||= @proposal.authors.flat_map(&:followers)
+      end
+
+      def increment_scores
+        @proposal.coauthorships.find_each do |coauthorship|
+          if coauthorship.user_group
+            Decidim::Gamification.increment_score(coauthorship.user_group, :proposals)
+          else
+            Decidim::Gamification.increment_score(coauthorship.author, :proposals)
+          end
+        end
+      end
+
+      # override: decidim-module-anonymous_proposals/app/commands/decidim/anonymous_proposals/publish_proposal_command_overrides.rb
+      def component
+        @component ||= @proposal.component
+      end
+    end
+  end
+end
diff --git a/app/controllers/decidim/assemblies/assemblies_controller.rb b/app/controllers/decidim/assemblies/assemblies_controller.rb
index 6fa700f10d..c409bde9a2 100644
--- a/app/controllers/decidim/assemblies/assemblies_controller.rb
+++ b/app/controllers/decidim/assemblies/assemblies_controller.rb
@@ -89,10 +89,11 @@ def assembly_participatory_processes
           @assembly_participatory_processes ||= @current_participatory_space.linked_participatory_space_resources(:participatory_processes, "included_participatory_processes")
         else
           @assembly_participatory_processes = @current_participatory_space.linked_participatory_space_resources(:participatory_processes, "included_participatory_processes")
+          @active_processes ||= @assembly_participatory_processes.select(&:active?)
           sorted_by_date = {
-            active: @assembly_participatory_processes.active_spaces.sort_by(&:end_date),
-            future: @assembly_participatory_processes.future_spaces.sort_by(&:start_date),
-            past: @assembly_participatory_processes.past_spaces.sort_by(&:end_date).reverse
+            active: @active_processes.reject { |process| process.end_date.nil? }.sort_by(&:end_date) + processes_without_end_date(@active_processes),
+            future: @assembly_participatory_processes.upcoming.sort_by(&:start_date),
+            past: @assembly_participatory_processes.past.sort_by(&:end_date).reverse
           }
           @assembly_participatory_processes = sorted_by_date
         end
@@ -101,6 +102,10 @@ def assembly_participatory_processes
       def current_assemblies_settings
         @current_assemblies_settings ||= Decidim::AssembliesSetting.find_or_create_by(decidim_organization_id: current_organization.id)
       end
+
+      def processes_without_end_date(processes)
+        processes.select { |process| process.end_date.nil? }
+      end
     end
   end
 end
diff --git a/app/controllers/decidim/participatory_processes/participatory_processes_controller.rb b/app/controllers/decidim/participatory_processes/participatory_processes_controller.rb
index e1d755b7a3..72b7cf0f25 100644
--- a/app/controllers/decidim/participatory_processes/participatory_processes_controller.rb
+++ b/app/controllers/decidim/participatory_processes/participatory_processes_controller.rb
@@ -136,7 +136,7 @@ def linked_assemblies
       def custom_sort(date)
         case date
         when "active"
-          @participatory_processes.sort_by(&:end_date)
+          @participatory_processes.reject { |process| process.end_date.nil? }.sort_by(&:end_date) + processes_without_end_date(@participatory_processes)
         when "past"
           @participatory_processes.sort_by(&:end_date).reverse
         when "upcoming"
@@ -149,11 +149,16 @@ def custom_sort(date)
       end
 
       def sort_all_processes
-        actives = @participatory_processes.select(&:active?).sort_by(&:end_date)
+        @actives_processes ||= @participatory_processes.select(&:active?)
+        actives = @actives_processes.reject { |process| process.end_date.nil? }.sort_by(&:end_date) + processes_without_end_date(@actives_processes)
         pasts = @participatory_processes.select(&:past?).sort_by(&:end_date).reverse
         upcomings = @participatory_processes.select(&:upcoming?).sort_by(&:start_date)
         (actives + upcomings + pasts)
       end
+
+      def processes_without_end_date(processes)
+        processes.select { |process| process.end_date.nil? }
+      end
     end
   end
 end
diff --git a/app/events/decidim/proposals/author_confirmation_proposal_event.rb b/app/events/decidim/proposals/author_confirmation_proposal_event.rb
new file mode 100644
index 0000000000..22745650a4
--- /dev/null
+++ b/app/events/decidim/proposals/author_confirmation_proposal_event.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Decidim
+  module Proposals
+    class AuthorConfirmationProposalEvent < Decidim::Events::SimpleEvent
+      def self.model_name
+        ActiveModel::Name.new(self, nil, I18n.t("decidim.events.proposals.author_confirmation_proposal_event.email_subject"))
+      end
+
+      def resource_title
+        translated_attribute(resource.title)
+      end
+    end
+  end
+end
diff --git a/config/i18n-tasks.yml b/config/i18n-tasks.yml
index be5b5b9147..fef7c18f22 100644
--- a/config/i18n-tasks.yml
+++ b/config/i18n-tasks.yml
@@ -164,5 +164,8 @@ ignore_unused:
   - decidim.newsletters.unsubscribe.error
   - decidim.newsletters.unsubscribe.token_error
   - decidim.half_signup.quick_auth.sms_verification.text_message
+  - decidim.events.proposals.author_confirmation_proposal_event.email_intro
+  - decidim.events.proposals.author_confirmation_proposal_event.email_outro
+  - decidim.events.proposals.author_confirmation_proposal_event.notification_title
 
 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index e0f8a670f8..87a51ec503 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -95,6 +95,12 @@ en:
           email_outro: You have received this notification because you are following the initiative "%{resource_title}".
           email_subject: Initiative "%{resource_title}" has been answered
           notification_title: The initiative <a href="%{resource_path}">%{resource_title}</a> has been answered.
+      proposals:
+        author_confirmation_proposal_event:
+          email_intro: 'Your proposal " %{resource_title} " was successfully received and is now public. Thank you for participating ! You can view it here:'
+          email_outro: You received this notification because you are the author of the proposal. You can unfollow it by visiting the proposal page (" %{resource_title} ") and clicking on " Unfollow ".
+          email_subject: Your proposal has been published!
+          notification_title: Your proposal <a href="%{resource_path}">%{resource_title}</a> is now live.
       users:
         user_officialized:
           email_intro: Participant %{name} (%{nickname}) has been officialized.
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index ee98ffd1d8..71410c5096 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -97,6 +97,12 @@ fr:
           email_outro: Vous avez reçu cette notification parce que vous suivez la pétition "%{resource_title}".
           email_subject: La pétition "%{resource_title}" a reçu une réponse.
           notification_title: La pétition <a href="%{resource_path}">%{resource_title}</a> a reçu une réponse.
+      proposals:
+        author_confirmation_proposal_event:
+          email_intro: 'Votre proposition « %{resource_title} » a été reçue avec succès et est maintenant publique. Merci pour votre participation ! Vous pouvez la consulter ici :'
+          email_outro: Vous recevez cette notification car vous êtes l’auteur de la proposition. Vous pouvez vous désabonner en visitant la page de la proposition (« %{resource_title} ») et en cliquant sur « Ne plus suivre ».
+          email_subject: Votre proposition a été publiée !
+          notification_title: Votre proposition <a href="%{resource_path}">%{resource_title}</a> est maintenant en ligne.
       users:
         user_officialized:
           email_intro: Le participant %{name} (%{nickname}) a été officialisé.
diff --git a/spec/controllers/assemblies_controller_spec.rb b/spec/controllers/assemblies_controller_spec.rb
index f28fd0e2c6..5d90dee6a5 100644
--- a/spec/controllers/assemblies_controller_spec.rb
+++ b/spec/controllers/assemblies_controller_spec.rb
@@ -146,11 +146,12 @@ module Assemblies
         context "when sort_by_date variable is true" do
           before do
             allow(Rails.application.secrets).to receive(:dig).with(:decidim, :participatory_processes, :sort_by_date).and_return(true)
+            active_processes.first.update(end_date: nil)
           end
 
-          it "includes only participatory processes related to the assembly, actives one by end_date then upcoming ones by start_date then past ones by end_date reversed" do
+          it "includes only participatory processes related to the assembly, actives one by end_date with end_date nil last, then upcoming ones by start_date then past ones by end_date reversed" do
             sorted_participatory_processes = {
-              active: participatory_processes.select(&:active?).sort_by(&:end_date),
+              active: participatory_processes.select { |process| process.active? && !process.end_date.nil? }.sort_by(&:end_date) + participatory_processes.select { |process| process.active? && process.end_date.nil? },
               future: participatory_processes.select(&:upcoming?).sort_by(&:start_date),
               past: participatory_processes.select(&:past?).sort_by(&:end_date).reverse
             }
diff --git a/spec/controllers/participatory_processes_controller_spec.rb b/spec/controllers/participatory_processes_controller_spec.rb
index 52d34d206b..977ccc12b6 100644
--- a/spec/controllers/participatory_processes_controller_spec.rb
+++ b/spec/controllers/participatory_processes_controller_spec.rb
@@ -137,11 +137,12 @@ module ParticipatoryProcesses
           context "and sort_by_date is true" do
             before do
               allow(Rails.application.secrets).to receive(:dig).with(:decidim, :participatory_processes, :sort_by_date).and_return(true)
+              active_processes.first.update(end_date: nil)
             end
             # search.with_date will default to "active"
 
             it "orders active processes by end date" do
-              expect(controller.helpers.participatory_processes).to eq(active_processes.sort_by(&:end_date))
+              expect(controller.helpers.participatory_processes).to eq(active_processes.reject { |process| process.end_date.nil? }.sort_by(&:end_date) + active_processes.select { |process| process.end_date.nil? })
             end
           end
         end