diff --git a/.rubocop.yml b/.rubocop.yml
index 68634e9e3..4948aea5a 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -29,6 +29,9 @@ Layout/EmptyLineAfterMagicComment:
 Layout/EmptyLineAfterGuardClause:
   Enabled: false
 
+Layout/EmptyLineBetweenDefs:
+  AllowAdjacentOneLineDefs: true
+
 Layout/EmptyLinesAroundAttributeAccessor:
   Enabled: true
 
diff --git a/app/models/concerns/account_merging.rb b/app/models/concerns/account_merging.rb
index 119773e6b..8161761fb 100644
--- a/app/models/concerns/account_merging.rb
+++ b/app/models/concerns/account_merging.rb
@@ -15,7 +15,8 @@ module AccountMerging
       Status, StatusPin, MediaAttachment, Poll, Report, Tombstone, Favourite,
       Follow, FollowRequest, Block, Mute,
       AccountModerationNote, AccountPin, AccountStat, ListAccount,
-      PollVote, Mention, AccountDeletionRequest, AccountNote, FollowRecommendationSuppression
+      PollVote, Mention, AccountDeletionRequest, AccountNote, FollowRecommendationSuppression,
+      Appeal
     ]
 
     owned_classes.each do |klass|
@@ -47,6 +48,10 @@ module AccountMerging
       record.update_attribute(:reference_account_id, id)
     end
 
+    Appeal.where(account_warning_id: other_account.id).find_each do |record|
+      record.update_attribute(:account_warning_id, id)
+    end
+
     # Some follow relationships have moved, so the cache is stale
     Rails.cache.delete_matched("followers_hash:#{id}:*")
     Rails.cache.delete_matched("relationships:#{id}:*")
diff --git a/lib/mastodon/maintenance_cli.rb b/lib/mastodon/maintenance_cli.rb
index 1e047d96c..33beec236 100644
--- a/lib/mastodon/maintenance_cli.rb
+++ b/lib/mastodon/maintenance_cli.rb
@@ -13,8 +13,8 @@ module Mastodon
       true
     end
 
-    MIN_SUPPORTED_VERSION = 2019_10_01_213028
-    MAX_SUPPORTED_VERSION = 2022_01_18_183123
+    MIN_SUPPORTED_VERSION = 2019_10_01_213028 # rubocop:disable Style/NumericLiterals
+    MAX_SUPPORTED_VERSION = 2022_03_10_060959 # rubocop:disable Style/NumericLiterals
 
     # Stubs to enjoy ActiveRecord queries while not depending on a particular
     # version of the code/database
@@ -44,6 +44,7 @@ module Mastodon
     class WebauthnCredential < ApplicationRecord; end
     class FollowRecommendationSuppression < ApplicationRecord; end
     class CanonicalEmailBlock < ApplicationRecord; end
+    class Appeal < ApplicationRecord; end
 
     class PreviewCard < ApplicationRecord
       self.inheritance_column = false
@@ -92,6 +93,7 @@ module Mastodon
         owned_classes << AccountNote if ActiveRecord::Base.connection.table_exists?(:account_notes)
         owned_classes << FollowRecommendationSuppression if ActiveRecord::Base.connection.table_exists?(:follow_recommendation_suppressions)
         owned_classes << AccountIdentityProof if ActiveRecord::Base.connection.table_exists?(:account_identity_proofs)
+        owned_classes << Appeal if ActiveRecord::Base.connection.table_exists?(:appeals)
 
         owned_classes.each do |klass|
           klass.where(account_id: other_account.id).find_each do |record|
@@ -121,6 +123,12 @@ module Mastodon
             record.update_attribute(:reference_account_id, id)
           end
         end
+
+        if ActiveRecord::Base.connection.table_exists?(:appeals)
+          Appeal.where(account_warning_id: other_account.id).find_each do |record|
+            record.update_attribute(:account_warning_id, id)
+          end
+        end
       end
     end
 
@@ -199,7 +207,7 @@ module Mastodon
       end
 
       @prompt.say 'Restoring index_accounts_on_username_and_domain_lower…'
-      if ActiveRecord::Migrator.current_version < 20200620164023
+      if ActiveRecord::Migrator.current_version < 20200620164023 # rubocop:disable Style/NumericLiterals
         ActiveRecord::Base.connection.add_index :accounts, 'lower (username), lower(domain)', name: 'index_accounts_on_username_and_domain_lower', unique: true
       else
         ActiveRecord::Base.connection.add_index :accounts, "lower (username), COALESCE(lower(domain), '')", name: 'index_accounts_on_username_and_domain_lower', unique: true
@@ -242,7 +250,7 @@ module Mastodon
         end
       end
 
-      if ActiveRecord::Migrator.current_version < 20220118183010
+      if ActiveRecord::Migrator.current_version < 20220118183010 # rubocop:disable Style/NumericLiterals
         ActiveRecord::Base.connection.select_all("SELECT string_agg(id::text, ',') AS ids FROM users WHERE remember_token IS NOT NULL GROUP BY remember_token HAVING count(*) > 1").each do |row|
           users = User.where(id: row['ids'].split(',')).sort_by(&:updated_at).reverse.drop(1)
           @prompt.warn "Unsetting remember token for those accounts: #{users.map(&:account).map(&:acct).join(', ')}"
@@ -266,7 +274,12 @@ module Mastodon
       ActiveRecord::Base.connection.add_index :users, ['confirmation_token'], name: 'index_users_on_confirmation_token', unique: true
       ActiveRecord::Base.connection.add_index :users, ['email'], name: 'index_users_on_email', unique: true
       ActiveRecord::Base.connection.add_index :users, ['remember_token'], name: 'index_users_on_remember_token', unique: true if ActiveRecord::Migrator.current_version < 20220118183010
-      ActiveRecord::Base.connection.add_index :users, ['reset_password_token'], name: 'index_users_on_reset_password_token', unique: true
+
+      if ActiveRecord::Migrator.current_version < 20220310060641 # rubocop:disable Style/NumericLiterals
+        ActiveRecord::Base.connection.add_index :users, ['reset_password_token'], name: 'index_users_on_reset_password_token', unique: true
+      else
+        ActiveRecord::Base.connection.add_index :users, ['reset_password_token'], name: 'index_users_on_reset_password_token', unique: true, where: 'reset_password_token IS NOT NULL', opclass: :text_pattern_ops
+      end
     end
 
     def deduplicate_account_domain_blocks!
@@ -325,7 +338,11 @@ module Mastodon
       end
 
       @prompt.say 'Restoring conversations indexes…'
-      ActiveRecord::Base.connection.add_index :conversations, ['uri'], name: 'index_conversations_on_uri', unique: true
+      if ActiveRecord::Migrator.current_version < 20220307083603 # rubocop:disable Style/NumericLiterals
+        ActiveRecord::Base.connection.add_index :conversations, ['uri'], name: 'index_conversations_on_uri', unique: true
+      else
+        ActiveRecord::Base.connection.add_index :conversations, ['uri'], name: 'index_conversations_on_uri', unique: true, where: 'uri IS NOT NULL', opclass: :text_pattern_ops
+      end
     end
 
     def deduplicate_custom_emojis!
@@ -438,7 +455,11 @@ module Mastodon
       end
 
       @prompt.say 'Restoring media_attachments indexes…'
-      ActiveRecord::Base.connection.add_index :media_attachments, ['shortcode'], name: 'index_media_attachments_on_shortcode', unique: true
+      if ActiveRecord::Migrator.current_version < 20220310060626 # rubocop:disable Style/NumericLiterals
+        ActiveRecord::Base.connection.add_index :media_attachments, ['shortcode'], name: 'index_media_attachments_on_shortcode', unique: true
+      else
+        ActiveRecord::Base.connection.add_index :media_attachments, ['shortcode'], name: 'index_media_attachments_on_shortcode', unique: true, where: 'shortcode IS NOT NULL', opclass: :text_pattern_ops
+      end
     end
 
     def deduplicate_preview_cards!
@@ -467,7 +488,11 @@ module Mastodon
       end
 
       @prompt.say 'Restoring statuses indexes…'
-      ActiveRecord::Base.connection.add_index :statuses, ['uri'], name: 'index_statuses_on_uri', unique: true
+      if ActiveRecord::Migrator.current_version < 20220310060706 # rubocop:disable Style/NumericLiterals
+        ActiveRecord::Base.connection.add_index :statuses, ['uri'], name: 'index_statuses_on_uri', unique: true
+      else
+        ActiveRecord::Base.connection.add_index :statuses, ['uri'], name: 'index_statuses_on_uri', unique: true, where: 'uri IS NOT NULL', opclass: :text_pattern_ops
+      end
     end
 
     def deduplicate_tags!