diff --git a/Gemfile b/Gemfile
index e059cea230..f0054dcc5c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '>= 2.5.0', '< 3.1.0'
 gem 'pkg-config', '~> 1.4'
 
 gem 'puma', '~> 5.3'
-gem 'rails', '~> 6.1.3'
+gem 'rails', '~> 6.1.4'
 gem 'sprockets', '~> 3.7.2'
 gem 'thor', '~> 1.1'
 gem 'rack', '~> 2.2.3'
@@ -24,7 +24,7 @@ gem 'paperclip', '~> 6.0'
 gem 'blurhash', '~> 0.1'
 
 gem 'active_model_serializers', '~> 0.10'
-gem 'addressable', '~> 2.7'
+gem 'addressable', '~> 2.8'
 gem 'bootsnap', '~> 1.6.0', require: false
 gem 'browser'
 gem 'charlock_holmes', '~> 0.7.7'
diff --git a/Gemfile.lock b/Gemfile.lock
index a96cfb9809..04f8be599b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,40 +1,40 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (6.1.3.2)
-      actionpack (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    actioncable (6.1.4)
+      actionpack (= 6.1.4)
+      activesupport (= 6.1.4)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailbox (6.1.3.2)
-      actionpack (= 6.1.3.2)
-      activejob (= 6.1.3.2)
-      activerecord (= 6.1.3.2)
-      activestorage (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    actionmailbox (6.1.4)
+      actionpack (= 6.1.4)
+      activejob (= 6.1.4)
+      activerecord (= 6.1.4)
+      activestorage (= 6.1.4)
+      activesupport (= 6.1.4)
       mail (>= 2.7.1)
-    actionmailer (6.1.3.2)
-      actionpack (= 6.1.3.2)
-      actionview (= 6.1.3.2)
-      activejob (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    actionmailer (6.1.4)
+      actionpack (= 6.1.4)
+      actionview (= 6.1.4)
+      activejob (= 6.1.4)
+      activesupport (= 6.1.4)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (6.1.3.2)
-      actionview (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    actionpack (6.1.4)
+      actionview (= 6.1.4)
+      activesupport (= 6.1.4)
       rack (~> 2.0, >= 2.0.9)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (6.1.3.2)
-      actionpack (= 6.1.3.2)
-      activerecord (= 6.1.3.2)
-      activestorage (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    actiontext (6.1.4)
+      actionpack (= 6.1.4)
+      activerecord (= 6.1.4)
+      activestorage (= 6.1.4)
+      activesupport (= 6.1.4)
       nokogiri (>= 1.8.5)
-    actionview (6.1.3.2)
-      activesupport (= 6.1.3.2)
+    actionview (6.1.4)
+      activesupport (= 6.1.4)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
@@ -45,28 +45,28 @@ GEM
       case_transform (>= 0.2)
       jsonapi-renderer (>= 0.1.1.beta1, < 0.3)
     active_record_query_trace (1.8)
-    activejob (6.1.3.2)
-      activesupport (= 6.1.3.2)
+    activejob (6.1.4)
+      activesupport (= 6.1.4)
       globalid (>= 0.3.6)
-    activemodel (6.1.3.2)
-      activesupport (= 6.1.3.2)
-    activerecord (6.1.3.2)
-      activemodel (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
-    activestorage (6.1.3.2)
-      actionpack (= 6.1.3.2)
-      activejob (= 6.1.3.2)
-      activerecord (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    activemodel (6.1.4)
+      activesupport (= 6.1.4)
+    activerecord (6.1.4)
+      activemodel (= 6.1.4)
+      activesupport (= 6.1.4)
+    activestorage (6.1.4)
+      actionpack (= 6.1.4)
+      activejob (= 6.1.4)
+      activerecord (= 6.1.4)
+      activesupport (= 6.1.4)
       marcel (~> 1.0.0)
-      mini_mime (~> 1.0.2)
-    activesupport (6.1.3.2)
+      mini_mime (>= 1.1.0)
+    activesupport (6.1.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
       zeitwerk (~> 2.3)
-    addressable (2.7.0)
+    addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
@@ -353,7 +353,7 @@ GEM
     mimemagic (0.3.10)
       nokogiri (~> 1)
       rake
-    mini_mime (1.0.3)
+    mini_mime (1.1.0)
     mini_portile2 (2.5.3)
     minitest (5.14.4)
     msgpack (1.4.2)
@@ -374,7 +374,7 @@ GEM
       concurrent-ruby (~> 1.0, >= 1.0.2)
       sidekiq (>= 3.5)
       statsd-ruby (~> 1.4, >= 1.4.0)
-    oj (3.11.7)
+    oj (3.11.8)
     omniauth (1.9.1)
       hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
@@ -443,20 +443,20 @@ GEM
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (6.1.3.2)
-      actioncable (= 6.1.3.2)
-      actionmailbox (= 6.1.3.2)
-      actionmailer (= 6.1.3.2)
-      actionpack (= 6.1.3.2)
-      actiontext (= 6.1.3.2)
-      actionview (= 6.1.3.2)
-      activejob (= 6.1.3.2)
-      activemodel (= 6.1.3.2)
-      activerecord (= 6.1.3.2)
-      activestorage (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    rails (6.1.4)
+      actioncable (= 6.1.4)
+      actionmailbox (= 6.1.4)
+      actionmailer (= 6.1.4)
+      actionpack (= 6.1.4)
+      actiontext (= 6.1.4)
+      actionview (= 6.1.4)
+      activejob (= 6.1.4)
+      activemodel (= 6.1.4)
+      activerecord (= 6.1.4)
+      activestorage (= 6.1.4)
+      activesupport (= 6.1.4)
       bundler (>= 1.15.0)
-      railties (= 6.1.3.2)
+      railties (= 6.1.4)
       sprockets-rails (>= 2.0.0)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
@@ -472,11 +472,11 @@ GEM
       railties (>= 6.0.0, < 7)
     rails-settings-cached (0.6.6)
       rails (>= 4.2.0)
-    railties (6.1.3.2)
-      actionpack (= 6.1.3.2)
-      activesupport (= 6.1.3.2)
+    railties (6.1.4)
+      actionpack (= 6.1.4)
+      activesupport (= 6.1.4)
       method_source
-      rake (>= 0.8.7)
+      rake (>= 0.13)
       thor (~> 1.0)
     rainbow (3.0.0)
     rake (13.0.3)
@@ -525,7 +525,7 @@ GEM
     rspec-support (3.10.2)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (1.18.1)
+    rubocop (1.18.2)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -536,7 +536,7 @@ GEM
       unicode-display_width (>= 1.4.0, < 3.0)
     rubocop-ast (1.7.0)
       parser (>= 3.0.1.1)
-    rubocop-rails (2.11.1)
+    rubocop-rails (2.11.2)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.7.0, < 2.0)
@@ -570,7 +570,7 @@ GEM
       sidekiq (>= 3)
       thwait
       tilt (>= 1.4.0)
-    sidekiq-unique-jobs (7.1.1)
+    sidekiq-unique-jobs (7.1.2)
       brpoplpush-redis_script (> 0.1.1, <= 2.0.0)
       concurrent-ruby (~> 1.0, >= 1.0.5)
       sidekiq (>= 5.0, < 7.0)
@@ -659,7 +659,7 @@ GEM
     webpush (0.3.8)
       hkdf (~> 0.2)
       jwt (~> 2.0)
-    websocket-driver (0.7.3)
+    websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     wisper (2.0.1)
@@ -674,7 +674,7 @@ PLATFORMS
 DEPENDENCIES
   active_model_serializers (~> 0.10)
   active_record_query_trace (~> 1.8)
-  addressable (~> 2.7)
+  addressable (~> 2.8)
   annotate (~> 3.1)
   aws-sdk-s3 (~> 1.96)
   better_errors (~> 2.9)
@@ -758,7 +758,7 @@ DEPENDENCIES
   rack (~> 2.2.3)
   rack-attack (~> 6.5)
   rack-cors (~> 1.1)
-  rails (~> 6.1.3)
+  rails (~> 6.1.4)
   rails-controller-testing (~> 1.0)
   rails-i18n (~> 6.0)
   rails-settings-cached (~> 0.6)
diff --git a/app/controllers/activitypub/outboxes_controller.rb b/app/controllers/activitypub/outboxes_controller.rb
index 4a52560aca..b2aab56a56 100644
--- a/app/controllers/activitypub/outboxes_controller.rb
+++ b/app/controllers/activitypub/outboxes_controller.rb
@@ -11,7 +11,11 @@ class ActivityPub::OutboxesController < ActivityPub::BaseController
   before_action :set_cache_headers
 
   def show
-    expires_in(page_requested? ? 0 : 3.minutes, public: public_fetch_mode? && !(signed_request_account.present? && page_requested?))
+    if page_requested?
+      expires_in(1.minute, public: public_fetch_mode? && signed_request_account.nil?)
+    else
+      expires_in(3.minutes, public: public_fetch_mode?)
+    end
     render json: outbox_presenter, serializer: ActivityPub::OutboxSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
   end
 
@@ -76,4 +80,8 @@ class ActivityPub::OutboxesController < ActivityPub::BaseController
   def set_account
     @account = params[:account_username].present? ? Account.find_local!(username_param) : Account.representative
   end
+
+  def set_cache_headers
+    response.headers['Vary'] = 'Signature' if authorized_fetch_mode? || page_requested?
+  end
 end
diff --git a/app/controllers/admin/resets_controller.rb b/app/controllers/admin/resets_controller.rb
index db8f61d64c..7962b7a58c 100644
--- a/app/controllers/admin/resets_controller.rb
+++ b/app/controllers/admin/resets_controller.rb
@@ -6,9 +6,9 @@ module Admin
 
     def create
       authorize @user, :reset_password?
-      @user.send_reset_password_instructions
+      @user.reset_password!
       log_action :reset_password, @user
-      redirect_to admin_accounts_path
+      redirect_to admin_account_path(@user.account_id)
     end
   end
 end
diff --git a/app/controllers/admin/sign_in_token_authentications_controller.rb b/app/controllers/admin/sign_in_token_authentications_controller.rb
new file mode 100644
index 0000000000..e620ab2926
--- /dev/null
+++ b/app/controllers/admin/sign_in_token_authentications_controller.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module Admin
+  class SignInTokenAuthenticationsController < BaseController
+    before_action :set_target_user
+
+    def create
+      authorize @user, :enable_sign_in_token_auth?
+      @user.update(skip_sign_in_token: false)
+      log_action :enable_sign_in_token_auth, @user
+      redirect_to admin_account_path(@user.account_id)
+    end
+
+    def destroy
+      authorize @user, :disable_sign_in_token_auth?
+      @user.update(skip_sign_in_token: true)
+      log_action :disable_sign_in_token_auth, @user
+      redirect_to admin_account_path(@user.account_id)
+    end
+
+    private
+
+    def set_target_user
+      @user = User.find(params[:user_id])
+    end
+  end
+end
diff --git a/app/controllers/admin/two_factor_authentications_controller.rb b/app/controllers/admin/two_factor_authentications_controller.rb
index 0652c3a7a4..f7fb7eb8fe 100644
--- a/app/controllers/admin/two_factor_authentications_controller.rb
+++ b/app/controllers/admin/two_factor_authentications_controller.rb
@@ -9,7 +9,7 @@ module Admin
       @user.disable_two_factor!
       log_action :disable_2fa, @user
       UserMailer.two_factor_disabled(@user).deliver_later!
-      redirect_to admin_accounts_path
+      redirect_to admin_account_path(@user.account_id)
     end
 
     private
diff --git a/app/controllers/well_known/webfinger_controller.rb b/app/controllers/well_known/webfinger_controller.rb
index 0227f722a7..2b296ea3be 100644
--- a/app/controllers/well_known/webfinger_controller.rb
+++ b/app/controllers/well_known/webfinger_controller.rb
@@ -4,7 +4,6 @@ module WellKnown
   class WebfingerController < ActionController::Base
     include RoutingHelper
 
-    before_action { response.headers['Vary'] = 'Accept' }
     before_action :set_account
     before_action :check_account_suspension
 
@@ -39,10 +38,12 @@ module WellKnown
     end
 
     def bad_request
+      expires_in(3.minutes, public: true)
       head 400
     end
 
     def not_found
+      expires_in(3.minutes, public: true)
       head 404
     end
 
diff --git a/app/helpers/accounts_helper.rb b/app/helpers/accounts_helper.rb
index e977db2c6d..bb2374c0ef 100644
--- a/app/helpers/accounts_helper.rb
+++ b/app/helpers/accounts_helper.rb
@@ -84,19 +84,19 @@ module AccountsHelper
   def account_description(account)
     prepend_stats = [
       [
-        number_to_human(account.statuses_count, strip_insignificant_zeros: true),
+        number_to_human(account.statuses_count, precision: 3, strip_insignificant_zeros: true),
         I18n.t('accounts.posts', count: account.statuses_count),
       ].join(' '),
 
       [
-        number_to_human(account.following_count, strip_insignificant_zeros: true),
+        number_to_human(account.following_count, precision: 3, strip_insignificant_zeros: true),
         I18n.t('accounts.following', count: account.following_count),
       ].join(' '),
     ]
 
     unless hide_followers_count?(account)
       prepend_stats << [
-        number_to_human(account.followers_count, strip_insignificant_zeros: true),
+        number_to_human(account.followers_count, precision: 3, strip_insignificant_zeros: true),
         I18n.t('accounts.followers', count: account.followers_count),
       ].join(' ')
     end
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 5a9496bd42..cc622478d8 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -14,6 +14,17 @@ module ApplicationHelper
     ku
   ).freeze
 
+  def friendly_number_to_human(number, **options)
+    # By default, the number of precision digits used by number_to_human
+    # is looked up from the locales definition, and rails-i18n comes with
+    # values that don't seem to make much sense for many languages, so
+    # override these values with a default of 3 digits of precision.
+    options[:precision] = 3
+    options[:strip_insignificant_zeros] = true
+
+    number_to_human(number, **options)
+  end
+
   def active_nav_class(*paths)
     paths.any? { |path| current_page?(path) } ? 'active' : ''
   end
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 33f1e29896..0c7916b502 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -7291,6 +7291,7 @@ noscript {
     &__account {
       display: flex;
       text-decoration: none;
+      overflow: hidden;
     }
 
     .account__avatar {
diff --git a/app/models/account_stat.rb b/app/models/account_stat.rb
index 44da4f0d00..e702fa4a44 100644
--- a/app/models/account_stat.rb
+++ b/app/models/account_stat.rb
@@ -15,6 +15,7 @@
 
 class AccountStat < ApplicationRecord
   self.locking_column = nil
+  self.ignored_columns = %w(lock_version)
 
   belongs_to :account, inverse_of: :account_stat
 
diff --git a/app/models/user.rb b/app/models/user.rb
index 5c5e926e6b..a1a2780042 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -42,6 +42,7 @@
 #  sign_in_token_sent_at     :datetime
 #  webauthn_id               :string
 #  sign_up_ip                :inet
+#  skip_sign_in_token        :boolean
 #
 
 class User < ApplicationRecord
@@ -200,7 +201,7 @@ class User < ApplicationRecord
   end
 
   def suspicious_sign_in?(ip)
-    !otp_required_for_login? && current_sign_in_at.present? && current_sign_in_at < 2.weeks.ago && !recent_ip?(ip)
+    !otp_required_for_login? && !skip_sign_in_token? && current_sign_in_at.present? && !recent_ip?(ip)
   end
 
   def functional?
@@ -329,12 +330,32 @@ class User < ApplicationRecord
     super
   end
 
-  def reset_password!(new_password, new_password_confirmation)
+  def reset_password(new_password, new_password_confirmation)
     return false if encrypted_password.blank?
 
     super
   end
 
+  def reset_password!
+    # First, change password to something random, invalidate the remember-me token,
+    # and deactivate all sessions
+    transaction do
+      update(remember_token: nil, remember_created_at: nil, password: SecureRandom.hex)
+      session_activations.destroy_all
+    end
+
+    # Then, remove all authorized applications and connected push subscriptions
+    Doorkeeper::AccessGrant.by_resource_owner(self).in_batches.update_all(revoked_at: Time.now.utc)
+
+    Doorkeeper::AccessToken.by_resource_owner(self).in_batches do |batch|
+      batch.update_all(revoked_at: Time.now.utc)
+      Web::PushSubscription.where(access_token_id: batch).delete_all
+    end
+
+    # Finally, send a reset password prompt to the user
+    send_reset_password_instructions
+  end
+
   def show_all_media?
     setting_display_media == 'show_all'
   end
diff --git a/app/policies/user_policy.rb b/app/policies/user_policy.rb
index d832bff75d..6695a0ddf8 100644
--- a/app/policies/user_policy.rb
+++ b/app/policies/user_policy.rb
@@ -13,6 +13,14 @@ class UserPolicy < ApplicationPolicy
     admin? && !record.staff?
   end
 
+  def disable_sign_in_token_auth?
+    staff?
+  end
+
+  def enable_sign_in_token_auth?
+    staff?
+  end
+
   def confirm?
     staff? && !record.confirmed?
   end
diff --git a/app/views/about/more.html.haml b/app/views/about/more.html.haml
index 1cf1945225..a4a79c4e7f 100644
--- a/app/views/about/more.html.haml
+++ b/app/views/about/more.html.haml
@@ -16,11 +16,11 @@
         .row__information-board
           .information-board__section
             %span= t 'about.user_count_before'
-            %strong= number_to_human @instance_presenter.user_count, strip_insignificant_zeros: true
+            %strong= friendly_number_to_human @instance_presenter.user_count
             %span= t 'about.user_count_after', count: @instance_presenter.user_count
           .information-board__section
             %span= t 'about.status_count_before'
-            %strong= number_to_human @instance_presenter.status_count, strip_insignificant_zeros: true
+            %strong= friendly_number_to_human @instance_presenter.status_count
             %span= t 'about.status_count_after', count: @instance_presenter.status_count
         .row__mascot
           .landing-page__mascot
diff --git a/app/views/about/show.html.haml b/app/views/about/show.html.haml
index 565c4ed593..6ae9e6ae07 100644
--- a/app/views/about/show.html.haml
+++ b/app/views/about/show.html.haml
@@ -70,10 +70,10 @@
 
             .hero-widget__counters__wrapper
               .hero-widget__counter
-                %strong= number_to_human @instance_presenter.user_count, strip_insignificant_zeros: true
+                %strong= friendly_number_to_human @instance_presenter.user_count
                 %span= t 'about.user_count_after', count: @instance_presenter.user_count
               .hero-widget__counter
-                %strong= number_to_human @instance_presenter.active_user_count, strip_insignificant_zeros: true
+                %strong= friendly_number_to_human @instance_presenter.active_user_count
                 %span
                   = t 'about.active_count_after'
                   %abbr{ title: t('about.active_footnote') } *
diff --git a/app/views/accounts/_header.html.haml b/app/views/accounts/_header.html.haml
index 76dec18b12..d583edbd2d 100644
--- a/app/views/accounts/_header.html.haml
+++ b/app/views/accounts/_header.html.haml
@@ -15,17 +15,17 @@
         .details-counters
           .counter{ class: active_nav_class(short_account_url(account), short_account_with_replies_url(account), short_account_media_url(account)) }
             = link_to short_account_url(account), class: 'u-url u-uid', title: number_with_delimiter(account.statuses_count) do
-              %span.counter-number= number_to_human account.statuses_count, strip_insignificant_zeros: true
+              %span.counter-number= friendly_number_to_human account.statuses_count
               %span.counter-label= t('accounts.posts', count: account.statuses_count)
 
           .counter{ class: active_nav_class(account_following_index_url(account)) }
             = link_to account_following_index_url(account), title: number_with_delimiter(account.following_count) do
-              %span.counter-number= number_to_human account.following_count, strip_insignificant_zeros: true
+              %span.counter-number= friendly_number_to_human account.following_count
               %span.counter-label= t('accounts.following', count: account.following_count)
 
           .counter{ class: active_nav_class(account_followers_url(account)) }
             = link_to account_followers_url(account), title: hide_followers_count?(account) ? nil : number_with_delimiter(account.followers_count) do
-              %span.counter-number= hide_followers_count?(account) ? '-' : (number_to_human account.followers_count, strip_insignificant_zeros: true)
+              %span.counter-number= hide_followers_count?(account) ? '-' : (friendly_number_to_human account.followers_count)
               %span.counter-label= t('accounts.followers', count: account.followers_count)
         .spacer
         .public-account-header__tabs__tabs__buttons
@@ -36,8 +36,8 @@
 
       .public-account-header__extra__links
         = link_to account_following_index_url(account) do
-          %strong= number_to_human account.following_count, strip_insignificant_zeros: true
+          %strong= friendly_number_to_human account.following_count
           = t('accounts.following', count: account.following_count)
         = link_to account_followers_url(account) do
-          %strong= hide_followers_count?(account) ? '-' : (number_to_human account.followers_count, strip_insignificant_zeros: true)
+          %strong= hide_followers_count?(account) ? '-' : (friendly_number_to_human account.followers_count)
           = t('accounts.followers', count: account.followers_count)
diff --git a/app/views/accounts/show.html.haml b/app/views/accounts/show.html.haml
index 1a81b96f6c..72e9c66111 100644
--- a/app/views/accounts/show.html.haml
+++ b/app/views/accounts/show.html.haml
@@ -81,6 +81,6 @@
                   = t('accounts.nothing_here')
                 - else
                   %time.formatted{ datetime: featured_tag.last_status_at.iso8601, title: l(featured_tag.last_status_at) }= l featured_tag.last_status_at
-            .trends__item__current= number_to_human featured_tag.statuses_count, strip_insignificant_zeros: true
+            .trends__item__current= friendly_number_to_human featured_tag.statuses_count
 
     = render 'application/sidebar'
diff --git a/app/views/admin/accounts/show.html.haml b/app/views/admin/accounts/show.html.haml
index 27e1f80a72..66eb493427 100644
--- a/app/views/admin/accounts/show.html.haml
+++ b/app/views/admin/accounts/show.html.haml
@@ -129,6 +129,27 @@
               - else
                 = t('admin.accounts.confirming')
             %td= table_link_to 'refresh', t('admin.accounts.resend_confirmation.send'), resend_admin_account_confirmation_path(@account.id), method: :post if can?(:confirm, @account.user)
+          %tr
+            %th{ rowspan: can?(:reset_password, @account.user) ? 2 : 1 }= t('admin.accounts.security')
+            %td{ rowspan: can?(:reset_password, @account.user) ? 2 : 1 }
+              - if @account.user&.two_factor_enabled?
+                = t 'admin.accounts.security_measures.password_and_2fa'
+              - elsif @account.user&.skip_sign_in_token?
+                = t 'admin.accounts.security_measures.only_password'
+              - else
+                = t 'admin.accounts.security_measures.password_and_sign_in_token'
+            %td
+              - if @account.user&.two_factor_enabled?
+                = table_link_to 'unlock', t('admin.accounts.disable_two_factor_authentication'), admin_user_two_factor_authentication_path(@account.user.id), method: :delete if can?(:disable_2fa, @account.user)
+              - elsif @account.user&.skip_sign_in_token?
+                = table_link_to 'lock', t('admin.accounts.enable_sign_in_token_auth'), admin_user_sign_in_token_authentication_path(@account.user.id), method: :post if can?(:enable_sign_in_token_auth, @account.user)
+              - else
+                = table_link_to 'unlock', t('admin.accounts.disable_sign_in_token_auth'), admin_user_sign_in_token_authentication_path(@account.user.id), method: :delete if can?(:disable_sign_in_token_auth, @account.user)
+
+          - if can?(:reset_password, @account.user)
+            %tr
+              %td
+                = table_link_to 'key', t('admin.accounts.reset_password'), admin_account_reset_path(@account.id), method: :create, data: { confirm: t('admin.accounts.are_you_sure') }
 
           %tr
             %th= t('simple_form.labels.defaults.locale')
@@ -221,9 +242,6 @@
 
       %div
         - if @account.local?
-          = link_to t('admin.accounts.reset_password'), admin_account_reset_path(@account.id), method: :create, class: 'button' if can?(:reset_password, @account.user)
-          - if @account.user&.otp_required_for_login?
-            = link_to t('admin.accounts.disable_two_factor_authentication'), admin_user_two_factor_authentication_path(@account.user.id), method: :delete, class: 'button' if can?(:disable_2fa, @account.user)
           - if !@account.memorial? && @account.user_approved?
             = link_to t('admin.accounts.memorialize'), memorialize_admin_account_path(@account.id), method: :post, data: { confirm: t('admin.accounts.are_you_sure') }, class: 'button button--destructive' if can?(:memorialize, @account)
         - else
diff --git a/app/views/admin/dashboard/index.html.haml b/app/views/admin/dashboard/index.html.haml
index e25b808463..bd36580e69 100644
--- a/app/views/admin/dashboard/index.html.haml
+++ b/app/views/admin/dashboard/index.html.haml
@@ -13,42 +13,42 @@
   %div
     = link_to admin_accounts_url(local: 1, recent: 1) do
       .dashboard__counters__num{ title: number_with_delimiter(@users_count, strip_insignificant_zeros: true) }
-        = number_to_human @users_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @users_count
       .dashboard__counters__label= t 'admin.dashboard.total_users'
   %div
     %div
       .dashboard__counters__num{ title: number_with_delimiter(@registrations_week, strip_insignificant_zeros: true) }
-        = number_to_human @registrations_week, strip_insignificant_zeros: true
+        = friendly_number_to_human @registrations_week
       .dashboard__counters__label= t 'admin.dashboard.week_users_new'
   %div
     %div
       .dashboard__counters__num{ title: number_with_delimiter(@logins_week, strip_insignificant_zeros: true) }
-        = number_to_human @logins_week, strip_insignificant_zeros: true
+        = friendly_number_to_human @logins_week
       .dashboard__counters__label= t 'admin.dashboard.week_users_active'
   %div
     = link_to admin_pending_accounts_path do
       .dashboard__counters__num{ title: number_with_delimiter(@pending_users_count, strip_insignificant_zeros: true) }
-        = number_to_human @pending_users_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @pending_users_count
       .dashboard__counters__label= t 'admin.dashboard.pending_users'
   %div
     = link_to admin_reports_url do
       .dashboard__counters__num{ title: number_with_delimiter(@reports_count, strip_insignificant_zeros: true) }
-        = number_to_human @reports_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @reports_count
       .dashboard__counters__label= t 'admin.dashboard.open_reports'
   %div
     = link_to admin_tags_path(pending_review: '1') do
       .dashboard__counters__num{ title: number_with_delimiter(@pending_tags_count, strip_insignificant_zeros: true) }
-        = number_to_human @pending_tags_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @pending_tags_count
       .dashboard__counters__label= t 'admin.dashboard.pending_tags'
   %div
     %div
       .dashboard__counters__num{ title: number_with_delimiter(@interactions_week, strip_insignificant_zeros: true) }
-        = number_to_human @interactions_week, strip_insignificant_zeros: true
+        = friendly_number_to_human @interactions_week
       .dashboard__counters__label= t 'admin.dashboard.week_interactions'
   %div
     = link_to sidekiq_url do
       .dashboard__counters__num{ title: number_with_delimiter(@queue_backlog, strip_insignificant_zeros: true) }
-        = number_to_human @queue_backlog, strip_insignificant_zeros: true
+        = friendly_number_to_human @queue_backlog
       .dashboard__counters__label= t 'admin.dashboard.backlog'
 
 .dashboard__widgets
diff --git a/app/views/admin/follow_recommendations/_account.html.haml b/app/views/admin/follow_recommendations/_account.html.haml
index af5a4aaf7d..00196dd01a 100644
--- a/app/views/admin/follow_recommendations/_account.html.haml
+++ b/app/views/admin/follow_recommendations/_account.html.haml
@@ -7,10 +7,10 @@
         %tr
           %td= account_link_to account
           %td.accounts-table__count.optional
-            = number_to_human account.statuses_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.statuses_count
             %small= t('accounts.posts', count: account.statuses_count).downcase
           %td.accounts-table__count.optional
-            = number_to_human account.followers_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.followers_count
             %small= t('accounts.followers', count: account.followers_count).downcase
           %td.accounts-table__count
             - if account.last_status_at.present?
diff --git a/app/views/admin/instances/_instance.html.haml b/app/views/admin/instances/_instance.html.haml
index 990cf9ec88..dc81007ac9 100644
--- a/app/views/admin/instances/_instance.html.haml
+++ b/app/views/admin/instances/_instance.html.haml
@@ -30,4 +30,4 @@
           = ' / '
           %span.negative-hint
             = t('admin.instances.delivery.unavailable_message')
-    .trends__item__current{ title: t('admin.instances.known_accounts', count: instance.accounts_count) }= number_to_human instance.accounts_count, strip_insignificant_zeros: true
+    .trends__item__current{ title: t('admin.instances.known_accounts', count: instance.accounts_count) }= friendly_number_to_human instance.accounts_count
diff --git a/app/views/admin/tags/_tag.html.haml b/app/views/admin/tags/_tag.html.haml
index adf4ca7b2f..ac0c728165 100644
--- a/app/views/admin/tags/_tag.html.haml
+++ b/app/views/admin/tags/_tag.html.haml
@@ -16,4 +16,4 @@
             = fa_icon 'fire fw'
             = t('admin.tags.trending_right_now')
 
-      .trends__item__current= number_to_human tag.history.first[:uses], strip_insignificant_zeros: true
+      .trends__item__current= friendly_number_to_human tag.history.first[:uses]
diff --git a/app/views/directories/index.html.haml b/app/views/directories/index.html.haml
index febfb7d172..d5509f9464 100644
--- a/app/views/directories/index.html.haml
+++ b/app/views/directories/index.html.haml
@@ -39,10 +39,10 @@
 
         .directory__card__extra
           .accounts-table__count
-            = number_to_human account.statuses_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.statuses_count
             %small= t('accounts.posts', count: account.statuses_count).downcase
           .accounts-table__count
-            = hide_followers_count?(account) ? '-' : (number_to_human account.followers_count, strip_insignificant_zeros: true)
+            = hide_followers_count?(account) ? '-' : (friendly_number_to_human account.followers_count)
             %small= t('accounts.followers', count: account.followers_count).downcase
           .accounts-table__count
             - if account.last_status_at.present?
diff --git a/app/views/relationships/_account.html.haml b/app/views/relationships/_account.html.haml
index f521aff225..0fa3cffb55 100644
--- a/app/views/relationships/_account.html.haml
+++ b/app/views/relationships/_account.html.haml
@@ -9,10 +9,10 @@
             = interrelationships_icon(@relationships, account.id)
           %td= account_link_to account
           %td.accounts-table__count.optional
-            = number_to_human account.statuses_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.statuses_count
             %small= t('accounts.posts', count: account.statuses_count).downcase
           %td.accounts-table__count.optional
-            = number_to_human account.followers_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.followers_count
             %small= t('accounts.followers', count: account.followers_count).downcase
           %td.accounts-table__count
             - if account.last_status_at.present?
diff --git a/app/views/settings/featured_tags/index.html.haml b/app/views/settings/featured_tags/index.html.haml
index 297379893a..65de7f8f30 100644
--- a/app/views/settings/featured_tags/index.html.haml
+++ b/app/views/settings/featured_tags/index.html.haml
@@ -28,4 +28,4 @@
           - else
             %time{ datetime: featured_tag.last_status_at.iso8601, title: l(featured_tag.last_status_at) }= l featured_tag.last_status_at
           = table_link_to 'trash', t('filters.index.delete'), settings_featured_tag_path(featured_tag), method: :delete, data: { confirm: t('admin.accounts.are_you_sure') }
-      .trends__item__current= number_to_human featured_tag.statuses_count, strip_insignificant_zeros: true
+      .trends__item__current= friendly_number_to_human featured_tag.statuses_count
diff --git a/app/views/statuses/_detailed_status.html.haml b/app/views/statuses/_detailed_status.html.haml
index daf164949c..6b3b813067 100644
--- a/app/views/statuses/_detailed_status.html.haml
+++ b/app/views/statuses/_detailed_status.html.haml
@@ -55,18 +55,18 @@
         = fa_icon('reply')
       - else
         = fa_icon('reply-all')
-      %span.detailed-status__reblogs>= number_to_human status.replies_count, strip_insignificant_zeros: true
+      %span.detailed-status__reblogs>= friendly_number_to_human status.replies_count
       = " "
     ·
     - if status.public_visibility? || status.unlisted_visibility?
       = link_to remote_interaction_path(status, type: :reblog), class: 'modal-button detailed-status__link' do
         = fa_icon('retweet')
-        %span.detailed-status__reblogs>= number_to_human status.reblogs_count, strip_insignificant_zeros: true
+        %span.detailed-status__reblogs>= friendly_number_to_human status.reblogs_count
         = " "
       ·
     = link_to remote_interaction_path(status, type: :favourite), class: 'modal-button detailed-status__link' do
       = fa_icon('star')
-      %span.detailed-status__favorites>= number_to_human status.favourites_count, strip_insignificant_zeros: true
+      %span.detailed-status__favorites>= friendly_number_to_human status.favourites_count
       = " "
 
     - if user_signed_in?
diff --git a/config/locales/en.yml b/config/locales/en.yml
index cdb2e3df7f..51764a0e16 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -44,7 +44,7 @@ en:
       rejecting_media: 'Media files from these servers will not be processed or stored, and no thumbnails will be displayed, requiring manual click-through to the original file:'
       rejecting_media_title: Filtered media
       silenced: 'Posts from these servers will be hidden in public timelines and conversations, and no notifications will be generated from their users interactions, unless you are following them:'
-      silenced_title: Silenced servers
+      silenced_title: Limited servers
       suspended: 'No data from these servers will be processed, stored or exchanged, making any interaction or communication with users from these servers impossible:'
       suspended_title: Suspended servers
     unavailable_content_html: Mastodon generally allows you to view content from and interact with users from any other server in the fediverse. These are the exceptions that have been made on this particular server.
@@ -119,6 +119,7 @@ en:
       demote: Demote
       destroyed_msg: "%{username}'s data is now queued to be deleted imminently"
       disable: Freeze
+      disable_sign_in_token_auth: Disable e-mail token authentication
       disable_two_factor_authentication: Disable 2FA
       disabled: Frozen
       display_name: Display name
@@ -127,6 +128,7 @@ en:
       email: Email
       email_status: Email status
       enable: Unfreeze
+      enable_sign_in_token_auth: Enable e-mail token authentication
       enabled: Enabled
       enabled_msg: Successfully unfroze %{username}'s account
       followers: Followers
@@ -151,7 +153,7 @@ en:
         active: Active
         all: All
         pending: Pending
-        silenced: Silenced
+        silenced: Limited
         suspended: Suspended
         title: Moderation
       moderation_notes: Moderation notes
@@ -191,8 +193,12 @@ en:
       search: Search
       search_same_email_domain: Other users with the same e-mail domain
       search_same_ip: Other users with the same IP
-      sensitive: Sensitive
-      sensitized: marked as sensitive
+      security_measures:
+        only_password: Only password
+        password_and_2fa: Password and 2FA
+        password_and_sign_in_token: Password and e-mail token
+      sensitive: Force-sensitive
+      sensitized: Marked as sensitive
       shared_inbox_url: Shared inbox URL
       show:
         created_reports: Made reports
@@ -207,10 +213,10 @@ en:
       time_in_queue: Waiting in queue %{time}
       title: Accounts
       unconfirmed_email: Unconfirmed email
-      undo_sensitized: Undo sensitive
-      undo_silenced: Undo silence
+      undo_sensitized: Undo force-sensitive
+      undo_silenced: Undo limit
       undo_suspension: Undo suspension
-      unsilenced_msg: Successfully unlimited %{username}'s account
+      unsilenced_msg: Successfully undid limit of %{username}'s account
       unsubscribe: Unsubscribe
       unsuspended_msg: Successfully unsuspended %{username}'s account
       username: Username
@@ -236,14 +242,16 @@ en:
         destroy_custom_emoji: Delete Custom Emoji
         destroy_domain_allow: Delete Domain Allow
         destroy_domain_block: Delete Domain Block
-        destroy_email_domain_block: Delete e-mail domain block
+        destroy_email_domain_block: Delete E-mail Domain Block
         destroy_ip_block: Delete IP rule
         destroy_status: Delete Post
         destroy_unavailable_domain: Delete Unavailable Domain
         disable_2fa_user: Disable 2FA
         disable_custom_emoji: Disable Custom Emoji
+        disable_sign_in_token_auth_user: Disable E-mail Token Authentication for User
         disable_user: Disable User
         enable_custom_emoji: Enable Custom Emoji
+        enable_sign_in_token_auth_user: Enable E-mail Token Authentication for User
         enable_user: Enable User
         memorialize_account: Memorialize Account
         promote_user: Promote User
@@ -251,12 +259,12 @@ en:
         reopen_report: Reopen Report
         reset_password_user: Reset Password
         resolve_report: Resolve Report
-        sensitive_account: Mark the media in your account as sensitive
-        silence_account: Silence Account
+        sensitive_account: Force-Sensitive Account
+        silence_account: Limit Account
         suspend_account: Suspend Account
         unassigned_report: Unassign Report
-        unsensitive_account: Unmark the media in your account as sensitive
-        unsilence_account: Unsilence Account
+        unsensitive_account: Undo Force-Sensitive Account
+        unsilence_account: Undo Limit Account
         unsuspend_account: Unsuspend Account
         update_announcement: Update Announcement
         update_custom_emoji: Update Custom Emoji
@@ -285,8 +293,10 @@ en:
         destroy_unavailable_domain_html: "%{name} resumed delivery to domain %{target}"
         disable_2fa_user_html: "%{name} disabled two factor requirement for user %{target}"
         disable_custom_emoji_html: "%{name} disabled emoji %{target}"
+        disable_sign_in_token_auth_user_html: "%{name} disabled e-mail token authentication for %{target}"
         disable_user_html: "%{name} disabled login for user %{target}"
         enable_custom_emoji_html: "%{name} enabled emoji %{target}"
+        enable_sign_in_token_auth_user_html: "%{name} enabled e-mail token authentication for %{target}"
         enable_user_html: "%{name} enabled login for user %{target}"
         memorialize_account_html: "%{name} turned %{target}'s account into a memoriam page"
         promote_user_html: "%{name} promoted user %{target}"
@@ -295,11 +305,11 @@ en:
         reset_password_user_html: "%{name} reset password of user %{target}"
         resolve_report_html: "%{name} resolved report %{target}"
         sensitive_account_html: "%{name} marked %{target}'s media as sensitive"
-        silence_account_html: "%{name} silenced %{target}'s account"
+        silence_account_html: "%{name} limited %{target}'s account"
         suspend_account_html: "%{name} suspended %{target}'s account"
         unassigned_report_html: "%{name} unassigned report %{target}"
         unsensitive_account_html: "%{name} unmarked %{target}'s media as sensitive"
-        unsilence_account_html: "%{name} unsilenced %{target}'s account"
+        unsilence_account_html: "%{name} undid limit of %{target}'s account"
         unsuspend_account_html: "%{name} unsuspended %{target}'s account"
         update_announcement_html: "%{name} updated announcement %{target}"
         update_custom_emoji_html: "%{name} updated emoji %{target}"
@@ -421,14 +431,14 @@ en:
       rejecting_media: rejecting media files
       rejecting_reports: rejecting reports
       severity:
-        silence: silenced
+        silence: limited
         suspend: suspended
       show:
         affected_accounts:
           one: One account in the database affected
           other: "%{count} accounts in the database affected"
         retroactive:
-          silence: Unsilence existing affected accounts from this domain
+          silence: Undo limit of existing affected accounts from this domain
           suspend: Unsuspend existing affected accounts from this domain
         title: Undo domain block for %{domain}
         undo: Undo
diff --git a/config/routes.rb b/config/routes.rb
index 4e70b98e2f..a7687c62b1 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -285,6 +285,7 @@ Rails.application.routes.draw do
 
     resources :users, only: [] do
       resource :two_factor_authentication, only: [:destroy]
+      resource :sign_in_token_authentication, only: [:create, :destroy]
     end
 
     resources :custom_emojis, only: [:index, :new, :create] do
diff --git a/db/migrate/20210621221010_add_skip_sign_in_token_to_users.rb b/db/migrate/20210621221010_add_skip_sign_in_token_to_users.rb
new file mode 100644
index 0000000000..43ad9b9545
--- /dev/null
+++ b/db/migrate/20210621221010_add_skip_sign_in_token_to_users.rb
@@ -0,0 +1,5 @@
+class AddSkipSignInTokenToUsers < ActiveRecord::Migration[6.1]
+  def change
+    add_column :users, :skip_sign_in_token, :boolean
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 6d848d5bdd..6d8c5d4bf5 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -929,6 +929,7 @@ ActiveRecord::Schema.define(version: 2021_06_30_000137) do
     t.datetime "sign_in_token_sent_at"
     t.string "webauthn_id"
     t.inet "sign_up_ip"
+    t.boolean "skip_sign_in_token"
     t.index ["account_id"], name: "index_users_on_account_id"
     t.index ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true
     t.index ["created_by_application_id"], name: "index_users_on_created_by_application_id"
diff --git a/dist/mastodon-sidekiq.service b/dist/mastodon-sidekiq.service
index 9dd21b8a00..35b121cd77 100644
--- a/dist/mastodon-sidekiq.service
+++ b/dist/mastodon-sidekiq.service
@@ -9,6 +9,7 @@ WorkingDirectory=/home/mastodon/live
 Environment="RAILS_ENV=production"
 Environment="DB_POOL=25"
 Environment="MALLOC_ARENA_MAX=2"
+Environment="LD_PRELOAD=libjemalloc.so"
 ExecStart=/home/mastodon/.rbenv/shims/bundle exec sidekiq -c 25
 TimeoutSec=15
 Restart=always
diff --git a/dist/mastodon-web.service b/dist/mastodon-web.service
index c106a48608..f41efd2b09 100644
--- a/dist/mastodon-web.service
+++ b/dist/mastodon-web.service
@@ -8,6 +8,7 @@ User=mastodon
 WorkingDirectory=/home/mastodon/live
 Environment="RAILS_ENV=production"
 Environment="PORT=3000"
+Environment="LD_PRELOAD=libjemalloc.so"
 ExecStart=/home/mastodon/.rbenv/shims/bundle exec puma -C config/puma.rb
 ExecReload=/bin/kill -SIGUSR1 $MAINPID
 TimeoutSec=15
diff --git a/lib/mastodon/accounts_cli.rb b/lib/mastodon/accounts_cli.rb
index 74162256ff..0501948016 100644
--- a/lib/mastodon/accounts_cli.rb
+++ b/lib/mastodon/accounts_cli.rb
@@ -54,7 +54,8 @@ module Mastodon
 
     option :email, required: true
     option :confirmed, type: :boolean
-    option :role, default: 'user'
+    option :role, default: 'user', enum: %w(user moderator admin)
+    option :skip_sign_in_token, type: :boolean
     option :reattach, type: :boolean
     option :force, type: :boolean
     desc 'create USERNAME', 'Create a new user'
@@ -68,6 +69,9 @@ module Mastodon
       With the --role option one of  "user", "admin" or "moderator"
       can be supplied. Defaults to "user"
 
+      With the --skip-sign-in-token option, you can ensure that
+      the user is never asked for an e-mailed security code.
+
       With the --reattach option, the new user will be reattached
       to a given existing username of an old account. If the old
       account is still in use by someone else, you can supply
@@ -77,7 +81,7 @@ module Mastodon
     def create(username)
       account  = Account.new(username: username)
       password = SecureRandom.hex
-      user     = User.new(email: options[:email], password: password, agreement: true, approved: true, admin: options[:role] == 'admin', moderator: options[:role] == 'moderator', confirmed_at: options[:confirmed] ? Time.now.utc : nil, bypass_invite_request_check: true)
+      user     = User.new(email: options[:email], password: password, agreement: true, approved: true, admin: options[:role] == 'admin', moderator: options[:role] == 'moderator', confirmed_at: options[:confirmed] ? Time.now.utc : nil, bypass_invite_request_check: true, skip_sign_in_token: options[:skip_sign_in_token])
 
       if options[:reattach]
         account = Account.find_local(username) || Account.new(username: username)
@@ -113,7 +117,7 @@ module Mastodon
       end
     end
 
-    option :role
+    option :role, enum: %w(user moderator admin)
     option :email
     option :confirm, type: :boolean
     option :enable, type: :boolean
@@ -121,6 +125,7 @@ module Mastodon
     option :disable_2fa, type: :boolean
     option :approve, type: :boolean
     option :reset_password, type: :boolean
+    option :skip_sign_in_token, type: :boolean
     desc 'modify USERNAME', 'Modify a user'
     long_desc <<-LONG_DESC
       Modify a user account.
@@ -142,6 +147,9 @@ module Mastodon
 
       With the --reset-password option, the user's password is replaced by
       a randomly-generated one, printed in the output.
+
+      With the --skip-sign-in-token option, you can ensure that
+      the user is never asked for an e-mailed security code.
     LONG_DESC
     def modify(username)
       user = Account.find_local(username)&.user
@@ -163,6 +171,7 @@ module Mastodon
       user.disabled = true if options[:disable]
       user.approved = true if options[:approve]
       user.otp_required_for_login = false if options[:disable_2fa]
+      user.skip_sign_in_token = options[:skip_sign_in_token] unless options[:skip_sign_in_token].nil?
       user.confirm if options[:confirm]
 
       if user.save
diff --git a/lib/mastodon/domains_cli.rb b/lib/mastodon/domains_cli.rb
index 4ebd8a1e2c..a7c78c4a7a 100644
--- a/lib/mastodon/domains_cli.rb
+++ b/lib/mastodon/domains_cli.rb
@@ -17,6 +17,7 @@ module Mastodon
     option :verbose, type: :boolean, aliases: [:v]
     option :dry_run, type: :boolean
     option :limited_federation_mode, type: :boolean
+    option :by_uri, type: :boolean
     desc 'purge [DOMAIN...]', 'Remove accounts from a DOMAIN without a trace'
     long_desc <<-LONG_DESC
       Remove all accounts from a given DOMAIN without leaving behind any
@@ -26,6 +27,12 @@ module Mastodon
       When the --limited-federation-mode option is given, instead of purging accounts
       from a single domain, all accounts from domains that have not been explicitly allowed
       are removed from the database.
+
+      When the --by-uri option is given, DOMAIN is used to match the domain part of actor
+      URIs rather than the domain part of the webfinger handle. For instance, an account
+      that has the handle `foo@bar.com` but whose profile is at the URL
+      `https://mastodon-bar.com/users/foo`, would be purged by either
+      `tootctl domains purge bar.com` or `tootctl domains purge --by-uri mastodon-bar.com`.
     LONG_DESC
     def purge(*domains)
       dry_run = options[:dry_run] ? ' (DRY RUN)' : ''
@@ -34,7 +41,11 @@ module Mastodon
         if options[:limited_federation_mode]
           Account.remote.where.not(domain: DomainAllow.pluck(:domain))
         elsif !domains.empty?
-          Account.remote.where(domain: domains)
+          if options[:by_uri]
+            domains.map { |domain| Account.remote.where(Account.arel_table[:uri].matches("https://#{domain}/%", false, true)) }.reduce(:or)
+          else
+            Account.remote.where(domain: domains)
+          end
         else
           say('No domain(s) given', :red)
           exit(1)
diff --git a/package.json b/package.json
index 4cb8829cdf..81abfa8bde 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "@babel/runtime": "^7.14.6",
     "@gamestdio/websocket": "^0.3.2",
     "@github/webauthn-json": "^0.5.7",
-    "@rails/ujs": "^6.1.3",
+    "@rails/ujs": "^6.1.4",
     "array-includes": "^3.1.3",
     "atrament": "0.2.4",
     "arrow-key-navigation": "^1.2.0",
@@ -171,14 +171,14 @@
     "webpack-cli": "^3.3.12",
     "webpack-merge": "^5.8.0",
     "wicg-inert": "^3.1.1",
-    "ws": "^7.5.1"
+    "ws": "^7.5.2"
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^5.14.1",
     "@testing-library/react": "^11.2.7",
     "babel-eslint": "^10.1.0",
     "babel-jest": "^27.0.6",
-    "eslint": "^7.29.0",
+    "eslint": "^7.30.0",
     "eslint-plugin-import": "~2.23.4",
     "eslint-plugin-jsx-a11y": "~6.4.1",
     "eslint-plugin-promise": "~5.1.0",
diff --git a/spec/controllers/activitypub/outboxes_controller_spec.rb b/spec/controllers/activitypub/outboxes_controller_spec.rb
index d23f2c17cb..1722690db1 100644
--- a/spec/controllers/activitypub/outboxes_controller_spec.rb
+++ b/spec/controllers/activitypub/outboxes_controller_spec.rb
@@ -55,6 +55,10 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
 
         it_behaves_like 'cachable response'
 
+        it 'does not have a Vary header' do
+          expect(response.headers['Vary']).to be_nil
+        end
+
         context 'when account is permanently suspended' do
           before do
             account.suspend!
@@ -96,6 +100,10 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
 
         it_behaves_like 'cachable response'
 
+        it 'returns Vary header with Signature' do
+          expect(response.headers['Vary']).to include 'Signature'
+        end
+
         context 'when account is permanently suspended' do
           before do
             account.suspend!
@@ -144,7 +152,7 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
         end
 
         it 'returns private Cache-Control header' do
-          expect(response.headers['Cache-Control']).to eq 'max-age=0, private'
+          expect(response.headers['Cache-Control']).to eq 'max-age=60, private'
         end
       end
 
@@ -170,7 +178,7 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
         end
 
         it 'returns private Cache-Control header' do
-          expect(response.headers['Cache-Control']).to eq 'max-age=0, private'
+          expect(response.headers['Cache-Control']).to eq 'max-age=60, private'
         end
       end
 
@@ -195,7 +203,7 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
         end
 
         it 'returns private Cache-Control header' do
-          expect(response.headers['Cache-Control']).to eq 'max-age=0, private'
+          expect(response.headers['Cache-Control']).to eq 'max-age=60, private'
         end
       end
 
@@ -220,7 +228,7 @@ RSpec.describe ActivityPub::OutboxesController, type: :controller do
         end
 
         it 'returns private Cache-Control header' do
-          expect(response.headers['Cache-Control']).to eq 'max-age=0, private'
+          expect(response.headers['Cache-Control']).to eq 'max-age=60, private'
         end
       end
     end
diff --git a/spec/controllers/admin/resets_controller_spec.rb b/spec/controllers/admin/resets_controller_spec.rb
index a20a460bd0..c1e34b7f96 100644
--- a/spec/controllers/admin/resets_controller_spec.rb
+++ b/spec/controllers/admin/resets_controller_spec.rb
@@ -16,7 +16,7 @@ describe Admin::ResetsController do
 
       post :create, params: { account_id: account.id }
 
-      expect(response).to redirect_to(admin_accounts_path)
+      expect(response).to redirect_to(admin_account_path(account.id))
     end
   end
 end
diff --git a/spec/controllers/admin/two_factor_authentications_controller_spec.rb b/spec/controllers/admin/two_factor_authentications_controller_spec.rb
index b0e82d3d66..c650957290 100644
--- a/spec/controllers/admin/two_factor_authentications_controller_spec.rb
+++ b/spec/controllers/admin/two_factor_authentications_controller_spec.rb
@@ -15,12 +15,12 @@ describe Admin::TwoFactorAuthenticationsController do
         user.update(otp_required_for_login: true)
       end
 
-      it 'redirects to admin accounts page' do
+      it 'redirects to admin account page' do
         delete :destroy, params: { user_id: user.id }
 
         user.reload
         expect(user.otp_enabled?).to eq false
-        expect(response).to redirect_to(admin_accounts_path)
+        expect(response).to redirect_to(admin_account_path(user.account_id))
       end
     end
 
@@ -38,13 +38,13 @@ describe Admin::TwoFactorAuthenticationsController do
                   nickname: 'Security Key')
       end
 
-      it 'redirects to admin accounts page' do
+      it 'redirects to admin account page' do
         delete :destroy, params: { user_id: user.id }
 
         user.reload
         expect(user.otp_enabled?).to eq false
         expect(user.webauthn_enabled?).to eq false
-        expect(response).to redirect_to(admin_accounts_path)
+        expect(response).to redirect_to(admin_account_path(user.account_id))
       end
     end
   end
diff --git a/spec/controllers/well_known/webfinger_controller_spec.rb b/spec/controllers/well_known/webfinger_controller_spec.rb
index 1075456f33..8574d369d1 100644
--- a/spec/controllers/well_known/webfinger_controller_spec.rb
+++ b/spec/controllers/well_known/webfinger_controller_spec.rb
@@ -24,6 +24,10 @@ describe WellKnown::WebfingerController, type: :controller do
         expect(response).to have_http_status(200)
       end
 
+      it 'does not set a Vary header' do
+        expect(response.headers['Vary']).to be_nil
+      end
+
       it 'returns application/jrd+json' do
         expect(response.media_type).to eq 'application/jrd+json'
       end
diff --git a/spec/models/tag_feed_spec.rb b/spec/models/tag_feed_spec.rb
index 76277c4678..45f7c3329b 100644
--- a/spec/models/tag_feed_spec.rb
+++ b/spec/models/tag_feed_spec.rb
@@ -37,7 +37,7 @@ describe TagFeed, type: :service do
       expect(results).to     include both
     end
 
-    it 'handles being passed non existant tag names' do
+    it 'handles being passed non existent tag names' do
       results = described_class.new(tag1, nil, any: ['wark']).get(20)
       expect(results).to     include status1
       expect(results).to_not include status2
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 5db249be2a..54bb6db7f9 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -344,6 +344,34 @@ RSpec.describe User, type: :model do
     end
   end
 
+  describe '#reset_password!' do
+    subject(:user) { Fabricate(:user, password: 'foobar12345') }
+
+    let!(:session_activation) { Fabricate(:session_activation, user: user) }
+    let!(:access_token) { Fabricate(:access_token, resource_owner_id: user.id) }
+    let!(:web_push_subscription) { Fabricate(:web_push_subscription, access_token: access_token) }
+
+    before do
+      user.reset_password!
+    end
+
+    it 'changes the password immediately' do
+      expect(user.external_or_valid_password?('foobar12345')).to be false
+    end
+
+    it 'deactivates all sessions' do
+      expect(user.session_activations.count).to eq 0
+    end
+
+    it 'revokes all access tokens' do
+      expect(Doorkeeper::AccessToken.active_for(user).count).to eq 0
+    end
+
+    it 'removes push subscriptions' do
+      expect(Web::PushSubscription.where(user: user).or(Web::PushSubscription.where(access_token: access_token)).count).to eq 0
+    end
+  end
+
   describe '#confirm!' do
     subject(:user) { Fabricate(:user, confirmed_at: confirmed_at) }
 
diff --git a/spec/services/bootstrap_timeline_service_spec.rb b/spec/services/bootstrap_timeline_service_spec.rb
index 880ca4f0db..16f3e9962e 100644
--- a/spec/services/bootstrap_timeline_service_spec.rb
+++ b/spec/services/bootstrap_timeline_service_spec.rb
@@ -1,4 +1,37 @@
 require 'rails_helper'
 
 RSpec.describe BootstrapTimelineService, type: :service do
+  subject { BootstrapTimelineService.new }
+
+  context 'when the new user has registered from an invite' do
+    let(:service)    { double }
+    let(:autofollow) { false }
+    let(:inviter)    { Fabricate(:user, confirmed_at: 2.days.ago) }
+    let(:invite)     { Fabricate(:invite, user: inviter, max_uses: nil, expires_at: 1.hour.from_now, autofollow: autofollow) }
+    let(:new_user)   { Fabricate(:user, invite_code: invite.code) }
+
+    before do
+      allow(FollowService).to receive(:new).and_return(service)
+      allow(service).to receive(:call)
+    end
+
+    context 'when the invite has auto-follow enabled' do
+      let(:autofollow) { true }
+
+      it 'calls FollowService to follow the inviter' do
+        subject.call(new_user.account)
+        expect(service).to have_received(:call).with(new_user.account, inviter.account)
+      end
+    end
+
+    context 'when the invite does not have auto-follow enable' do
+      let(:autofollow) { false }
+
+      it 'calls FollowService to follow the inviter' do
+        subject.call(new_user.account)
+        expect(service).to_not have_received(:call)
+      end
+    end
+
+  end
 end
diff --git a/yarn.lock b/yarn.lock
index d4bc6a5ccf..59dda7beb7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1129,6 +1129,20 @@
   resolved "https://registry.yarnpkg.com/@github/webauthn-json/-/webauthn-json-0.5.7.tgz#143bc67f6e0f75f8d188e565741507bb08c31214"
   integrity sha512-SUYsttDxFSvWvvJssJpwzjmRCqYfdfqC9VCmAHQYfdKCVelyJteCHo9/lK1CB72mx/jrl6cFNY08aua4J2jIyg==
 
+"@humanwhocodes/config-array@^0.5.0":
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/@humanwhocodes/config-array/-/config-array-0.5.0.tgz#1407967d4c6eecd7388f83acf1eaf4d0c6e58ef9"
+  integrity sha512-FagtKFz74XrTl7y6HCzQpwDfXP0yhxe9lHLD1UZxjvZIcbyRz8zTFF/yYNfSfzU414eDwZ1SrO0Qvtyf+wFMQg==
+  dependencies:
+    "@humanwhocodes/object-schema" "^1.2.0"
+    debug "^4.1.1"
+    minimatch "^3.0.4"
+
+"@humanwhocodes/object-schema@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@humanwhocodes/object-schema/-/object-schema-1.2.0.tgz#87de7af9c231826fdd68ac7258f77c429e0e5fcf"
+  integrity sha512-wdppn25U8z/2yiaT6YGquE6X8sSv7hNMWSXYSSU1jGv/yd6XqjXgTDJ8KP4NgjTXfJ3GbRjeeb8RTV7a/VpM+w==
+
 "@istanbuljs/load-nyc-config@^1.0.0":
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz#fd3db1d59ecf7cf121e80650bb86712f9b55eced"
@@ -1370,10 +1384,10 @@
   resolved "https://registry.yarnpkg.com/@polka/url/-/url-1.0.0-next.11.tgz#aeb16f50649a91af79dbe36574b66d0f9e4d9f71"
   integrity sha512-3NsZsJIA/22P3QUyrEDNA2D133H4j224twJrdipXN38dpnIOzAbUDtOwkcJ5pXmn75w7LSQDjA4tO9dm1XlqlA==
 
-"@rails/ujs@^6.1.3":
-  version "6.1.3"
-  resolved "https://registry.yarnpkg.com/@rails/ujs/-/ujs-6.1.3.tgz#90ef26caa0925492b1a3b1495db09cfbe49e745e"
-  integrity sha512-9mip5o+LVouWAqLMNJWhxda+D5uP+4RziNECgOGJlL6k3rc5SC/ljCHpV9Cym4i3oeGZkpZJ2tu4frCwt84kzQ==
+"@rails/ujs@^6.1.4":
+  version "6.1.4"
+  resolved "https://registry.yarnpkg.com/@rails/ujs/-/ujs-6.1.4.tgz#093d5341595a02089ed309dec40f3c37da7b1b10"
+  integrity sha512-O3lEzL5DYbxppMdsFSw36e4BHIlfz/xusynwXGv3l2lhSlvah41qviRpsoAlKXxl37nZAqK+UUF5cnGGK45Mfw==
 
 "@sinonjs/commons@^1.7.0":
   version "1.8.1"
@@ -4441,13 +4455,14 @@ eslint@^2.7.0:
     text-table "~0.2.0"
     user-home "^2.0.0"
 
-eslint@^7.29.0:
-  version "7.29.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.29.0.tgz#ee2a7648f2e729485e4d0bd6383ec1deabc8b3c0"
-  integrity sha512-82G/JToB9qIy/ArBzIWG9xvvwL3R86AlCjtGw+A29OMZDqhTybz/MByORSukGxeI+YPCR4coYyITKk8BFH9nDA==
+eslint@^7.30.0:
+  version "7.30.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.30.0.tgz#6d34ab51aaa56112fd97166226c9a97f505474f8"
+  integrity sha512-VLqz80i3as3NdloY44BQSJpFw534L9Oh+6zJOUaViV4JPd+DaHwutqP7tcpkW3YiXbK6s05RZl7yl7cQn+lijg==
   dependencies:
     "@babel/code-frame" "7.12.11"
     "@eslint/eslintrc" "^0.4.2"
+    "@humanwhocodes/config-array" "^0.5.0"
     ajv "^6.10.0"
     chalk "^4.0.0"
     cross-spawn "^7.0.2"
@@ -11715,10 +11730,10 @@ ws@^6.2.1:
   dependencies:
     async-limiter "~1.0.0"
 
-ws@^7.2.3, ws@^7.3.1, ws@^7.5.1:
-  version "7.5.1"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.1.tgz#44fc000d87edb1d9c53e51fbc69a0ac1f6871d66"
-  integrity sha512-2c6faOUH/nhoQN6abwMloF7Iyl0ZS2E9HGtsiLrWn0zOOMWlhtDmdf/uihDt6jnuCxgtwGBNy6Onsoy2s2O2Ow==
+ws@^7.2.3, ws@^7.3.1, ws@^7.5.2:
+  version "7.5.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.2.tgz#09cc8fea3bec1bc5ed44ef51b42f945be36900f6"
+  integrity sha512-lkF7AWRicoB9mAgjeKbGqVUekLnSNO4VjKVnuPHpQeOxZOErX6BPXwJk70nFslRCEEA8EVW7ZjKwXaP9N+1sKQ==
 
 xml-name-validator@^3.0.0:
   version "3.0.0"