diff --git a/Gemfile b/Gemfile
index 4fb7b2a730f..a0c8de164f3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rails', '4.2.5.2'
+gem 'rails', '5.0.0.1'
 gem 'sass-rails', '~> 5.0'
 gem 'uglifier', '>= 1.3.0'
 gem 'coffee-rails', '~> 4.1.0'
@@ -15,7 +15,6 @@ gem 'pg'
 gem 'dotenv-rails'
 gem 'font-awesome-rails'
 
-gem 'paranoia', '~> 2.0'
 gem 'paperclip', '~> 4.3'
 
 gem 'http'
@@ -34,15 +33,14 @@ gem 'fast_blank'
 gem 'htmlentities'
 gem 'onebox'
 gem 'simple_form'
-gem 'will_paginate', '~> 3.0.6'
+gem 'will_paginate'
 gem 'rack-attack'
-gem 'turbolinks', '~> 5.0.0.beta'
+gem 'turbolinks'
 gem 'sidekiq'
-gem 'sinatra', :require => nil
+gem 'sinatra', require: nil, github: 'sinatra'
 
 group :development, :test do
   gem 'rspec-rails'
-  gem 'quiet_assets'
   gem 'pry-rails'
   gem 'fuubar'
   gem 'fabrication'
@@ -55,7 +53,6 @@ group :test do
 end
 
 group :development do
-  gem 'web-console', '~> 2.0'
   gem 'rubocop', require: false
   gem 'better_errors'
   gem 'binding_of_caller'
diff --git a/Gemfile.lock b/Gemfile.lock
index 37ec40b4849..93ff50b6c93 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,44 +1,58 @@
+GIT
+  remote: git://github.com/sinatra/sinatra.git
+  revision: 6b5a0ef3a4598366138fefe3f2b696ddeb371f3c
+  specs:
+    rack-protection (2.0.0)
+      rack
+    sinatra (2.0.0.pre.alpha)
+      mustermann (~> 0.4)
+      rack (~> 2.0)
+      rack-protection (~> 2.0)
+      tilt (~> 2.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.2.5.2)
-      actionpack (= 4.2.5.2)
-      actionview (= 4.2.5.2)
-      activejob (= 4.2.5.2)
+    actioncable (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      nio4r (~> 1.2)
+      websocket-driver (~> 0.6.1)
+    actionmailer (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
       mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.5.2)
-      actionview (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
-      rack (~> 1.6)
-      rack-test (~> 0.6.2)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.0.0.1)
+      actionview (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      rack (~> 2.0)
+      rack-test (~> 0.6.3)
+      rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    actionview (5.0.0.1)
+      activesupport (= 5.0.0.1)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (4.2.5.2)
-      activesupport (= 4.2.5.2)
-      globalid (>= 0.3.0)
-    activemodel (4.2.5.2)
-      activesupport (= 4.2.5.2)
-      builder (~> 3.1)
-    activerecord (4.2.5.2)
-      activemodel (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
-      arel (~> 6.0)
-    activesupport (4.2.5.2)
+    activejob (5.0.0.1)
+      activesupport (= 5.0.0.1)
+      globalid (>= 0.3.6)
+    activemodel (5.0.0.1)
+      activesupport (= 5.0.0.1)
+    activerecord (5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      arel (~> 7.0)
+    activesupport (5.0.0.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    arel (6.0.3)
-    ast (2.2.0)
+    arel (7.1.1)
+    ast (2.3.0)
     bcrypt (3.1.11)
     better_errors (2.1.1)
       coderay (>= 1.0.0)
@@ -47,9 +61,9 @@ GEM
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     builder (3.2.2)
-    bullet (5.0.0)
+    bullet (5.3.0)
       activesupport (>= 3.0.0)
-      uniform_notifier (~> 1.9.0)
+      uniform_notifier (~> 1.10.0)
     climate_control (0.0.3)
       activesupport (>= 3.0)
     cocaine (0.5.8)
@@ -62,38 +76,37 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
-    concurrent-ruby (1.0.1)
+    concurrent-ruby (1.0.2)
     connection_pool (2.2.0)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     debug_inspector (0.0.2)
-    devise (3.5.6)
+    devise (4.2.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 3.2.6, < 5)
+      railties (>= 4.1.0, < 5.1)
       responders
-      thread_safe (~> 0.1)
       warden (~> 1.2.3)
     diff-lcs (1.2.5)
     docile (1.1.5)
-    domain_name (0.5.20160310)
+    domain_name (0.5.20160615)
       unf (>= 0.0.5, < 1.0.0)
-    doorkeeper (3.1.0)
-      railties (>= 3.2)
-    dotenv (2.1.0)
-    dotenv-rails (2.1.0)
-      dotenv (= 2.1.0)
+    doorkeeper (4.1.0)
+      railties (>= 4.2)
+    dotenv (2.1.1)
+    dotenv-rails (2.1.1)
+      dotenv (= 2.1.1)
       railties (>= 4.0, < 5.1)
     erubis (2.7.0)
-    execjs (2.6.0)
-    fabrication (2.15.0)
+    execjs (2.7.0)
+    fabrication (2.15.2)
     fast_blank (1.0.0)
-    font-awesome-rails (4.5.0.1)
+    font-awesome-rails (4.6.3.1)
       railties (>= 3.2, < 5.1)
-    fuubar (2.0.0)
+    fuubar (2.1.1)
       rspec (~> 3.0)
       ruby-progressbar (~> 1.4)
-    globalid (0.3.6)
+    globalid (0.3.7)
       activesupport (>= 4.1.0)
     goldfinger (1.0.2)
       addressable (~> 2.4)
@@ -125,7 +138,7 @@ GEM
     http-form_data (1.0.1)
     http_parser.rb (0.6.0)
     i18n (0.7.0)
-    jbuilder (2.4.1)
+    jbuilder (2.6.0)
       activesupport (>= 3.0.0, < 5.1)
       multi_json (~> 1.2)
     jquery-rails (4.1.1)
@@ -137,24 +150,30 @@ GEM
       addressable (~> 2.3)
     letter_opener (1.4.1)
       launchy (~> 2.2)
-    libv8 (3.16.14.13)
+    libv8 (3.16.14.15)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
-    mail (2.6.3)
-      mime-types (>= 1.16, < 3)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
     memory_profiler (0.9.6)
     method_source (0.8.2)
-    mime-types (2.99.1)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
     mimemagic (0.3.0)
-    mini_portile2 (2.0.0)
-    minitest (5.8.4)
+    mini_portile2 (2.1.0)
+    minitest (5.9.0)
     moneta (0.8.0)
-    multi_json (1.11.2)
-    mustache (1.0.2)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
-    oj (2.14.6)
-    onebox (1.5.35)
+    multi_json (1.12.1)
+    mustache (1.0.3)
+    mustermann (0.4.0)
+      tool (~> 0.2)
+    nio4r (1.2.1)
+    nokogiri (1.6.8)
+      mini_portile2 (~> 2.1.0)
+      pkg-config (~> 1.1.7)
+    oj (2.17.3)
+    onebox (1.5.48)
       htmlentities (~> 4.3.4)
       moneta (~> 0.8)
       multi_json (~> 1.11)
@@ -165,55 +184,48 @@ GEM
       addressable (~> 2.4)
       http (~> 1.0)
       nokogiri (~> 1.6)
-    paperclip (4.3.6)
+    paperclip (4.3.7)
       activemodel (>= 3.2.0)
       activesupport (>= 3.2.0)
       cocaine (~> 0.5.5)
       mime-types
       mimemagic (= 0.3.0)
-    paranoia (2.1.5)
-      activerecord (~> 4.0)
-    parser (2.3.0.6)
+    parser (2.3.1.2)
       ast (~> 2.2)
     pg (0.18.4)
+    pkg-config (1.1.7)
     powerpack (0.1.1)
-    pry (0.10.3)
+    pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
     pry-rails (0.3.4)
       pry (>= 0.9.10)
-    puma (3.2.0)
-    quiet_assets (1.1.0)
-      railties (>= 3.1, < 5.0)
-    rabl (0.12.0)
+    puma (3.6.0)
+    rabl (0.13.0)
       activesupport (>= 2.3.14)
-    rack (1.6.4)
-    rack-attack (4.4.1)
+    rack (2.0.1)
+    rack-attack (5.0.1)
       rack
-    rack-mini-profiler (0.9.9.2)
+    rack-mini-profiler (0.10.1)
       rack (>= 1.2.0)
-    rack-protection (1.5.3)
-      rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.5.2)
-      actionmailer (= 4.2.5.2)
-      actionpack (= 4.2.5.2)
-      actionview (= 4.2.5.2)
-      activejob (= 4.2.5.2)
-      activemodel (= 4.2.5.2)
-      activerecord (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    rails (5.0.0.1)
+      actioncable (= 5.0.0.1)
+      actionmailer (= 5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activerecord (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.5.2)
-      sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
-      activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
-      activesupport (>= 4.2.0.beta, < 5.0)
+      railties (= 5.0.0.1)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.1)
+      activesupport (>= 4.2.0, < 6.0)
       nokogiri (~> 1.6.0)
-      rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
     rails_12factor (0.0.3)
@@ -222,57 +234,58 @@ GEM
     rails_autolink (1.1.6)
       rails (> 3.1)
     rails_serve_static_assets (0.0.5)
-    rails_stdout_logging (0.0.4)
-    railties (4.2.5.2)
-      actionpack (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    rails_stdout_logging (0.0.5)
+    railties (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
-    rake (11.1.1)
+    rake (11.2.2)
     rdoc (4.2.2)
       json (~> 1.4)
-    redis (3.2.2)
+    redis (3.3.1)
     ref (2.0.0)
-    responders (2.1.1)
+    responders (2.3.0)
       railties (>= 4.2.0, < 5.1)
-    rspec (3.4.0)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
-    rspec-core (3.4.4)
-      rspec-support (~> 3.4.0)
-    rspec-expectations (3.4.0)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.2)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-mocks (3.4.1)
+      rspec-support (~> 3.5.0)
+    rspec-mocks (3.5.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-rails (3.4.2)
-      actionpack (>= 3.0, < 4.3)
-      activesupport (>= 3.0, < 4.3)
-      railties (>= 3.0, < 4.3)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
-      rspec-support (~> 3.4.0)
+      rspec-support (~> 3.5.0)
+    rspec-rails (3.5.1)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      railties (>= 3.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+      rspec-support (~> 3.5.0)
     rspec-sidekiq (2.2.0)
       rspec (~> 3.0, >= 3.0.0)
       sidekiq (>= 2.4.0)
-    rspec-support (3.4.1)
-    rubocop (0.38.0)
-      parser (>= 2.3.0.6, < 3.0)
+    rspec-support (3.5.0)
+    rubocop (0.42.0)
+      parser (>= 2.3.1.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
-    ruby-progressbar (1.7.5)
-    ruby_parser (3.8.1)
+    ruby-progressbar (1.8.1)
+    ruby_parser (3.8.2)
       sexp_processor (~> 4.1)
     safe_yaml (1.0.4)
-    sass (3.4.21)
-    sass-rails (5.0.4)
-      railties (>= 4.0.0, < 5.0)
+    sass (3.4.22)
+    sass-rails (5.0.6)
+      railties (>= 4.0.0, < 6)
       sass (~> 3.1)
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
@@ -281,27 +294,23 @@ GEM
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
     sexp_processor (4.7.0)
-    sidekiq (4.1.1)
+    sidekiq (4.1.2)
       concurrent-ruby (~> 1.0)
       connection_pool (~> 2.2, >= 2.2.0)
       redis (~> 3.2, >= 3.2.1)
     simple_form (3.2.1)
       actionpack (> 4, < 5.1)
       activemodel (> 4, < 5.1)
-    simplecov (0.11.2)
+    simplecov (0.12.0)
       docile (~> 1.1.0)
-      json (~> 1.8)
+      json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.0)
-    sinatra (1.4.7)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
     slop (3.6.0)
-    sprockets (3.5.2)
+    sprockets (3.7.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.0.4)
+    sprockets-rails (3.1.1)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
@@ -310,32 +319,30 @@ GEM
       ref
     thor (0.19.1)
     thread_safe (0.3.5)
-    tilt (2.0.2)
-    turbolinks (5.0.0.beta2)
-      turbolinks-source
-    turbolinks-source (5.0.0.beta3)
+    tilt (2.0.5)
+    tool (0.2.3)
+    turbolinks (5.0.1)
+      turbolinks-source (~> 5)
+    turbolinks-source (5.0.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    uglifier (2.7.2)
-      execjs (>= 0.3.0)
-      json (>= 1.8.0)
+    uglifier (3.0.1)
+      execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.2)
-    unicode-display_width (1.0.2)
-    uniform_notifier (1.9.0)
+    unicode-display_width (1.1.0)
+    uniform_notifier (1.10.0)
     warden (1.2.6)
       rack (>= 1.0)
-    web-console (2.3.0)
-      activemodel (>= 4.0)
-      binding_of_caller (>= 0.7.2)
-      railties (>= 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
-    webmock (1.24.2)
+    webmock (2.1.0)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
-    will_paginate (3.0.7)
+    websocket-driver (0.6.4)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.2)
+    will_paginate (3.1.0)
 
 PLATFORMS
   ruby
@@ -367,15 +374,13 @@ DEPENDENCIES
   onebox
   ostatus2
   paperclip (~> 4.3)
-  paranoia (~> 2.0)
   pg
   pry-rails
   puma
-  quiet_assets
   rabl
   rack-attack
   rack-mini-profiler
-  rails (= 4.2.5.2)
+  rails (= 5.0.0.1)
   rails_12factor
   rails_autolink
   redis (~> 3.2)
@@ -387,13 +392,12 @@ DEPENDENCIES
   sidekiq
   simple_form
   simplecov
-  sinatra
+  sinatra!
   therubyracer
-  turbolinks (~> 5.0.0.beta)
+  turbolinks
   uglifier (>= 1.3.0)
-  web-console (~> 2.0)
   webmock
-  will_paginate (~> 3.0.6)
+  will_paginate
 
 BUNDLED WITH
-   1.11.2
+   1.12.5
diff --git a/app/controllers/api/salmon_controller.rb b/app/controllers/api/salmon_controller.rb
index b15aefee9e1..329b258a41f 100644
--- a/app/controllers/api/salmon_controller.rb
+++ b/app/controllers/api/salmon_controller.rb
@@ -4,7 +4,7 @@ class Api::SalmonController < ApiController
 
   def update
     ProcessInteractionService.new.(request.body.read, @account)
-    render nothing: true, status: 201
+    head 201
   end
 
   private
diff --git a/app/controllers/api/subscriptions_controller.rb b/app/controllers/api/subscriptions_controller.rb
index 91b987ce43f..e923b9b663f 100644
--- a/app/controllers/api/subscriptions_controller.rb
+++ b/app/controllers/api/subscriptions_controller.rb
@@ -4,9 +4,9 @@ class Api::SubscriptionsController < ApiController
 
   def show
     if @account.subscription(api_subscription_url(@account.id)).valid?(params['hub.topic'], params['hub.verify_token'])
-      render text: HTMLEntities.new.encode(params['hub.challenge']), status: 200
+      render plain: HTMLEntities.new.encode(params['hub.challenge']), status: 200
     else
-      render nothing: true, status: 404
+      head 404
     end
   end
 
@@ -15,9 +15,9 @@ class Api::SubscriptionsController < ApiController
 
     if @account.subscription(api_subscription_url(@account.id)).verify(body, request.headers['HTTP_X_HUB_SIGNATURE'])
       ProcessFeedService.new.(body, @account)
-      render nothing: true, status: 201
+      head 201
     else
-      render nothing: true, status: 202
+      head 202
     end
   end
 
diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
index 35f1e62c562..8a27124760a 100644
--- a/app/controllers/api_controller.rb
+++ b/app/controllers/api_controller.rb
@@ -1,6 +1,6 @@
 class ApiController < ApplicationController
   protect_from_forgery with: :null_session
-  skip_before_filter :verify_authenticity_token
+  skip_before_action :verify_authenticity_token
 
   protected
 
diff --git a/app/controllers/auth/registrations_controller.rb b/app/controllers/auth/registrations_controller.rb
index ad0fd4437b5..8472edc6920 100644
--- a/app/controllers/auth/registrations_controller.rb
+++ b/app/controllers/auth/registrations_controller.rb
@@ -11,8 +11,8 @@ class Auth::RegistrationsController < Devise::RegistrationsController
   end
 
   def configure_sign_up_params
-    devise_parameter_sanitizer.for(:sign_up) do |u|
-      u.permit(:email, :password, :password_confirmation, account_attributes: [:username])
+    devise_parameter_sanitizer.permit(:sign_up) do |u|
+      u.permit({ account_attributes: [:username] }, :email, :password, :password_confirmation)
     end
   end
 
diff --git a/app/controllers/oauth/applications_controller.rb b/app/controllers/oauth/applications_controller.rb
index 4614ef2f751..47935bf7cfd 100644
--- a/app/controllers/oauth/applications_controller.rb
+++ b/app/controllers/oauth/applications_controller.rb
@@ -1,5 +1,5 @@
 class Oauth::ApplicationsController < Doorkeeper::ApplicationsController
-  before_filter :authenticate_user!
+  before_action :authenticate_user!
 
   def index
     @applications = current_user.oauth_applications
diff --git a/app/controllers/xrd_controller.rb b/app/controllers/xrd_controller.rb
index fa67b2baa2c..1e39a3e4c79 100644
--- a/app/controllers/xrd_controller.rb
+++ b/app/controllers/xrd_controller.rb
@@ -1,5 +1,5 @@
 class XrdController < ApplicationController
-  before_filter :set_format
+  before_action :set_format
 
   def host_meta
     @webfinger_template = "#{webfinger_url}?resource={uri}"
@@ -10,7 +10,7 @@ class XrdController < ApplicationController
     @canonical_account_uri = "acct:#{@account.username}@#{Rails.configuration.x.local_domain}"
     @magic_key = pem_to_magic_key(@account.keypair.public_key)
   rescue ActiveRecord::RecordNotFound
-    render nothing: true, status: 404
+    head 404
   end
 
   private
diff --git a/app/models/account.rb b/app/models/account.rb
index f61f4c7656b..cc050dfa32c 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -1,10 +1,10 @@
-class Account < ActiveRecord::Base
+class Account < ApplicationRecord
   include Targetable
 
   # Local users
   has_one :user, inverse_of: :account
-  validates :username, uniqueness: { scope: :domain, case_sensitive: false }, if:     'local?'
-  validates :username, uniqueness: { scope: :domain, case_sensitive: true },  unless: 'local?'
+  validates :username, presence: true, uniqueness: { scope: :domain, case_sensitive: false }, if:     'local?'
+  validates :username, presence: true, uniqueness: { scope: :domain, case_sensitive: true },  unless: 'local?'
 
   # Avatar upload
   has_attached_file :avatar, styles: { large: '300x300#', medium: '96x96#', small: '48x48#' }, default_url: 'avatars/missing.png'
diff --git a/app/models/application_record.rb b/app/models/application_record.rb
new file mode 100644
index 00000000000..10a4cba84df
--- /dev/null
+++ b/app/models/application_record.rb
@@ -0,0 +1,3 @@
+class ApplicationRecord < ActiveRecord::Base
+  self.abstract_class = true
+end
diff --git a/app/models/favourite.rb b/app/models/favourite.rb
index 46310a5ff50..6032e539cf5 100644
--- a/app/models/favourite.rb
+++ b/app/models/favourite.rb
@@ -1,4 +1,4 @@
-class Favourite < ActiveRecord::Base
+class Favourite < ApplicationRecord
   include Streamable
 
   belongs_to :account, inverse_of: :favourites
diff --git a/app/models/follow.rb b/app/models/follow.rb
index 94263b1a7c1..456e2c4f46e 100644
--- a/app/models/follow.rb
+++ b/app/models/follow.rb
@@ -1,4 +1,4 @@
-class Follow < ActiveRecord::Base
+class Follow < ApplicationRecord
   include Streamable
 
   belongs_to :account
diff --git a/app/models/mention.rb b/app/models/mention.rb
index 9fefa657a40..b39fa2cbbc7 100644
--- a/app/models/mention.rb
+++ b/app/models/mention.rb
@@ -1,4 +1,4 @@
-class Mention < ActiveRecord::Base
+class Mention < ApplicationRecord
   belongs_to :account, inverse_of: :mentions
   belongs_to :status
 
diff --git a/app/models/status.rb b/app/models/status.rb
index 7ea92df2c99..14a698aae81 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -1,4 +1,4 @@
-class Status < ActiveRecord::Base
+class Status < ApplicationRecord
   include Paginable
   include Streamable
 
diff --git a/app/models/stream_entry.rb b/app/models/stream_entry.rb
index 2972d94f61a..165f62f2008 100644
--- a/app/models/stream_entry.rb
+++ b/app/models/stream_entry.rb
@@ -1,4 +1,4 @@
-class StreamEntry < ActiveRecord::Base
+class StreamEntry < ApplicationRecord
   include Paginable
 
   belongs_to :account, inverse_of: :stream_entries
diff --git a/app/models/user.rb b/app/models/user.rb
index a80efb50d19..71e310cc86f 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,4 +1,4 @@
-class User < ActiveRecord::Base
+class User < ApplicationRecord
   devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable
 
   belongs_to :account, inverse_of: :user
diff --git a/bin/rails b/bin/rails
index 5191e6927af..07396602377 100755
--- a/bin/rails
+++ b/bin/rails
@@ -1,4 +1,4 @@
 #!/usr/bin/env ruby
-APP_PATH = File.expand_path('../../config/application', __FILE__)
+APP_PATH = File.expand_path('../config/application', __dir__)
 require_relative '../config/boot'
 require 'rails/commands'
diff --git a/bin/setup b/bin/setup
index acdb2c1389c..e620b4dadb2 100755
--- a/bin/setup
+++ b/bin/setup
@@ -1,29 +1,34 @@
 #!/usr/bin/env ruby
 require 'pathname'
+require 'fileutils'
+include FileUtils
 
 # path to your application root.
-APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+APP_ROOT = Pathname.new File.expand_path('../../', __FILE__)
 
-Dir.chdir APP_ROOT do
+def system!(*args)
+  system(*args) || abort("\n== Command #{args} failed ==")
+end
+
+chdir APP_ROOT do
   # This script is a starting point to setup your application.
-  # Add necessary setup steps to this file:
+  # Add necessary setup steps to this file.
 
-  puts "== Installing dependencies =="
-  system "gem install bundler --conservative"
-  system "bundle check || bundle install"
+  puts '== Installing dependencies =='
+  system! 'gem install bundler --conservative'
+  system('bundle check') || system!('bundle install')
 
   # puts "\n== Copying sample files =="
-  # unless File.exist?("config/database.yml")
-  #   system "cp config/database.yml.sample config/database.yml"
+  # unless File.exist?('config/database.yml')
+  #   cp 'config/database.yml.sample', 'config/database.yml'
   # end
 
   puts "\n== Preparing database =="
-  system "bin/rake db:setup"
+  system! 'bin/rails db:setup'
 
   puts "\n== Removing old logs and tempfiles =="
-  system "rm -f log/*"
-  system "rm -rf tmp/cache"
+  system! 'bin/rails log:clear tmp:clear'
 
   puts "\n== Restarting application server =="
-  system "touch tmp/restart.txt"
+  system! 'bin/rails restart'
 end
diff --git a/bin/update b/bin/update
new file mode 100755
index 00000000000..a8e4462f203
--- /dev/null
+++ b/bin/update
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+require 'pathname'
+require 'fileutils'
+include FileUtils
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../', __FILE__)
+
+def system!(*args)
+  system(*args) || abort("\n== Command #{args} failed ==")
+end
+
+chdir APP_ROOT do
+  # This script is a way to update your development environment automatically.
+  # Add necessary update steps to this file.
+
+  puts '== Installing dependencies =='
+  system! 'gem install bundler --conservative'
+  system('bundle check') || system!('bundle install')
+
+  puts "\n== Updating database =="
+  system! 'bin/rails db:migrate'
+
+  puts "\n== Removing old logs and tempfiles =="
+  system! 'bin/rails log:clear tmp:clear'
+
+  puts "\n== Restarting application server =="
+  system! 'bin/rails restart'
+end
diff --git a/config/application.rb b/config/application.rb
index 7d6182ecca3..c3ea5851a40 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -1,4 +1,4 @@
-require File.expand_path('../boot', __FILE__)
+require_relative 'boot'
 
 require 'rails/all'
 
@@ -22,9 +22,6 @@ module Mastodon
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     # config.i18n.default_locale = :de
 
-    # Do not swallow errors in after_commit/after_rollback callbacks.
-    config.active_record.raise_in_transactional_callbacks = true
-
     config.paths.add File.join('app', 'api'), glob: File.join('**', '*.rb')
     config.autoload_paths += Dir[Rails.root.join('app', 'api', '*')]
 
diff --git a/config/boot.rb b/config/boot.rb
index 6b750f00b1d..30f5120df69 100644
--- a/config/boot.rb
+++ b/config/boot.rb
@@ -1,3 +1,3 @@
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 
 require 'bundler/setup' # Set up gems listed in the Gemfile.
diff --git a/config/cable.yml b/config/cable.yml
new file mode 100644
index 00000000000..b544be4b4ea
--- /dev/null
+++ b/config/cable.yml
@@ -0,0 +1,9 @@
+development:
+  adapter: async
+
+test:
+  adapter: async
+
+production:
+  adapter: redis
+  url: redis://<%= ENV['REDIS_HOST'] || 'localhost' %>:<%= ENV['REDIS_PORT'] || 6379 %>/1
diff --git a/config/environment.rb b/config/environment.rb
index ee8d90dc651..426333bb469 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -1,5 +1,5 @@
 # Load the Rails application.
-require File.expand_path('../application', __FILE__)
+require_relative 'application'
 
 # Initialize the Rails application.
 Rails.application.initialize!
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 5646308135a..1affeca118b 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -9,12 +9,26 @@ Rails.application.configure do
   # Do not eager load code on boot.
   config.eager_load = false
 
-  # Show full error reports and disable caching.
-  config.consider_all_requests_local       = true
-  config.action_controller.perform_caching = false
+  # Show full error reports.
+  config.consider_all_requests_local= true
+
+  # Enable/disable caching. By default caching is disabled.
+  if Rails.root.join('tmp/caching-dev.txt').exist?
+    config.action_controller.perform_caching = true
+
+    config.cache_store = :memory_store
+    config.public_file_server.headers = {
+      'Cache-Control' => 'public, max-age=172800'
+    }
+  else
+    config.action_controller.perform_caching = false
+
+    config.cache_store = :null_store
+  end
 
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
+  config.action_mailer.perform_caching = false
 
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
@@ -27,9 +41,8 @@ Rails.application.configure do
   # number of complex assets.
   config.assets.debug = true
 
-  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
-  # yet still be able to expire them through the digest params.
-  config.assets.digest = true
+  # Suppress logger output for asset requests.
+  config.assets.quiet = true
 
   # Adds additional error checking when serving assets at runtime.
   # Checks for improperly declared sprockets dependencies.
@@ -39,6 +52,10 @@ Rails.application.configure do
   # Raises error for missing translations
   # config.action_view.raise_on_missing_translations = true
 
+  # Use an evented file watcher to asynchronously detect changes in source code,
+  # routes, locales, etc. This feature depends on the listen gem.
+  # config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+
   config.action_mailer.delivery_method = :letter_opener
 
   config.after_initialize do
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 182f154934a..4c4ed760c61 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -14,15 +14,9 @@ Rails.application.configure do
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
 
-  # Enable Rack::Cache to put a simple HTTP cache in front of your application
-  # Add `rack-cache` to your Gemfile before enabling this.
-  # For large-scale production use, consider using a caching reverse proxy like
-  # NGINX, varnish or squid.
-  # config.action_dispatch.rack_cache = true
-
   # Disable serving static files from the `/public` folder by default since
   # Apache or NGINX already handles this.
-  config.serve_static_files = true
+  config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
   # Compress JavaScripts and CSS.
   config.assets.js_compressor = :uglifier
@@ -31,10 +25,6 @@ Rails.application.configure do
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
-  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
-  # yet still be able to expire them through the digest params.
-  config.assets.digest = true
-
   # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
 
   # Specifies the header that your server uses for sending files.
@@ -49,7 +39,7 @@ Rails.application.configure do
   config.log_level = :debug
 
   # Prepend all log lines with the following tags.
-  # config.log_tags = [ :subdomain, :uuid ]
+  config.log_tags = [ :request_id ]
 
   # Use a different logger for distributed setups.
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
@@ -77,6 +67,8 @@ Rails.application.configure do
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
 
+  config.action_mailer.perform_caching = false
+
   # E-mails
   config.action_mailer.smtp_settings = {
     :port           => ENV['SMTP_PORT'],
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 1ef379f40d6..fea1c51fdff 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -13,8 +13,10 @@ Rails.application.configure do
   config.eager_load = false
 
   # Configure static file server for tests with Cache-Control for performance.
-  config.serve_static_files   = true
-  config.static_cache_control = 'public, max-age=3600'
+  config.public_file_server.enabled = true
+  config.public_file_server.headers = {
+    'Cache-Control' => 'public, max-age=3600'
+  }
   config.assets.digest = false
 
   # Show full error reports and disable caching.
@@ -31,9 +33,7 @@ Rails.application.configure do
   # The :test delivery method accumulates sent emails in the
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
-
-  # Randomize the order test cases are executed.
-  config.active_support.test_order = :random
+  config.action_mailer.perform_caching = false
 
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
diff --git a/config/initializers/application_controller_renderer.rb b/config/initializers/application_controller_renderer.rb
new file mode 100644
index 00000000000..51639b67a00
--- /dev/null
+++ b/config/initializers/application_controller_renderer.rb
@@ -0,0 +1,6 @@
+# Be sure to restart your server when you modify this file.
+
+# ApplicationController.renderer.defaults.merge!(
+#   http_host: 'example.org',
+#   https: false
+# )
diff --git a/config/initializers/cookies_serializer.rb b/config/initializers/cookies_serializer.rb
index 7f70458dee6..5a6a32d371f 100644
--- a/config/initializers/cookies_serializer.rb
+++ b/config/initializers/cookies_serializer.rb
@@ -1,3 +1,5 @@
 # Be sure to restart your server when you modify this file.
 
+# Specify a serializer for the signed and encrypted cookie jars.
+# Valid options are :json, :marshal, and :hybrid.
 Rails.application.config.action_dispatch.cookies_serializer = :json
diff --git a/config/initializers/new_framework_defaults.rb b/config/initializers/new_framework_defaults.rb
new file mode 100644
index 00000000000..f6e72335f6a
--- /dev/null
+++ b/config/initializers/new_framework_defaults.rb
@@ -0,0 +1,23 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains migration options to ease your Rails 5.0 upgrade.
+#
+# Once upgraded flip defaults one by one to migrate to the new default.
+#
+# Read the Rails 5.0 release notes for more info on each option.
+
+# Enable per-form CSRF tokens. Previous versions had false.
+Rails.application.config.action_controller.per_form_csrf_tokens = false
+
+# Enable origin-checking CSRF mitigation. Previous versions had false.
+Rails.application.config.action_controller.forgery_protection_origin_check = false
+
+# Make Ruby 2.4 preserve the timezone of the receiver when calling `to_time`.
+# Previous versions had false.
+ActiveSupport.to_time_preserves_timezone = false
+
+# Require `belongs_to` associations by default. Previous versions had false.
+Rails.application.config.active_record.belongs_to_required_by_default = false
+
+# Do not halt callback chains when a callback returns false. Previous versions had true.
+ActiveSupport.halt_callback_chains_on_return_false = true
diff --git a/config/initializers/wrap_parameters.rb b/config/initializers/wrap_parameters.rb
index 33725e95fd2..bbfc3961bff 100644
--- a/config/initializers/wrap_parameters.rb
+++ b/config/initializers/wrap_parameters.rb
@@ -5,10 +5,10 @@
 
 # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
 ActiveSupport.on_load(:action_controller) do
-  wrap_parameters format: [:json] if respond_to?(:wrap_parameters)
+  wrap_parameters format: [:json]
 end
 
 # To enable root element in JSON for ActiveRecord objects.
 # ActiveSupport.on_load(:active_record) do
-#  self.include_root_in_json = true
+#   self.include_root_in_json = true
 # end
diff --git a/config/puma.rb b/config/puma.rb
index 49f4b974da9..e8212125f94 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -1,13 +1,47 @@
-workers Integer(ENV['WEB_CONCURRENCY'] || 2)
-threads_count = Integer(ENV['MAX_THREADS'] || 5)
+# Puma can serve each request in a thread from an internal thread pool.
+# The `threads` method setting takes two numbers a minimum and maximum.
+# Any libraries that use thread pools should be configured to match
+# the maximum value specified for Puma. Default is set to 5 threads for minimum
+# and maximum, this matches the default thread size of Active Record.
+#
+threads_count = ENV.fetch("MAX_THREADS") { 5 }.to_i
 threads threads_count, threads_count
 
-preload_app!
+# Specifies the `port` that Puma will listen on to receive requests, default is 3000.
+#
+port        ENV.fetch("PORT") { 3000 }
 
-rackup      DefaultRackup
-port        ENV['PORT']     || 3000
-environment ENV['RACK_ENV'] || 'development'
+# Specifies the `environment` that Puma will run in.
+#
+environment ENV.fetch("RAILS_ENV") { "development" }
 
-on_worker_boot do
-  ActiveRecord::Base.establish_connection
-end
+# Specifies the number of `workers` to boot in clustered mode.
+# Workers are forked webserver processes. If using threads and workers together
+# the concurrency of the application would be max `threads` * `workers`.
+# Workers do not work on JRuby or Windows (both of which do not support
+# processes).
+#
+workers ENV.fetch("WEB_CONCURRENCY") { 2 }
+
+# Use the `preload_app!` method when specifying a `workers` number.
+# This directive tells Puma to first boot the application and load code
+# before forking the application. This takes advantage of Copy On Write
+# process behavior so workers use less memory. If you use this option
+# you need to make sure to reconnect any threads in the `on_worker_boot`
+# block.
+#
+# preload_app!
+
+# The code in the `on_worker_boot` will be called if you are using
+# clustered mode by specifying a number of `workers`. After each worker
+# process is booted this block will be run, if you are using `preload_app!`
+# option you will want to use this block to reconnect to any threads
+# or connections that may have been created at application boot, Ruby
+# cannot share connections between processes.
+#
+# on_worker_boot do
+#   ActiveRecord::Base.establish_connection if defined?(ActiveRecord)
+# end
+
+# Allow puma to be restarted by `rails restart` command.
+plugin :tmp_restart
diff --git a/config/secrets.yml b/config/secrets.yml
index 68c9408d578..51681d7a5c8 100644
--- a/config/secrets.yml
+++ b/config/secrets.yml
@@ -5,7 +5,7 @@
 
 # Make sure the secret is at least 30 characters and all random,
 # no regular words or you'll be exposed to dictionary attacks.
-# You can use `rake secret` to generate a secure secret key.
+# You can use `rails secret` to generate a secure secret key.
 
 # Make sure the secrets in this file are kept private
 # if you're sharing your code publicly.
diff --git a/db/schema.rb b/db/schema.rb
index 03d336d5a86..45ab70855ab 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1,4 +1,3 @@
-# encoding: UTF-8
 # This file is auto-generated from the current state of the database. Instead
 # of editing this file, please use the migrations feature of Active Record to
 # incrementally modify your database, and then regenerate this schema definition.
@@ -41,37 +40,33 @@ ActiveRecord::Schema.define(version: 20160325130944) do
     t.integer  "header_file_size"
     t.datetime "header_updated_at"
     t.string   "avatar_remote_url"
+    t.index ["username", "domain"], name: "index_accounts_on_username_and_domain", unique: true, using: :btree
   end
 
-  add_index "accounts", ["username", "domain"], name: "index_accounts_on_username_and_domain", unique: true, using: :btree
-
   create_table "favourites", force: :cascade do |t|
     t.integer  "account_id", null: false
     t.integer  "status_id",  null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.index ["account_id", "status_id"], name: "index_favourites_on_account_id_and_status_id", unique: true, using: :btree
   end
 
-  add_index "favourites", ["account_id", "status_id"], name: "index_favourites_on_account_id_and_status_id", unique: true, using: :btree
-
   create_table "follows", force: :cascade do |t|
     t.integer  "account_id",        null: false
     t.integer  "target_account_id", null: false
     t.datetime "created_at",        null: false
     t.datetime "updated_at",        null: false
+    t.index ["account_id", "target_account_id"], name: "index_follows_on_account_id_and_target_account_id", unique: true, using: :btree
   end
 
-  add_index "follows", ["account_id", "target_account_id"], name: "index_follows_on_account_id_and_target_account_id", unique: true, using: :btree
-
   create_table "mentions", force: :cascade do |t|
     t.integer  "account_id"
     t.integer  "status_id"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.index ["account_id", "status_id"], name: "index_mentions_on_account_id_and_status_id", unique: true, using: :btree
   end
 
-  add_index "mentions", ["account_id", "status_id"], name: "index_mentions_on_account_id_and_status_id", unique: true, using: :btree
-
   create_table "oauth_access_grants", force: :cascade do |t|
     t.integer  "resource_owner_id", null: false
     t.integer  "application_id",    null: false
@@ -81,10 +76,9 @@ ActiveRecord::Schema.define(version: 20160325130944) do
     t.datetime "created_at",        null: false
     t.datetime "revoked_at"
     t.string   "scopes"
+    t.index ["token"], name: "index_oauth_access_grants_on_token", unique: true, using: :btree
   end
 
-  add_index "oauth_access_grants", ["token"], name: "index_oauth_access_grants_on_token", unique: true, using: :btree
-
   create_table "oauth_access_tokens", force: :cascade do |t|
     t.integer  "resource_owner_id"
     t.integer  "application_id"
@@ -94,12 +88,11 @@ ActiveRecord::Schema.define(version: 20160325130944) do
     t.datetime "revoked_at"
     t.datetime "created_at",        null: false
     t.string   "scopes"
+    t.index ["refresh_token"], name: "index_oauth_access_tokens_on_refresh_token", unique: true, using: :btree
+    t.index ["resource_owner_id"], name: "index_oauth_access_tokens_on_resource_owner_id", using: :btree
+    t.index ["token"], name: "index_oauth_access_tokens_on_token", unique: true, using: :btree
   end
 
-  add_index "oauth_access_tokens", ["refresh_token"], name: "index_oauth_access_tokens_on_refresh_token", unique: true, using: :btree
-  add_index "oauth_access_tokens", ["resource_owner_id"], name: "index_oauth_access_tokens_on_resource_owner_id", using: :btree
-  add_index "oauth_access_tokens", ["token"], name: "index_oauth_access_tokens_on_token", unique: true, using: :btree
-
   create_table "oauth_applications", force: :cascade do |t|
     t.string   "name",                      null: false
     t.string   "uid",                       null: false
@@ -110,11 +103,10 @@ ActiveRecord::Schema.define(version: 20160325130944) do
     t.datetime "updated_at"
     t.integer  "owner_id"
     t.string   "owner_type"
+    t.index ["owner_id", "owner_type"], name: "index_oauth_applications_on_owner_id_and_owner_type", using: :btree
+    t.index ["uid"], name: "index_oauth_applications_on_uid", unique: true, using: :btree
   end
 
-  add_index "oauth_applications", ["owner_id", "owner_type"], name: "index_oauth_applications_on_owner_id_and_owner_type", using: :btree
-  add_index "oauth_applications", ["uid"], name: "index_oauth_applications_on_uid", unique: true, using: :btree
-
   create_table "statuses", force: :cascade do |t|
     t.string   "uri"
     t.integer  "account_id",                  null: false
@@ -124,24 +116,22 @@ ActiveRecord::Schema.define(version: 20160325130944) do
     t.integer  "in_reply_to_id"
     t.integer  "reblog_of_id"
     t.string   "url"
+    t.index ["account_id"], name: "index_statuses_on_account_id", using: :btree
+    t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id", using: :btree
+    t.index ["reblog_of_id"], name: "index_statuses_on_reblog_of_id", using: :btree
+    t.index ["uri"], name: "index_statuses_on_uri", unique: true, using: :btree
   end
 
-  add_index "statuses", ["account_id"], name: "index_statuses_on_account_id", using: :btree
-  add_index "statuses", ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id", using: :btree
-  add_index "statuses", ["reblog_of_id"], name: "index_statuses_on_reblog_of_id", using: :btree
-  add_index "statuses", ["uri"], name: "index_statuses_on_uri", unique: true, using: :btree
-
   create_table "stream_entries", force: :cascade do |t|
     t.integer  "account_id"
     t.integer  "activity_id"
     t.string   "activity_type"
     t.datetime "created_at",    null: false
     t.datetime "updated_at",    null: false
+    t.index ["account_id"], name: "index_stream_entries_on_account_id", using: :btree
+    t.index ["activity_id", "activity_type"], name: "index_stream_entries_on_activity_id_and_activity_type", using: :btree
   end
 
-  add_index "stream_entries", ["account_id"], name: "index_stream_entries_on_account_id", using: :btree
-  add_index "stream_entries", ["activity_id", "activity_type"], name: "index_stream_entries_on_activity_id_and_activity_type", using: :btree
-
   create_table "users", force: :cascade do |t|
     t.string   "email",                  default: "",    null: false
     t.integer  "account_id",                             null: false
@@ -157,10 +147,9 @@ ActiveRecord::Schema.define(version: 20160325130944) do
     t.inet     "current_sign_in_ip"
     t.inet     "last_sign_in_ip"
     t.boolean  "admin",                  default: false
+    t.index ["account_id"], name: "index_users_on_account_id", using: :btree
+    t.index ["email"], name: "index_users_on_email", unique: true, using: :btree
+    t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
   end
 
-  add_index "users", ["account_id"], name: "index_users_on_account_id", using: :btree
-  add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
-  add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
-
 end
diff --git a/spec/controllers/accounts_controller_spec.rb b/spec/controllers/accounts_controller_spec.rb
index b0a5181dac0..c5abe63a8d0 100644
--- a/spec/controllers/accounts_controller_spec.rb
+++ b/spec/controllers/accounts_controller_spec.rb
@@ -5,26 +5,26 @@ RSpec.describe AccountsController, type: :controller do
 
   describe 'GET #show' do
     it 'returns http success' do
-      get :show, username: alice.username
+      get :show, params: { username: alice.username }
       expect(response).to have_http_status(:success)
     end
 
     it 'returns http success with Atom' do
-      get :show, username: alice.username, format: 'atom'
+      get :show, params: { username: alice.username }, format: 'atom'
       expect(response).to have_http_status(:success)
     end
   end
 
   describe 'GET #followers' do
     it 'returns http success' do
-      get :followers, username: alice.username
+      get :followers, params: { username: alice.username }
       expect(response).to have_http_status(:success)
     end
   end
 
   describe 'GET #following' do
     it 'returns http success' do
-      get :following, username: alice.username
+      get :following, params: { username: alice.username }
       expect(response).to have_http_status(:success)
     end
   end
diff --git a/spec/controllers/api/accounts/lookup_controller_spec.rb b/spec/controllers/api/accounts/lookup_controller_spec.rb
index 46c904b5a3e..043df8c86ce 100644
--- a/spec/controllers/api/accounts/lookup_controller_spec.rb
+++ b/spec/controllers/api/accounts/lookup_controller_spec.rb
@@ -12,7 +12,7 @@ RSpec.describe Api::Accounts::LookupController, type: :controller do
     before do
       Fabricate(:account, username: 'bob')
       Fabricate(:account, username: 'mcbeth')
-      get :index, usernames: 'alice,bob,mcbeth'
+      get :index, params: { usernames: 'alice,bob,mcbeth' }
     end
 
     it 'returns http success' do
diff --git a/spec/controllers/api/accounts_controller_spec.rb b/spec/controllers/api/accounts_controller_spec.rb
index 7bcb1a788d2..dd060ddaa4a 100644
--- a/spec/controllers/api/accounts_controller_spec.rb
+++ b/spec/controllers/api/accounts_controller_spec.rb
@@ -10,28 +10,28 @@ RSpec.describe Api::AccountsController, type: :controller do
 
   describe 'GET #show' do
     it 'returns http success' do
-      get :show, id: user.account.id
+      get :show, params: { id: user.account.id }
       expect(response).to have_http_status(:success)
     end
   end
 
   describe 'GET #statuses' do
     it 'returns http success' do
-      get :statuses, id: user.account.id
+      get :statuses, params: { id: user.account.id }
       expect(response).to have_http_status(:success)
     end
   end
 
   describe 'GET #followers' do
     it 'returns http success' do
-      get :followers, id: user.account.id
+      get :followers, params: { id: user.account.id }
       expect(response).to have_http_status(:success)
     end
   end
 
   describe 'GET #following' do
     it 'returns http success' do
-      get :following, id: user.account.id
+      get :following, params: { id: user.account.id }
       expect(response).to have_http_status(:success)
     end
   end
@@ -40,7 +40,7 @@ RSpec.describe Api::AccountsController, type: :controller do
     let(:other_account) { Fabricate(:account, username: 'bob') }
 
     before do
-      post :follow, id: other_account.id
+      post :follow, params: { id: other_account.id }
     end
 
     it 'returns http success' do
@@ -57,7 +57,7 @@ RSpec.describe Api::AccountsController, type: :controller do
 
     before do
       user.account.follow!(other_account)
-      post :unfollow, id: other_account.id
+      post :unfollow, params: { id: other_account.id }
     end
 
     it 'returns http success' do
diff --git a/spec/controllers/api/follows_controller_spec.rb b/spec/controllers/api/follows_controller_spec.rb
index e9bb1bfa535..28646525131 100644
--- a/spec/controllers/api/follows_controller_spec.rb
+++ b/spec/controllers/api/follows_controller_spec.rb
@@ -18,7 +18,7 @@ RSpec.describe Api::FollowsController, type: :controller do
       stub_request(:post, "https://quitter.no/main/salmon/user/7477").to_return(:status => 200, :body => "", :headers => {})
       stub_request(:post, "https://pubsubhubbub.superfeedr.com/").to_return(:status => 200, :body => "", :headers => {})
 
-      post :create, uri: 'gargron@quitter.no'
+      post :create, params: { uri: 'gargron@quitter.no' }
     end
 
     it 'returns http success' do
diff --git a/spec/controllers/api/salmon_controller_spec.rb b/spec/controllers/api/salmon_controller_spec.rb
index d5be69c014e..8b356640f9f 100644
--- a/spec/controllers/api/salmon_controller_spec.rb
+++ b/spec/controllers/api/salmon_controller_spec.rb
@@ -13,7 +13,7 @@ RSpec.describe Api::SalmonController, type: :controller do
   describe 'POST #update' do
     before do
       request.env['RAW_POST_DATA'] = File.read(File.join(Rails.root, 'spec', 'fixtures', 'salmon', 'mention.xml'))
-      post :update, id: account.id
+      post :update, params: { id: account.id }
     end
 
     it 'returns http success' do
diff --git a/spec/controllers/api/statuses_controller_spec.rb b/spec/controllers/api/statuses_controller_spec.rb
index 75a8b999a3a..c02c1d889bd 100644
--- a/spec/controllers/api/statuses_controller_spec.rb
+++ b/spec/controllers/api/statuses_controller_spec.rb
@@ -12,7 +12,7 @@ RSpec.describe Api::StatusesController, type: :controller do
     let(:status) { Fabricate(:status, account: user.account) }
 
     it 'returns http success' do
-      get :show, id: status.id
+      get :show, params: { id: status.id }
       expect(response).to have_http_status(:success)
     end
   end
diff --git a/spec/controllers/api/subscriptions_controller_spec.rb b/spec/controllers/api/subscriptions_controller_spec.rb
index de4c8f56def..e13ec4939e3 100644
--- a/spec/controllers/api/subscriptions_controller_spec.rb
+++ b/spec/controllers/api/subscriptions_controller_spec.rb
@@ -5,7 +5,7 @@ RSpec.describe Api::SubscriptionsController, type: :controller do
 
   describe 'GET #show' do
     before do
-      get :show, :id => account.id, 'hub.topic' => 'topic_url', 'hub.verify_token' => 123, 'hub.challenge' => '456'
+      get :show, params: { :id => account.id, 'hub.topic' => 'topic_url', 'hub.verify_token' => 123, 'hub.challenge' => '456' }
     end
 
     it 'returns http success' do
@@ -26,7 +26,7 @@ RSpec.describe Api::SubscriptionsController, type: :controller do
       request.env['HTTP_X_HUB_SIGNATURE'] = "sha1=#{OpenSSL::HMAC.hexdigest('sha1', 'abc', feed)}"
       request.env['RAW_POST_DATA'] = feed
 
-      post :update, id: account.id
+      post :update, params: { id: account.id }
     end
 
     it 'returns http created' do
diff --git a/spec/controllers/auth/sessions_controller_spec.rb b/spec/controllers/auth/sessions_controller_spec.rb
index 004a44fba6c..48c9b34a1a9 100644
--- a/spec/controllers/auth/sessions_controller_spec.rb
+++ b/spec/controllers/auth/sessions_controller_spec.rb
@@ -17,7 +17,7 @@ RSpec.describe Auth::SessionsController, type: :controller do
 
     before do
       request.env["devise.mapping"] = Devise.mappings[:user]
-      post :create, user: { email: user.email, password: user.password }
+      post :create, params: { user: { email: user.email, password: user.password } }
     end
 
     it 'redirects to home page' do
diff --git a/spec/controllers/settings_controller_spec.rb b/spec/controllers/settings_controller_spec.rb
index b417cbdafe7..0b41a2111c8 100644
--- a/spec/controllers/settings_controller_spec.rb
+++ b/spec/controllers/settings_controller_spec.rb
@@ -3,7 +3,7 @@ require 'rails_helper'
 RSpec.describe SettingsController, type: :controller do
 
   before do
-    sign_in :user, Fabricate(:user)
+    sign_in Fabricate(:user), scope: :user
   end
 
   describe "GET #show" do
diff --git a/spec/controllers/statuses_controller_spec.rb b/spec/controllers/statuses_controller_spec.rb
index 05566a30e0d..812d75127b4 100644
--- a/spec/controllers/statuses_controller_spec.rb
+++ b/spec/controllers/statuses_controller_spec.rb
@@ -4,13 +4,13 @@ RSpec.describe StatusesController, type: :controller do
   let(:user) { Fabricate(:user) }
 
   before do
-    sign_in :user, user
+    sign_in user, scope: :user
   end
 
   describe 'POST #create' do
     before do
       stub_request(:post, "https://pubsubhubbub.superfeedr.com/").to_return(:status => 200, :body => "", :headers => {})
-      post :create, status: { text: 'Hello world' }
+      post :create, params: { status: { text: 'Hello world' } }
     end
 
     it 'redirects back to homepage' do
diff --git a/spec/controllers/stream_entries_controller_spec.rb b/spec/controllers/stream_entries_controller_spec.rb
index 1b5f1fd7a7b..56b636ab402 100644
--- a/spec/controllers/stream_entries_controller_spec.rb
+++ b/spec/controllers/stream_entries_controller_spec.rb
@@ -6,12 +6,12 @@ RSpec.describe StreamEntriesController, type: :controller do
 
   describe 'GET #show' do
     it 'returns http success with HTML' do
-      get :show, account_username: alice.username, id: status.stream_entry.id
+      get :show, params: { account_username: alice.username, id: status.stream_entry.id }
       expect(response).to have_http_status(:success)
     end
 
     it 'returns http success with Atom' do
-      get :show, account_username: alice.username, id: status.stream_entry.id, format: 'atom'
+      get :show, params: { account_username: alice.username, id: status.stream_entry.id }, format: 'atom'
       expect(response).to have_http_status(:success)
     end
   end
diff --git a/spec/controllers/xrd_controller_spec.rb b/spec/controllers/xrd_controller_spec.rb
index c6bc5eab52f..9152a714b5e 100644
--- a/spec/controllers/xrd_controller_spec.rb
+++ b/spec/controllers/xrd_controller_spec.rb
@@ -12,12 +12,12 @@ RSpec.describe XrdController, type: :controller do
     let(:alice) { Fabricate(:account, username: 'alice') }
 
     it 'returns http success when account can be found' do
-      get :webfinger, resource: "acct:#{alice.username}@anything.com"
+      get :webfinger, params: { resource: "acct:#{alice.username}@anything.com" }
       expect(response).to have_http_status(:success)
     end
 
     it 'returns http not found when account cannot be found' do
-      get :webfinger, resource: 'acct:not@existing.com'
+      get :webfinger, params: { resource: 'acct:not@existing.com' }
       expect(response).to have_http_status(:not_found)
     end
   end
diff --git a/spec/fabricators/account_fabricator.rb b/spec/fabricators/account_fabricator.rb
index 5f87ea522a8..3a7c00bf552 100644
--- a/spec/fabricators/account_fabricator.rb
+++ b/spec/fabricators/account_fabricator.rb
@@ -1,3 +1,3 @@
 Fabricator(:account) do
-
+  username "alice"
 end
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index 71e99e16e5f..e9c732f6f7f 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -17,7 +17,7 @@ RSpec.configure do |config|
   config.infer_spec_type_from_file_location!
   config.filter_rails_from_backtrace!
 
-  config.include Devise::TestHelpers, type: :controller
+  config.include Devise::Test::ControllerHelpers, type: :controller
   config.include Devise::TestHelpers, type: :view
 end