rails 6.1.0.rc2

on Ruby Gems

Active Support

• Ensure MemoryStore disables compression by default. Reverts behavior of
  MemoryStore to its prior rails 5.1 behavior.

  Max Gurewitz

Active Model

• No changes.

Active Record

• Fix odd behavior of inverse_of with multiple belongs_to to same class.

  Fixes #35204.

  Tomoyuki Kai

• Build predicate conditions with objects that delegate #id and primary key:

  class AdminAuthor
    delegate_missing_to :@author
  
    def initialize(author)
      @author = author
    end
  end
  
  Post.where(author: AdminAuthor.new(author))

  Sean Doyle

Action View

• Change form_with to generate non-remote forms by default.

  form_with would generate a remote form by default. This would confuse
  users because they were forced to handle remote requests.

  All new 6.1 applications will generate non-remote forms by default.
  When upgrading a 6.0 application you can enable remote forms by default by
  setting config.action_view.form_with_generates_remote_forms to true.

  Petrik de Heus

Action Pack

• Support for the HTTP header Feature-Policy has been revised to reflect
  its rename to Permissions-Policy.

  Rails.application.config.permissions_policy do |p|
    p.camera     :none
    p.gyroscope  :none
    p.microphone :none
    p.usb        :none
    p.fullscreen :self
    p.payment    :self, "https://secure-example.com"
  end

  Julien Grillot

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

• Implement strict_loading on ActiveStorage associations.

  David Angulo

Action Mailbox

• No changes.

Action Text

• No changes.

Railties

• No changes.