Ruby on Rails: v6.1.2 Release

Active Support

• ActiveSupport::Cache::MemCacheStore now accepts an explicit nil for its addresses argument.

  config.cache_store = :mem_cache_store, nil
  
  # is now equivalent to
  
  config.cache_store = :mem_cache_store
  
  # and is also equivalent to
  
  config.cache_store = :mem_cache_store, ENV["MEMCACHE_SERVERS"] || "localhost:11211"
  
  # which is the fallback behavior of Dalli
  

  This helps those migrating from :dalli_store, where an explicit nil was permitted.

  Michael Overmeyer

Active Model

• No changes.

Active Record

• Fix timestamp type for sqlite3.

  Eileen M. Uchitelle

• Make destroy async transactional.

  An active record rollback could occur while enqueuing a job. In this case the job would enqueue even though the database deletion rolledback putting things in a funky state.

  Now the jobs are only enqueued until after the db transaction has been committed.

  Cory Gwin

• Fix malformed packet error in MySQL statement for connection configuration.

  robinroestenburg

• Connection specification now passes the "url" key as a configuration for the adapter if the "url" protocol is "jdbc", "http", or "https". Previously only urls with the "jdbc" prefix were passed to the Active Record Adapter, others are assumed to be adapter specification urls.

  Fixes #41137.

  Jonathan Bracy

• Fix granular connection swapping when there are multiple abstract classes.

  Eileen M. Uchitelle

• Fix find_by with custom primary key for belongs_to association.

  Ryuta Kamizono

• Add support for rails console --sandbox for multiple database applications.

  alpaca-tc

• Fix where on polymorphic association with empty array.

  Ryuta Kamizono

• Fix preventing writes for ApplicationRecord.

  Eileen M. Uchitelle

Action View

• No changes.

Action Pack

• Fix error in ActionController::LogSubscriber that would happen when throwing inside a controller action.

  Janko Marohnić

• Fix fixture_file_upload deprecation when file_fixture_path is a relative path.

  Eugene Kenny

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

• No changes.

Action Mailbox

• No changes.

Action Text

• No changes.

Railties

• No changes.