Active Support

• Add ActiveSupport::HashWithIndifferentAccess#assoc.

  assoc can now be called with either a string or a symbol.

  Stefan Schüßler

• Fix String#safe_constantize throwing a LoadError for incorrectly cased constant references.

  Keenan Brock

• Allow Range#=== and Range#cover? on Range

  Range#cover? can now accept a range argument like Range#include? and
  Range#===. Range#=== works correctly on Ruby 2.6. Range#include? is moved
  into a new file, with these two methods.

  utilum

• If the same block is included multiple times for a Concern, an exception is no longer raised.

  Mark J. Titorenko, Vlad Bokov

Active Model

• Fix date value when casting a multiparameter date hash to not convert
  from Gregorian date to Julian date.

  Before:

  Day.new({"day(1i)"=>"1", "day(2i)"=>"1", "day(3i)"=>"1"})
  => #<Day id: nil, day: "0001-01-03", created_at: nil, updated_at: nil>
  

  After:

  Day.new({"day(1i)"=>"1", "day(2i)"=>"1", "day(3i)"=>"1"})
  => #<Day id: nil, day: "0001-01-01", created_at: nil, updated_at: nil>
  

  Fixes #28521.

  Sayan Chakraborty

• Fix numericality equality validation of BigDecimal and Float
  by casting to BigDecimal on both ends of the validation.

  Gannon McGibbon

Active Record

• Fix different count calculation when using size with manual select with DISTINCT.

  Fixes #35214.

  Juani Villarejo

• Fix prepared statements caching to be enabled even when query caching is enabled.

  Ryuta Kamizono

• Don't allow where with invalid value matches to nil values.

  Fixes #33624.

  Ryuta Kamizono

• Restore an ability that class level update without giving ids.

  Fixes #34743.

  Ryuta Kamizono

• Fix join table column quoting with SQLite.

  Gannon McGibbon

• Ensure that delete_all on collection proxy returns affected count.

  Ryuta Kamizono

• Reset scope after delete on collection association to clear stale offsets of removed records.

  Gannon McGibbon

Action View

• Prevent non-primary mouse keys from triggering Rails UJS click handlers.
  Firefox fires click events even if the click was triggered by non-primary mouse keys such as right- or scroll-wheel-clicks.
  For example, right-clicking a link such as the one described below (with an underlying ajax request registered on click) should not cause that request to occur.

  <%= link_to 'Remote', remote_path, class: 'remote', remote: true, data: { type: :json } %>
  

  Fixes #34541

  Wolfgang Hobmaier

Action Pack

• Allow using combine the Cache Control public and no-cache headers.

  Before this change, even if public was specified for Cache Control header,
  it was excluded when no-cache was included. This fixed to keep public
  header as is.

  Fixes #34780.

  Yuji Yaginuma

• Allow nil params for ActionController::TestCase.

  Ryo Nakamura

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

• No changes.

Railties

• Seed database with inline ActiveJob job adapter.

  Gannon McGibbon

• Fix boolean interaction in scaffold system tests.

  Gannon McGibbon