• ::ActiveSupport::JSON now accepts options

  It is now possible to pass options to ::ActiveSupport::JSON:

  ActiveSupport::JSON.decode('{"key": "value"}', symbolize_names: true) # => { key: "value" }

  matthaigh27

• ::ActiveSupport::Testing::NotificationAssertions's assert_notification now matches against payload subsets by default.

  Previously the following assertion would fail due to excess key vals in the notification payload. Now with payload subset matching, it will pass.

  assert_notification("post.submitted", title: "Cool Post") do
    ActiveSupport::Notifications.instrument("post.submitted", title: "Cool Post", body: "Cool Body")
  end

  Additionally, you can now persist a matched notification for more customized assertions.

  notification = assert_notification("post.submitted", title: "Cool Post") do
    ActiveSupport::Notifications.instrument("post.submitted", title: "Cool Post", body: Body.new("Cool Body"))
  end
  
  assert_instance_of(Body, notification.payload[:body])

  Nicholas La Roux

• Deprecate String#mb_chars and ::ActiveSupport::Multibyte::Chars.

  These APIs are a relic of the Ruby 1.8 days when Ruby strings weren't encoding aware. There is no legitimate reasons to need these APIs today.

  Jean Boussier

• Deprecate ::ActiveSupport::Configurable

  Sean Doyle

• nil.to_query("key") now returns key.

  Previously it would return key=, preventing round tripping with Rack::Utils.parse_nested_query.

  Erol Fornoles

• Avoid wrapping redis in a ConnectionPool when using ::ActiveSupport::Cache::RedisCacheStore if the :redis option is already a ConnectionPool.

  Joshua Young

• Alter ERB::Util.tokenize to return :PLAIN token with full input string when string doesn't contain ERB tags.

  Martin Emde

• Fix a bug in ERB::Util.tokenize that causes incorrect tokenization when ERB tags are preceeded by multibyte characters.

  Martin Emde

• Add ::ActiveSupport::Testing::NotificationAssertions module to help with testing ::ActiveSupport::Notifications.

  Nicholas La Roux, Yishu See, Sean Doyle

• ActiveSupport::CurrentAttributes#attributes now will return a new hash object on each call.

  Previously, the same hash object was returned each time that method was called.

  fatkodima

• ActiveSupport::JSON.encode supports CIDR notation.

  Previously:

  ActiveSupport::JSON.encode(IPAddr.new("172.16.0.0/24")) # => "\"172.16.0.0\""

  After this change:

  ActiveSupport::JSON.encode(IPAddr.new("172.16.0.0/24")) # => "\"172.16.0.0/24\""

  Taketo Takashima

• Make ::ActiveSupport::FileUpdateChecker faster when checking many file-extensions.

  Jonathan del Strother

Please check [8-0-stable]) for previous changes.