- Add attributes `allowfullscreen`, `default`, `inert`, `sortable`,
`truespeed`, `typemustmatch`.
- Fix attribute `seamless` (previously misspelled `seemless`).
- Use `assert_dom_equal` instead of `assert_equal` in test.

Remove link_to_function / button_to_function from ActionView::Helpers::JavascriptHelper were deprecated.

Remove :confirm and :disable_with options for ActionView::Helpers::UrlHelper#link_to and #button_to were deprecated.

"There're" => There are for better readability

as the last element of the array

clarify issue #10115. Also made the field_helpers an explicit list of
methods.

If a file field tag is passed the multiple option, it is turned into an
array field (appending "[]"), but if the file field is passed an
explicit name as an option, leave the name alone (do not append "[]").

Fixes #9830

There's no need to use Hash#merge with a new hash just for setting the
href option to pass it through. Since we're always dealing with a new
html_options hash, we're free to just set the value instead.

Add changelog entry

Delete changelog

A previous commit swapped out a call to select for a call to grep in
time_zone_options_for_select. This behavior actually causes the
regexp priority option to stop working.

ActiveSupport::TimeZone overrides the =~ operator which is what the
select block was using previously. Enumerable#grep
checks pattern === element and in this case that would be /US/ ===
ActiveSupport::TimeZone which does not work because
ActiveSupport::TimeZone does not supply an implicit converting to_str
method, only an explicit to_s method.

It would be impossible to provide a to_str method that behaves
identically to the =~ method provided on ActiveSupport::TimeZone
so the only option is to revert back to using select with =~.

there are just the same description about accepts_nested_attributes [ci skip]

If an explicit name has been given and it already ends with "[]"

Before:

    select(:category, [], {}, multiple: true, name: "post[category][]")
    # => <select name="post[category][][]" ...>

After:

    select(:category, [], {}, multiple: true, name: "post[category][]")
    # => <select name="post[category][]" ...>

if there's content for the right column, then we need the two-column class, if not the one-column

The debug helper should inspect the object when it can't be converted to YAML, this behavior was changed in 8f8d8eb1.

  Before `time_tag Date.today` will return `<time
  datetime="2013-02-14T00:00:00+00:00">February 14, 2013</time>`.
  This commit fixes time_tag helper to use RFC-3339 full-date format
  (Y-m-d) in datetime attribute.