Rails 7 adds range serializer for ActiveJob

ActiveJob in Rails 7 allows a range to be passed as an argument to perform method.

Ruby 3.1 Enumerable#tally now accepts an optional hash to count occurrences

Ruby 3.1 extends the functionality of the Enumerable#tally method introduced in Ruby 2.7. We can now pass another hash whose counts would be added to the resulting tally hash.

Ruby 3.1 adds Array#intersect? method

Ruby Array#intersect? method will return true or false based on common elements present in the two arrays.

React 17 internally uses the browser's focusin and focusout events for onFocus and onBlur events

React's onFocus and onBlur events have switched to using the native focusin and focusout events under the hood.

Ruby 3.1 evaluates multiple assignments from left to right

Ruby changes the evaluation order for multiple assignments from left to right making it consistent with single assignment evaluation order.

Rails 7 ActiveSupport::Cache::MemCacheStore now accepts an explicit nil for addresses argument

Those migrating from :dalli_store to :mem_cache_store can now pass an explicit nil for its addresses argument.

Rails 7 transforms a Ruby hash into HTML attributes for ERB interpolation

Rails 7 adds `tag.attributes`, which transforms a Hash into HTML Attributes, ready to be interpolated into ERB.

Rails 7 adds disable_joins: true option to has_many :through association

In multiple database applications, associations can't join across databases. When set, Rails makes 2 or more queries rather than using join for associations.

Rails 7 allows constructors on has_one :through associations

Rails 7 allows build_association and create_association on has_one :through associations.

React 17 adds support for KeyboardEvent.code property to SyntheticEvent

Starting with React 17, KeyboardEvent.code property is available on React keyboard event.