### New features

* [#51](https://github.com/rubocop/rubocop-rails/issues/51): Add allowed receiver class names option for `Rails/DynamicFindBy`. ([@tejasbubane][])
* [#211](https://github.com/rubocop/rubocop-rails/issues/211): Add autocorrect to `Rails/RakeEnvironment` cop. ([@tejasbubane][])
* [#242](https://github.com/rubocop/rubocop-rails/pull/242): Add `Rails/ContentTag` cop. ([@tabuchi0919][])
* [#249](https://github.com/rubocop/rubocop-rails/pull/249): Add new `Rails/Pick` cop. ([@eugeneius][])
* [#257](https://github.com/rubocop/rubocop-rails/pull/257): Add new `Rails/RedundantForeignKey` cop. ([@eugeneius][])

### Bug fixes

* [#12](https://github.com/rubocop/rubocop-rails/issues/12): Fix a false positive for `Rails/SkipsModelValidations` when passing a boolean literal to `touch`. ([@eugeneius][])
* [#238](https://github.com/rubocop/rubocop-rails/issues/238): Fix auto correction for `Rails/IndexBy` when the `.to_h` invocation is separated in multiple lines. ([@diogoosorio][])
* [#248](https://github.com/rubocop/rubocop-rails/pull/248): Fix a false positive for `Rails/SaveBang` when `update` is called on `ENV`. ([@eugeneius][])
* [#251](https://github.com/rubocop/rubocop-rails/pull/251): Fix a false positive for `Rails/FilePath` when the result of `Rails.root.join` is interpolated at the end of a string. ([@eugeneius][])
* [#91](https://github.com/rubocop/rubocop-rails/issues/91): Fix `Rails/UniqBeforePluck` to not recommend using `uniq` in `ActiveRecord::Relation`s anymore since it was deprecated in Rails 5.0. ([@santib][], [@ghiculescu][])

### Changes

* [#233](https://github.com/rubocop/rubocop-rails/pull/233): **(Compatibility)** Drop support for Ruby 2.3. ([@koic][])
* [#236](https://github.com/rubocop/rubocop-rails/pull/236): **(Compatibility)** Drop support for Rails 4.1 or lower. ([@koic][])
* [#210](https://github.com/rubocop/rubocop-rails/issues/210): Accept `redirecto_to(...) and return` and similar cases. ([@koic][])
* [#258](https://github.com/rubocop/rubocop-rails/pull/258): Drop support for RuboCop 0.81 or lower. ([@koic][])

[@tejasbubane]: https://github.com/tejasbubane
[@tabuchi0919]: https://github.com/tabuchi0919
[@eugeneius]: https://github.com/eugeneius
[@diogoosorio]: https://github.com/diogoosorio
[@santib]: https://github.com/santib
[@ghiculescu]: https://github.com/ghiculescu
[@koic]: https://github.com/koic
