### New features

* [#624](https://github.com/rubocop/rubocop-rails/issues/624): Add new `Rails/I18nLocaleTexts` cop. ([@fatkodima][])
* [#326](https://github.com/rubocop/rubocop-rails/pull/326): Add new `Rails/I18nLazyLookup` cop. ([@fatkodima][])
* [#644](https://github.com/rubocop/rubocop-rails/pull/644): Add new `Rails/MigrationClassName` cop. ([@johnny-miyake][])
* [#599](https://github.com/rubocop/rubocop-rails/issues/599): Add new `Rails/DuplicateAssociation` cop. ([@natematykiewicz][])
* [#427](https://github.com/rubocop/rubocop-rails/issues/427): Add `Rails/DuplicateScope` cop. ([@natematykiewicz][])
* [#642](https://github.com/rubocop/rubocop-rails/issues/642): New cop `Rails/TransactionExitStatement` to disallow `return`, `break` and `throw` in transactions. ([@teckwan][])
* [#491](https://github.com/rubocop/rubocop-rails/pull/491): New `Rails/DeprecatedActiveModelErrorsMethods` cop. ([@lulalala][])
* [#638](https://github.com/rubocop/rubocop-rails/pull/638): Add new `Rails/ActionControllerTestCase` cop. ([@gmcgibbon][])
* [#574](https://github.com/rubocop/rubocop-rails/pull/574): Add new `Rails/TableNameAssignment` cop. ([@MaximeDucheneS][])

### Bug fixes

* [#636](https://github.com/rubocop/rubocop-rails/issues/636): Fix a false positive for `Rails/ContentTag` when using `tag` method in config/puma.rb. ([@koic][])
* [#635](https://github.com/rubocop/rubocop-rails/pull/635): Handle `t.remove` with multiple columns in `Rails/BulkChangeTable`. ([@eugeneius][])

### Changes

* [#646](https://github.com/rubocop/rubocop-rails/issues/646): Exclude db/schema.rb and db/[CONFIGURATION_NAMESPACE]_schema.rb by default. ([@koic][])
* [#650](https://github.com/rubocop/rubocop-rails/issues/650): Make `Rails/CompactBlank` aware of `delete_if(&:blank)`. ([@koic][])
* [#631](https://github.com/rubocop/rubocop-rails/pull/631): Update `Rails/Pluck` to be aware of numblocks. ([@sammiya][])

[@fatkodima]: https://github.com/fatkodima
[@johnny-miyake]: https://github.com/johnny-miyake
[@natematykiewicz]: https://github.com/natematykiewicz
[@teckwan]: https://github.com/teckwan
[@lulalala]: https://github.com/lulalala
[@gmcgibbon]: https://github.com/gmcgibbon
[@MaximeDucheneS]: https://github.com/MaximeDucheneS
[@koic]: https://github.com/koic
[@eugeneius]: https://github.com/eugeneius
[@sammiya]: https://github.com/sammiya
