### New features

* [#12360](https://github.com/rubocop/rubocop/issues/12360): Add new `Naming/PredicateMethod` cop to check that predicate methods end with `?` and non-predicate methods do not. ([@dvandersluis][])
* [#13121](https://github.com/rubocop/rubocop/issues/13121): Add new `Style/EmptyStringInsideInterpolation` cop. ([@zopolis4][])
* [#14091](https://github.com/rubocop/rubocop/pull/14091): Add new cop `Style/RedundantArrayFlatten`. ([@lovro-bikic][])
* [#14184](https://github.com/rubocop/rubocop/pull/14184): Add new cop `Lint/UselessOr`. ([@lovro-bikic][])
* [#14221](https://github.com/rubocop/rubocop/pull/14221): Enhance `Gemspec` department cops to detect offenses if specification variable is `it` or a numbered parameter. ([@viralpraxis][])
* [#14166](https://github.com/rubocop/rubocop/pull/14166): Add new cop `Lint/UselessDefaultValueArgument`. ([@lovro-bikic][])

### Bug fixes

* [#14228](https://github.com/rubocop/rubocop/issues/14228): Fix a false positive for `Style/RedundantParentheses` when using a one-line `rescue` expression as a method argument. ([@koic][])
* [#14224](https://github.com/rubocop/rubocop/pull/14224): Fix false negatives for `Style/RedundantParentheses` when using one-line pattern matching. ([@koic][])
* [#14205](https://github.com/rubocop/rubocop/issues/14205): False negatives in `Style/SafeNavigation` when a ternary expression is used in a method argument. ([@steiley][])
* [#14226](https://github.com/rubocop/rubocop/pull/14226): Fix `Lint/LiteralAsCondition` autocorrect when branches of a condition have comments. ([@zopolis4][])

### Changes

* [#14066](https://github.com/rubocop/rubocop/pull/14066): Add `EnforcedStyle: allow_single_line` as the default to `Style/ItBlockParameter`. ([@koic][])
* [#13788](https://github.com/rubocop/rubocop/pull/13788): Disable `Lint/ShadowingOuterLocalVariable` by default. ([@nekketsuuu][])
* [#14215](https://github.com/rubocop/rubocop/pull/14215): Recognize inequation (`!=`) in `Lint/IdentityComparison`. ([@lovro-bikic][])

[@dvandersluis]: https://github.com/dvandersluis
[@zopolis4]: https://github.com/zopolis4
[@lovro-bikic]: https://github.com/lovro-bikic
[@viralpraxis]: https://github.com/viralpraxis
[@koic]: https://github.com/koic
[@steiley]: https://github.com/steiley
[@nekketsuuu]: https://github.com/nekketsuuu
