### New features

* [#11749](https://github.com/rubocop/rubocop/pull/11749): Add new `Lint/DuplicateMatchPattern` cop. ([@koic][])
* [#11773](https://github.com/rubocop/rubocop/pull/11773): Make `Layout/ClassStructure` aware of singleton class. ([@koic][])
* [#11779](https://github.com/rubocop/rubocop/pull/11779): Make `Lint/RedundantStringCoercion` aware of print method arguments. ([@koic][])
* [#11776](https://github.com/rubocop/rubocop/pull/11776): Make `Metrics/ClassLength` aware of singleton class. ([@koic][])
* [#11775](https://github.com/rubocop/rubocop/pull/11775): Make `Style/TrailingBodyOnClass` aware of singleton class. ([@koic][])

### Bug fixes

* [#11758](https://github.com/rubocop/rubocop/issues/11758): Fix a false positive for `Style/RedundantLineContinuation` when line continuations for string. ([@koic][])
* [#11754](https://github.com/rubocop/rubocop/pull/11754): Fix a false positive for `Style/RedundantLineContinuation` when using `&&` and `||` with a multiline condition. ([@ydah][])
* [#11765](https://github.com/rubocop/rubocop/issues/11765): Fix an error for `Style/MultilineMethodSignature` when line break after `def` keyword. ([@koic][])
* [#11762](https://github.com/rubocop/rubocop/issues/11762): Fix an incorrect autocorrect for `Style/ClassEqualityComparison`  when comparing a variable or return value for equality. ([@koic][])
* [#11752](https://github.com/rubocop/rubocop/pull/11752): Fix a false positive for `Style/RedundantLineContinuation` when using line concatenation and calling a method without parentheses. ([@koic][])

[@koic]: https://github.com/koic
[@ydah]: https://github.com/ydah
