### New features

* [#13077](https://github.com/rubocop/rubocop/pull/13077): Add new global `StringLiteralsFrozenByDefault` option for correct analysis with `RUBYOPT=--enable=frozen-string-literal`. ([@earlopain][])
* [#13080](https://github.com/rubocop/rubocop/pull/13080): Add new `DocumentationExtension` global option to serve documentation with extensions different than `.html`. ([@earlopain][])
* [#13074](https://github.com/rubocop/rubocop/issues/13074): Add new `Lint/UselessNumericOperation` cop to check for inconsequential numeric operations. ([@zopolis4][])
* [#13061](https://github.com/rubocop/rubocop/issues/13061): Add new `Style/RedundantInterpolationUnfreeze` cop to check for `dup` and `@+` on interpolated strings in Ruby >= 3.0. ([@earlopain][])

### Bug fixes

* [#13093](https://github.com/rubocop/rubocop/issues/13093): Fix an error for `Lint/ImplicitStringConcatenation` when implicitly concatenating a string literal with a line break and string interpolation. ([@koic][])
* [#13098](https://github.com/rubocop/rubocop/issues/13098): Fix an error for `Style/IdenticalConditionalBranches` when handling empty case branches. ([@koic][])
* [#13113](https://github.com/rubocop/rubocop/pull/13113): Fix an error for `Style/IfWithSemicolon` when a nested `if` with a semicolon is used. ([@koic][])
* [#13097](https://github.com/rubocop/rubocop/issues/13097): Fix an error for `Style/InPatternThen` when using alternative pattern matching deeply. ([@koic][])
* [#13159](https://github.com/rubocop/rubocop/pull/13159): Fix an error for `Style/OneLineConditional` when using if/then/else/end with multiple expressions in the `then` body. ([@koic][])
* [#13092](https://github.com/rubocop/rubocop/pull/13092): Fix an incorrect autocorrect for `Layout/EmptyLineBetweenDefs` when two method definitions are on the same line separated by a semicolon. ([@koic][])
* [#13116](https://github.com/rubocop/rubocop/pull/13116): Fix an incorrect autocorrect for `Style/IfWithSemicolon` when a single-line `if/;/end` has an argument in the then body expression. ([@koic][])
* [#13161](https://github.com/rubocop/rubocop/pull/13161): Fix incorrect autocorrect for `Style/IfWithSemicolon` when using multiple expressions in the `else` body. ([@koic][])
* [#13132](https://github.com/rubocop/rubocop/pull/13132): Fix incorrect autocorrect for `Style/TrailingBodyOnMethodDefinition` when an expression precedes a method definition on the same line with a semicolon. ([@koic][])
* [#13164](https://github.com/rubocop/rubocop/pull/13164): Fix incorrect autocorrect behavior for `Layout/BlockAlignment` when `EnforcedStyleAlignWith: either (default)`. ([@koic][])
* [#13087](https://github.com/rubocop/rubocop/pull/13087): Fix an incorrect autocorrect for `Style/MultipleComparison` when expression with more comparisons precedes an expression with less comparisons. ([@fatkodima][])
* [#13172](https://github.com/rubocop/rubocop/pull/13172): Fix an error for `Layout/EmptyLinesAroundExceptionHandlingKeywords` when `ensure` or `else` and `end` are on the same line. ([@koic][])
* [#13107](https://github.com/rubocop/rubocop/issues/13107): Fix an error for `Lint/ImplicitStringConcatenation` when there are multiple adjacent string interpolation literals on the same line. ([@koic][])
* [#13111](https://github.com/rubocop/rubocop/pull/13111): Fix an error for `Style/GuardClause` when if clause is empty and correction would not fit on single line because of `Layout/LineLength`. ([@earlopain][])
* [#13137](https://github.com/rubocop/rubocop/pull/13137): Fix an error for `Style/ParallelAssignment` when using `__FILE__`. ([@earlopain][])
* [#13143](https://github.com/rubocop/rubocop/pull/13143): Fix an error during `TargetRubyVersion` detection if the gemspec is not valid syntax. ([@earlopain][])
* [#13131](https://github.com/rubocop/rubocop/pull/13131): Fix false negatives for `Lint/Void` when using `ensure`, `defs` and `numblock`. ([@vlad-pisanov][])
* [#13174](https://github.com/rubocop/rubocop/pull/13174): Fix false negatives for `Style/MapIntoArray` when initializing the destination using `Array[]`, `Array([])`, or `Array.new([])`. ([@vlad-pisanov][])
* [#13173](https://github.com/rubocop/rubocop/pull/13173): Fix false negatives for `Style/EmptyLiteral` when using `Array[]`, `Hash[]`, `Array.new([])` and `Hash.new([])`. ([@vlad-pisanov][])
* [#13126](https://github.com/rubocop/rubocop/issues/13126): Fix a false positive for `Style/Alias` when using multiple `alias` in `def`. ([@koic][])
* [#13085](https://github.com/rubocop/rubocop/issues/13085): Fix a false positive for `Style/EmptyElse` when a comment-only `else` is used after `elsif` and `AllowComments: true` is set. ([@koic][])
* [#13118](https://github.com/rubocop/rubocop/issues/13118): Fix a false positive for `Style/MapIntoArray` when splatting. ([@earlopain][])
* [#13105](https://github.com/rubocop/rubocop/issues/13105): Fix false positives for `Style/ArgumentsForwarding` when forwarding kwargs/block arg with non-matching additional args. ([@koic][])
* [#13139](https://github.com/rubocop/rubocop/issues/13139): Fix false positives for `Style/RedundantCondition` when using modifier `if` or `unless`. ([@koic][])
* [#13134](https://github.com/rubocop/rubocop/pull/13134): Fix false negative for `Lint/Void` when using frozen literals. ([@vlad-pisanov][])
* [#13148](https://github.com/rubocop/rubocop/pull/13148): Fix incorrect autocorrect for `Lint/EmptyConditionalBody` when missing `elsif` body with `end` on the same line. ([@koic][])
* [#13109](https://github.com/rubocop/rubocop/pull/13109): Fix an error for the `Lockfile` parser when it contains incompatible `BUNDLED WITH` versions. ([@earlopain][])
* [#13112](https://github.com/rubocop/rubocop/pull/13112): Fix detection of `TargetRubyVersion` through the gemfile if the gemfile ruby version is below 2.7. ([@earlopain][])
* [#13155](https://github.com/rubocop/rubocop/pull/13155): Fixes an error when the server cache directory has too long path, causing rubocop to fail even with caching disabled. ([@protocol7][])

### Changes

* [#13150](https://github.com/rubocop/rubocop/issues/13150): Allow `get_!`, `set_!`, `get_?`, `set_?`, `get_=`, and `set_=` in `Naming/AccessorMethodName`. ([@koic][])
* [#13103](https://github.com/rubocop/rubocop/issues/13103): Make `Lint/UselessAssignment` autocorrection safe. ([@koic][])
* [#13099](https://github.com/rubocop/rubocop/issues/13099): Make `Style/RedundantRegexpArgument` respect the `EnforcedStyle` of `Style/StringLiterals`. ([@koic][])
* [#13165](https://github.com/rubocop/rubocop/pull/13165): Remove dependency on the `rexml` gem. ([@bquorning][])
* [#13090](https://github.com/rubocop/rubocop/pull/13090): Require RuboCop AST 1.32.0+ to use `RuboCop::AST::RationalNode`. ([@koic][])

[@earlopain]: https://github.com/earlopain
[@zopolis4]: https://github.com/zopolis4
[@koic]: https://github.com/koic
[@fatkodima]: https://github.com/fatkodima
[@vlad-pisanov]: https://github.com/vlad-pisanov
[@protocol7]: https://github.com/protocol7
[@bquorning]: https://github.com/bquorning
