### New features

* [#13030](https://github.com/rubocop/rubocop/pull/13030): Add new `Gemspec/AddRuntimeDependency` cop. ([@koic][])

### Bug fixes

* [#12954](https://github.com/rubocop/rubocop/issues/12954): Fix a false negative for `Style/ArgumentsForwarding` when arguments forwarding in `yield`. ([@koic][])
* [#13033](https://github.com/rubocop/rubocop/issues/13033): Fix a false positive for `Layout/SpaceAroundOperators` when using multiple spaces between an operator and a tailing comment. ([@koic][])
* [#12885](https://github.com/rubocop/rubocop/issues/12885): Fix a false positive for `Lint/ToEnumArguments` when enumerator is created for another method. ([@koic][])
* [#13018](https://github.com/rubocop/rubocop/issues/13018): Fix a false positive for `Style/MethodCallWithArgsParentheses` when `EnforcedStyle: omit_parentheses` is set and parenthesized method call is used before constant resolution. ([@koic][])
* [#12986](https://github.com/rubocop/rubocop/issues/12986): Fix a false positive for `Style/RedundantBegin` when endless method definition with `rescue`. ([@koic][])
* [#12985](https://github.com/rubocop/rubocop/issues/12985): Fix an error for `Style/RedundantRegexpCharacterClass` when using regexp_parser gem 2.3.1 or older. ([@koic][])
* [#13010](https://github.com/rubocop/rubocop/issues/13010): Fix an error for `Style/SuperArguments` when the hash argument is or-assigned. ([@koic][])
* [#13023](https://github.com/rubocop/rubocop/issues/13023): Fix an error for `Style/SymbolProc` when using lambda `->` with one argument and multiline `do`...`end` block. ([@koic][])
* [#12989](https://github.com/rubocop/rubocop/issues/12989): Fix an error for the `inherit_gem` config when the Gemfile contains an uninstalled git gem. ([@earlopain][])
* [#12975](https://github.com/rubocop/rubocop/issues/12975): Fix an error for the `inherit_gem` config when running RuboCop without bundler and no Gemfile exists. ([@earlopain][])
* [#12997](https://github.com/rubocop/rubocop/pull/12997): Fix an error for `Lint/UnmodifiedReduceAccumulator` when the block is empty. ([@earlopain][])
* [#12979](https://github.com/rubocop/rubocop/issues/12979): Fix false negatives for `Lint/Void` when void expression with guard clause is not on last line. ([@koic][])
* [#12716](https://github.com/rubocop/rubocop/issues/12716): Fix false negatives for `Lint/Void` when using parenthesized void operators. ([@koic][])
* [#12471](https://github.com/rubocop/rubocop/issues/12471): Fix false negatives for `Style/ZeroLengthPredicate` when using safe navigation operator. ([@koic][])
* [#12960](https://github.com/rubocop/rubocop/issues/12960): Fix false positives for `Lint/NestedMethodDefinition` when definition of method on variable. ([@koic][])
* [#13012](https://github.com/rubocop/rubocop/issues/13012): Fix false positives for `Style/HashExcept` when using `reject` and calling `include?` method with bang. ([@koic][])
* [#12983](https://github.com/rubocop/rubocop/issues/12983): Fix false positives for `Style/SendWithLiteralMethodName` using `send` with writer method name. ([@koic][])
* [#12957](https://github.com/rubocop/rubocop/issues/12957): Fix false positives for `Style/SuperArguments` when calling super in a block. ([@koic][])

### Changes

* [#12970](https://github.com/rubocop/rubocop/issues/12970): Add `CountModifierForms` option to `Metrics/BlockNesting` and set it to `false` by default. ([@koic][])
* [#13032](https://github.com/rubocop/rubocop/pull/13032): Display warning messages for deprecated APIs. ([@koic][])
* [#13031](https://github.com/rubocop/rubocop/pull/13031): Enable YJIT by default in server mode. ([@koic][])
* [#12557](https://github.com/rubocop/rubocop/issues/12557): Make server mode aware of auto-restart for `bundle update`. ([@koic][])
* [#12616](https://github.com/rubocop/rubocop/issues/12616): Make `Style/MapCompactWithConditionalBlock` aware of `filter_map`. ([@koic][])
* [#13035](https://github.com/rubocop/rubocop/issues/13035): Support autocorrect for `Lint/ImplicitStringConcatenation`. ([@koic][])

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