### New features

* [#267](https://github.com/rubocop/rubocop-performance/pull/267): Add new `Performance/ConcurrentMonotonicTime` cop. ([@koic][])

### Bug fixes

* [#261](https://github.com/rubocop/rubocop-performance/issues/261): Fix a false negative for `Performance/RedundantBlockCall` when using `block.call` in a class method'. ([@koic][])
* [#264](https://github.com/rubocop/rubocop-performance/pull/264): Fix error in Performance/Sum when method has no brackets. ([@mvz][])

### Changes

* [#263](https://github.com/rubocop/rubocop-performance/pull/263): Unmark `AutoCorrect: false` from `Performance/StringInclude`. ([@koic][])

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