<commit_before># Change Log
All notable changes to this project will be documented in this file.

---
## Master

* Adds `scan(into:accumulator:)`.
* Adds `queuePriority` parameter (defaults to `.normal`) to `OperationQueueScheduler`.
* Performance enhancement reduces Bag dispatch inline code size by 12%.
* Adds `customCaptureSubscriptionCallstack` hook to allow custom subscription callstacks to be generated.

#### Anomalies

## [4.X.X](https://github.com/ReactiveX/RxSwift/releases/tag/4.X.X)

* Adds new `insert` extension to collect and add multiple disposables to `DisposeBag`.
* Removes string interpolation warning

## [4.2.0](https://github.com/ReactiveX/RxSwift/releases/tag/4.2.0)

* Adds Smart Key Path subscripting to create a binder for property of object.
* Adds `UICollectionView` extensions:
    * `prefetchItems`
    * cancelPrefetchingForItems
* Adds `UITableView` extensions:
    * `prefetchRows`
    * `cancelPrefetchingForRows`
* Fixes various spelling mistakes and missing parameters.
* Adds `UISegmentedControlExtensions`:
    * `titleForSegment(at:)`
    * `imageForSegment(at:)`
* Adds `Maybe.ifEmpty(default:)` operator.<commit_msg>Add CHANGELOG entry<commit_after># Change Log
All notable changes to this project will be documented in this file.

---
## Master

* Adds `scan(into:accumulator:)`.
* Adds `queuePriority` parameter (defaults to `.normal`) to `OperationQueueScheduler`.
* Performance enhancement reduces Bag dispatch inline code size by 12%.
* Adds `customCaptureSubscriptionCallstack` hook to allow custom subscription callstacks to be generated.
* Remove usage of `Variable` from Playground, Example projects and Tests.

#### Anomalies

## [4.X.X](https://github.com/ReactiveX/RxSwift/releases/tag/4.X.X)

* Adds new `insert` extension to collect and add multiple disposables to `DisposeBag`.
* Removes string interpolation warning

## [4.2.0](https://github.com/ReactiveX/RxSwift/releases/tag/4.2.0)

* Adds Smart Key Path subscripting to create a binder for property of object.
* Adds `UICollectionView` extensions:
    * `prefetchItems`
    * cancelPrefetchingForItems
* Adds `UITableView` extensions:
    * `prefetchRows`
    * `cancelPrefetchingForRows`
* Fixes various spelling mistakes and missing parameters.
* Adds `UISegmentedControlExtensions`:
    * `titleForSegment(at:)`
    * `imageForSegment(at:)`
* Adds `Maybe.ifEmpty(default:)` operator.
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{'dir': 'git-commits-cleaned', 'id': '1940449', 'n_tokens_mistral': 750, 'n_tokens_neox': 711, 'n_words': 217}