<commit_before># Change Log

All notable changes to the Pony compiler and standard library will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/) and [Keep a CHANGELOG](http://keepachangelog.com/).

## [unreleased] - unreleased

### Fixed

- Fix crash with exhaustive match and generics ([PR #4057](https://github.com/ponylang/ponyc/pull/4057))
- Fix parameter names not being checked ([PR #4061](https://github.com/ponylang/ponyc/pull/4061))
- Fix compiler crash in HeapToStack optimization pass ([PR #4067](https://github.com/ponylang/ponyc/pull/4067))

### Added


### Changed


## [0.49.1] - 2022-03-13

### Fixed

- Ban unstable variables ([PR #4018](https://github.com/ponylang/ponyc/pull/4018))

## [0.49.0] - 2022-02-26

### Fixed

- Add workaround for compiler assertion failure in Promise.flatten_next ([PR #3991](https://github.com/ponylang/ponyc/pull/3991))<commit_msg>Update CHANGELOG for PR #4060<commit_after># Change Log

All notable changes to the Pony compiler and standard library will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/) and [Keep a CHANGELOG](http://keepachangelog.com/).

## [unreleased] - unreleased

### Fixed

- Fix crash with exhaustive match and generics ([PR #4057](https://github.com/ponylang/ponyc/pull/4057))
- Fix parameter names not being checked ([PR #4061](https://github.com/ponylang/ponyc/pull/4061))
- Fix compiler crash in HeapToStack optimization pass ([PR #4067](https://github.com/ponylang/ponyc/pull/4067))

### Added

- Allow to override the return type of FFI functions ([PR #4060](https://github.com/ponylang/ponyc/pull/4060))

### Changed


## [0.49.1] - 2022-03-13

### Fixed

- Ban unstable variables ([PR #4018](https://github.com/ponylang/ponyc/pull/4018))

## [0.49.0] - 2022-02-26

### Fixed

- Add workaround for compiler assertion failure in Promise.flatten_next ([PR #3991](https://github.com/ponylang/ponyc/pull/3991))
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