# Transducers Changelog

## 0.4.0 - 2023-04-16
### Added
- Adds support for using SRFI 146 mappings / hashmaps with transducers.

## 0.3.1 - 2023-04-02
### Changed
- Replaced `#!optional` declarations in defines with use of case-lambda, since R7RS does not have an
  `#!optional` keyword / extension syntax.

## 0.3.0 - 2023-04-02
### Changed
- Egg is now provided as an R7RS module.

## 0.2.0 - 2023-01-13
### Added
- `collect-sum` and `collect-product` collectors

### Changed
- `any` / `all` / `count` / `first` / `last` have been renamed to be
  `collect-{any,all,count,first,last}`. All collector procedures start with the word `collect-` now.
- All collectors accept an optional sentinel argument now.
- All collectors should now be wrapped in parenthesis. For example:

```scheme
(import transducers)

;; Previously
(transduce list-fold values collect-list (list 1 2 3))

;; Now
(transduce list-fold values (collect-list) (list 1 2 3))
```

## 0.1.0 - 2023-01-04
### Added
- First version of transducers!
- Adds all base / lists / vectors / ports libraries
- Documentation
- Tests