# Changelog

All notable changes to this project will be documented in this file.

This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [3.24.0](https://github.com/marcandre/backports/compare/v3.23.0...v3.24.0) - 2023-03-07

## Added

- `Class#attached_object` (Ruby 3.2)
- `Data` (Ruby 3.2)
- `Enumerator.product` and `Enumerator::Product` (Ruby 3.2)
- `Hash#shift` (with correct behavior when empty) (Ruby 3.2)
- `Integer#ceildiv` (Ruby 3.2)
- `MatchData#byteoffset` (Ruby 3.2)
- `Symbol#start_with?` (Ruby 2.7)

## Fixed

- `Class#descendants` (removed, as it was not actually added in Ruby 3.1, sorry)

## [3.23.0](https://github.com/marcandre/backports/compare/v3.22.1...v3.23.0) - 2021-12-28

### Added

- `Integer.try_convert` (Ruby 3.1)
- `Symbol.end_with?` (Ruby 2.7) [#171]

## [3.22.1](https://github.com/marcandre/backports/compare/v3.21.0...v3.22.1) - 2021-12-27

### Added

Ruby 3.1 backports:

#### Array

- `intersect?`

#### Class

- `descendants`
- `subclasses`

#### Enumerable

- `compact`
- `tally` (with hash argument)

### File

- `dirname` (with depth argument)

#### MatchData

- `match`
- `match_length`

#### Struct

- `keyword_init?`

## [3.21.0](https://github.com/marcandre/backports/compare/v3.20.1...v3.21.0) - 2021-03-31

### Added

- Added `String#unpack1` (Ruby 2.4) [#166]

## [3.20.1](https://github.com/marcandre/backports/compare/v3.20.0...v3.20.1) - 2021-01-03

### Fixed

- Added `Ractor.[]` and `[]=` [#161]
- `Ractor.current` fixed from threads [#161]

## [3.20.0](https://github.com/marcandre/backports/compare/v3.19.0...v3.20.0) - 2020-12-30

### Added

Ractor backport (all methods)

## [3.19.0](https://github.com/marcandre/backports/compare/v3.18.2...v3.19.0) - 2020-12-28

### Added

- Ruby 3.0 backports

  - Env

    - `except`

  - Hash

    - `except`
    - `transform_keys`, `transform_keys!` (with hash argument)

  - Symbol
    - `name`

- Ruby 2.3 backports

  - Queue
    - `close`, `closed?` (affects `push`, `pop` and aliases)

## [3.18.2](https://github.com/marcandre/backports/compare/v3.18.0...v3.18.2) - 2020-08-26

### Fixed

Require per ruby version now properly requiring 2.3.0 backports for `String` [#152]

## [3.18.1](https://github.com/marcandre/backports/compare/v3.18.1...v3.18.2) - 2020-06-22

### Fixed

Fixed Changelog URI in gem manifest

## [3.18.0](https://github.com/marcandre/backports/compare/v3.17.2...v3.18.0) - 2020-06-22

### Changed

Require per ruby version / all requires now check `RUBY_VERSION` to be more efficient [#149]

## [3.17.2](https://github.com/marcandre/backports/compare/v3.17.1...v3.17.2) - 2020-04-09

### Fixed

Fix Range#cover (Ruby 2.6.0) [#148]

## [3.17.1](https://github.com/marcandre/backports/compare/v3.17.0...v3.17.1) - 2020-04-09

### Fixed

Fix Range#size (Ruby 2.0) on Ruby 1.8.7 [#144]

## [3.17.0](https://github.com/marcandre/backports/compare/v3.16.2...v3.17.0) - 2020-03-06

### Added

- Ruby 2.6 backports

  - Range
    - `cover?` (with `Range` argument)

### Changed

Requiring features for a particular version of Ruby or `latest` is un-deprecated but
instead simply warned in verbose mode.

## [3.16.1](https://github.com/marcandre/backports/compare/v3.16.0...v3.16.1) - 2020-02-16

### Deprecated

Officially deprecate requiring features for a particular version of Ruby, `latest`, `std_lib` or `rails` backports.
Partly un-deprecated in 3.17.0!

### Fixed

`matrix` library when loaded in 2.7.0 [#141]

## [3.16.0](https://github.com/marcandre/backports/compare/v3.15.0...v3.16.0) - 2020-02-06

### Added

- Ruby 2.7 backports

  - Array

    - `intersection`

  - Comparable

    - `clamp` (with range)

  - Complex

    - `<=>`

  - Enumerable

    - `filter_map`
    - `tally`

  - Enumerator

    - `produce` (class method)

  - Time
    - `floor`, `ceil`

## [3.15.0] - 2019-05-15

### Added

- Proc / Method
  - `<<`, `>>`

## 3.14.0 - 2019-04-29

### Added

- Hash
  - `to_h` (with block)

## 3.13.0 - 2019-04-5

### Added

- Hash
  - `merge`, `merge!`/`update` (with multiple arguments)

## 3.12.0 - 2019-02-20

### Added

- Ruby 2.6.0 backports

  - Array

    - `difference`, `union`
    - `to_h` (with block)

  - Enumerable

    - `chain`
    - `to_h` (with block)

  - Enumerator::Chain (use Enumerable#chain)
  - Kernel
    - `then`

- Additional backports for 2.5.0:
  - String
    - `undump`

## 3.11.0 - 2017-12-25

### Added

- Ruby version 2.5.0 backports

  - Array

    - `append`, `prepend`

  - Dir

    - `children`, `each_child`

  - Enumerable

    - `any?`, `all?`, `none?`, `one?` (with pattern argument)

  - Hash

    - `slice`
    - `transform_keys`

  - Integer

    - `sqrt`
    - `allbits?`, `anybits?` and `nobits?`

  - Kernel

    - `yield_self`

  - Module

    - `attr`, `attr_accessor`, `attr_reader`, `attr_writer` (now public)
    - `define_method`, `alias_method`, `undef_method`, `remove_method`
      (now public)

  - String

    - `delete_prefix`, `delete_prefix!`
    - `delete_suffix`, `delete_suffix!`

  - Struct
    - `new` (with `keyword_init: true`)

- `require 'backports/latest'` is now the way to require everything, but is
  discouraged

## 3.10.0 - 2017-10-17

### Added

- Additional features of 2.4.0

  - Enumerable

    - `uniq`
    - `sum`

  - Hash
    - `compact`
    - `transform_values`

## 3.9.0 - 2017-10-07

### Added

- From 2.4.0: `dup` for `true`, `false`, `nil`, Numeric
- From 2.2.0: `Method#super_method`

## 3.8.0 - 2017-04-26

### Added

- From 2.4.0: `String#match?`, `Regexp#match?`

- From 2.3.0:

  - unary `String#+`, `-`
  - Numeric: `positive?`, `negative?`
  - Hash: `to_proc`, `fetch_values`, `>`, `<`, `>=`, `<=`
  - Enumerable: `chunk_while`, `grep_v`
  - `{Array|Hash|Struct}#dig`
  - `Array#bsearch_index`

- From 2.2.0:
  - `Method#curry`
  - `String#unicode_normalize{|?|!}`
  - `Kernel#itself`
  - Float: `next_float`, `prev_float`

## 3.7.0 - 2017-03-28

Initiate work on backports of 2.2, 2.3, 2.4

### Added

- From 2.4.0:

  - `Comparable#clamp`

- From 2.2.0:
  - Enumerable: `slice_when`, `slice_after`

## 3.6.0 - 2014-02-14

### Added

- Additional features of 2.1.0
  - Bignum#bit_length
  - Fixnum#bit_length
  - Module#include (now public)

## 3.5.0 - 2014-02-3

### Added

- Additional features of 2.0.0
  - Range#size

## 3.4.0 - 2013-12-29

### Added

- Additional features of 2.1.0
  - Array#to_h, Enumerable#to_h

## 3.3.0 - 2013-04-03

### Fixed

- Moved `Proc#yield` & `Hash#key` from 1.8.7 to 1.9.1

## 3.2.0 - 2013-04-02

### Fixed

- Moved `Dir.mktmpdir` to the stdlib 'tmpdir' for Ruby 1.8.7

### Removed

- Removed `returning` as it is no longer part of Rails.

## 3.1.0 - 2013-03-05

### Added

- Backports can now be loaded separately!

### Fixed

- Small tweaks and fixes for many methods to pass more RubySpecs

## 3.0.0 - 2013-02-24

### Added

- Additional features of 2.0.0

  - Struct#to_h, NilClass#to_h, Hash#to_h
  - Hash#default_proc = nil
  - OpenStruct lib

- 1.8.7's Enumerator#with_index (it wasn't in the 1.8.7 NEWS file...)

## 2.8.0 - 2013-02-3

### Added

- Added some features of 2.0.0 (must be required explicitly until official
  release):
  - Array#bsearch
  - Range#bsearch

## 2.7.0 - 2013-01-14

### Added

- Features of 2.0.0 (must be required explicitly until official
  release):
  - Enumerable#lazy
  - Enumerator::Lazy

## 2.6.0 - 2012-05-29

### Removed

- Enumerable#join

## 2.5.0 - 2012-02-25

### Added

- Some features of 1.9.3:
  - IO::NULL
  - IO#advise
  - String#byteslice
  - String#prepend

## 2.4.0 - 2012-02-24

### Added

- Add backporting for libraries

- Bring libraries up to date:

  - Matrix
  - Prime
  - Set

- Some features of 1.9.3:

  - IO.write, IO.binwrite

- Forcing backports (must be required explicitly):
  - Hash#select (returns a Hash instead of an Array)
  - Enumerable / Array#map (returns an enumerator when called without a
    block)
  - String#length, size (for UTF-8 support)

## 2.3.0 - 2011-05-13

### Added

- `Enumerator::Yielder#<<`

## 2.2.0 - 2011-05-13

### Fixed

- Ruby 1.8.8 was officially cancelled; code was moved to Ruby 1.9.1 and
  README updated.

- `"".ord` now raises an error.

## 2.1.0 - 2011-04-16

### Added

- Proc#curry, #lambda (thanks Konstantine Haase)

## 2.0.0 - 2010-12-5

### Fixed

Change of major version because of two small changes that are not quite
compatible and because the minor version was getting quite high!

- Remove attempt at faking the new method missing. Unless you used
  `respond_to_missing` **and**
  `method(:some_method_handled_with_method_missing)`, you won't see a
  difference, except better performance (see issue #32) and this fixes some
  errors (see issue #34)

- Change behavior of array.flatten(0) to match Ruby 1.9 (i.e. return a dup
  of array, instead of array itself)

## 1.18.0 - 2010-06-19

### Added

- Some features of 1.9.1:

  - Math#log2, Math#log with base

### Fixed

- Enumerator#each in 1.8.6.

## 1.17.0 - 2010-05-17

### Added

- Some features of 1.9.2:

  - Array#repeated_combination, #repeated_permutation

## 1.16.2 - 2010-04-11

### Added

- Some features of 1.9.2:

  - Array#uniq, #uniq! (with block)
  - Array#product (with block)
  - Dir.home
  - Hash#keep_if, select!
  - Random (new class)

## 1.15.0 - 2010-02-23

### Added

- A features of 1.9.2:

  - Object#singleton_class

## 1.14.0 - 2010-02-3

### Added

- Some features of 1.9.2:

  - Array#rotate, rotate!
  - Array#keep_if, select!
  - Array#sort_by!
  - Enumerable#join
  - Enumerable#slice_before
  - Float::INFINITY, NAN
  - MatchData#==

## 1.13.0 - 2010-01-20

### Added

- Missing for 1.8.7 were
  - Array#permutation
  - Hash#hash (was only inherited)
  - Hash#eql? (was only inherited)

## 1.12.0 - 2009-12-4

### Added

- Finer grain includes (see README) require "backports/1.9" # requires
  all ruby backports require "backports/1.9.1" # requires all ruby
  backports up to 1.9.1 (but not 1.9.2)

- Backported all builtin methods of 1.8.8 (most of which where moved from
  the 1.9 backports)

- Refreshed README

## 1.11.0 - 2009-11-04

### Added

- Enumerable#flat_map / collect_concat (Ruby 1.9)

- Object#public_send (Ruby 1.9)

- Object#public_method (Ruby 1.9)

## 1.10.0 - 2009-09-29

### Added

- Enumerable#chunk (Ruby 1.9)

- Kernel#respond_to_missing? (Ruby 1.9)

- Completed Process.exec (Ruby 1.8.7)

## 1.9.0 - 2009-09-04

### Added

- In Ruby 1.9, most class methods of File accept filenames as String, or
  convertible via #to_str or #to_path.

- File#to_path is also an alias to File#path. These have been backported.

- File.binread (actually IO.binread)

- BasicObject available via "require 'backports/basic_object"

## 1.8.4 - 2009-09-03

### Added

`Dir.mktmpdir` for older version of 1.8.6

## 1.8.1 - 2009-09-01

### Added

The alias String#lines (Ruby 1.8.7)

## 1.8.0 - 2009-08-30

### Added

Backports can be required selectively:

- backports/1.8.7
- backports/1.9 (which include 1.8.7)
- rails

## 1.7.1 - 2009-08-20

### Fixed

`Enumerable#take` and `Enumerable#first(n)` are now returning as soon as possible.
Previously, `#each` was yielding one element too many. See redmine issue #1554.

## 1.7.0 - 2009-05-27

### Fixed

Porting all 1.8.7 features to rubinius was quite enlightening
(http://blog.marc-andre.ca/2009/05/schizo-ruby-puzzle.html ). Many
improvements were made to be consistent with MRI, e.g. converting arguments
using to_int if needed, etc... The changes are now reflected in 'backports'.

### Added

Some IO and ARGF methods were missing and are now complete.

## 1.6.6 - 2009-04-30

### Fixed

Important bug fix. `String#gsub` is left alone until I find a good way to modify
it.

## 1.6.0 - 2009-04-29

### Added

Completed backport to 1.8.7.

- Array

  - `extract_options!`

- Binding

  - `eval`

- Dir

  - `each`, `foreach`

- Enumerator

  - `new`
  - `with_object`
  - `next`, `rewind`

- Hash

  - Optional block for `delete_if, each, each_key, each_pair, each_value, reject!, select` (and ENV)

- Integer

  - moved stuff out of Fixnum
  - Optional block for `downto`, `times`, `upto`

- IO

  - Optional block for `each`, `each_line`, `each_byte`, `foreach` (and
    ARGF)

- Kernel

  - `loop`, `StopIteration`
  - +**method**+, +**callee**+

- Method

  - `name`, `owner`, `receiver`

- Module

  - `class_exec`, `module_exec`

- Numeric

  - `step`

- Object

  - `define_singleton_method`
  - `instance_exec`

- ObjectSpace

  - `each_object`

- Range

  - Optional block for `each`, `step`

- Regexp

  - `union`

- String

  - `try_convert`
  - `ascii_only?`
  - `bytesize`
  - `chr`
  - `clear`
  - `codepoints`, `each_codepoint`
  - `stringify_keys`, `stringify_keys!`
  - `each`, `each_line`, `each_byte`
  - `gsub`
  - `upto`

- Struct

  - `each`, `each_pair`

- Symbol

  - `<=>`, `casecmp`
  - `capitalize`, `downcase`, `next`, `succ`, `swapcase`, `upcase`
  - `=~, [], empty?, length, match, size`

- UnboundMethod
  - `name`, `owner`

## 1.5.0 - 2009-04-24

### Added

- Array (completed)

  - `combination`
  - `try_convert`
  - Optional block for `collect!, :map!, :each, :each_index, :reject, :reject!, :delete_if`
  - `pop`, `shift`
  - `product`

- Fixnum (completed)

  - `div`, `fdiv`
  - `succ`
  - `magnitude`

- Enumerable (completed)
  - `each_with_object`
  - `inject`
  - `max_by`, `min_by`, `minmax`, `minmax_by`
  - `reduce`
  - `to_a`

## 1.4.0 - 2009-04-21

### Added

- String

  - `rpartition`

- Proc
  - `yield`

## 1.3.0 - 2009-04-17

### Added

- Enumerable

  - `none?`

- Array

  - `sample`, `shuffle`, `shuffle!`

- String
  - `each_char`, `chars`
  - `partition`

Tests and fixes for `String#start_with?` and `String#end_with?`

## 1.2.0 - 2009-04-12

### Added

- Array

  - `reverse_each`
  - `cycle`

- Enumerable

  - `reverse_each`
  - `each_slice`, `each_cons`
  - `count`
  - `cycle`
  - `group_by`

- Hash
  - `default_proc=`

## 1.1.0 - 2009-04-11

### Added

- Array

  - `flatten`, `flatten!`
  - `find_index`, `index`

- Hash
  - `reverse_merge`, `reverse_merge!`

## 1.0.0 - 2009-04-2

- Initial release.

## Notes

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).

[unreleased]: https://github.com/marcandre/backports/compare/v3.16.0...HEAD
[3.16.0]: https://github.com/marcandre/backports/compare/v3.15.0...v3.16.0
[3.15.0]: https://github.com/marcandre/backports/compare/v3.14.0...v3.15.0