ReleaseEngineering » History » Version 37

Version 36 (Usaku NAKAMURA, 05/13/2014 10:23 AM) → Version 37/41 (Shota Fukumori, 05/14/2014 07:00 AM)

# Release Engineering

## Active branch

### trunk

* Status: developing to 2.2
* release manager: naruse
* ABI Version: 2.2.0
* [[ruby-trunk:ReleaseEngineering22]]

### ruby_2_1

* Status: maintained
* Maintainer: nagachika
* ABI Version: 2.1.0

* [[ruby-trunk:ReleaseEngineering210]]

### ruby_2_0_0

* Status: maintained
* Maintainer: usa
* ABI Version: 2.0.0

* 2013-02-24: 24, February 2013: 2.0.0-p0 released
* EOL date is not decided yet.

### ruby_1_9_3

* Status: maintained
* Maintainer: usa
* ABI Version: 1.9.1

* Normal maintenance: finish on 2014-02-23
* Security maintenance: finish on 2015-02-23

### ruby_1_9_2

* Status: [EOL](https://twitter.com/ayumin/status/340699195134595072/photo/1)
* Maintainer: hone
* ABI Version: 1.9.1

* Normal maintenance: finished on June 2012
* Security fixes: finished on 2013-06-01
* Extended maintenance: finished on 2014-06-30

### ruby_1_8_7

* Status: [EOL](https://www.ruby-lang.org/en/news/2013/06/30/we-retire-1-8-7/)
* Maintainer: hone
* ABI Version: 1.8

* Extended maintenance: finished on 2014-06-30

## Obsoleted branch

### ruby_1_9_1

* Status: [EOL](http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/40523)
* ABI Version: 1.9.1

### ruby_1_8

* Status: EOL
* ABI Version: 1.8

### ruby_1_8_6

* Status: [EOL](http://www.engineyard.com/blog/2011/engine-yards-plans-for-ruby-1-8-6/)
* ABI Version: 1.8

### ruby_1_8_5

* Status: [EOL](http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/305727)
* ABI Version: 1.8

## Versioning Policy

### since release of 2.1.0(includes 2.1.0)

Format: X.Y.Z
X: major version; increased when incompatible change which can’t be released in MINOR
Y: minor version; increased every christmas, may be API incompatible
Z: teeny; security or bug fix which maintains API compatibility

### before 2.1.0
Format: X.Y.ZpP
X: major version; may increment in the future
Y: minor version; incremented with large improvement
Z: teeny; incremented with each release
P: patch level; incremented with each patch for the release

## History

[The History of Ruby](https://gist.github.com/3038095)

## Discussion

* The latest (unofficial) release plan discussion (2012/06/01) memo: https://twitter.com/mrkn/status/220044401433513984/photo/1/large It's only discussion. Not decided.