# Plan to Support Levels for Ruby 1.9.2

**URL:** <https://www.ruby-forum.com/t/plan-to-support-levels-for-ruby-1-9-2/187809>\
**Category:** Development\
**Created:** [April 29, 2010, 3:39pm UTC](https://www.ruby-forum.com/t/plan-to-support-levels-for-ruby-1-9-2/187809 "2010-04-29T15:39:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Yugui](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/ac91a4/32.png) [@Yugui](https://www.ruby-forum.com/u/Yugui)\
**Post date:** [April 29, 2010, 3:39pm UTC](https://www.ruby-forum.com/t/plan-to-support-levels-for-ruby-1-9-2/187809/1 "2010-04-29T15:39:31Z")

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HI,

Before release of Ruby 1.9.2, I would like to define a new guideline  
of the support levels for Ruby 1.9.2.

== Definition of the support levels  
The Ruby 1.9 series have four support levels.

(1) Supported:  
We ensure Ruby works fine before release. I do not release Ruby when  
an issue (†1) remains on a supported platform.

A platform can be “supported” when:

- Ruby is maintained on it (†2),
- And Ruby passes almost all the test cases and RubySpec on it,
- And we have a continuous build environment for Ruby on it,
- And it have been “supported” or “best effort” for more than an year.

(2) Best effort:  
We are trying making Ruby to work fine on it.  
I do not release Ruby when an serious issue remains on a best effort  
platform.

A platform can be “best effort” when:

- Ruby is maintained on it,
- And Ruby passes most of the test cases and RubySpec on it

(3) Perhaps:  
We think Ruby works on it, however, we do not care about it.  
I sometimes release Ruby even if there are issues on it.

A platform can be “perhaps” when:

- A similar platform is “supported” or “best effort”,
- Or Ruby is maintained on it
- Or a patch is recently applied for Ruby on the platform, and it is  
reported that Ruby works fine on it because of the patch.

(4) Not supported:  
We do not think Ruby works on it. A patch is always welcome.

- Any other systems

†1:  
A “Issue” means one on the redmine ([http://redmine.ruby-lang.org](http://redmine.ruby-lang.org) )  
†2:  
Ruby is “maintained” on a platform when:

- At least one committer always develops Ruby on the platform
- Or there is an assigned maintainer of Ruby for it

== List of candidate platforms  
Candidate for the “supported” platforms of Ruby 1.9.2 is only

- Debian GNU/Linux stable version on i386  
however the following two platforms can be the candidates if a  
continuous build environment is available:
- Mac OS X 10.5, 10.6 on Intel
- FreeBSD 6 or later (amd64, IA32)

Candidates for the “best effort platforms” are:

- Mac OS X 10.5, 10.6 on Intel
- FreeBSD 6 or later (amd64, IA32)
- Solaris 10 / OpenSolaris
- mswin32, mswin64, mingw32
- AIX 5.3 on PowerPC

AIX will be possibly “perhaps”. It depends on progress of development.

Candidates for the “perhaps” platforms are:

- Other versions of Debian GNU/Linux.
  - or stable version on other architectures

- Other Linux distributions
- Mac OS X 10.5 on PPC
- cygwin
- Other POSIX-compatible systems
- BeOS (Haiku)

Another platform can be a candidate for “best effort” or “perhaps”.  
You can add your platform to the list by satisfying the following  
definition.  
Let us know if you have a continuous build environment.

== Schedule  
2010-06-15:  
The list of candidates will be fixed.  
2010-06-30:  
The supported platforms and the support levels will be fixed.

Thank you,  
– Yuki S. (Yugui)