# Maintainers¶ ↑

This page describes the current module, library, and extension maintainers of Ruby.

## `Module` Maintainers¶ ↑

A module maintainer is responsible for a certain part of Ruby.

- The maintainer fixes bugs of the part. Particularly, they should fix security vulnerabilities as soon as possible.

- They handle issues related the module on the Redmine or ML.

- They may be discharged by the 3 months rule [ruby-core:25764].

- They have commit right to Ruby's repository to modify their part in the repository.

- They have “developer” role on the Redmine to modify issues.

- They have authority to decide the feature of their part. But they should always respect discussions on ruby-core/ruby-dev.

A submaintainer of a module is like a maintainer. But The submaintainer does not have authority to change/add a feature on his/her part. They need consensus on ruby-core/ruby-dev before changing/adding. Some of submaintainers have commit right, others don't.

### Language core features including security¶ ↑

Yukihiro Matsumoto (matz)

### Evaluator¶ ↑

Koichi Sasada (ko1)

### Core classes¶ ↑

Yukihiro Matsumoto (matz)

### Documentation¶ ↑

Zachary Scott (zzak)

## Standard Library Maintainers¶ ↑

### Libraries¶ ↑

lib/English.rb

  unmaintained

lib/abbrev.rb

  Akinori MUSHA (knu)

lib/base64.rb

  Yusuke Endoh (mame)

lib/benchmark.rb

  unmaintained

lib/cgi.rb, lib/cgi/*

  Takeyuki Fujioka (xibbar)

lib/drb.rb, lib/drb/*

  Masatoshi SEKI (seki)

lib/debug.rb

  unmaintained

lib/delegate.rb

  unmaintained

lib/erb.rb

  Masatoshi SEKI (seki), Takashi Kokubun (k0kubun)

lib/find.rb

  Kazuki Tsujimoto (ktsj)

lib/getoptlong.rb

  unmaintained

lib/mkmf.rb

  unmaintained

lib/monitor.rb

  Shugo Maeda (shugo)

lib/net/ftp.rb

  Shugo Maeda (shugo)

lib/net/imap.rb

  Shugo Maeda (shugo)

lib/net/http.rb, lib/net/https.rb

  NARUSE, Yui (naruse)

lib/net/pop.rb

  unmaintained

lib/net/protocol.rb

  unmaintained

lib/net/smtp.rb

  unmaintained

lib/observer.rb

  unmaintained

lib/open-uri.rb

  Tanaka Akira (akr)

lib/open3.rb

  unmaintained

lib/optparse.rb, lib/optparse/*

  Nobuyuki Nakada (nobu)

lib/pp.rb

  Tanaka Akira (akr)

lib/prettyprint.rb

  Tanaka Akira (akr)

lib/profile.rb

  unmaintained

lib/profiler.rb

  unmaintained

lib/pstore.rb

  unmaintained

lib/racc/*

  Aaron Patterson (tenderlove)

lib/resolv-replace.rb

  Tanaka Akira (akr)

lib/resolv.rb

  Tanaka Akira (akr)

lib/rinda/*

  Masatoshi SEKI (seki)

lib/rubygems.rb, lib/ubygems.rb, lib/rubygems/*

  Eric Hodel (drbrain), Hiroshi SHIBATA (hsbt) github.com/rubygems/rubygems

lib/set.rb

  Akinori MUSHA (knu)

lib/securerandom.rb

  Tanaka Akira (akr)

lib/shellwords.rb

  Akinori MUSHA (knu)

lib/singleton.rb

  Yukihiro Matsumoto (matz)

lib/tempfile.rb

  unmaintained

lib/tmpdir.rb

  unmaintained

lib/time.rb

  Tanaka Akira (akr)

lib/timeout.rb

  Yukihiro Matsumoto (matz)

lib/tsort.rb

  Tanaka Akira (akr)

lib/un.rb

  WATANABE Hirofumi (eban)

lib/unicode_normalize.rb, lib/unicode_normalize/*

  Martin J. Dürst

lib/uri.rb, lib/uri/*

  YAMADA, Akira (akira)

lib/weakref.rb

  unmaintained

lib/yaml.rb, lib/yaml/*

  Aaron Patterson (tenderlove), Hiroshi SHIBATA (hsbt)

### Extensions¶ ↑

ext/cgi

  Nobuyoshi Nakada (nobu)

ext/continuation

  Koichi Sasada (ko1)

ext/coverage

  Yusuke Endoh (mame)

ext/digest, ext/digest/*

  Akinori MUSHA (knu)

ext/fiber

  Koichi Sasada (ko1)

ext/io/nonblock

  Nobuyuki Nakada (nobu)

ext/io/wait

  Nobuyuki Nakada (nobu)

ext/nkf

  NARUSE, Yui (narse)

ext/objspace

  unmaintained

ext/pathname

  Tanaka Akira (akr)

ext/pty

  unmaintained

ext/racc

  Aaron Patterson (tenderlove)

ext/readline

  TAKAO Kouji (kouji)

ext/ripper

  unmaintained

ext/socket

  - Tanaka Akira (akr)

  - API change needs matz's approval

ext/syslog

  Akinori MUSHA (knu)

ext/win32

  NAKAMURA Usaku (usa)

ext/win32ole

  Masaki Suketa (suke)

## Default gems Maintainers¶ ↑

### Libraries¶ ↑

lib/bundler.rb, lib/bundler/*

  Hiroshi SHIBATA (hsbt) github.com/bundler/bundler

lib/cmath.rb

  unmaintained github.com/ruby/cmath

lib/csv.rb

  Kenta Murata (mrkn), Kouhei Sutou (kou) github.com/ruby/csv

lib/e2mmap.rb

  Keiju ISHITSUKA (keiju)

lib/fileutils.rb

  unmaintained github.com/ruby/fileutils

lib/forwardable.rb

  Keiju ISHITSUKA (keiju)

lib/ipaddr.rb

  Akinori MUSHA (knu)

lib/irb.rb, lib/irb/*

  Keiju ISHITSUKA (keiju)

lib/logger.rb

  Naotoshi Seo (sonots)

lib/matrix.rb

  Marc-Andre Lafortune (marcandre)

lib/mutex_m.rb

  Keiju ISHITSUKA (keiju)

lib/ostruct.rb

  Marc-Andre Lafortune (marcandre)

lib/prime.rb

  Yuki Sonoda (yugui)

lib/rdoc.rb, lib/rdoc/*

  Eric Hodel (drbrain), Hiroshi SHIBATA (hsbt) github.com/ruby/rdoc

lib/rexml/*

  Kouhei Sutou (kou)

lib/rss.rb, lib/rss/*

  Kouhei Sutou (kou)

lib/scanf.rb

  David A. Black (dblack) github.com/ruby/scanf

lib/shell.rb, lib/shell/*

  Keiju ISHITSUKA (keiju)

lib/sync.rb

  Keiju ISHITSUKA (keiju)

lib/thwait.rb

  Keiju ISHITSUKA (keiju)

lib/tracer.rb

  Keiju ISHITSUKA (keiju)

lib/webrick.rb, lib/webrick/*

  Eric Wong (normalperson) bugs.ruby-lang.org/

### Extensions¶ ↑

ext/bigdecimal

  Kenta Murata (mrkn) github.com/ruby/bigdecimal

ext/date

  unmaintained github.com/ruby/date

ext/dbm

  unmaintained github.com/ruby/dbm

ext/etc

  Ruby core team github.com/ruby/etc

ext/fcntl

  Ruby core team github.com/ruby/fcntl

ext/fiddle

  Aaron Patterson (tenderlove) github.com/ruby/fiddle

ext/gdbm

  Yukihiro Matsumoto (matz) github.com/ruby/gdbm

ext/io/console

  Nobuyuki Nakada (nobu) github.com/ruby/io-console

ext/json

  NARUSE, Yui (naruse), Hiroshi SHIBATA (hsbt) github.com/flori/json

ext/openssl

  Kazuki Yamaguchi (rhe) github.com/ruby/openssl

ext/psych

  Aaron Patterson (tenderlove), Hiroshi SHIBATA(hsbt) github.com/ruby/psych

ext/sdbm

  Yukihiro Matsumoto (matz) github.com/ruby/sdbm

ext/stringio

  Nobuyuki Nakada (nobu) github.com/ruby/stringio

ext/strscan

  unmaintained github.com/ruby/strscan

ext/zlib

  NARUSE, Yui (naruse) github.com/ruby/zlib

## Bundled gems upstream repositories¶ ↑

did_you_mean

  github.com/yuki24/did_you_mean

minitest

  github.com/seattlerb/minitest

net-telnet

  github.com/ruby/net-telnet

power_assert

  github.com/k-tsj/power_assert

rake

  github.com/ruby/rake

test-unit

  github.com/test-unit/test-unit

xmlrpc

  github.com/ruby/xmlrpc