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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.

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/e2mmap.rb

Keiju ISHITSUKA (keiju)

lib/erb.rb

Masatoshi SEKI (seki)

lib/find.rb

Kazuki Tsujimoto (ktsj)

lib/forwardable.rb

Keiju ISHITSUKA (keiju)

lib/getoptlong.rb

unmaintained

lib/ipaddr.rb

Akinori MUSHA (knu)

lib/irb.rb, lib/irb/*

Keiju ISHITSUKA (keiju)

lib/logger.rb

Naotoshi Seo (sonots)

lib/mathn.rb

Keiju ISHITSUKA (keiju)

lib/matrix.rb

Marc-Andre Lafortune (marcandre)

lib/mkmf.rb

unmaintained

lib/monitor.rb

Shugo Maeda (shugo)

lib/mutex_m.rb

Keiju ISHITSUKA (keiju)

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/ostruct.rb

Marc-Andre Lafortune (marcandre)

lib/pp.rb

Tanaka Akira (akr)

lib/prettyprint.rb

Tanaka Akira (akr)

lib/prime.rb

Yuki Sonoda (yugui)

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/rexml/*

Kouhei Sutou (kou)

lib/rinda/*

Masatoshi SEKI (seki)

lib/rss.rb, lib/rss/*

Kouhei Sutou (kou)

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

Eric Hodel (drbrain), Hiroshi SHIBATA (hsbt)

lib/set.rb

Akinori MUSHA (knu)

lib/securerandom.rb

Tanaka Akira (akr)

lib/shell.rb, lib/shell/*

Keiju ISHITSUKA (keiju)

lib/shellwords.rb

Akinori MUSHA (knu)

lib/singleton.rb

Yukihiro Matsumoto (matz)

lib/sync.rb

Keiju ISHITSUKA (keiju)

lib/tempfile.rb

unmaintained

lib/tmpdir.rb

unmaintained

lib/thwait.rb

Keiju ISHITSUKA (keiju)

lib/time.rb

Tanaka Akira (akr)

lib/timeout.rb

Yukihiro Matsumoto (matz)

lib/tracer.rb

Keiju ISHITSUKA (keiju)

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/fiddle

Aaron Patterson (tenderlove)

ext/io/nonblock

Nobuyuki Nakada (nobu)

ext/io/wait

Nobuyuki Nakada (nobu)

ext/mathn/complex

Keiju ISHITSUKA (keiju)

ext/mathn/rational

Keiju ISHITSUKA (keiju)

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/stringio

Nobuyuki Nakada (nobu)

ext/syslog

Akinori MUSHA (knu)

ext/win32

NAKAMURA Usaku (usa)

ext/win32ole

Masaki Suketa (suke)

Default gems Maintainers

Libraries

lib/cmath.rb

unmaintained

lib/csv.rb

James Edward Gray II (jeg2)

lib/fileutils.rb

unmaintained

lib/rdoc.rb, lib/rdoc/*

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

lib/scanf.rb

David A. Black (dblack)

lib/webrick.rb, lib/webrick/*

Hiroshi Nakamura (nahi)

Extensions

ext/bigdecimal

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

ext/date

unmaintained

ext/dbm

unmaintained

ext/etc

unmaintained

ext/fcntl

unmaintained

ext/gdbm

Yukihiro Matsumoto (matz)

ext/io/console

Nobuyuki Nakada (nobu)

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)

ext/strscan

unmaintained

ext/zlib

unmaintained

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