| Age | Commit message (Expand) | Author |
| 2017-04-20 | Removed math mode from irb. | hsbt |
| 2015-12-16 | Add frozen_string_literal: false for all files | naruse |
| 2013-06-04 | * lib/irb/lc/ja/help-message: update help messages. | ayumin |
| 2013-06-02 | * lib/irb/lc/help-message: Apply english updates for irb --help #7510 | zzak |
| 2013-01-16 | * .document: Removed extra space | drbrain |
| 2012-12-25 | * lib/irb/init.rb, lib/irb/lc/ja/error.rb, lib/irb/lc/error.rb: | keiju |
| 2012-12-13 | * lib/irb*: merge doc from doc/irb/ird.rd and improve overall | zzak |
| 2011-05-18 | * lib: remove trailing spaces. | nobu |
| 2010-04-09 | * lib/irb/init.rb, lib/irb/lc/help-message, | mame |
| 2009-07-07 | * bin/irb, lib/irb.rb lib/irb/*: irb-0.9.6, extend inspect-mode | keiju |
| 2009-03-06 | * {ext,lib,test}/**/*.rb: removed trailing spaces. | nobu |
| 2008-12-18 | * lib/irb/init.rb (IRB.opt_parse): (M17N) adds -U and -E as command | yugui |
| 2008-01-06 | * $Date$ keyword removed to avoid inclusion of locale dependent | akr |
| 2007-12-27 | * lib/weakref.rb, lib/irb/ruby-lex.rb, lib/irb/lc/error.rb, enc/trans/japanes... | akr |
| 2005-04-13 | * bin/irb lib/irb.rb lib/irb/...: IRB 0.9.5. | keiju |
| 2004-02-20 | * lib/irb/init.rb (IRB::IRB.parse_opts): add -I option to | matz |
| 2003-03-23 | update NotImplementError to NotImplementedError. | matz |
| 2003-02-07 | * lib/irb/workspace.rb, lib/irb/ext/math-mode.rb, | knu |
| 2002-07-09 | * irb 0.9 | keiju |
| 2001-06-01 | * irb messages: fix typos. | keiju |
| 2001-05-03 | Get rid of Japanese comments and fix English comments as appropriate. | knu |
| 2001-04-30 | Initial revision | knu |