Ruby Issue Tracking System

05/07/2026

04:18 AM Ruby Bug #22015: Success without RUBY_BOX=1, Failure with RUBY_BOX=1

I believe https://github.com/ruby/ruby/pull/16865 addresses this issue. niku (niku _)

05/02/2026

05:02 AM Ruby Bug #22015: Success without RUBY_BOX=1, Failure with RUBY_BOX=1

I found a minimal reproduction case.
The issue seems to relate to how `Enumerable#flat_map` handles `Symbol#to_proc` within a `Ruby::Box` environment. Notably, `map(&:method)` works as expected, while `flat_map(&:method)` fails.
```... niku (niku _)

04/24/2026

03:57 PM Ruby Bug #22015 (Assigned): Success without RUBY_BOX=1, Failure with RUBY_BOX=1

```
$ ruby -v
ruby 4.1.0dev (2026-04-24T13:35:04Z master 52ee497f36) +PRISM [arm64-darwin25]
```
```
$ ruby -e 'require "bundler/inline"; gemfile {}'
```
It ran fine as expected, but it failed when I added RUBY_BOX=1.
```
... niku (niku _)

10/23/2025

12:16 AM Ruby Revision 36e7db00 (git): [DOC] Tweaks for TCPSocket.new

niku (niku _)

08/31/2025

06:55 AM Ruby Bug #21558: Regexp.union with multiple regexps returns a non-shareable object (should be shareable if possible)

I've found an issue that already talked about it https://bugs.ruby-lang.org/issues/17256. niku (niku _)

06:42 AM Ruby Bug #21558: Regexp.union with multiple regexps returns a non-shareable object (should be shareable if possible)

> Regexp.union creates a new instance, except for a single Regexp argument case.
Ah, that makes perfect sense now. Thank you for the detailed explanation.
```irb
irb(main):001> a = /a/
=> /a/
irb(main):002> a.__id__
=> 7232
ir... niku (niku _)

02:54 AM Ruby Bug #21558 (Feedback): Regexp.union with multiple regexps returns a non-shareable object (should be shareable if possible)

Regexp.union returns a non-shareable object when given multiple Regex arguments. Is this expected behavior?
It would be preferable if the resulting Regexp were shareable, since single-argument `Regexp.union` does produce a shareable obj... niku (niku _)

12/27/2022

12:15 PM Ruby Bug #18024: Ractor crashes when connections are closed in multiple Ractors

I also couldn't reproduce it on m2 mac with both ruby versions 3.0.0 which is reported and 3.2.0 the latest.
I hope it helps.
```
~/src/confirm_bugs.ruby-lang.org/18024 ()
asdf local ruby 3.0.0
~/src/confirm_bugs.ruby-lang.org/180... niku (niku _)

09/26/2012

05:51 PM Ruby Feature #6528: Add Pathname#write and Pathname#binwrite

> IO.read と対応する Pathname#read があるので
> ...
のところ、
> IO.read と対応する Pathname#read があるので
> ...
の誤りでしたので訂正します。
niku (niku _)

08/09/2012

07:56 PM Ruby Feature #6528: Add Pathname#write and Pathname#binwrite

どうでしょうか？
何か引っかかっている所があれば指摘してもらえると嬉しいです． niku (niku _)