Ruby Issue Tracking System

03/31/2026

11:57 PM Ruby Feature #21975 (Open): Add "UTF-八" as an alias for UTF-8 encoding

In Japan, legal texts must write all characters - including digits - using full-width or kanji forms. As a result, the encoding name "UTF-8"
appears as "UTF-八" (八 = eight in kanji) in official government notices.
Specifically, it a... ko1 (Koichi Sasada)

04:05 PM Ruby Feature #21973: Smile argument

Implementation should be easy like that :)
```ruby
def q(a:, b:1)
p a:, b: #=> {a: 10, b: 20}
end
def smile_send mid, b, *params
h = {}
method(mid).parameters.each do |(type, key)|
case type
when :keyreq
... ko1 (Koichi Sasada)

03/16/2026

10:56 PM Ruby Feature #21869: Add receive_all Method to Ractor API for Message Batching

synacker (Mikhail Milovidov) wrote in #note-4:
> Yes, it blocks if the queue empty. The method ```receive_all``` accepts a limit parameter:
> ...
The parameter `limit` is not in the description. Let me clarify `limit == 0`. In above qu... ko1 (Koichi Sasada)

02/17/2026

09:44 AM Ruby Misc #21916 (Open): DevMeeting before RubyKaigi 2026

RubyKaigi 2026 will be at Hakodate, Japan, Apr 22th - 24th.
We would like to try to hold a face-to-face dev meeting at Hakodate. (@matz will also participate!)
* Date: 2026/04/21 (Tue.) 15:00-17:00 (The day before RubyKaigi)
* Locat... ko1 (Koichi Sasada)

02/10/2026

07:15 AM Ruby Feature #21869: Add receive_all Method to Ractor API for Message Batching

Does it block when the queue is empty or returns []? (I think the example expects blocking) ko1 (Koichi Sasada)

04:58 AM Ruby Feature #21788: Promote Thread::Monitor to a core class

BTW, why performance is improved? ko1 (Koichi Sasada)

02/04/2026

03:40 AM Ruby Revision 2ba2950d (git): show loadavg if the test fails

to survey the following failure:
```
1) Failure:
TestFile#test_stat [/tmp/ruby/src/trunk-repeat20/test/ruby/test_file.rb:412]:
Expected |1770056232.744032 - 1770056230.6465776| (2.097454309463501) to be <= 1.
```
BTW I found that `te... ko1 (Koichi Sasada)

03:10 AM Ruby Revision 42c1d1dc (git): add deps

ko1 (Koichi Sasada)

02/03/2026

09:03 AM Ruby Revision 5ebccee5 (git): check zeros

raise when assert_linear_performance measures only zeros to check the following error:
```
1) Error:
TestRegexp#test_linear_performance:
Test::Unit::ProxyError: nil can't be coerced into Integer
/home/opc/ruby/src/master/test/ruby... ko1 (Koichi Sasada)

08:42 AM Ruby Revision f045a820 (git): try to extend timeout

for the following failure:
```
1) Timeout:
TestResolvDNS#test_multiple_servers_with_timeout_and_truncated_tcp_fallback
``` ko1 (Koichi Sasada)