# Subtle change in ruby 1.9

**URL:** <https://www.ruby-forum.com/t/subtle-change-in-ruby-1-9/71559>\
**Category:** Ruby\
**Created:** [October 9, 2006, 10:46pm UTC](https://www.ruby-forum.com/t/subtle-change-in-ruby-1-9/71559 "2006-10-09T22:46:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rykkers](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e5b9ba/32.png) [@rykkers](https://www.ruby-forum.com/u/rykkers)\
**Post date:** [October 9, 2006, 10:46pm UTC](https://www.ruby-forum.com/t/subtle-change-in-ruby-1-9/71559/1 "2006-10-09T22:46:54Z")

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While reading the ruby source code, I found an interesting trivia  
nugget about module mix-in semantics, and that it appears to be subtly  
changing in 1.9.

I hadn’t seen mention of this change anywhere, so I wrote about it  
today.

[http://talklikeaduck.denhaven2.com/articles/2006/10/09/a-subtle-change-to-mixin-semantics-in-ruby-1-9](http://talklikeaduck.denhaven2.com/articles/2006/10/09/a-subtle-change-to-mixin-semantics-in-ruby-1-9)

–  
Rick DeNatale

My blog on Ruby  
[http://talklikeaduck.denhaven2.com/](http://talklikeaduck.denhaven2.com/)

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**Author:** ![rykkers](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e5b9ba/32.png) [@rykkers](https://www.ruby-forum.com/u/rykkers)\
**Post date:** [October 10, 2006, 12:11am UTC](https://www.ruby-forum.com/t/subtle-change-in-ruby-1-9/71559/2 "2006-10-10T00:11:03Z")

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On Oct 9, 2:45 pm, “Rick DeNatale” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> While reading the ruby source code, I found an interesting trivia  
> nugget about module mix-in semantics, and that it appears to be subtly  
> changing in 1.9.
> 
> I hadn’t seen mention of this change anywhere, so I wrote about it today.
> 
> [http://talklikeaduck.denhaven2.com/articles/2006/10/09/a-subtle-chang](http://talklikeaduck.denhaven2.com/articles/2006/10/09/a-subtle-chang)…

Interesting.

Slightly off topic, but I’m curious what you think of fine grained  
mixins:

[http://rubyforge.org/docman/view.php/735/309/readme.html](http://rubyforge.org/docman/view.php/735/309/readme.html)

This was mostly done in response to “Roles” in Perl 6.

Regards,

Dan