Issue #10548 has been updated by Masaya Tarui.

Subject changed from Callcc is now going obsoleted.  Please use Fiber. to remove callcc (Callcc is now going obsoleted.  Please use Fiber.)
Category set to ext
Status changed from Closed to Open
Target version set to next minor

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Feature #10548: remove callcc (Callcc is now going obsoleted.  Please use Fiber.)
https://bugs.ruby-lang.org/issues/10548#change-50105

* Author: Masaya Tarui
* Status: Open
* Priority: Normal
* Assignee: 
* Category: ext
* Target version: next minor
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We are paying a lot of costs for callcc's consistency.
and currently, we can use Fiber in many situation.

In https://bugs.ruby-lang.org/projects/ruby/wiki/DevelopersMeeting20140517Japan,
matz agreed to remove callcc.

If there is no refutation, remove callcc in the future version. 



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