Issue #16488 has been updated by mame (Yusuke Endoh).


I've pushed https://github.com/ruby/ruby/commit/65c2c75e162ebc8c4b35b0823967eeb132c00749.  Could you please check if the fix works for your program?  Thanks!

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Bug #16488: 2.7 spews warnings about net/imap
https://bugs.ruby-lang.org/issues/16488#change-83711

* Author: chdiza (Charles Diza)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-darwin18]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
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I just upgraded from 2.6.5 to 2.7.0.  Some of my scripts are now emitting warnings that weren't there before.  Eg., #16469.

Specifically in this report I want to complain that ruby 2.7 is issuing warnings about it's own net/imap library:

lib/ruby/2.7.0/Net/imap.rb:906: warning: Capturing the given block using Proc.new is deprecated; use `&block` instead



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