[asterisk-dev] asterisk release 18.21.0-rc2

[Asterisk Development Team]

The Asterisk Development Team would like to announce  
release candidate 2 of asterisk-18.21.0.

The release artifacts are available for immediate download at  
https://github.com/asterisk/asterisk/releases/tag/18.21.0-rc2
and
https://downloads.asterisk.org/pub/telephony/asterisk

This release resolves issues reported by the community  
and would have not been possible without your participation.

Thank You!


Change Log for Release asterisk-18.21.0-rc2
========================================

Links:
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 - [Full ChangeLog](https://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-18.21.0-rc2.md)  
 - [GitHub Diff](https://github.com/asterisk/asterisk/compare/18.21.0-rc1...18.21.0-rc2)  
 - [Tarball](https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-18.21.0-rc2.tar.gz)  
 - [Downloads](https://downloads.asterisk.org/pub/telephony/asterisk)  

Summary:
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- logger: Fix linking regression.

User Notes:
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Upgrade Notes:
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Closed Issues:
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  - #539: [bug]: Existence of logger.xml causes linking failure