Filebeat to support TLS1.3

Elastic Stack Beats
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Does filebeat 7.16.0 suport TLS 1.3?

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Hi @Nikhitha.

Filebeat 7.16 has been built with Golang 1.17.2. Golang supports TLS 1.3 since Golang 1.13.

Is there a specific use case you have in mind?

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Hello @Edoardo_Tenani ,
Trying to test if Filebeat supports TLS 1.3, So to do this we need a connection with Logstash. Logstash has input beats plugin which is currently not supporting TLS 1.3 Beats input plugin | Logstash Reference [8.1] | Elastic, so is there any way I can achieve this.

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Have you tried configuring TLS 1.3 even if the documentation says max is 1.2? It may be the documentation is outdated.

I found an in progress issue for TLS 1.3 support in Logstash and asked clarification there.

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This comment confirms that support for TLS 1.3 for beats is not yet available, but expected to land soon:

for Beats, unfortunately, the tls_max_version parameter is hard-coded to 1.2 thus it does not adapt to enabling 1.3 despite the underlying Java SSL engine having the support (likely relates to the cipher_suites parameter which also needs revisiting). part of this meta issue we plan to look into getting Beats ready for TLS 1.3 - work is done plugin by plugin, hopefully Beats will be completed within the next few weeks.

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