v1.14.0

[kenhys]

Which issue(s) this PR fixes:

Fixes N/A

What this PR does / why we need it:

prepare v1.14.0 changelog

Docs Changes:

N/A

Release Note:

N/A

[ashie]

FYI: We've released 1.14.0.rc: https://rubygems.org/gems/fluentd/versions/1.14.0.rc

[kenhys]

Add #3481 entry.

[kenhys]

changelog and documentation status

• Added enable_input_metrics, enable_size_metrics system configuration parameter
  --enable-input-metrics,--enable-size-metrics command line
  • 1.0: document enable_input_metrics and enable_size_metrics fluentd-docs-gitbook#358
• Added reserved word @ROOT for getting root router.
  • 1.0: Add explanation about reserved @ROOT label fluentd-docs-gitbook#356
• in_syslog: Added send_keepalive_packet option
  • in_syslog: Add a new & a missing parameter fluentd-docs-gitbook#354
• in_http: Added cors_allow_credentials option.
  • 1.0: in_http: Add a new parameter cors_allow_credentials fluentd-docs-gitbook#355
• Added metrics plugin mechanism
  • 1.0: Add metrics plugin descriptions fluentd-docs-gitbook#347

[kenhys]

Now ready to ship it!

[cosmo0920]

🎉

[cosmo0920]

@kenhys @ashie Can we release fluentd x86-mingw32 and x64-mingw32 versions?
They are not released and it causes CI error on https://github.com/calyptia/fluent-plugin-metrics-cmetrics/runs/3457273532#step:5:1

[kenhys]

Done!

[cosmo0920]

Thanks!