[[breaking-changes]]
== Breaking changes

This section discusses the changes that you need to be aware of when migrating to Logstash 6.0.0 from the previous major releases.

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=== Changes in Logstash Core

These changes can impact any instance of Logstash and are plugin agnostic, but only if you are using the features that are impacted.

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==== Application Settings

* The setting `config.reload.interval` has been changed to use time value strings such as `5m`, `10s` etc.
  Previously, users had to convert this to a millisecond time value themselves. 

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==== RPM/Deb package changes

* For `rpm` and `deb` release artifacts, config files that match the `*.conf` glob pattern must be in the conf.d folder, 
  or the files will not be loaded.
  
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==== Command Line Interface behavior

* The `-e` and `-f` CLI options are now mutually exclusive. This also applies to the corresponding long form options `config.string` and 
  `path.config`. This means any configurations  provided via `-e` will no longer be appended to the configurations provided via `-f`.
* Configurations provided with `-f` or `config.path` will not be appended with `stdin` input and `stdout` output automatically.

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==== List of plugins bundled with Logstash

The following plugins were removed from the 5.0 default bundle based on usage data. You can still install these plugins manually:

* logstash-codec-oldlogstashjson
* logstash-input-couchdb_changes
* logstash-input-irc
* logstash-input-log4j
* logstash-input-lumberjack
* logstash-filter-uuid
* logstash-output-xmpp
* logstash-output-irc
* logstash-output-statsd
