Log Message:
=== Beats version 5.5.2

No changes in this release.

=== Beats version 5.5.1

==== Bugfixes

Affecting all Beats
- Normalize all times to UTC to ensure proper index naming.

=== Beats version 5.5.0

==== Breaking changes

Affecting all Beats
- Usage of field `_type` is now ignored and hardcoded to `doc`.

Metricbeat
- Change all `system.cpu.*.pct` metrics to be scaled by the number of
  CPU cores.

==== Bugfixes

Affecting all Beats
- Fix console output.

Filebeat
- Allow string characters in user agent patch version (NGINX and Apache)

Metricbeat
- Fix type of field `haproxy.stat.check.health.last`.

Packetbeat
- Fix `packetbeat.interface` options that contain underscores (e.g.
  `with_vlans` or `bpf_filter`).
- Enabled /proc/net/tcp6 scanning and fixed ip v6 parsing.

==== Deprecated

Filebeat
- Deprecate `document_type` prospector config option as _type is removed
  in elasticsearch 6.0. Use fields instead.

Winlogbeat
- Deprecated metrics endpoint. It is superseded by a libbeat feature
  that can serve metrics on an HTTP endpoint.