updated to version 1.12.0
see installed CHANGELOG.md
# v1.12

## Release v1.12.0 - 2020/01/05

### New feature

* in_tail: Add `follow_inode` to support log rotation with wild card
https://github.com/fluent/fluentd/pull/2992
* in_tail: Handle linux capability
https://github.com/fluent/fluentd/pull/3155
https://github.com/fluent/fluentd/pull/3162
* windows: Add win32 events alternative to unix signals
https://github.com/fluent/fluentd/pull/3131

### Enhancement

* buffer: Enable metadata comparison optimization on all platform
https://github.com/fluent/fluentd/pull/3095
* fluent-plugin-config-formatter: Handle `service_discovery` type
https://github.com/fluent/fluentd/pull/3178
* in_http: Add `add_query_params` parameter to add query params to event record
https://github.com/fluent/fluentd/pull/3197
* inject: Support `unixtime_micros` and `unixtime_nanos` in `time_type`
https://github.com/fluent/fluentd/pull/3220
* Refactoring code
https://github.com/fluent/fluentd/pull/3167
https://github.com/fluent/fluentd/pull/3170
https://github.com/fluent/fluentd/pull/3180
https://github.com/fluent/fluentd/pull/3196
https://github.com/fluent/fluentd/pull/3213
https://github.com/fluent/fluentd/pull/3222

### Bug fix

* output: Prevent retry.step from being called too many times in a short time
https://github.com/fluent/fluentd/pull/3203