We have released v1.13.1. ChangeLog is here.
This release is a maintenance release of v1.13 series.
in_tail: Fixed to remove too much verbose debugging logs
It was unexpectedly introduced by #3185 - log throttling feature in v1.13.0.
In this release, too much verbose debug logging was removed.
It has nothing to do with it when you didn't use
in_tail with debug level.
Upgrade attention for TD Agent users
If you use Fluentd v1.12 or later, we recommend to use at least v1.12.4 or later.
It is because
in_tail contains serious bugs in it.
Note that even latest td-agent 4.1.1 also ships a buggy Fluentd v1.12.3.
You should upgrade bundled Fluentd by yourself.
This issue will be fixed in the future release of td-agent.
$ sudo td-agent-gem install fluentd --version=1.13.1