Github user JonZeolla commented on the issue:
https://github.com/apache/metron/pull/844
There is no requirement to upgrade bro with this change. All old fields and
logs are still supported, this simply adds support for the new fields in
existing logs or new logs altogether to be supported. You may notice that I
removed capture password, as it is an internal field and never exposed to logs.
It should not have been in there in the first place.---
