Direct support of log collection with OneAgent on AIX OS is not planned as described in the capabilities matrix.
You need to rely on other log collection tools and push them to Dynatrace Log Ingest API. For example push log entries using rsyslog to logstash (running on non-AIX) and then use the Logstash Dynatrace output plugin
It has been released last week.
I have already switched one environment, which worked fined.
I miss the summarize feature - and other things (every log line is now a message - even though the clearly are one log message).
I hate the fact that I had to upgrade all nodes to 64GB RAM, and this was not mentioned in the documentation.