Yes, we highly recommend you update your Sumo Logic Installed Collector. Sumo Logic’s Installed Collector is designed to not invoke anything that it is receiving on the internet. Further, the logging that we do use Log4j for in our collector is for internal audit purposes only—so these vulnerabilities never posed any significant risk. As a precaution, we’ve released four updates (as of 12/29/2021) to our Installed Collector to support patches and updates the Apache Software Foundation has made to their Log4j code.