JEP 519 aims to promote Compact Object Headers from an experimental status to a full-fledged product feature within the JVM. The change reflects confidence in the stability and performance of this feature, which has undergone extensive testing, including by major organizations like Oracle and Amazon. However, there is some concern in the community about the decision not to enable this feature by default, as many users may not be aware of the necessity to activate it for potential performance gains. Furthermore, benchmark tests show significant performance improvements, particularly in JSON parsing, with a reported 10% increase. An additional question raised by users pertains to the effect of this change on native image executables built using Graal, hinting at broader implications for performance optimization in various application deployments.