September 2025: Focused on improving trace subsystem onboarding and documentation clarity for MicroEJ/docs. Delivered targeted documentation clarifications that the trace system requires an immortal heap size of at least 16, linked to the core.memory.immortal.size option. Updated trace-related documentation across trace.rst and ApplicationDeveloperGuide/trace.rst, ensuring consistency with project standards. No code changes were required; the contribution enhances onboarding, reduces configuration errors, and supports faster resolution of customer inquiries related to tracing. Commits associated with this work include updates to both trace.rst and ApplicationDeveloperGuide/trace.rst, reflecting release-quality documentation improvements.