🚀 Feature Proposal

Hey folks!

The diagnostics_channel was landed on v15 and seems fair to think about to include it on fastify core, since that it will help the APM vendors and self-analysis.

@Qard made nice work there and I mentioned here to help us if needed.

For further information, check the PR here and the changelog here.

The stability on the core is still experimental but seems fair to talk about now.