o <a href=/v1.20/docs/tasks/observability/distributed-tracing/lightstep/>Lightstep</a></p></li><li><p>Added the option to disable tracing for Mixer-backed services entirely.</p></li><li><p>Added policy decision-aware tracing.</p></li></ul></li><li><p><strong>Default TCP Metrics</strong>. Added default metrics for tracking TCP connections.</p></li><li><p><strong>Reduced Load Balancer Requirements for Addons</strong>. Stopped exposing addons
via separate load balancers. Instead, addons are exposed via the Ist