This edge release features a new configuration annotation, support for externally hosted Grafana instances, and other improvements in the CLI, dashboard and Helm charts. To learn more about using an external Grafana instance with Linkerd, you can refer to our [docs](https://github.com/linkerd/website/blob/0c3c5cd5ae329cd7dbcca18534f3bc8ec7d57859/linkerd.io/content/2.12/tasks/grafana.md). * Added a new annotation to configure skipping subnets in the init container (`config.linkerd.io/skip-subnets`). This configuration option is ideal for Docker-in-Docker (dind) workloads (thanks @michaellzc!) * Added support in the dashboard for externally hosted Grafana instances (thanks @jackgill!) * Introduced resource block to `linkerd-jaeger` Helm chart (thanks @yuriydzobak!) * Introduced parametrized datasource (`DS_PROMETHEUS`) in all Grafana dashboards. This allows pointing to the right Prometheus datasource when importing a dashboard * Introduced a consistent `--ignore-cluster` flag in the CLI for the base installation and extensions; manifests will now be rendered even if there is an existing installation in the current Kubernetes context (thanks @krzysztofdrys!) * Updated the service mirror controller to skip mirroring services whose namespaces do not yet exist in the source cluster; previously, the service mirror would create the namespace itself.