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## edge-21.12.3

This edge release contains a few improvements to the CLI commands and a major
change around Helm charts.

* **Breaking change**

The `linkerd2` chart has been deprecated in favor of the `linkerd-crds` and
`linkerd-control-plane` charts. The former takes care of installing all the
required CRDs and the latter everything else. Of important note is that, as per
Helm best practice, we're no longer creating the linkerd namespace. Users
require to do that manually, or have the Helm tool do it explicitly. So the
install procedure would look something like this:

```bash
helm install linkerd-crds -n linkerd --create-namespace linkerd/linkerd-crds

helm install linkerd-control-plane -n linkerd \
  --set-file identityTrustAnchorsPEM=ca.crt \
  --set-file identity.issuer.tls.crtPEM=issuer.crt \
  --set-file identity.issuer.tls.keyPEM=issuer.key \
  linkerd/linkerd-control-plane
```

In order to upgrade, please delete your previously installed `linkerd2` chart
and install the new charts as explained above.

Although the charts for the main extensions (viz, multicluster, jaeger,
linkerd2-cni) were not deprecated, they also stopped creating their namespace
and users are required to uninstall and reinstall them anew, e.g:

```bash
helm install linkerd-viz -n linkerd-viz --create-namespace linkerd/linkerd-viz
```

* Added a new `--obfuscate` flag to `linkerd diagnostics proxy-metrics` to
  obfuscate potentially private information in the output (thanks
  @ahmedalhulaibi!)
* Fixed formatting of the recommended value for `--set clusterNetworks` in the
  `linkerd check` output when that parameter doesn't contain all the node
  podCIDRs (thanks @ElvinEfendi!)
* Skipped evicted pods in `linkerd viz check` and `linkerd jaeger check`, to
  avoid the checks fail unnecessarily
* Removed some no longer used environment variables from the proxy's manifest