diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85f2c54d557a483b80bc872cf6114cd0afa550dc..1fa02472f779ed5c84335038506e5d363088b1aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.6.4]
+
+- Fix error messages that were not shown, in particular when providing wrong
+  credentials when logging in. We redesigned the error handling, considering
+  that these messages may be translated later on.
+
 ## [0.6.3]
 
 - Add support for Hedgedoc.
diff --git a/README.md b/README.md
index f7b4959eb46d8e00c4ec1f33c2c0f731a1ac0687..a82d513479e95c3545fcb5f69db1c74256457588 100644
--- a/README.md
+++ b/README.md
@@ -141,3 +141,20 @@ Once your package is published, use it by
    `stable` by `unstable`; and
 2. changing the `spec.chart.spec.version` field of the `stackspin/dashboard`
    `HelmRelease` to your chart version (the one from this chart's `Chart.yaml`).
+
+## Release process
+
+To publish a new version of the helm chart:
+1. Increase the docker image tag in `deployment/helmchart/values.yaml` so it uses the new tag (to be
+   created in a later step of this release).
+2. Update the appVersion in `deployment/helmchart/Chart.yaml` to match that new tag version.
+3. Increase the chart version in `deployment/helmchart/Chart.yaml`.
+4. Update `CHANGELOG.md` and check that it includes relevant changes, including
+   ones added by renovatebot.
+5. Commit and push these changes to `main`.
+6. Create a new git tag for the new release and push it to gitlab as well. Note
+   that both the pipeline for the `main` branch and for the tag will use the
+   `nc` namespace, so you may not want to push the branch and tag right after
+   each other.
+
+The last step will trigger a CI run that will package and publish the helm chart.
diff --git a/deployment/helmchart/Chart.yaml b/deployment/helmchart/Chart.yaml
index f47e974e8f0c03f16e0fff03170a269f8e8d2c43..dccb13785f7073ef3813c77d5db05d5ac2432f79 100644
--- a/deployment/helmchart/Chart.yaml
+++ b/deployment/helmchart/Chart.yaml
@@ -1,7 +1,7 @@
 annotations:
   category: Dashboard
 apiVersion: v2
-appVersion: 0.6.3
+appVersion: 0.6.4
 dependencies:
   - name: common
     # https://artifacthub.io/packages/helm/bitnami/common
@@ -23,4 +23,4 @@ name: stackspin-dashboard
 sources:
   - https://open.greenhost.net/stackspin/dashboard/
   - https://open.greenhost.net/stackspin/dashboard-backend/
-version: 1.6.3
+version: 1.6.4
diff --git a/deployment/helmchart/values.yaml b/deployment/helmchart/values.yaml
index 3f0dce93f91925316ec55fae3de1f9bc98437b0d..1816d37f6a6d86fcd4adf6e9d6f0001fc23f123c 100644
--- a/deployment/helmchart/values.yaml
+++ b/deployment/helmchart/values.yaml
@@ -68,7 +68,7 @@ dashboard:
   image:
     registry: open.greenhost.net:4567
     repository: stackspin/dashboard/dashboard
-    tag: 0.6.3
+    tag: 0.6.4
     digest: ""
     ## Optionally specify an array of imagePullSecrets.
     ## Secrets must be manually created in the namespace.
@@ -236,7 +236,7 @@ backend:
   image:
     registry: open.greenhost.net:4567
     repository: stackspin/dashboard/dashboard-backend
-    tag: 0.6.3
+    tag: 0.6.4
     digest: ""
     ## Optionally specify an array of imagePullSecrets.
     ## Secrets must be manually created in the namespace.