diff --git a/charts/t8s-cluster/CHANGELOG.md b/charts/t8s-cluster/CHANGELOG.md
index d6e67a16b..7f62931fa 100644
--- a/charts/t8s-cluster/CHANGELOG.md
+++ b/charts/t8s-cluster/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.3.0](https://github.com/teutonet/teutonet-helm-charts/compare/t8s-cluster-3.2.0...t8s-cluster-v3.3.0) (2023-09-27)
+
+
+### Features
+
+* **t8s-cluster/management-cluster:** make field availabilityZone optional ([#592](https://github.com/teutonet/teutonet-helm-charts/issues/592)) ([f94fc7a](https://github.com/teutonet/teutonet-helm-charts/commit/f94fc7a88f367767c751a14f3f1f00b1ac4c4ff7))
+
 ## [3.2.0](https://github.com/teutonet/teutonet-helm-charts/compare/t8s-cluster-3.1.0...t8s-cluster-v3.2.0) (2023-09-26)
 
 
diff --git a/charts/t8s-cluster/Chart.yaml b/charts/t8s-cluster/Chart.yaml
index 78962902c..6d55a5edd 100644
--- a/charts/t8s-cluster/Chart.yaml
+++ b/charts/t8s-cluster/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v2
 name: t8s-cluster
 type: application
-version: 3.2.0
+version: 3.3.0
 icon: https://teuto.net/favicon.ico
 maintainers:
   - name: cwrau
diff --git a/charts/t8s-cluster/README.md b/charts/t8s-cluster/README.md
index ff1030a4c..420783a9a 100644
--- a/charts/t8s-cluster/README.md
+++ b/charts/t8s-cluster/README.md
@@ -1,7 +1,7 @@
 [modeline]: # ( vim: set ft=markdown: )
 # t8s-cluster
 
-![Version: 3.2.0](https://img.shields.io/badge/Version-3.2.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
+![Version: 3.3.0](https://img.shields.io/badge/Version-3.3.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
 
 t8s-operator cluster with necessary addons
 
@@ -512,7 +512,7 @@ Must be one of:
 | Property                                                                              | Pattern | Type            | Deprecated | Definition                                                                  | Title/Description |
 | ------------------------------------------------------------------------------------- | ------- | --------------- | ---------- | --------------------------------------------------------------------------- | ----------------- |
 | + [replicas](#workers_additionalProperties_replicas )                                 | No      | integer         | No         | -                                                                           | -                 |
-| + [availabilityZone](#workers_additionalProperties_availabilityZone )                 | No      | string          | No         | -                                                                           | -                 |
+| - [availabilityZone](#workers_additionalProperties_availabilityZone )                 | No      | string          | No         | -                                                                           | -                 |
 | + [flavor](#workers_additionalProperties_flavor )                                     | No      | string          | No         | -                                                                           | -                 |
 | - [additionalSecurityGroups](#workers_additionalProperties_additionalSecurityGroups ) | No      | array of string | No         | Same as [additionalSecurityGroups](#controlPlane_additionalSecurityGroups ) | -                 |
 | - [nodeDrainTimeout](#workers_additionalProperties_nodeDrainTimeout )                 | No      | string          | No         | Same as [nodeDrainTimeout](#controlPlane_nodeDrainTimeout )                 | -                 |
@@ -527,7 +527,7 @@ Must be one of:
 | ------------ | ------ |
 | **Minimum**  | ≥ 0 |
 
-#### <a name="workers_additionalProperties_availabilityZone"></a>6.1.2. ![Required](https://img.shields.io/badge/Required-blue) Property `t8s cluster configuration > workers > additionalProperties > availabilityZone`
+#### <a name="workers_additionalProperties_availabilityZone"></a>6.1.2. ![Optional](https://img.shields.io/badge/Optional-yellow) Property `t8s cluster configuration > workers > additionalProperties > availabilityZone`
 
 |          |          |
 | -------- | -------- |