diff --git a/CHANGELOG.md b/CHANGELOG.md
index b00d5c6e..52f5de25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,14 +1,23 @@
 ## Release (2025-XX-YY)
-- `cdn`: [v1.2.0](services/cdn/CHANGELOG.md#v120)
-  - **Feature:** Add `default_cache_duration` attribute to `Config`, `ConfigPatch` and `CreateDistributionPayload` model
-  - Add `originUrlRelated` to available options given in `sort_by` description
-- `opensearch`: [v0.3.0](services/opensearch/CHANGELOG.md#v030)
-  - **Breaking change:** Attribute `tls_protocols` of `InstanceParameters` model is now of type `List[StrictStr]` (previously `StrictStr`)
-- `stackitmarketplace`: [v1.4.0](services/stackitmarketplace/CHANGELOG.md#v140)
-  - **Feature:** Add support for offer types
-    - new model `OfferType`
-    - new attribute `CatalogProductDetail` for `CatalogProductDetail` model
-  - Attribute `is_product_listing` in `CatalogProductDetail` is now of type `Optional[StrictBool]` (previously `StrictBool`)
+- `cdn`:
+  - [v1.3.0](services/cdn/CHANGELOG.md#v130)
+    - **Breaking change:** Minimal python version is now Python 3.9
+  - [v1.2.0](services/cdn/CHANGELOG.md#v120)
+    - **Feature:** Add `default_cache_duration` attribute to `Config`, `ConfigPatch` and `CreateDistributionPayload` model
+    - Add `originUrlRelated` to available options given in `sort_by` description
+- `opensearch`:
+  - [v0.4.0](services/opensearch/CHANGELOG.md#v040)
+  - **Breaking change:** Minimal python version is now Python 3.9 
+  - [v0.3.0](services/opensearch/CHANGELOG.md#v030)
+    - **Breaking change:** Attribute `tls_protocols` of `InstanceParameters` model is now of type `List[StrictStr]` (previously `StrictStr`)
+- `stackitmarketplace`:
+  - [v1.5.0](services/stackitmarketplace/CHANGELOG.md#v150)
+    - **Breaking change:** Minimal python version is now Python 3.9
+  - [v1.4.0](services/stackitmarketplace/CHANGELOG.md#v140)
+    - **Feature:** Add support for offer types
+      - new model `OfferType`
+      - new attribute `CatalogProductDetail` for `CatalogProductDetail` model
+    - Attribute `is_product_listing` in `CatalogProductDetail` is now of type `Optional[StrictBool]` (previously `StrictBool`)
 - `iaas`: [v0.5.4](services/iaas/CHANGELOG.md#v054)
   - **Improvement:** Increase max length of `machine_type` and `volume_performance_class` fields from 63 to 127 characters in API methods
   - **Improvement:** Increase max length of `name` fields from 63 to 127 characters for various models:
@@ -20,6 +29,60 @@
     `UpdateBackupPayload`, `UpdateImagePayload`, `UpdateNicPayload`, `UpdateSecurityGroupPayload`
     `UpdateServerPayload`, `UpdateSnapshotPayload`, `UpdateVolumePayload`, `Volume`, `VolumePerformanceClass`
   - **Improvement:** Update regular expression pattern for name validation to allow more flexible naming conventions
+- `alb`: [v0.4.0](services/alb/CHANGELOG.md#v040)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `authorization`: [v0.3.0](services/authorization/CHANGELOG.md#v030)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `certificates`: [v1.1.0](services/certificates/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `dns`: [v0.4.0](services/dns/CHANGELOG.md#v040)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `git`: [v0.2.0](services/git/CHANGELOG.md#v020)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `iaas`: [v0.6.0](services/iaas/CHANGELOG.md#v060)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `kms`: [v0.1.0](services/kms/CHANGELOG.md#v010)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `lbapplication`: [v0.4.0](services/lbapplication/CHANGELOG.md#v040)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `loadbalancer`: [v0.5.0](services/loadbalancer/CHANGELOG.md#v050)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `logme`: [v0.4.0](services/logme/CHANGELOG.md#v040)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `mariadb`: [v0.3.0](services/mariadb/CHANGELOG.md#v030)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `modelserving`: [v0.2.0](services/modelserving/CHANGELOG.md#v020)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `mongodbflex`: [v1.1.0](services/mongodbflex/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `objectstorage`: [v1.1.0](services/objectstorage/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `observability`: [v0.6.0](services/observability/CHANGELOG.md#v060)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `postgresflex`: [v1.1.0](services/postgresflex/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `rabbitmq`: [v0.3.0](services/rabbitmq/CHANGELOG.md#v030)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `redis`: [v0.3.0](services/redis/CHANGELOG.md#v030)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `resourcemanager`: [v0.6.0](services/resourcemanager/CHANGELOG.md#v060)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `runcommand`: [v1.1.0](services/runcommand/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `secretsmanager`: [v0.3.0](services/secretsmanager/CHANGELOG.md#v030)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `serverbackup`: [v1.1.0](services/serverbackup/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `serverupdate`: [v1.1.0](services/serverupdate/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `serviceaccount`: [v0.3.0](services/serviceaccount/CHANGELOG.md#v030)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `serviceenablement`: [v1.1.0](services/serviceenablement/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `ske`: [v0.6.0](services/ske/CHANGELOG.md#v060)
+  - **Breaking change:** Minimal python version is now Python 3.9
+- `sqlserverflex`: [v1.1.0](services/sqlserverflex/CHANGELOG.md#v110)
+  - **Breaking change:** Minimal python version is now Python 3.9
 
 ## Release (2025-06-16)
 - `core`: [v0.2.0](core/CHANGELOG.md#v020-2025-06-12)
diff --git a/services/alb/CHANGELOG.md b/services/alb/CHANGELOG.md
index 1a5696c9..455448cc 100644
--- a/services/alb/CHANGELOG.md
+++ b/services/alb/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.4.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.3.0 (2025-06-12)
 - **Feature:** Add new fields `disable_target_security_group_assignment` and `target_security_group` in `LoadBalancer`, `CreateLoadBalancerPayload` and `UpdateLoadBalancerPayload` Models
 
diff --git a/services/alb/pyproject.toml b/services/alb/pyproject.toml
index 7f45c13e..7db16977 100644
--- a/services/alb/pyproject.toml
+++ b/services/alb/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-alb"
 
 [tool.poetry]
 name = "stackit-alb"
-version = "v0.3.0"
+version = "v0.4.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/authorization/CHANGELOG.md b/services/authorization/CHANGELOG.md
index 9490e02a..e32b2958 100644
--- a/services/authorization/CHANGELOG.md
+++ b/services/authorization/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.2.4 (2025-05-13)
 - **Bugfix:** Updated regex validator
 
diff --git a/services/authorization/pyproject.toml b/services/authorization/pyproject.toml
index d879e30c..71191f99 100644
--- a/services/authorization/pyproject.toml
+++ b/services/authorization/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-authorization"
 
 [tool.poetry]
 name = "stackit-authorization"
-version = "v0.2.4"
+version = "v0.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/cdn/CHANGELOG.md b/services/cdn/CHANGELOG.md
index 70d3bc15..9b300668 100644
--- a/services/cdn/CHANGELOG.md
+++ b/services/cdn/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.2.0
 - **Feature:** Add `default_cache_duration` attribute to `Config`, `ConfigPatch` and `CreateDistributionPayload` model
 - Add `originUrlRelated` to available options given in `sort_by` description
diff --git a/services/cdn/pyproject.toml b/services/cdn/pyproject.toml
index 7e56e942..f41fdfa6 100644
--- a/services/cdn/pyproject.toml
+++ b/services/cdn/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-cdn"
 
 [tool.poetry]
 name = "stackit-cdn"
-version = "v1.2.0"
+version = "v1.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/certificates/CHANGELOG.md b/services/certificates/CHANGELOG.md
index 4e4b0398..29c395f7 100644
--- a/services/certificates/CHANGELOG.md
+++ b/services/certificates/CHANGELOG.md
@@ -1,3 +1,6 @@
+# v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/certificates/pyproject.toml b/services/certificates/pyproject.toml
index f108447f..71ae3774 100644
--- a/services/certificates/pyproject.toml
+++ b/services/certificates/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-certificates"
 
 [tool.poetry]
 name = "stackit-certificates"
-version = "v1.0.1"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/dns/CHANGELOG.md b/services/dns/CHANGELOG.md
index 4d501096..f2f226ca 100644
--- a/services/dns/CHANGELOG.md
+++ b/services/dns/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.4.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.3.2 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/dns/pyproject.toml b/services/dns/pyproject.toml
index ab6b9328..bdd0a4be 100644
--- a/services/dns/pyproject.toml
+++ b/services/dns/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-dns"
 
 [tool.poetry]
 name = "stackit-dns"
-version = "v0.3.2"
+version = "v0.4.0"
 authors = ["STACKIT Developer Tools <developer-tools@stackit.cloud>"]
 description = "STACKIT DNS API"
 readme = "README.md"
@@ -18,7 +18,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/git/CHANGELOG.md b/services/git/CHANGELOG.md
index 6abfc047..929b840f 100644
--- a/services/git/CHANGELOG.md
+++ b/services/git/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.2.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.1.2 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/git/pyproject.toml b/services/git/pyproject.toml
index 74406af5..d1bf895b 100644
--- a/services/git/pyproject.toml
+++ b/services/git/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-git"
 
 [tool.poetry]
 name = "stackit-git"
-version = "v0.1.2"
+version = "v0.2.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/iaas/CHANGELOG.md b/services/iaas/CHANGELOG.md
index 1ddad69b..32b84d21 100644
--- a/services/iaas/CHANGELOG.md
+++ b/services/iaas/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.6.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.5.4
 - **Improvement:** Increase max length of `machine_type` and `volume_performance_class` fields from 63 to 127 characters in API methods
 - **Improvement:** Increase max length of `name` fields from 63 to 127 characters for various models:
diff --git a/services/iaas/pyproject.toml b/services/iaas/pyproject.toml
index 52ade904..4b6ac52c 100644
--- a/services/iaas/pyproject.toml
+++ b/services/iaas/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-iaas"
 
 [tool.poetry]
 name = "stackit-iaas"
-version = "v0.5.4"
+version = "v0.6.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/iaasalpha/pyproject.toml b/services/iaasalpha/pyproject.toml
index 0a63b878..3ff3229f 100644
--- a/services/iaasalpha/pyproject.toml
+++ b/services/iaasalpha/pyproject.toml
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/kms/CHANGELOG.md b/services/kms/CHANGELOG.md
index 3f2520cb..76aef7b5 100644
--- a/services/kms/CHANGELOG.md
+++ b/services/kms/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.0.4 (2025-05-19)
 - **Feature:** Added new method `delete_wrapping_key`
 
diff --git a/services/kms/pyproject.toml b/services/kms/pyproject.toml
index 7fbf1ae0..1f783307 100644
--- a/services/kms/pyproject.toml
+++ b/services/kms/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-kms"
 
 [tool.poetry]
 name = "stackit-kms"
-version = "v0.0.4"
+version = "v0.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/lbapplication/CHANGELOG.md b/services/lbapplication/CHANGELOG.md
index bb86676b..66475c2e 100644
--- a/services/lbapplication/CHANGELOG.md
+++ b/services/lbapplication/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.4.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.3.3 (2025-06-02)
 - **Deprecated:** Changed deprecation message of `GetQuotaResponse` and `RESTResponseType`
 
diff --git a/services/lbapplication/pyproject.toml b/services/lbapplication/pyproject.toml
index 8e0140b1..5887b98d 100644
--- a/services/lbapplication/pyproject.toml
+++ b/services/lbapplication/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-lbapplication"
 
 [tool.poetry]
 name = "stackit-lbapplication"
-version = "v0.3.3"
+version = "v0.4.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/loadbalancer/CHANGELOG.md b/services/loadbalancer/CHANGELOG.md
index 99f41374..13af9080 100644
--- a/services/loadbalancer/CHANGELOG.md
+++ b/services/loadbalancer/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.5.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.4.0 (2025-06-12)
 - **Feature:** Add new field `disable_target_security_group_assignment` in `LoadBalancer`, `CreateLoadBalancerPayload` and `UpdateLoadBalancerPayload` Models
 
diff --git a/services/loadbalancer/pyproject.toml b/services/loadbalancer/pyproject.toml
index 58cbc4ab..c0a1b681 100644
--- a/services/loadbalancer/pyproject.toml
+++ b/services/loadbalancer/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-loadbalancer"
 
 [tool.poetry]
 name = "stackit-loadbalancer"
-version = "v0.4.0"
+version = "v0.5.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/logme/CHANGELOG.md b/services/logme/CHANGELOG.md
index 6844d512..ef3b0800 100644
--- a/services/logme/CHANGELOG.md
+++ b/services/logme/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.4.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.3.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/logme/pyproject.toml b/services/logme/pyproject.toml
index 836a98c9..93646ea6 100644
--- a/services/logme/pyproject.toml
+++ b/services/logme/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-logme"
 
 [tool.poetry]
 name = "stackit-logme"
-version = "v0.3.1"
+version = "v0.4.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/mariadb/CHANGELOG.md b/services/mariadb/CHANGELOG.md
index 53742bfd..962faf9d 100644
--- a/services/mariadb/CHANGELOG.md
+++ b/services/mariadb/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.2.2 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/mariadb/pyproject.toml b/services/mariadb/pyproject.toml
index e8cc4561..42f6caa7 100644
--- a/services/mariadb/pyproject.toml
+++ b/services/mariadb/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-mariadb"
 
 [tool.poetry]
 name = "stackit-mariadb"
-version = "v0.2.2"
+version = "v0.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/modelserving/CHANGELOG.md b/services/modelserving/CHANGELOG.md
index 8b8974bc..2e3e7091 100644
--- a/services/modelserving/CHANGELOG.md
+++ b/services/modelserving/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.2.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.1.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/modelserving/LICENSE.md b/services/modelserving/LICENSE.md
new file mode 100644
index 00000000..7e2f0648
--- /dev/null
+++ b/services/modelserving/LICENSE.md
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1.  Definitions.
+
+    "License" shall mean the terms and conditions for use, reproduction,
+    and distribution as defined by Sections 1 through 9 of this document.
+
+    "Licensor" shall mean the copyright owner or entity authorized by
+    the copyright owner that is granting the License.
+
+    "Legal Entity" shall mean the union of the acting entity and all
+    other entities that control, are controlled by, or are under common
+    control with that entity. For the purposes of this definition,
+    "control" means (i) the power, direct or indirect, to cause the
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+    editorial revisions, annotations, elaborations, or other modifications
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+    of this License, Derivative Works shall not include works that remain
+    separable from, or merely link (or bind by name) to the interfaces of,
+    the Work and Derivative Works thereof.
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+    "Contribution" shall mean any work of authorship, including
+    the original version of the Work and any modifications or additions
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+2.  Grant of Copyright License. Subject to the terms and conditions of
+    this License, each Contributor hereby grants to You a perpetual,
+    worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+    copyright license to reproduce, prepare Derivative Works of,
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+3.  Grant of Patent License. Subject to the terms and conditions of
+    this License, each Contributor hereby grants to You a perpetual,
+    worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+    (except as stated in this section) patent license to make, have made,
+    use, offer to sell, sell, import, and otherwise transfer the Work,
+    where such license applies only to those patent claims licensable
+    by such Contributor that are necessarily infringed by their
+    Contribution(s) alone or by combination of their Contribution(s)
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+    institute patent litigation against any entity (including a
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+    or a Contribution incorporated within the Work constitutes direct
+    or contributory patent infringement, then any patent licenses
+    granted to You under this License for that Work shall terminate
+    as of the date such litigation is filed.
+
+4.  Redistribution. You may reproduce and distribute copies of the
+    Work or Derivative Works thereof in any medium, with or without
+    modifications, and in Source or Object form, provided that You
+    meet the following conditions:
+
+    (a) You must give any other recipients of the Work or
+    Derivative Works a copy of this License; and
+
+    (b) You must cause any modified files to carry prominent notices
+    stating that You changed the files; and
+
+    (c) You must retain, in the Source form of any Derivative Works
+    that You distribute, all copyright, patent, trademark, and
+    attribution notices from the Source form of the Work,
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+    the Derivative Works; and
+
+    (d) If the Work includes a "NOTICE" text file as part of its
+    distribution, then any Derivative Works that You distribute must
+    include a readable copy of the attribution notices contained
+    within such NOTICE file, excluding those notices that do not
+    pertain to any part of the Derivative Works, in at least one
+    of the following places: within a NOTICE text file distributed
+    as part of the Derivative Works; within the Source form or
+    documentation, if provided along with the Derivative Works; or,
+    within a display generated by the Derivative Works, if and
+    wherever such third-party notices normally appear. The contents
+    of the NOTICE file are for informational purposes only and
+    do not modify the License. You may add Your own attribution
+    notices within Derivative Works that You distribute, alongside
+    or as an addendum to the NOTICE text from the Work, provided
+    that such additional attribution notices cannot be construed
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+
+    You may add Your own copyright statement to Your modifications and
+    may provide additional or different license terms and conditions
+    for use, reproduction, or distribution of Your modifications, or
+    for any such Derivative Works as a whole, provided Your use,
+    reproduction, and distribution of the Work otherwise complies with
+    the conditions stated in this License.
+
+5.  Submission of Contributions. Unless You explicitly state otherwise,
+    any Contribution intentionally submitted for inclusion in the Work
+    by You to the Licensor shall be under the terms and conditions of
+    this License, without any additional terms or conditions.
+    Notwithstanding the above, nothing herein shall supersede or modify
+    the terms of any separate license agreement you may have executed
+    with Licensor regarding such Contributions.
+
+6.  Trademarks. This License does not grant permission to use the trade
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+
+7.  Disclaimer of Warranty. Unless required by applicable law or
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+    risks associated with Your exercise of permissions under this License.
+
+8.  Limitation of Liability. In no event and under no legal theory,
+    whether in tort (including negligence), contract, or otherwise,
+    unless required by applicable law (such as deliberate and grossly
+    negligent acts) or agreed to in writing, shall any Contributor be
+    liable to You for damages, including any direct, indirect, special,
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+    other commercial damages or losses), even if such Contributor
+    has been advised of the possibility of such damages.
+
+9.  Accepting Warranty or Additional Liability. While redistributing
+    the Work or Derivative Works thereof, You may choose to offer,
+    and charge a fee for, acceptance of support, warranty, indemnity,
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+    on Your own behalf and on Your sole responsibility, not on behalf
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+    defend, and hold each Contributor harmless for any liability
+    incurred by, or claims asserted against, such Contributor by reason
+    of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+Copyright 2025 Schwarz IT KG
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/services/modelserving/NOTICE.txt b/services/modelserving/NOTICE.txt
new file mode 100644
index 00000000..37686b49
--- /dev/null
+++ b/services/modelserving/NOTICE.txt
@@ -0,0 +1,2 @@
+STACKIT Model Serving SDK for Python
+Copyright 2025 Schwarz IT KG
\ No newline at end of file
diff --git a/services/modelserving/pyproject.toml b/services/modelserving/pyproject.toml
index f8617917..fdfe1970 100644
--- a/services/modelserving/pyproject.toml
+++ b/services/modelserving/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-modelserving"
 
 [tool.poetry]
 name = "stackit-modelserving"
-version = "v0.1.1"
+version = "v0.2.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/mongodbflex/CHANGELOG.md b/services/mongodbflex/CHANGELOG.md
index f4d78582..fec273df 100644
--- a/services/mongodbflex/CHANGELOG.md
+++ b/services/mongodbflex/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.1 (2025-05-09)
     - **Feature:** Update user-agent header
 
diff --git a/services/mongodbflex/pyproject.toml b/services/mongodbflex/pyproject.toml
index 45c88a44..91b8da24 100644
--- a/services/mongodbflex/pyproject.toml
+++ b/services/mongodbflex/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-mongodbflex"
 
 [tool.poetry]
 name = "stackit-mongodbflex"
-version = "v1.0.1"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/objectstorage/CHANGELOG.md b/services/objectstorage/CHANGELOG.md
index 33973fc2..03be3339 100644
--- a/services/objectstorage/CHANGELOG.md
+++ b/services/objectstorage/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.3 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/objectstorage/pyproject.toml b/services/objectstorage/pyproject.toml
index 8c06194c..fa03a5ca 100644
--- a/services/objectstorage/pyproject.toml
+++ b/services/objectstorage/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-objectstorage"
 
 [tool.poetry]
 name = "stackit-objectstorage"
-version = "v1.0.3"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/observability/CHANGELOG.md b/services/observability/CHANGELOG.md
index 170f9458..1da7ef39 100644
--- a/services/observability/CHANGELOG.md
+++ b/services/observability/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.6.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.5.0 (2025-05-27)
 - **Feature:** Add support for `matchers` to route
 - **Feature:** Add support for `priority levels`, `sendResolved`, `continue` to alert config models
diff --git a/services/observability/pyproject.toml b/services/observability/pyproject.toml
index 81dda919..87772250 100644
--- a/services/observability/pyproject.toml
+++ b/services/observability/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-observability"
 
 [tool.poetry]
 name = "stackit-observability"
-version = "v0.5.0"
+version = "v0.6.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/opensearch/CHANGELOG.md b/services/opensearch/CHANGELOG.md
index 84856efa..059542c9 100644
--- a/services/opensearch/CHANGELOG.md
+++ b/services/opensearch/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.4.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.3.0
 - **Breaking change:** Attribute `tls_protocols` of `InstanceParameters` model is now of type `List[StrictStr]` (previously `StrictStr`)
 
diff --git a/services/opensearch/pyproject.toml b/services/opensearch/pyproject.toml
index a716e022..32462a79 100644
--- a/services/opensearch/pyproject.toml
+++ b/services/opensearch/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-opensearch"
 
 [tool.poetry]
 name = "stackit-opensearch"
-version = "v0.3.0"
+version = "v0.4.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/postgresflex/CHANGELOG.md b/services/postgresflex/CHANGELOG.md
index 0ede413d..7833f47d 100644
--- a/services/postgresflex/CHANGELOG.md
+++ b/services/postgresflex/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/postgresflex/pyproject.toml b/services/postgresflex/pyproject.toml
index db476478..ee22408d 100644
--- a/services/postgresflex/pyproject.toml
+++ b/services/postgresflex/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-postgresflex"
 
 [tool.poetry]
 name = "stackit-postgresflex"
-version = "v1.0.1"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/rabbitmq/CHANGELOG.md b/services/rabbitmq/CHANGELOG.md
index 528cf9e2..e1e6862c 100644
--- a/services/rabbitmq/CHANGELOG.md
+++ b/services/rabbitmq/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.2.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/rabbitmq/pyproject.toml b/services/rabbitmq/pyproject.toml
index 6b7f8fc5..19a9bfaf 100644
--- a/services/rabbitmq/pyproject.toml
+++ b/services/rabbitmq/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-rabbitmq"
 
 [tool.poetry]
 name = "stackit-rabbitmq"
-version = "v0.2.1"
+version = "v0.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/redis/CHANGELOG.md b/services/redis/CHANGELOG.md
index c90b2ad0..ab68ca63 100644
--- a/services/redis/CHANGELOG.md
+++ b/services/redis/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.2.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/redis/pyproject.toml b/services/redis/pyproject.toml
index b8ee6008..c9ffce3f 100644
--- a/services/redis/pyproject.toml
+++ b/services/redis/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-redis"
 
 [tool.poetry]
 name = "stackit-redis"
-version = "v0.2.1"
+version = "v0.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/resourcemanager/CHANGELOG.md b/services/resourcemanager/CHANGELOG.md
index e8427a2d..fac304a3 100644
--- a/services/resourcemanager/CHANGELOG.md
+++ b/services/resourcemanager/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.6.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.5.0 (2025-06-04)
 - **Feature:** Delete Organization labels using the new method `DeleteOrganizationLabels`
 - **Feature:** Delete Project labels using the new method `DeleteProjectLabels`
diff --git a/services/resourcemanager/pyproject.toml b/services/resourcemanager/pyproject.toml
index a8f7246d..d9d1f54d 100644
--- a/services/resourcemanager/pyproject.toml
+++ b/services/resourcemanager/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-resourcemanager"
 
 [tool.poetry]
 name = "stackit-resourcemanager"
-version = "v0.5.0"
+version = "v0.6.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/runcommand/CHANGELOG.md b/services/runcommand/CHANGELOG.md
index ae1c37b3..1c7fdd72 100644
--- a/services/runcommand/CHANGELOG.md
+++ b/services/runcommand/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/runcommand/pyproject.toml b/services/runcommand/pyproject.toml
index 838e0db7..0efa2d66 100644
--- a/services/runcommand/pyproject.toml
+++ b/services/runcommand/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-runcommand"
 
 [tool.poetry]
 name = "stackit-runcommand"
-version = "v1.0.1"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/secretsmanager/CHANGELOG.md b/services/secretsmanager/CHANGELOG.md
index 90bdd0ae..e6973809 100644
--- a/services/secretsmanager/CHANGELOG.md
+++ b/services/secretsmanager/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.2.2 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/secretsmanager/pyproject.toml b/services/secretsmanager/pyproject.toml
index 19f56f01..93b9c544 100644
--- a/services/secretsmanager/pyproject.toml
+++ b/services/secretsmanager/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-secretsmanager"
 
 [tool.poetry]
 name = "stackit-secretsmanager"
-version = "v0.2.2"
+version = "v0.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/serverbackup/CHANGELOG.md b/services/serverbackup/CHANGELOG.md
index 9752a0c1..9d512fe3 100644
--- a/services/serverbackup/CHANGELOG.md
+++ b/services/serverbackup/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/serverbackup/pyproject.toml b/services/serverbackup/pyproject.toml
index 3b283535..e204eb6c 100644
--- a/services/serverbackup/pyproject.toml
+++ b/services/serverbackup/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-serverbackup"
 
 [tool.poetry]
 name = "stackit-serverbackup"
-version = "v1.0.1"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/serverupdate/CHANGELOG.md b/services/serverupdate/CHANGELOG.md
index 8969ac8a..3af5f982 100644
--- a/services/serverupdate/CHANGELOG.md
+++ b/services/serverupdate/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.2 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/serverupdate/pyproject.toml b/services/serverupdate/pyproject.toml
index f5299c24..4eab0c31 100644
--- a/services/serverupdate/pyproject.toml
+++ b/services/serverupdate/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-serverupdate"
 
 [tool.poetry]
 name = "stackit-serverupdate"
-version = "v1.0.2"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/serviceaccount/CHANGELOG.md b/services/serviceaccount/CHANGELOG.md
index 08ee0dab..07a57305 100644
--- a/services/serviceaccount/CHANGELOG.md
+++ b/services/serviceaccount/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.3.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.2.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/serviceaccount/pyproject.toml b/services/serviceaccount/pyproject.toml
index b8c14ccf..1f7999e8 100644
--- a/services/serviceaccount/pyproject.toml
+++ b/services/serviceaccount/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-serviceaccount"
 
 [tool.poetry]
 name = "stackit-serviceaccount"
-version = "v0.2.1"
+version = "v0.3.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/serviceenablement/CHANGELOG.md b/services/serviceenablement/CHANGELOG.md
index b69b8d02..2cd6466d 100644
--- a/services/serviceenablement/CHANGELOG.md
+++ b/services/serviceenablement/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/serviceenablement/pyproject.toml b/services/serviceenablement/pyproject.toml
index eb286e78..88972e87 100644
--- a/services/serviceenablement/pyproject.toml
+++ b/services/serviceenablement/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-serviceenablement"
 
 [tool.poetry]
 name = "stackit-serviceenablement"
-version = "v1.0.1"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/ske/CHANGELOG.md b/services/ske/CHANGELOG.md
index 93c66e27..4947aab5 100644
--- a/services/ske/CHANGELOG.md
+++ b/services/ske/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.6.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v0.5.0 (2025-06-10)
 - **Feature:** Add new field `pod_address_ranges` to `ClusterStatus`
 
diff --git a/services/ske/pyproject.toml b/services/ske/pyproject.toml
index f1777183..8ab53457 100644
--- a/services/ske/pyproject.toml
+++ b/services/ske/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-ske"
 
 [tool.poetry]
 name = "stackit-ske"
-version = "v0.5.0"
+version = "v0.6.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/sqlserverflex/CHANGELOG.md b/services/sqlserverflex/CHANGELOG.md
index f029a0e6..627e617a 100644
--- a/services/sqlserverflex/CHANGELOG.md
+++ b/services/sqlserverflex/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v1.1.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
 ## v1.0.2 (2025-05-14)
 - **Feature:** Add new method `list_metrics`
 
diff --git a/services/sqlserverflex/pyproject.toml b/services/sqlserverflex/pyproject.toml
index e9cf204f..b7974266 100644
--- a/services/sqlserverflex/pyproject.toml
+++ b/services/sqlserverflex/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-sqlserverflex"
 
 [tool.poetry]
 name = "stackit-sqlserverflex"
-version = "v1.0.2"
+version = "v1.1.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -21,7 +21,7 @@ packages = [
 
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"
diff --git a/services/stackitmarketplace/CHANGELOG.md b/services/stackitmarketplace/CHANGELOG.md
index 89a61c55..d7b051e1 100644
--- a/services/stackitmarketplace/CHANGELOG.md
+++ b/services/stackitmarketplace/CHANGELOG.md
@@ -1,4 +1,7 @@
-## v1.4.0 
+## v1.5.0
+- **Breaking change:** Minimal python version is now Python 3.9
+
+## v1.4.0
 - **Feature:** Add support for offer types
     - new model `OfferType`
     - new attribute `CatalogProductDetail` for `CatalogProductDetail` model
diff --git a/services/stackitmarketplace/pyproject.toml b/services/stackitmarketplace/pyproject.toml
index 83f282e7..2db4f98e 100644
--- a/services/stackitmarketplace/pyproject.toml
+++ b/services/stackitmarketplace/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-stackitmarketplace"
 
 [tool.poetry]
 name = "stackit-stackitmarketplace"
-version = "v1.4.0"
+version = "v1.5.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0"
+python = "^3.9"
 stackit-core = ">=0.0.1a"
 requests = ">=2.32.3"
 pydantic = ">=2.9.2"