diff --git a/services/iaas/oas_commit b/services/iaas/oas_commit
index 39bada35c..a70f65d1f 100644
--- a/services/iaas/oas_commit
+++ b/services/iaas/oas_commit
@@ -1 +1 @@
-a35d8f28738a45005b098b66b6debd08a67ab018
+efae0a126dee165f0b9c67f12dc73b658af6306c
diff --git a/services/iaas/src/stackit/iaas/__init__.py b/services/iaas/src/stackit/iaas/__init__.py
index 70b8c77b2..3e103b149 100644
--- a/services/iaas/src/stackit/iaas/__init__.py
+++ b/services/iaas/src/stackit/iaas/__init__.py
@@ -142,6 +142,7 @@
     "ServerMaintenance",
     "ServerNetwork",
     "ServerNetworking",
+    "ServerVTPM",
     "ServiceAccountMailListResponse",
     "SetImageSharePayload",
     "Snapshot",
@@ -431,6 +432,7 @@
 )
 from stackit.iaas.models.server_network import ServerNetwork as ServerNetwork
 from stackit.iaas.models.server_networking import ServerNetworking as ServerNetworking
+from stackit.iaas.models.server_vtpm import ServerVTPM as ServerVTPM
 from stackit.iaas.models.service_account_mail_list_response import (
     ServiceAccountMailListResponse as ServiceAccountMailListResponse,
 )
diff --git a/services/iaas/src/stackit/iaas/api/default_api.py b/services/iaas/src/stackit/iaas/api/default_api.py
index 531d19040..63780c230 100644
--- a/services/iaas/src/stackit/iaas/api/default_api.py
+++ b/services/iaas/src/stackit/iaas/api/default_api.py
@@ -1971,7 +1971,7 @@ def add_service_account_to_server(
     ) -> ServiceAccountMailListResponse:
         """Attach service account to a server.
 
-        Attach an additional service account to the server.
+        Attach a service account to the server.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -2051,7 +2051,7 @@ def add_service_account_to_server_with_http_info(
     ) -> ApiResponse[ServiceAccountMailListResponse]:
         """Attach service account to a server.
 
-        Attach an additional service account to the server.
+        Attach a service account to the server.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -2131,7 +2131,7 @@ def add_service_account_to_server_without_preload_content(
     ) -> RESTResponseType:
         """Attach service account to a server.
 
-        Attach an additional service account to the server.
+        Attach a service account to the server.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -2912,6 +2912,7 @@ def create_backup(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -2985,6 +2986,7 @@ def create_backup_with_http_info(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -3058,6 +3060,7 @@ def create_backup_without_preload_content(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -3145,7 +3148,7 @@ def create_image(
     ) -> ImageCreateResponse:
         """Create new Image.
 
-        Create a new Image in a project. This call, if successful, returns a pre-signed URL for the customer to upload the image.
+        Create a new Image in a project in queued state. Image data must be imported separately. This call returns a pre-signed URL to upload small images.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -3191,6 +3194,7 @@ def create_image(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "413": "Error",
             "429": "Error",
             "500": "Error",
         }
@@ -3219,7 +3223,7 @@ def create_image_with_http_info(
     ) -> ApiResponse[ImageCreateResponse]:
         """Create new Image.
 
-        Create a new Image in a project. This call, if successful, returns a pre-signed URL for the customer to upload the image.
+        Create a new Image in a project in queued state. Image data must be imported separately. This call returns a pre-signed URL to upload small images.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -3265,6 +3269,7 @@ def create_image_with_http_info(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "413": "Error",
             "429": "Error",
             "500": "Error",
         }
@@ -3293,7 +3298,7 @@ def create_image_without_preload_content(
     ) -> RESTResponseType:
         """Create new Image.
 
-        Create a new Image in a project. This call, if successful, returns a pre-signed URL for the customer to upload the image.
+        Create a new Image in a project in queued state. Image data must be imported separately. This call returns a pre-signed URL to upload small images.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -3339,6 +3344,7 @@ def create_image_without_preload_content(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "413": "Error",
             "429": "Error",
             "500": "Error",
         }
@@ -6923,6 +6929,8 @@ def create_snapshot(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "409": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -6996,6 +7004,8 @@ def create_snapshot_with_http_info(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "409": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -7069,6 +7079,8 @@ def create_snapshot_without_preload_content(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "409": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -7202,6 +7214,8 @@ def create_volume(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "409": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -7275,6 +7289,8 @@ def create_volume_with_http_info(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "409": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -7348,6 +7364,8 @@ def create_volume_without_preload_content(
             "401": "Error",
             "403": "Error",
             "404": "Error",
+            "409": "Error",
+            "413": "Error",
             "500": "Error",
         }
         response_data = self.api_client.call_api(*_param, _request_timeout=_request_timeout)
@@ -27738,9 +27756,9 @@ def list_server_service_accounts(
         _headers: Optional[Dict[StrictStr, Any]] = None,
         _host_index: Annotated[StrictInt, Field(ge=0, le=0)] = 0,
     ) -> ServiceAccountMailListResponse:
-        """List all service accounts of the Server.
+        """List the service account of the Server.
 
-        Get the list of the service accounts of the server.
+        Get service account of the server in a list.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -27811,9 +27829,9 @@ def list_server_service_accounts_with_http_info(
         _headers: Optional[Dict[StrictStr, Any]] = None,
         _host_index: Annotated[StrictInt, Field(ge=0, le=0)] = 0,
     ) -> ApiResponse[ServiceAccountMailListResponse]:
-        """List all service accounts of the Server.
+        """List the service account of the Server.
 
-        Get the list of the service accounts of the server.
+        Get service account of the server in a list.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -27884,9 +27902,9 @@ def list_server_service_accounts_without_preload_content(
         _headers: Optional[Dict[StrictStr, Any]] = None,
         _host_index: Annotated[StrictInt, Field(ge=0, le=0)] = 0,
     ) -> RESTResponseType:
-        """List all service accounts of the Server.
+        """List the service account of the Server.
 
-        Get the list of the service accounts of the server.
+        Get service account of the server in a list.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -31149,7 +31167,7 @@ def remove_service_account_from_server(
     ) -> ServiceAccountMailListResponse:
         """Detach a service account from a server.
 
-        Detach an additional service account from the server.
+        Detach a service account from the server.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -31229,7 +31247,7 @@ def remove_service_account_from_server_with_http_info(
     ) -> ApiResponse[ServiceAccountMailListResponse]:
         """Detach a service account from a server.
 
-        Detach an additional service account from the server.
+        Detach a service account from the server.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
@@ -31309,7 +31327,7 @@ def remove_service_account_from_server_without_preload_content(
     ) -> RESTResponseType:
         """Detach a service account from a server.
 
-        Detach an additional service account from the server.
+        Detach a service account from the server.
 
         :param project_id: The identifier (ID) of a STACKIT Project. (required)
         :type project_id: UUID
diff --git a/services/iaas/src/stackit/iaas/exceptions.py b/services/iaas/src/stackit/iaas/exceptions.py
index 9992f35fc..236939e4b 100644
--- a/services/iaas/src/stackit/iaas/exceptions.py
+++ b/services/iaas/src/stackit/iaas/exceptions.py
@@ -46,7 +46,7 @@ def __init__(self, msg, path_to_item=None, valid_classes=None, key_type=None) ->
         full_msg = msg
         if path_to_item:
             full_msg = "{0} at {1}".format(msg, render_path(path_to_item))
-        super(ApiTypeError, self).__init__(full_msg)
+        super(ApiTypeError, self).__init__(full_msg, path_to_item, valid_classes, key_type)
 
 
 class ApiValueError(OpenApiException, ValueError):
@@ -64,7 +64,7 @@ def __init__(self, msg, path_to_item=None) -> None:
         full_msg = msg
         if path_to_item:
             full_msg = "{0} at {1}".format(msg, render_path(path_to_item))
-        super(ApiValueError, self).__init__(full_msg)
+        super(ApiValueError, self).__init__(full_msg, path_to_item)
 
 
 class ApiAttributeError(OpenApiException, AttributeError):
@@ -83,7 +83,7 @@ def __init__(self, msg, path_to_item=None) -> None:
         full_msg = msg
         if path_to_item:
             full_msg = "{0} at {1}".format(msg, render_path(path_to_item))
-        super(ApiAttributeError, self).__init__(full_msg)
+        super(ApiAttributeError, self).__init__(full_msg, path_to_item)
 
 
 class ApiKeyError(OpenApiException, KeyError):
@@ -100,7 +100,7 @@ def __init__(self, msg, path_to_item=None) -> None:
         full_msg = msg
         if path_to_item:
             full_msg = "{0} at {1}".format(msg, render_path(path_to_item))
-        super(ApiKeyError, self).__init__(full_msg)
+        super(ApiKeyError, self).__init__(full_msg, path_to_item)
 
 
 class ApiException(OpenApiException):
diff --git a/services/iaas/src/stackit/iaas/models/__init__.py b/services/iaas/src/stackit/iaas/models/__init__.py
index 53b2c8d46..cd38c59d1 100644
--- a/services/iaas/src/stackit/iaas/models/__init__.py
+++ b/services/iaas/src/stackit/iaas/models/__init__.py
@@ -163,6 +163,7 @@
 from stackit.iaas.models.server_maintenance import ServerMaintenance
 from stackit.iaas.models.server_network import ServerNetwork
 from stackit.iaas.models.server_networking import ServerNetworking
+from stackit.iaas.models.server_vtpm import ServerVTPM
 from stackit.iaas.models.service_account_mail_list_response import (
     ServiceAccountMailListResponse,
 )
diff --git a/services/iaas/src/stackit/iaas/models/add_routing_table_to_area_payload.py b/services/iaas/src/stackit/iaas/models/add_routing_table_to_area_payload.py
index 984e6f12e..f5ed01e7c 100644
--- a/services/iaas/src/stackit/iaas/models/add_routing_table_to_area_payload.py
+++ b/services/iaas/src/stackit/iaas/models/add_routing_table_to_area_payload.py
@@ -28,7 +28,7 @@
 
 class AddRoutingTableToAreaPayload(BaseModel):
     """
-    An object representing a routing table.
+    An object representing a routing table. Filterable Fields: `dynamicRoutes`, `systemRoutes`.
     """  # noqa: E501
 
     created_at: Optional[datetime] = Field(
diff --git a/services/iaas/src/stackit/iaas/models/create_network_area_range_payload.py b/services/iaas/src/stackit/iaas/models/create_network_area_range_payload.py
index 08a4ecc4b..b4310eba1 100644
--- a/services/iaas/src/stackit/iaas/models/create_network_area_range_payload.py
+++ b/services/iaas/src/stackit/iaas/models/create_network_area_range_payload.py
@@ -31,7 +31,7 @@ class CreateNetworkAreaRangePayload(BaseModel):
     """  # noqa: E501
 
     ipv4: Optional[Annotated[List[NetworkRange], Field(min_length=1, max_length=64)]] = Field(
-        default=None, description="A list of network ranges."
+        default=None, description="A list of network area network ranges."
     )
     __properties: ClassVar[List[str]] = ["ipv4"]
 
diff --git a/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix.py b/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix.py
index e22412b08..b608e2f4b 100644
--- a/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix.py
+++ b/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix.py
@@ -18,6 +18,7 @@
 import pprint
 import re  # noqa: F401
 from typing import Any, ClassVar, Dict, List, Optional, Set
+from uuid import UUID
 
 from pydantic import BaseModel, ConfigDict, Field, field_validator
 from pydantic_core import to_jsonable_python
@@ -37,7 +38,10 @@ class CreateNetworkIPv4WithPrefix(BaseModel):
         default=None, description="A list containing DNS Servers/Nameservers for IPv4."
     )
     prefix: Annotated[str, Field(strict=True)] = Field(description="IPv4 Classless Inter-Domain Routing (CIDR).")
-    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefix"]
+    vpc_network_range_id: Optional[UUID] = Field(
+        default=None, description="Universally Unique Identifier (UUID).", alias="vpcNetworkRangeId"
+    )
+    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefix", "vpcNetworkRangeId"]
 
     @field_validator("gateway")
     def gateway_validate_regular_expression(cls, value):
@@ -72,6 +76,21 @@ def prefix_validate_regular_expression(cls, value):
             )
         return value
 
+    @field_validator("vpc_network_range_id")
+    def vpc_network_range_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
+
     model_config = ConfigDict(
         validate_by_name=True,
         validate_by_alias=True,
@@ -126,6 +145,11 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
             return cls.model_validate(obj)
 
         _obj = cls.model_validate(
-            {"gateway": obj.get("gateway"), "nameservers": obj.get("nameservers"), "prefix": obj.get("prefix")}
+            {
+                "gateway": obj.get("gateway"),
+                "nameservers": obj.get("nameservers"),
+                "prefix": obj.get("prefix"),
+                "vpcNetworkRangeId": obj.get("vpcNetworkRangeId"),
+            }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix_length.py b/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix_length.py
index 463bcd02f..eac401887 100644
--- a/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix_length.py
+++ b/services/iaas/src/stackit/iaas/models/create_network_ipv4_with_prefix_length.py
@@ -16,9 +16,11 @@
 
 import json
 import pprint
+import re  # noqa: F401
 from typing import Any, ClassVar, Dict, List, Optional, Set
+from uuid import UUID
 
-from pydantic import BaseModel, ConfigDict, Field
+from pydantic import BaseModel, ConfigDict, Field, field_validator
 from pydantic_core import to_jsonable_python
 from typing_extensions import Annotated, Self
 
@@ -32,7 +34,25 @@ class CreateNetworkIPv4WithPrefixLength(BaseModel):
         default=None, description="A list containing DNS Servers/Nameservers for IPv4."
     )
     prefix_length: Annotated[int, Field(le=29, strict=True, ge=8)] = Field(alias="prefixLength")
-    __properties: ClassVar[List[str]] = ["nameservers", "prefixLength"]
+    vpc_network_range_id: Optional[UUID] = Field(
+        default=None, description="Universally Unique Identifier (UUID).", alias="vpcNetworkRangeId"
+    )
+    __properties: ClassVar[List[str]] = ["nameservers", "prefixLength", "vpcNetworkRangeId"]
+
+    @field_validator("vpc_network_range_id")
+    def vpc_network_range_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
 
     model_config = ConfigDict(
         validate_by_name=True,
@@ -82,5 +102,11 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
-        _obj = cls.model_validate({"nameservers": obj.get("nameservers"), "prefixLength": obj.get("prefixLength")})
+        _obj = cls.model_validate(
+            {
+                "nameservers": obj.get("nameservers"),
+                "prefixLength": obj.get("prefixLength"),
+                "vpcNetworkRangeId": obj.get("vpcNetworkRangeId"),
+            }
+        )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix.py b/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix.py
index 9c3e9ba7c..3b98408f4 100644
--- a/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix.py
+++ b/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix.py
@@ -18,6 +18,7 @@
 import pprint
 import re  # noqa: F401
 from typing import Any, ClassVar, Dict, List, Optional, Set
+from uuid import UUID
 
 from pydantic import BaseModel, ConfigDict, Field, field_validator
 from pydantic_core import to_jsonable_python
@@ -37,7 +38,10 @@ class CreateNetworkIPv6WithPrefix(BaseModel):
         default=None, description="A list containing DNS Servers/Nameservers for IPv6."
     )
     prefix: Annotated[str, Field(strict=True)] = Field(description="Classless Inter-Domain Routing (CIDR) for IPv6.")
-    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefix"]
+    vpc_network_range_id: Optional[UUID] = Field(
+        default=None, description="Universally Unique Identifier (UUID).", alias="vpcNetworkRangeId"
+    )
+    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefix", "vpcNetworkRangeId"]
 
     @field_validator("gateway")
     def gateway_validate_regular_expression(cls, value):
@@ -72,6 +76,21 @@ def prefix_validate_regular_expression(cls, value):
             )
         return value
 
+    @field_validator("vpc_network_range_id")
+    def vpc_network_range_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
+
     model_config = ConfigDict(
         validate_by_name=True,
         validate_by_alias=True,
@@ -126,6 +145,11 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
             return cls.model_validate(obj)
 
         _obj = cls.model_validate(
-            {"gateway": obj.get("gateway"), "nameservers": obj.get("nameservers"), "prefix": obj.get("prefix")}
+            {
+                "gateway": obj.get("gateway"),
+                "nameservers": obj.get("nameservers"),
+                "prefix": obj.get("prefix"),
+                "vpcNetworkRangeId": obj.get("vpcNetworkRangeId"),
+            }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix_length.py b/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix_length.py
index 8696f5cad..eeac42916 100644
--- a/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix_length.py
+++ b/services/iaas/src/stackit/iaas/models/create_network_ipv6_with_prefix_length.py
@@ -16,9 +16,11 @@
 
 import json
 import pprint
+import re  # noqa: F401
 from typing import Any, ClassVar, Dict, List, Optional, Set
+from uuid import UUID
 
-from pydantic import BaseModel, ConfigDict, Field
+from pydantic import BaseModel, ConfigDict, Field, field_validator
 from pydantic_core import to_jsonable_python
 from typing_extensions import Annotated, Self
 
@@ -32,7 +34,25 @@ class CreateNetworkIPv6WithPrefixLength(BaseModel):
         default=None, description="A list containing DNS Servers/Nameservers for IPv6."
     )
     prefix_length: Annotated[int, Field(le=128, strict=True, ge=56)] = Field(alias="prefixLength")
-    __properties: ClassVar[List[str]] = ["nameservers", "prefixLength"]
+    vpc_network_range_id: Optional[UUID] = Field(
+        default=None, description="Universally Unique Identifier (UUID).", alias="vpcNetworkRangeId"
+    )
+    __properties: ClassVar[List[str]] = ["nameservers", "prefixLength", "vpcNetworkRangeId"]
+
+    @field_validator("vpc_network_range_id")
+    def vpc_network_range_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
 
     model_config = ConfigDict(
         validate_by_name=True,
@@ -82,5 +102,11 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
         if not isinstance(obj, dict):
             return cls.model_validate(obj)
 
-        _obj = cls.model_validate({"nameservers": obj.get("nameservers"), "prefixLength": obj.get("prefixLength")})
+        _obj = cls.model_validate(
+            {
+                "nameservers": obj.get("nameservers"),
+                "prefixLength": obj.get("prefixLength"),
+                "vpcNetworkRangeId": obj.get("vpcNetworkRangeId"),
+            }
+        )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/create_network_payload.py b/services/iaas/src/stackit/iaas/models/create_network_payload.py
index d6e932255..522844a41 100644
--- a/services/iaas/src/stackit/iaas/models/create_network_payload.py
+++ b/services/iaas/src/stackit/iaas/models/create_network_payload.py
@@ -49,7 +49,8 @@ class CreateNetworkPayload(BaseModel):
     routing_table_id: Optional[UUID] = Field(
         default=None, description="Universally Unique Identifier (UUID).", alias="routingTableId"
     )
-    __properties: ClassVar[List[str]] = ["dhcp", "ipv4", "ipv6", "labels", "name", "routed", "routingTableId"]
+    vpc_id: Optional[UUID] = Field(default=None, description="The identifier (ID) of a STACKIT VPC.", alias="vpcId")
+    __properties: ClassVar[List[str]] = ["dhcp", "ipv4", "ipv6", "labels", "name", "routed", "routingTableId", "vpcId"]
 
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
@@ -76,6 +77,21 @@ def routing_table_id_validate_regular_expression(cls, value):
             )
         return value
 
+    @field_validator("vpc_id")
+    def vpc_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
+
     model_config = ConfigDict(
         validate_by_name=True,
         validate_by_alias=True,
@@ -139,6 +155,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                 "name": obj.get("name"),
                 "routed": obj.get("routed"),
                 "routingTableId": obj.get("routingTableId"),
+                "vpcId": obj.get("vpcId"),
             }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/create_server_payload.py b/services/iaas/src/stackit/iaas/models/create_server_payload.py
index 632f7c184..3546ad6b3 100644
--- a/services/iaas/src/stackit/iaas/models/create_server_payload.py
+++ b/services/iaas/src/stackit/iaas/models/create_server_payload.py
@@ -40,6 +40,7 @@
 from stackit.iaas.models.server_agent import ServerAgent
 from stackit.iaas.models.server_maintenance import ServerMaintenance
 from stackit.iaas.models.server_network import ServerNetwork
+from stackit.iaas.models.server_vtpm import ServerVTPM
 
 
 class CreateServerPayload(BaseModel):
@@ -118,6 +119,7 @@ class CreateServerPayload(BaseModel):
         alias="userData",
     )
     volumes: Optional[List[UUID]] = Field(default=None, description="The list of volumes attached to the server.")
+    vtpm: Optional[ServerVTPM] = None
     __properties: ClassVar[List[str]] = [
         "affinityGroup",
         "agent",
@@ -144,6 +146,7 @@ class CreateServerPayload(BaseModel):
         "updatedAt",
         "userData",
         "volumes",
+        "vtpm",
     ]
 
     @field_validator("affinity_group")
@@ -345,6 +348,9 @@ def to_dict(self) -> Dict[str, Any]:
                 if _item_nics:
                     _items.append(_item_nics.to_dict())
             _dict["nics"] = _items
+        # override the default output from pydantic by calling `to_dict()` of vtpm
+        if self.vtpm:
+            _dict["vtpm"] = self.vtpm.to_dict()
         return _dict
 
     @classmethod
@@ -393,6 +399,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                 "updatedAt": obj.get("updatedAt"),
                 "userData": obj.get("userData"),
                 "volumes": obj.get("volumes"),
+                "vtpm": ServerVTPM.from_dict(obj["vtpm"]) if obj.get("vtpm") is not None else None,
             }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/create_snapshot_payload.py b/services/iaas/src/stackit/iaas/models/create_snapshot_payload.py
index fe1a587f2..f12589f8b 100644
--- a/services/iaas/src/stackit/iaas/models/create_snapshot_payload.py
+++ b/services/iaas/src/stackit/iaas/models/create_snapshot_payload.py
@@ -31,6 +31,9 @@ class CreateSnapshotPayload(BaseModel):
     Object that represents a snapshot.
     """  # noqa: E501
 
+    availability_zone: Optional[StrictStr] = Field(
+        default=None, description="Object that represents an availability zone.", alias="availabilityZone"
+    )
     created_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was created.", alias="createdAt"
     )
@@ -55,6 +58,7 @@ class CreateSnapshotPayload(BaseModel):
     )
     volume_id: UUID = Field(description="Universally Unique Identifier (UUID).", alias="volumeId")
     __properties: ClassVar[List[str]] = [
+        "availabilityZone",
         "createdAt",
         "description",
         "id",
@@ -166,9 +170,11 @@ def to_dict(self) -> Dict[str, Any]:
         * OpenAPI `readOnly` fields are excluded.
         * OpenAPI `readOnly` fields are excluded.
         * OpenAPI `readOnly` fields are excluded.
+        * OpenAPI `readOnly` fields are excluded.
         """
         excluded_fields: Set[str] = set(
             [
+                "availability_zone",
                 "created_at",
                 "id",
                 "size",
@@ -195,6 +201,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
 
         _obj = cls.model_validate(
             {
+                "availabilityZone": obj.get("availabilityZone"),
                 "createdAt": obj.get("createdAt"),
                 "description": obj.get("description"),
                 "id": obj.get("id"),
diff --git a/services/iaas/src/stackit/iaas/models/create_volume_payload.py b/services/iaas/src/stackit/iaas/models/create_volume_payload.py
index cc7f037e9..c4f6558e5 100644
--- a/services/iaas/src/stackit/iaas/models/create_volume_payload.py
+++ b/services/iaas/src/stackit/iaas/models/create_volume_payload.py
@@ -76,7 +76,7 @@ class CreateVolumePayload(BaseModel):
     source: Optional[VolumeSource] = None
     status: Optional[StrictStr] = Field(
         default=None,
-        description="The status of a volume object. Possible values: `ATTACHED`, `ATTACHING`, `AVAILABLE`, `AWAITING-TRANSFER`, `BACKING-UP`, `CREATING`, `DELETED`, `DELETING`, `DETACHING`, `DOWNLOADING`, `ERROR`, `ERROR_BACKING-UP`, `ERROR_DELETING`, `ERROR_RESIZING`, `ERROR_RESTORING-BACKUP`, `MAINTENANCE`, `RESERVED`, `RESIZING`, `RESTORING-BACKUP`, `RETYPING`, `UPLOADING`.",
+        description="The status of a volume object. Possible values: `ATTACHED`, `ATTACHING`, `AVAILABLE`, `AWAITING-TRANSFER`, `BACKING-UP`, `CREATING`, `DELETED`, `DELETING`, `DETACHING`, `DOWNLOADING`, `ERROR`, `ERROR_BACKING-UP`, `ERROR_DELETING`, `ERROR_RESIZING`, `ERROR_RESTORING-BACKUP`, `ERROR_KMS-ENCRYPTION-PARAMS`, `MAINTENANCE`, `RESERVED`, `RESIZING`, `RESTORING-BACKUP`, `RETYPING`, `UPLOADING`.",
     )
     updated_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was last updated.", alias="updatedAt"
diff --git a/services/iaas/src/stackit/iaas/models/network.py b/services/iaas/src/stackit/iaas/models/network.py
index ad56498e3..98b6806b9 100644
--- a/services/iaas/src/stackit/iaas/models/network.py
+++ b/services/iaas/src/stackit/iaas/models/network.py
@@ -65,6 +65,7 @@ class Network(BaseModel):
     updated_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was last updated.", alias="updatedAt"
     )
+    vpc_id: Optional[UUID] = Field(default=None, description="The identifier (ID) of a STACKIT VPC.", alias="vpcId")
     __properties: ClassVar[List[str]] = [
         "createdAt",
         "dhcp",
@@ -77,6 +78,7 @@ class Network(BaseModel):
         "routingTableId",
         "status",
         "updatedAt",
+        "vpcId",
     ]
 
     @field_validator("created_at", mode="before")
@@ -132,6 +134,21 @@ def updated_at_change_year_zero_to_one(cls, value):
                 return "0001" + value[4:]  # Take "0001" and append the rest of the string
         return value
 
+    @field_validator("vpc_id")
+    def vpc_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
+
     model_config = ConfigDict(
         validate_by_name=True,
         validate_by_alias=True,
@@ -206,6 +223,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                 "routingTableId": obj.get("routingTableId"),
                 "status": obj.get("status"),
                 "updatedAt": obj.get("updatedAt"),
+                "vpcId": obj.get("vpcId"),
             }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/network_ipv4.py b/services/iaas/src/stackit/iaas/models/network_ipv4.py
index d3ae80e55..6b3b5481e 100644
--- a/services/iaas/src/stackit/iaas/models/network_ipv4.py
+++ b/services/iaas/src/stackit/iaas/models/network_ipv4.py
@@ -18,6 +18,7 @@
 import pprint
 import re  # noqa: F401
 from typing import Any, ClassVar, Dict, List, Optional, Set
+from uuid import UUID
 
 from pydantic import BaseModel, ConfigDict, Field, field_validator
 from pydantic_core import to_jsonable_python
@@ -40,7 +41,10 @@ class NetworkIPv4(BaseModel):
     public_ip: Optional[Annotated[str, Field(strict=True)]] = Field(
         default=None, description="String that represents an IPv4 address.", alias="publicIp"
     )
-    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefixes", "publicIp"]
+    vpc_network_range_id: Optional[UUID] = Field(
+        default=None, description="Universally Unique Identifier (UUID).", alias="vpcNetworkRangeId"
+    )
+    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefixes", "publicIp", "vpcNetworkRangeId"]
 
     @field_validator("gateway")
     def gateway_validate_regular_expression(cls, value):
@@ -78,6 +82,21 @@ def public_ip_validate_regular_expression(cls, value):
             )
         return value
 
+    @field_validator("vpc_network_range_id")
+    def vpc_network_range_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
+
     model_config = ConfigDict(
         validate_by_name=True,
         validate_by_alias=True,
@@ -142,6 +161,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                 "nameservers": obj.get("nameservers"),
                 "prefixes": obj.get("prefixes"),
                 "publicIp": obj.get("publicIp"),
+                "vpcNetworkRangeId": obj.get("vpcNetworkRangeId"),
             }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/network_ipv6.py b/services/iaas/src/stackit/iaas/models/network_ipv6.py
index 7a138a34d..55fd0495e 100644
--- a/services/iaas/src/stackit/iaas/models/network_ipv6.py
+++ b/services/iaas/src/stackit/iaas/models/network_ipv6.py
@@ -18,6 +18,7 @@
 import pprint
 import re  # noqa: F401
 from typing import Any, ClassVar, Dict, List, Optional, Set
+from uuid import UUID
 
 from pydantic import BaseModel, ConfigDict, Field, field_validator
 from pydantic_core import to_jsonable_python
@@ -37,7 +38,10 @@ class NetworkIPv6(BaseModel):
         default=None, description="A list containing DNS Servers/Nameservers for IPv6."
     )
     prefixes: List[Annotated[str, Field(strict=True)]]
-    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefixes"]
+    vpc_network_range_id: Optional[UUID] = Field(
+        default=None, description="Universally Unique Identifier (UUID).", alias="vpcNetworkRangeId"
+    )
+    __properties: ClassVar[List[str]] = ["gateway", "nameservers", "prefixes", "vpcNetworkRangeId"]
 
     @field_validator("gateway")
     def gateway_validate_regular_expression(cls, value):
@@ -57,6 +61,21 @@ def gateway_validate_regular_expression(cls, value):
             )
         return value
 
+    @field_validator("vpc_network_range_id")
+    def vpc_network_range_id_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$", value):
+            raise ValueError(
+                r"must validate the regular expression /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/"
+            )
+        return value
+
     model_config = ConfigDict(
         validate_by_name=True,
         validate_by_alias=True,
@@ -111,6 +130,11 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
             return cls.model_validate(obj)
 
         _obj = cls.model_validate(
-            {"gateway": obj.get("gateway"), "nameservers": obj.get("nameservers"), "prefixes": obj.get("prefixes")}
+            {
+                "gateway": obj.get("gateway"),
+                "nameservers": obj.get("nameservers"),
+                "prefixes": obj.get("prefixes"),
+                "vpcNetworkRangeId": obj.get("vpcNetworkRangeId"),
+            }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/network_range.py b/services/iaas/src/stackit/iaas/models/network_range.py
index df4281fd9..aa2100999 100644
--- a/services/iaas/src/stackit/iaas/models/network_range.py
+++ b/services/iaas/src/stackit/iaas/models/network_range.py
@@ -28,7 +28,7 @@
 
 class NetworkRange(BaseModel):
     """
-    Object that represents a network range.
+    Object that represents a network range of a network area.
     """  # noqa: E501
 
     created_at: Optional[datetime] = Field(
diff --git a/services/iaas/src/stackit/iaas/models/network_range_list_response.py b/services/iaas/src/stackit/iaas/models/network_range_list_response.py
index 34b774b24..2b5129a81 100644
--- a/services/iaas/src/stackit/iaas/models/network_range_list_response.py
+++ b/services/iaas/src/stackit/iaas/models/network_range_list_response.py
@@ -27,11 +27,11 @@
 
 class NetworkRangeListResponse(BaseModel):
     """
-    Network Range list response.
+    Network Range list response of a network area.
     """  # noqa: E501
 
     items: Annotated[List[NetworkRange], Field(min_length=1, max_length=64)] = Field(
-        description="A list of network ranges."
+        description="A list of network area network ranges."
     )
     __properties: ClassVar[List[str]] = ["items"]
 
diff --git a/services/iaas/src/stackit/iaas/models/regional_area_ipv4.py b/services/iaas/src/stackit/iaas/models/regional_area_ipv4.py
index 2a4538ce0..bd45b3902 100644
--- a/services/iaas/src/stackit/iaas/models/regional_area_ipv4.py
+++ b/services/iaas/src/stackit/iaas/models/regional_area_ipv4.py
@@ -44,7 +44,7 @@ class RegionalAreaIPv4(BaseModel):
         description="The minimal prefix length for networks in the network area.", alias="minPrefixLen"
     )
     network_ranges: Annotated[List[NetworkRange], Field(min_length=1, max_length=64)] = Field(
-        description="A list of network ranges.", alias="networkRanges"
+        description="A list of network area network ranges.", alias="networkRanges"
     )
     transfer_network: Annotated[str, Field(strict=True)] = Field(
         description="IPv4 Classless Inter-Domain Routing (CIDR).", alias="transferNetwork"
diff --git a/services/iaas/src/stackit/iaas/models/request.py b/services/iaas/src/stackit/iaas/models/request.py
index ac6d2f911..d4bd151bb 100644
--- a/services/iaas/src/stackit/iaas/models/request.py
+++ b/services/iaas/src/stackit/iaas/models/request.py
@@ -40,7 +40,7 @@ class Request(BaseModel):
         description="Identifier (ID) representing a single API request.", alias="requestId"
     )
     request_type: StrictStr = Field(
-        description="Object that represents a resource type. Possible values: `BACKUP`, `IMAGE`, `NETWORK`, `NETWORKAREA`, `NIC`, `PROJECT`, `ROUTE`, `SERVER`, `SERVICEACCOUNT`, `SNAPSHOT`, `VIRTUALIP`, `VOLUME`.",
+        description="Object that represents a resource type. Possible values: `BACKUP`, `IMAGE`, `NETWORK`, `NETWORKAREA`, `NIC`, `PROJECT`, `ROUTE`, `SERVER`, `SERVICEACCOUNT`, `SNAPSHOT`, `VIRTUALIP`, `VOLUME`, `VPC`, `VPCNETWORKRANGE`.",
         alias="requestType",
     )
     resources: List[RequestResource]
diff --git a/services/iaas/src/stackit/iaas/models/request_resource.py b/services/iaas/src/stackit/iaas/models/request_resource.py
index ffbe144d8..496d40d23 100644
--- a/services/iaas/src/stackit/iaas/models/request_resource.py
+++ b/services/iaas/src/stackit/iaas/models/request_resource.py
@@ -35,7 +35,7 @@ class RequestResource(BaseModel):
         description="The state of a resource object. Possible values: `CREATING`, `CREATED`, `DELETING`, `DELETED`, `FAILED`, `UPDATED`, `UPDATING`."
     )
     type: StrictStr = Field(
-        description="Object that represents a resource type. Possible values: `BACKUP`, `IMAGE`, `NETWORK`, `NETWORKAREA`, `NIC`, `PROJECT`, `ROUTE`, `SERVER`, `SERVICEACCOUNT`, `SNAPSHOT`, `VIRTUALIP`, `VOLUME`."
+        description="Object that represents a resource type. Possible values: `BACKUP`, `IMAGE`, `NETWORK`, `NETWORKAREA`, `NIC`, `PROJECT`, `ROUTE`, `SERVER`, `SERVICEACCOUNT`, `SNAPSHOT`, `VIRTUALIP`, `VOLUME`, `VPC`, `VPCNETWORKRANGE`."
     )
     __properties: ClassVar[List[str]] = ["id", "status", "type"]
 
diff --git a/services/iaas/src/stackit/iaas/models/routing_table.py b/services/iaas/src/stackit/iaas/models/routing_table.py
index a9ad199e0..2b74e643c 100644
--- a/services/iaas/src/stackit/iaas/models/routing_table.py
+++ b/services/iaas/src/stackit/iaas/models/routing_table.py
@@ -28,7 +28,7 @@
 
 class RoutingTable(BaseModel):
     """
-    An object representing a routing table.
+    An object representing a routing table. Filterable Fields: `dynamicRoutes`, `systemRoutes`.
     """  # noqa: E501
 
     created_at: Optional[datetime] = Field(
diff --git a/services/iaas/src/stackit/iaas/models/server.py b/services/iaas/src/stackit/iaas/models/server.py
index 59460c8e1..cb3a7a4f1 100644
--- a/services/iaas/src/stackit/iaas/models/server.py
+++ b/services/iaas/src/stackit/iaas/models/server.py
@@ -38,6 +38,7 @@
 from stackit.iaas.models.server_maintenance import ServerMaintenance
 from stackit.iaas.models.server_network import ServerNetwork
 from stackit.iaas.models.server_networking import ServerNetworking
+from stackit.iaas.models.server_vtpm import ServerVTPM
 
 
 class Server(BaseModel):
@@ -116,6 +117,7 @@ class Server(BaseModel):
         alias="userData",
     )
     volumes: Optional[List[UUID]] = Field(default=None, description="The list of volumes attached to the server.")
+    vtpm: Optional[ServerVTPM] = None
     __properties: ClassVar[List[str]] = [
         "affinityGroup",
         "agent",
@@ -142,6 +144,7 @@ class Server(BaseModel):
         "updatedAt",
         "userData",
         "volumes",
+        "vtpm",
     ]
 
     @field_validator("affinity_group")
@@ -343,6 +346,9 @@ def to_dict(self) -> Dict[str, Any]:
                 if _item_nics:
                     _items.append(_item_nics.to_dict())
             _dict["nics"] = _items
+        # override the default output from pydantic by calling `to_dict()` of vtpm
+        if self.vtpm:
+            _dict["vtpm"] = self.vtpm.to_dict()
         return _dict
 
     @classmethod
@@ -389,6 +395,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                 "updatedAt": obj.get("updatedAt"),
                 "userData": obj.get("userData"),
                 "volumes": obj.get("volumes"),
+                "vtpm": ServerVTPM.from_dict(obj["vtpm"]) if obj.get("vtpm") is not None else None,
             }
         )
         return _obj
diff --git a/services/iaas/src/stackit/iaas/models/server_vtpm.py b/services/iaas/src/stackit/iaas/models/server_vtpm.py
new file mode 100644
index 000000000..7d2d19c5c
--- /dev/null
+++ b/services/iaas/src/stackit/iaas/models/server_vtpm.py
@@ -0,0 +1,85 @@
+# coding: utf-8
+
+"""
+    STACKIT IaaS API
+
+    This API allows you to create and modify IaaS resources.
+
+    The version of the OpenAPI document: 2
+    Contact: stackit-iaas@mail.schwarz
+    Generated by OpenAPI Generator (https://openapi-generator.tech)
+
+    Do not edit the class manually.
+"""  # noqa: E501
+
+from __future__ import annotations
+
+import json
+import pprint
+from typing import Any, ClassVar, Dict, List, Optional, Set
+
+from pydantic import BaseModel, ConfigDict, Field, StrictBool
+from pydantic_core import to_jsonable_python
+from typing_extensions import Self
+
+
+class ServerVTPM(BaseModel):
+    """
+    Configuration for the Virtual Trusted Platform Module (vTPM).
+    """  # noqa: E501
+
+    enabled: StrictBool = Field(
+        description="Defines whether the server instance has the Virtual Trusted Platform Module (vTPM) enabled."
+    )
+    __properties: ClassVar[List[str]] = ["enabled"]
+
+    model_config = ConfigDict(
+        validate_by_name=True,
+        validate_by_alias=True,
+        validate_assignment=True,
+        protected_namespaces=(),
+    )
+
+    def to_str(self) -> str:
+        """Returns the string representation of the model using alias"""
+        return pprint.pformat(self.model_dump(by_alias=True))
+
+    def to_json(self) -> str:
+        """Returns the JSON representation of the model using alias"""
+        return json.dumps(to_jsonable_python(self.to_dict()))
+
+    @classmethod
+    def from_json(cls, json_str: str) -> Optional[Self]:
+        """Create an instance of ServerVTPM from a JSON string"""
+        return cls.from_dict(json.loads(json_str))
+
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        excluded_fields: Set[str] = set([])
+
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude=excluded_fields,
+            exclude_none=True,
+        )
+        return _dict
+
+    @classmethod
+    def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
+        """Create an instance of ServerVTPM from a dict"""
+        if obj is None:
+            return None
+
+        if not isinstance(obj, dict):
+            return cls.model_validate(obj)
+
+        _obj = cls.model_validate({"enabled": obj.get("enabled") if obj.get("enabled") is not None else False})
+        return _obj
diff --git a/services/iaas/src/stackit/iaas/models/snapshot.py b/services/iaas/src/stackit/iaas/models/snapshot.py
index d30d9549d..620b4551f 100644
--- a/services/iaas/src/stackit/iaas/models/snapshot.py
+++ b/services/iaas/src/stackit/iaas/models/snapshot.py
@@ -31,6 +31,9 @@ class Snapshot(BaseModel):
     Object that represents a snapshot.
     """  # noqa: E501
 
+    availability_zone: Optional[StrictStr] = Field(
+        default=None, description="Object that represents an availability zone.", alias="availabilityZone"
+    )
     created_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was created.", alias="createdAt"
     )
@@ -55,6 +58,7 @@ class Snapshot(BaseModel):
     )
     volume_id: UUID = Field(description="Universally Unique Identifier (UUID).", alias="volumeId")
     __properties: ClassVar[List[str]] = [
+        "availabilityZone",
         "createdAt",
         "description",
         "id",
@@ -166,9 +170,11 @@ def to_dict(self) -> Dict[str, Any]:
         * OpenAPI `readOnly` fields are excluded.
         * OpenAPI `readOnly` fields are excluded.
         * OpenAPI `readOnly` fields are excluded.
+        * OpenAPI `readOnly` fields are excluded.
         """
         excluded_fields: Set[str] = set(
             [
+                "availability_zone",
                 "created_at",
                 "id",
                 "size",
@@ -195,6 +201,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
 
         _obj = cls.model_validate(
             {
+                "availabilityZone": obj.get("availabilityZone"),
                 "createdAt": obj.get("createdAt"),
                 "description": obj.get("description"),
                 "id": obj.get("id"),
diff --git a/services/iaas/src/stackit/iaas/models/volume.py b/services/iaas/src/stackit/iaas/models/volume.py
index f6f660a72..e93c8d342 100644
--- a/services/iaas/src/stackit/iaas/models/volume.py
+++ b/services/iaas/src/stackit/iaas/models/volume.py
@@ -76,7 +76,7 @@ class Volume(BaseModel):
     source: Optional[VolumeSource] = None
     status: Optional[StrictStr] = Field(
         default=None,
-        description="The status of a volume object. Possible values: `ATTACHED`, `ATTACHING`, `AVAILABLE`, `AWAITING-TRANSFER`, `BACKING-UP`, `CREATING`, `DELETED`, `DELETING`, `DETACHING`, `DOWNLOADING`, `ERROR`, `ERROR_BACKING-UP`, `ERROR_DELETING`, `ERROR_RESIZING`, `ERROR_RESTORING-BACKUP`, `MAINTENANCE`, `RESERVED`, `RESIZING`, `RESTORING-BACKUP`, `RETYPING`, `UPLOADING`.",
+        description="The status of a volume object. Possible values: `ATTACHED`, `ATTACHING`, `AVAILABLE`, `AWAITING-TRANSFER`, `BACKING-UP`, `CREATING`, `DELETED`, `DELETING`, `DETACHING`, `DOWNLOADING`, `ERROR`, `ERROR_BACKING-UP`, `ERROR_DELETING`, `ERROR_RESIZING`, `ERROR_RESTORING-BACKUP`, `ERROR_KMS-ENCRYPTION-PARAMS`, `MAINTENANCE`, `RESERVED`, `RESIZING`, `RESTORING-BACKUP`, `RETYPING`, `UPLOADING`.",
     )
     updated_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was last updated.", alias="updatedAt"