diff --git a/services/iaasalpha/src/stackit/iaasalpha/api/default_api.py b/services/iaasalpha/src/stackit/iaasalpha/api/default_api.py
index 740ec3cde..4e1587858 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/api/default_api.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/api/default_api.py
@@ -14332,7 +14332,7 @@ def get_machine_type(
             str,
             Field(min_length=36, strict=True, max_length=36, description="The identifier (ID) of a STACKIT Project."),
         ],
-        machine_type: Annotated[str, Field(strict=True, max_length=63, description="STACKIT machine type Name.")],
+        machine_type: Annotated[str, Field(strict=True, max_length=127, description="STACKIT machine type Name.")],
         _request_timeout: Union[
             None,
             Annotated[StrictFloat, Field(gt=0)],
@@ -14404,7 +14404,7 @@ def get_machine_type_with_http_info(
             str,
             Field(min_length=36, strict=True, max_length=36, description="The identifier (ID) of a STACKIT Project."),
         ],
-        machine_type: Annotated[str, Field(strict=True, max_length=63, description="STACKIT machine type Name.")],
+        machine_type: Annotated[str, Field(strict=True, max_length=127, description="STACKIT machine type Name.")],
         _request_timeout: Union[
             None,
             Annotated[StrictFloat, Field(gt=0)],
@@ -14476,7 +14476,7 @@ def get_machine_type_without_preload_content(
             str,
             Field(min_length=36, strict=True, max_length=36, description="The identifier (ID) of a STACKIT Project."),
         ],
-        machine_type: Annotated[str, Field(strict=True, max_length=63, description="STACKIT machine type Name.")],
+        machine_type: Annotated[str, Field(strict=True, max_length=127, description="STACKIT machine type Name.")],
         _request_timeout: Union[
             None,
             Annotated[StrictFloat, Field(gt=0)],
@@ -19759,7 +19759,7 @@ def get_volume_performance_class(
             Field(min_length=36, strict=True, max_length=36, description="The identifier (ID) of a STACKIT Project."),
         ],
         volume_performance_class: Annotated[
-            str, Field(strict=True, max_length=63, description="The name of a STACKIT Volume performance class.")
+            str, Field(strict=True, max_length=127, description="The name of a STACKIT Volume performance class.")
         ],
         _request_timeout: Union[
             None,
@@ -19833,7 +19833,7 @@ def get_volume_performance_class_with_http_info(
             Field(min_length=36, strict=True, max_length=36, description="The identifier (ID) of a STACKIT Project."),
         ],
         volume_performance_class: Annotated[
-            str, Field(strict=True, max_length=63, description="The name of a STACKIT Volume performance class.")
+            str, Field(strict=True, max_length=127, description="The name of a STACKIT Volume performance class.")
         ],
         _request_timeout: Union[
             None,
@@ -19907,7 +19907,7 @@ def get_volume_performance_class_without_preload_content(
             Field(min_length=36, strict=True, max_length=36, description="The identifier (ID) of a STACKIT Project."),
         ],
         volume_performance_class: Annotated[
-            str, Field(strict=True, max_length=63, description="The name of a STACKIT Volume performance class.")
+            str, Field(strict=True, max_length=127, description="The name of a STACKIT Volume performance class.")
         ],
         _request_timeout: Union[
             None,
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/affinity_group.py b/services/iaasalpha/src/stackit/iaasalpha/models/affinity_group.py
index 835257e93..4b417c6cd 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/affinity_group.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/affinity_group.py
@@ -34,7 +34,7 @@ class AffinityGroup(BaseModel):
     members: Optional[List[Annotated[str, Field(min_length=36, strict=True, max_length=36)]]] = Field(
         default=None, description="The servers that are part of the affinity group."
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     policy: StrictStr = Field(
@@ -57,8 +57,8 @@ def id_validate_regular_expression(cls, value):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/backup.py b/services/iaasalpha/src/stackit/iaasalpha/models/backup.py
index cb3ff573f..92f2766a7 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/backup.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/backup.py
@@ -42,7 +42,7 @@ class Backup(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.")
@@ -90,8 +90,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("snapshot_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/boot_volume.py b/services/iaasalpha/src/stackit/iaasalpha/models/boot_volume.py
index 9801ab1a2..6b588ccd5 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/boot_volume.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/boot_volume.py
@@ -45,7 +45,7 @@ class BootVolume(BaseModel):
     id: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
         default=None, description="Universally Unique Identifier (UUID)."
     )
-    performance_class: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    performance_class: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None,
         description="The name for a General Object. Matches Names and also UUIDs.",
         alias="performanceClass",
@@ -72,8 +72,8 @@ def performance_class_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_affinity_group_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_affinity_group_payload.py
index e86a396db..f4432c237 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_affinity_group_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_affinity_group_payload.py
@@ -34,7 +34,7 @@ class CreateAffinityGroupPayload(BaseModel):
     members: Optional[List[Annotated[str, Field(min_length=36, strict=True, max_length=36)]]] = Field(
         default=None, description="The servers that are part of the affinity group."
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     policy: StrictStr = Field(
@@ -57,8 +57,8 @@ def id_validate_regular_expression(cls, value):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_backup_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_backup_payload.py
index a5d12ac80..65d7eae41 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_backup_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_backup_payload.py
@@ -34,7 +34,7 @@ class CreateBackupPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     source: BackupSource
@@ -46,8 +46,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_image_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_image_payload.py
index c02e26be4..1656398e6 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_image_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_image_payload.py
@@ -57,7 +57,7 @@ class CreateImagePayload(BaseModel):
     )
     min_disk_size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.", alias="minDiskSize")
     min_ram: Optional[StrictInt] = Field(default=None, description="Size in Megabyte.", alias="minRam")
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     owner: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
@@ -108,8 +108,8 @@ def id_validate_regular_expression(cls, value):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("owner")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_network_area_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_network_area_payload.py
index 8a5bd0e73..9e12c940a 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_network_area_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_network_area_payload.py
@@ -35,7 +35,7 @@ class CreateNetworkAreaPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     __properties: ClassVar[List[str]] = ["addressFamily", "labels", "name"]
@@ -43,8 +43,8 @@ class CreateNetworkAreaPayload(BaseModel):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_network_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_network_payload.py
index 1b3d7af97..14dcfc598 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_network_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_network_payload.py
@@ -37,7 +37,7 @@ class CreateNetworkPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     routed: Optional[StrictBool] = Field(
@@ -48,8 +48,8 @@ class CreateNetworkPayload(BaseModel):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_nic_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_nic_payload.py
index 318601c42..af2dda5f0 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_nic_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_nic_payload.py
@@ -59,7 +59,7 @@ class CreateNicPayload(BaseModel):
     mac: Optional[Annotated[str, Field(strict=True)]] = Field(
         default=None, description="Object that represents an MAC address."
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     network_id: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
@@ -161,8 +161,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("network_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_security_group_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_security_group_payload.py
index 48bc45758..0eb9a7dbd 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_security_group_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_security_group_payload.py
@@ -44,7 +44,7 @@ class CreateSecurityGroupPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     rules: Optional[List[SecurityGroupRule]] = Field(
@@ -83,8 +83,8 @@ def id_validate_regular_expression(cls, value):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_server_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_server_payload.py
index 40dad5db4..863d3e9d5 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_server_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_server_payload.py
@@ -72,10 +72,14 @@ class CreateServerPayload(BaseModel):
     launched_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was launched.", alias="launchedAt"
     )
-    machine_type: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    machine_type: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="Name of the machine type the server shall belong to.", alias="machineType"
     )
     maintenance_window: Optional[ServerMaintenance] = Field(default=None, alias="maintenanceWindow")
+    metadata: Optional[Dict[str, Any]] = Field(
+        default=None,
+        description="Object that represents the metadata of an object. Regex for keys: `^[a-zA-Z0-9-_:. ]{1,255}$`. Regex for values: `^.{0,255}$`.",
+    )
     name: Annotated[str, Field(strict=True, max_length=63)] = Field(description="The name for a Server.")
     networking: Optional[CreateServerPayloadNetworking] = None
     nics: Optional[List[ServerNetwork]] = Field(
@@ -87,7 +91,7 @@ class CreateServerPayload(BaseModel):
         description="The power status of a server. Possible values: `CRASHED`, `ERROR`, `RUNNING`, `STOPPED`.",
         alias="powerStatus",
     )
-    security_groups: Optional[List[Annotated[str, Field(strict=True, max_length=63)]]] = Field(
+    security_groups: Optional[List[Annotated[str, Field(strict=True, max_length=127)]]] = Field(
         default=None, description="The initial security groups for the server creation.", alias="securityGroups"
     )
     service_account_mails: Optional[
@@ -125,6 +129,7 @@ class CreateServerPayload(BaseModel):
         "launchedAt",
         "machineType",
         "maintenanceWindow",
+        "metadata",
         "name",
         "networking",
         "nics",
@@ -186,15 +191,20 @@ def keypair_name_validate_regular_expression(cls, value):
     @field_validator("machine_type")
     def machine_type_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(
+            r"^(([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$",
+            value,
+        ):
+            raise ValueError(
+                r"must validate the regular expression /^(([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$/"
+            )
         return value
 
     model_config = ConfigDict(
@@ -300,6 +310,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                     if obj.get("maintenanceWindow") is not None
                     else None
                 ),
+                "metadata": obj.get("metadata"),
                 "name": obj.get("name"),
                 "networking": (
                     CreateServerPayloadNetworking.from_dict(obj["networking"])
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_snapshot_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_snapshot_payload.py
index 1535da3e0..a24865fd4 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_snapshot_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_snapshot_payload.py
@@ -39,7 +39,7 @@ class CreateSnapshotPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.")
@@ -73,8 +73,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("volume_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_virtual_ip_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_virtual_ip_payload.py
index 54a061fd1..756ff26c7 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_virtual_ip_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_virtual_ip_payload.py
@@ -41,7 +41,7 @@ class CreateVirtualIPPayload(BaseModel):
     members: Optional[List[Annotated[str, Field(min_length=36, strict=True, max_length=36)]]] = Field(
         default=None, description="A list of UUIDs."
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     network: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
@@ -86,8 +86,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("network")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/create_volume_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/create_volume_payload.py
index 54efef2c9..22776b802 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/create_volume_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/create_volume_payload.py
@@ -58,10 +58,10 @@ class CreateVolumePayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
-    performance_class: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    performance_class: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None,
         description="The name for a General Object. Matches Names and also UUIDs.",
         alias="performanceClass",
@@ -113,8 +113,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("performance_class")
@@ -123,8 +123,8 @@ def performance_class_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("server_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/image.py b/services/iaasalpha/src/stackit/iaasalpha/models/image.py
index 13649501f..c9ff69d13 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/image.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/image.py
@@ -57,7 +57,7 @@ class Image(BaseModel):
     )
     min_disk_size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.", alias="minDiskSize")
     min_ram: Optional[StrictInt] = Field(default=None, description="Size in Megabyte.", alias="minRam")
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     owner: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
@@ -108,8 +108,8 @@ def id_validate_regular_expression(cls, value):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("owner")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/machine_type.py b/services/iaasalpha/src/stackit/iaasalpha/models/machine_type.py
index 07733ecd0..f4ff7f4c7 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/machine_type.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/machine_type.py
@@ -37,7 +37,7 @@ class MachineType(BaseModel):
         description="Properties to control certain aspects or scheduling behavior for an object.",
         alias="extraSpecs",
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     ram: StrictInt = Field(description="Size in Megabyte.")
@@ -47,8 +47,8 @@ class MachineType(BaseModel):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/nic.py b/services/iaasalpha/src/stackit/iaasalpha/models/nic.py
index 5f6bd26a8..ead5ad3e6 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/nic.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/nic.py
@@ -59,7 +59,7 @@ class NIC(BaseModel):
     mac: Optional[Annotated[str, Field(strict=True)]] = Field(
         default=None, description="Object that represents an MAC address."
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     network_id: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
@@ -161,8 +161,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("network_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_area_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_area_payload.py
index 93cfddffa..4f2086082 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_area_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_area_payload.py
@@ -35,7 +35,7 @@ class PartialUpdateNetworkAreaPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     __properties: ClassVar[List[str]] = ["addressFamily", "labels", "name"]
@@ -46,8 +46,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_payload.py
index f0c1e8e7d..87b0ec506 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/partial_update_network_payload.py
@@ -37,7 +37,7 @@ class PartialUpdateNetworkPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     routed: Optional[StrictBool] = Field(
@@ -51,8 +51,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/resize_server_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/resize_server_payload.py
index 5b3cf3886..c090f3529 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/resize_server_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/resize_server_payload.py
@@ -28,7 +28,7 @@ class ResizeServerPayload(BaseModel):
     ResizeServerPayload
     """
 
-    machine_type: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    machine_type: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs.", alias="machineType"
     )
     __properties: ClassVar[List[str]] = ["machineType"]
@@ -36,8 +36,8 @@ class ResizeServerPayload(BaseModel):
     @field_validator("machine_type")
     def machine_type_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/security_group.py b/services/iaasalpha/src/stackit/iaasalpha/models/security_group.py
index 7b6e75cf7..23c702d7b 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/security_group.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/security_group.py
@@ -44,7 +44,7 @@ class SecurityGroup(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     rules: Optional[List[SecurityGroupRule]] = Field(
@@ -83,8 +83,8 @@ def id_validate_regular_expression(cls, value):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/server.py b/services/iaasalpha/src/stackit/iaasalpha/models/server.py
index 44246e12d..8cbdec874 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/server.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/server.py
@@ -72,10 +72,14 @@ class Server(BaseModel):
     launched_at: Optional[datetime] = Field(
         default=None, description="Date-time when resource was launched.", alias="launchedAt"
     )
-    machine_type: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    machine_type: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="Name of the machine type the server shall belong to.", alias="machineType"
     )
     maintenance_window: Optional[ServerMaintenance] = Field(default=None, alias="maintenanceWindow")
+    metadata: Optional[Dict[str, Any]] = Field(
+        default=None,
+        description="Object that represents the metadata of an object. Regex for keys: `^[a-zA-Z0-9-_:. ]{1,255}$`. Regex for values: `^.{0,255}$`.",
+    )
     name: Annotated[str, Field(strict=True, max_length=63)] = Field(description="The name for a Server.")
     networking: Optional[CreateServerPayloadNetworking] = None
     nics: Optional[List[ServerNetwork]] = Field(
@@ -87,7 +91,7 @@ class Server(BaseModel):
         description="The power status of a server. Possible values: `CRASHED`, `ERROR`, `RUNNING`, `STOPPED`.",
         alias="powerStatus",
     )
-    security_groups: Optional[List[Annotated[str, Field(strict=True, max_length=63)]]] = Field(
+    security_groups: Optional[List[Annotated[str, Field(strict=True, max_length=127)]]] = Field(
         default=None, description="The initial security groups for the server creation.", alias="securityGroups"
     )
     service_account_mails: Optional[
@@ -125,6 +129,7 @@ class Server(BaseModel):
         "launchedAt",
         "machineType",
         "maintenanceWindow",
+        "metadata",
         "name",
         "networking",
         "nics",
@@ -186,15 +191,20 @@ def keypair_name_validate_regular_expression(cls, value):
     @field_validator("machine_type")
     def machine_type_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(
+            r"^(([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$",
+            value,
+        ):
+            raise ValueError(
+                r"must validate the regular expression /^(([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$/"
+            )
         return value
 
     model_config = ConfigDict(
@@ -300,6 +310,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                     if obj.get("maintenanceWindow") is not None
                     else None
                 ),
+                "metadata": obj.get("metadata"),
                 "name": obj.get("name"),
                 "networking": (
                     CreateServerPayloadNetworking.from_dict(obj["networking"])
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/server_network.py b/services/iaasalpha/src/stackit/iaasalpha/models/server_network.py
index f6a52bed9..1ba2e42f8 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/server_network.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/server_network.py
@@ -43,7 +43,7 @@ class ServerNetwork(BaseModel):
     network_id: Annotated[str, Field(min_length=36, strict=True, max_length=36)] = Field(
         description="Universally Unique Identifier (UUID).", alias="networkId"
     )
-    network_name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    network_name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs.", alias="networkName"
     )
     nic_id: Annotated[str, Field(min_length=36, strict=True, max_length=36)] = Field(
@@ -121,8 +121,8 @@ def network_id_validate_regular_expression(cls, value):
     @field_validator("network_name")
     def network_name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("nic_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/snapshot.py b/services/iaasalpha/src/stackit/iaasalpha/models/snapshot.py
index e68f1e6e9..a4048eb12 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/snapshot.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/snapshot.py
@@ -39,7 +39,7 @@ class Snapshot(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.")
@@ -73,8 +73,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("volume_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_backup_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_backup_payload.py
index 5395d23b5..e5088a682 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_backup_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_backup_payload.py
@@ -42,7 +42,7 @@ class UpdateBackupPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.")
@@ -90,8 +90,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("snapshot_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_image_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_image_payload.py
index 1c49679f5..2258ccf98 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_image_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_image_payload.py
@@ -50,7 +50,7 @@ class UpdateImagePayload(BaseModel):
     )
     min_disk_size: Optional[StrictInt] = Field(default=None, description="Size in Gigabyte.", alias="minDiskSize")
     min_ram: Optional[StrictInt] = Field(default=None, description="Size in Megabyte.", alias="minRam")
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     protected: Optional[StrictBool] = None
@@ -62,8 +62,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_nic_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_nic_payload.py
index d575dc82f..9f8188a83 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_nic_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_nic_payload.py
@@ -37,7 +37,7 @@ class UpdateNicPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     nic_security: Optional[StrictBool] = Field(
@@ -56,8 +56,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_security_group_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_security_group_payload.py
index 4613dfc7e..457a2ff0d 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_security_group_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_security_group_payload.py
@@ -35,7 +35,7 @@ class UpdateSecurityGroupPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     __properties: ClassVar[List[str]] = ["description", "labels", "name"]
@@ -46,8 +46,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_server_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_server_payload.py
index aa9f10ecf..83046e060 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_server_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_server_payload.py
@@ -32,10 +32,14 @@ class UpdateServerPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
+    metadata: Optional[Dict[str, Any]] = Field(
+        default=None,
+        description="Object that represents the metadata of an object. Regex for keys: `^[a-zA-Z0-9-_:. ]{1,255}$`. Regex for values: `^.{0,255}$`.",
+    )
     name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
         default=None, description="The name for a Server."
     )
-    __properties: ClassVar[List[str]] = ["labels", "name"]
+    __properties: ClassVar[List[str]] = ["labels", "metadata", "name"]
 
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
@@ -43,8 +47,13 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(
+            r"^(([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$",
+            value,
+        ):
+            raise ValueError(
+                r"must validate the regular expression /^(([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$/"
+            )
         return value
 
     model_config = ConfigDict(
@@ -95,5 +104,7 @@ 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({"labels": obj.get("labels"), "name": obj.get("name")})
+        _obj = cls.model_validate(
+            {"labels": obj.get("labels"), "metadata": obj.get("metadata"), "name": obj.get("name")}
+        )
         return _obj
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_snapshot_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_snapshot_payload.py
index 3b53d5434..54abfd30c 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_snapshot_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_snapshot_payload.py
@@ -32,7 +32,7 @@ class UpdateSnapshotPayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     __properties: ClassVar[List[str]] = ["labels", "name"]
@@ -43,8 +43,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_virtual_ip_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_virtual_ip_payload.py
index 207fdb179..d40849f29 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_virtual_ip_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_virtual_ip_payload.py
@@ -35,7 +35,7 @@ class UpdateVirtualIPPayload(BaseModel):
     members: Optional[List[Annotated[str, Field(min_length=36, strict=True, max_length=36)]]] = Field(
         default=None, description="A list of UUIDs."
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     __properties: ClassVar[List[str]] = ["labels", "members", "name"]
@@ -46,8 +46,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/update_volume_payload.py b/services/iaasalpha/src/stackit/iaasalpha/models/update_volume_payload.py
index f524ac2e2..fbf77b35a 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/update_volume_payload.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/update_volume_payload.py
@@ -39,7 +39,7 @@ class UpdateVolumePayload(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     __properties: ClassVar[List[str]] = ["bootable", "description", "imageConfig", "labels", "name"]
@@ -50,8 +50,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/virtual_ip.py b/services/iaasalpha/src/stackit/iaasalpha/models/virtual_ip.py
index 606ee500e..0049ccba1 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/virtual_ip.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/virtual_ip.py
@@ -41,7 +41,7 @@ class VirtualIp(BaseModel):
     members: Optional[List[Annotated[str, Field(min_length=36, strict=True, max_length=36)]]] = Field(
         default=None, description="A list of UUIDs."
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
     network: Optional[Annotated[str, Field(min_length=36, strict=True, max_length=36)]] = Field(
@@ -86,8 +86,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("network")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/volume.py b/services/iaasalpha/src/stackit/iaasalpha/models/volume.py
index 108cc2eca..18809e39e 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/volume.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/volume.py
@@ -58,10 +58,10 @@ class Volume(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    name: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None, description="The name for a General Object. Matches Names and also UUIDs."
     )
-    performance_class: Optional[Annotated[str, Field(strict=True, max_length=63)]] = Field(
+    performance_class: Optional[Annotated[str, Field(strict=True, max_length=127)]] = Field(
         default=None,
         description="The name for a General Object. Matches Names and also UUIDs.",
         alias="performanceClass",
@@ -113,8 +113,8 @@ def name_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("performance_class")
@@ -123,8 +123,8 @@ def performance_class_validate_regular_expression(cls, value):
         if value is None:
             return value
 
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     @field_validator("server_id")
diff --git a/services/iaasalpha/src/stackit/iaasalpha/models/volume_performance_class.py b/services/iaasalpha/src/stackit/iaasalpha/models/volume_performance_class.py
index e734ac46b..cc335aad8 100644
--- a/services/iaasalpha/src/stackit/iaasalpha/models/volume_performance_class.py
+++ b/services/iaasalpha/src/stackit/iaasalpha/models/volume_performance_class.py
@@ -36,7 +36,7 @@ class VolumePerformanceClass(BaseModel):
         default=None,
         description="Object that represents the labels of an object. Regex for keys: `^[a-z]((-|_|[a-z0-9])){0,62}$`. Regex for values: `^(-|_|[a-z0-9]){0,63}$`.",
     )
-    name: Annotated[str, Field(strict=True, max_length=63)] = Field(
+    name: Annotated[str, Field(strict=True, max_length=127)] = Field(
         description="The name for a General Object. Matches Names and also UUIDs."
     )
     throughput: Optional[StrictInt] = Field(default=None, description="Throughput in Megabyte per second.")
@@ -45,8 +45,8 @@ class VolumePerformanceClass(BaseModel):
     @field_validator("name")
     def name_validate_regular_expression(cls, value):
         """Validates the regular expression"""
-        if not re.match(r"^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$", value):
-            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+((-|_|\s|\.)[A-Za-z0-9]+)*$/")
+        if not re.match(r"^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$", value):
+            raise ValueError(r"must validate the regular expression /^[A-Za-z0-9]+([ \/._-]*[A-Za-z0-9]+)*$/")
         return value
 
     model_config = ConfigDict(