diff --git a/services/postgresflex/model_clone_instance_overrides.go b/services/postgresflex/model_clone_instance_overrides.go
index de82248c3..dcbc8495d 100644
--- a/services/postgresflex/model_clone_instance_overrides.go
+++ b/services/postgresflex/model_clone_instance_overrides.go
@@ -103,7 +103,8 @@ func setCloneInstanceOverridesGetSizeAttributeType(arg *CloneInstanceOverridesGe
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 type CloneInstanceOverrides struct {
 	// The storage class for the storage.
-	Class CloneInstanceOverridesGetClassAttributeType `json:"class,omitempty"`
+	// REQUIRED
+	Class CloneInstanceOverridesGetClassAttributeType `json:"class" required:"true"`
 	// The name of the cloned instance. If not provided, the default naming behavior of appending '-clone' to the source instance name is used.
 	Name CloneInstanceOverridesGetNameAttributeType `json:"name,omitempty"`
 	// The storage size in Gigabytes.
@@ -119,8 +120,9 @@ type _CloneInstanceOverrides CloneInstanceOverrides
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-func NewCloneInstanceOverrides(size CloneInstanceOverridesGetSizeArgType) *CloneInstanceOverrides {
+func NewCloneInstanceOverrides(class CloneInstanceOverridesGetClassArgType, size CloneInstanceOverridesGetSizeArgType) *CloneInstanceOverrides {
 	this := CloneInstanceOverrides{}
+	setCloneInstanceOverridesGetClassAttributeType(&this.Class, class)
 	setCloneInstanceOverridesGetSizeAttributeType(&this.Size, size)
 	return &this
 }
@@ -134,28 +136,21 @@ func NewCloneInstanceOverridesWithDefaults() *CloneInstanceOverrides {
 	return &this
 }
 
-// GetClass returns the Class field value if set, zero value otherwise.
+// GetClass returns the Class field value
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-func (o *CloneInstanceOverrides) GetClass() (res CloneInstanceOverridesGetClassRetType) {
-	res, _ = o.GetClassOk()
-	return
+func (o *CloneInstanceOverrides) GetClass() (ret CloneInstanceOverridesGetClassRetType) {
+	ret, _ = o.GetClassOk()
+	return ret
 }
 
-// GetClassOk returns a tuple with the Class field value if set, nil otherwise
+// GetClassOk returns a tuple with the Class field value
 // and a boolean to check if the value has been set.
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *CloneInstanceOverrides) GetClassOk() (ret CloneInstanceOverridesGetClassRetType, ok bool) {
 	return getCloneInstanceOverridesGetClassAttributeTypeOk(o.Class)
 }
 
-// HasClass returns a boolean if a field has been set.
-// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-func (o *CloneInstanceOverrides) HasClass() bool {
-	_, ok := o.GetClassOk()
-	return ok
-}
-
-// SetClass gets a reference to the given string and assigns it to the Class field.
+// SetClass sets field value
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *CloneInstanceOverrides) SetClass(v CloneInstanceOverridesGetClassRetType) {
 	setCloneInstanceOverridesGetClassAttributeType(&o.Class, v)
diff --git a/services/postgresflex/model_storage_create.go b/services/postgresflex/model_storage_create.go
index eac3db97e..1529885e4 100644
--- a/services/postgresflex/model_storage_create.go
+++ b/services/postgresflex/model_storage_create.go
@@ -76,7 +76,8 @@ func setStorageCreateGetSizeAttributeType(arg *StorageCreateGetSizeAttributeType
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 type StorageCreate struct {
 	// The storage class for the storage.
-	Class StorageCreateGetClassAttributeType `json:"class,omitempty"`
+	// REQUIRED
+	Class StorageCreateGetClassAttributeType `json:"class" required:"true"`
 	// The storage size in Gigabytes.
 	// REQUIRED
 	Size StorageCreateGetSizeAttributeType `json:"size" required:"true"`
@@ -90,8 +91,9 @@ type _StorageCreate StorageCreate
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-func NewStorageCreate(size StorageCreateGetSizeArgType) *StorageCreate {
+func NewStorageCreate(class StorageCreateGetClassArgType, size StorageCreateGetSizeArgType) *StorageCreate {
 	this := StorageCreate{}
+	setStorageCreateGetClassAttributeType(&this.Class, class)
 	setStorageCreateGetSizeAttributeType(&this.Size, size)
 	return &this
 }
@@ -105,28 +107,21 @@ func NewStorageCreateWithDefaults() *StorageCreate {
 	return &this
 }
 
-// GetClass returns the Class field value if set, zero value otherwise.
+// GetClass returns the Class field value
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-func (o *StorageCreate) GetClass() (res StorageCreateGetClassRetType) {
-	res, _ = o.GetClassOk()
-	return
+func (o *StorageCreate) GetClass() (ret StorageCreateGetClassRetType) {
+	ret, _ = o.GetClassOk()
+	return ret
 }
 
-// GetClassOk returns a tuple with the Class field value if set, nil otherwise
+// GetClassOk returns a tuple with the Class field value
 // and a boolean to check if the value has been set.
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *StorageCreate) GetClassOk() (ret StorageCreateGetClassRetType, ok bool) {
 	return getStorageCreateGetClassAttributeTypeOk(o.Class)
 }
 
-// HasClass returns a boolean if a field has been set.
-// Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
-func (o *StorageCreate) HasClass() bool {
-	_, ok := o.GetClassOk()
-	return ok
-}
-
-// SetClass gets a reference to the given string and assigns it to the Class field.
+// SetClass sets field value
 // Deprecated: Will be removed after 2026-09-30. Move to the packages generated for each available API version instead
 func (o *StorageCreate) SetClass(v StorageCreateGetClassRetType) {
 	setStorageCreateGetClassAttributeType(&o.Class, v)
diff --git a/services/postgresflex/oas_commit b/services/postgresflex/oas_commit
index 5be2ed399..c2d5477e1 100644
--- a/services/postgresflex/oas_commit
+++ b/services/postgresflex/oas_commit
@@ -1 +1 @@
-3743740fd64567e45d0d0136ba9002f4f3c5e495
+72f3b665150d5f27cb0acf9a30bf8645b1dcea9e
diff --git a/services/postgresflex/v1api/client.go b/services/postgresflex/v1api/client.go
index bdaf73ab8..f1e05d5ac 100644
--- a/services/postgresflex/v1api/client.go
+++ b/services/postgresflex/v1api/client.go
@@ -462,6 +462,15 @@ func (c *APIClient) decode(v interface{}, b []byte, contentType string) (err err
 		*s = string(b)
 		return nil
 	}
+	if r, ok := v.(*io.Reader); ok {
+		*r = bytes.NewReader(b)
+		return nil
+	}
+	// Must stay before the JSON branch: json.Unmarshal would base64-decode into *[]byte.
+	if p, ok := v.(*[]byte); ok {
+		*p = b
+		return nil
+	}
 	if f, ok := v.(*os.File); ok {
 		f, err = os.CreateTemp("", "HttpClientFile")
 		if err != nil {
diff --git a/services/postgresflex/v2api/client.go b/services/postgresflex/v2api/client.go
index 1c627f749..f4bffb7fa 100644
--- a/services/postgresflex/v2api/client.go
+++ b/services/postgresflex/v2api/client.go
@@ -462,6 +462,15 @@ func (c *APIClient) decode(v interface{}, b []byte, contentType string) (err err
 		*s = string(b)
 		return nil
 	}
+	if r, ok := v.(*io.Reader); ok {
+		*r = bytes.NewReader(b)
+		return nil
+	}
+	// Must stay before the JSON branch: json.Unmarshal would base64-decode into *[]byte.
+	if p, ok := v.(*[]byte); ok {
+		*p = b
+		return nil
+	}
 	if f, ok := v.(*os.File); ok {
 		f, err = os.CreateTemp("", "HttpClientFile")
 		if err != nil {
diff --git a/services/postgresflex/v3alpha1api/client.go b/services/postgresflex/v3alpha1api/client.go
index 897fcaba1..9f7918a19 100644
--- a/services/postgresflex/v3alpha1api/client.go
+++ b/services/postgresflex/v3alpha1api/client.go
@@ -462,6 +462,15 @@ func (c *APIClient) decode(v interface{}, b []byte, contentType string) (err err
 		*s = string(b)
 		return nil
 	}
+	if r, ok := v.(*io.Reader); ok {
+		*r = bytes.NewReader(b)
+		return nil
+	}
+	// Must stay before the JSON branch: json.Unmarshal would base64-decode into *[]byte.
+	if p, ok := v.(*[]byte); ok {
+		*p = b
+		return nil
+	}
 	if f, ok := v.(*os.File); ok {
 		f, err = os.CreateTemp("", "HttpClientFile")
 		if err != nil {
diff --git a/services/postgresflex/v3alpha1api/model_create_instance_request_payload.go b/services/postgresflex/v3alpha1api/model_create_instance_request_payload.go
index f6934190d..3011fe21d 100644
--- a/services/postgresflex/v3alpha1api/model_create_instance_request_payload.go
+++ b/services/postgresflex/v3alpha1api/model_create_instance_request_payload.go
@@ -27,7 +27,7 @@ type CreateInstanceRequestPayload struct {
 	// The id of the instance flavor.
 	FlavorId string `json:"flavorId"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string                `json:"name"`
 	Network InstanceNetworkCreate `json:"network"`
@@ -148,9 +148,9 @@ func (o *CreateInstanceRequestPayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *CreateInstanceRequestPayload) GetLabels() map[string]string {
+func (o *CreateInstanceRequestPayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -158,7 +158,7 @@ func (o *CreateInstanceRequestPayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *CreateInstanceRequestPayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *CreateInstanceRequestPayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -174,8 +174,8 @@ func (o *CreateInstanceRequestPayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *CreateInstanceRequestPayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *CreateInstanceRequestPayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3alpha1api/model_get_instance_response.go b/services/postgresflex/v3alpha1api/model_get_instance_response.go
index 4c0b1589b..a416f1560 100644
--- a/services/postgresflex/v3alpha1api/model_get_instance_response.go
+++ b/services/postgresflex/v3alpha1api/model_get_instance_response.go
@@ -34,7 +34,7 @@ type GetInstanceResponse struct {
 	// Whether the instance can be deleted or not.
 	IsDeletable bool `json:"isDeletable"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string          `json:"name"`
 	Network InstanceNetwork `json:"network"`
@@ -267,9 +267,9 @@ func (o *GetInstanceResponse) SetIsDeletable(v bool) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *GetInstanceResponse) GetLabels() map[string]string {
+func (o *GetInstanceResponse) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -277,7 +277,7 @@ func (o *GetInstanceResponse) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *GetInstanceResponse) GetLabelsOk() (*map[string]string, bool) {
+func (o *GetInstanceResponse) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -293,8 +293,8 @@ func (o *GetInstanceResponse) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *GetInstanceResponse) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *GetInstanceResponse) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3alpha1api/model_update_instance_partially_request_payload.go b/services/postgresflex/v3alpha1api/model_update_instance_partially_request_payload.go
index 3229a4019..0cf178780 100644
--- a/services/postgresflex/v3alpha1api/model_update_instance_partially_request_payload.go
+++ b/services/postgresflex/v3alpha1api/model_update_instance_partially_request_payload.go
@@ -25,7 +25,7 @@ type UpdateInstancePartiallyRequestPayload struct {
 	// The id of the instance flavor.
 	FlavorId *string `json:"flavorId,omitempty"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    *string             `json:"name,omitempty"`
 	Network *InstanceNetworkOpt `json:"network,omitempty"`
@@ -123,9 +123,9 @@ func (o *UpdateInstancePartiallyRequestPayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *UpdateInstancePartiallyRequestPayload) GetLabels() map[string]string {
+func (o *UpdateInstancePartiallyRequestPayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -133,7 +133,7 @@ func (o *UpdateInstancePartiallyRequestPayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *UpdateInstancePartiallyRequestPayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *UpdateInstancePartiallyRequestPayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -149,8 +149,8 @@ func (o *UpdateInstancePartiallyRequestPayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *UpdateInstancePartiallyRequestPayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *UpdateInstancePartiallyRequestPayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3alpha1api/model_update_instance_request_payload.go b/services/postgresflex/v3alpha1api/model_update_instance_request_payload.go
index 44596aeb4..b1b83e257 100644
--- a/services/postgresflex/v3alpha1api/model_update_instance_request_payload.go
+++ b/services/postgresflex/v3alpha1api/model_update_instance_request_payload.go
@@ -26,7 +26,7 @@ type UpdateInstanceRequestPayload struct {
 	// The id of the instance flavor.
 	FlavorId string `json:"flavorId"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string                `json:"name"`
 	Network InstanceNetworkUpdate `json:"network"`
@@ -115,9 +115,9 @@ func (o *UpdateInstanceRequestPayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *UpdateInstanceRequestPayload) GetLabels() map[string]string {
+func (o *UpdateInstanceRequestPayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -125,7 +125,7 @@ func (o *UpdateInstanceRequestPayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *UpdateInstanceRequestPayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *UpdateInstanceRequestPayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -141,8 +141,8 @@ func (o *UpdateInstanceRequestPayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *UpdateInstanceRequestPayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *UpdateInstanceRequestPayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3api/client.go b/services/postgresflex/v3api/client.go
index 7f004f9d2..65f6421da 100644
--- a/services/postgresflex/v3api/client.go
+++ b/services/postgresflex/v3api/client.go
@@ -462,6 +462,15 @@ func (c *APIClient) decode(v interface{}, b []byte, contentType string) (err err
 		*s = string(b)
 		return nil
 	}
+	if r, ok := v.(*io.Reader); ok {
+		*r = bytes.NewReader(b)
+		return nil
+	}
+	// Must stay before the JSON branch: json.Unmarshal would base64-decode into *[]byte.
+	if p, ok := v.(*[]byte); ok {
+		*p = b
+		return nil
+	}
 	if f, ok := v.(*os.File); ok {
 		f, err = os.CreateTemp("", "HttpClientFile")
 		if err != nil {
diff --git a/services/postgresflex/v3api/model_clone_instance_overrides.go b/services/postgresflex/v3api/model_clone_instance_overrides.go
index 546f20042..6943d5bd5 100644
--- a/services/postgresflex/v3api/model_clone_instance_overrides.go
+++ b/services/postgresflex/v3api/model_clone_instance_overrides.go
@@ -22,7 +22,7 @@ var _ MappedNullable = &CloneInstanceOverrides{}
 // CloneInstanceOverrides struct for CloneInstanceOverrides
 type CloneInstanceOverrides struct {
 	// The storage class for the storage.
-	Class *string `json:"class,omitempty"`
+	Class string `json:"class"`
 	// The name of the cloned instance. If not provided, the default naming behavior of appending '-clone' to the source instance name is used.
 	Name *string `json:"name,omitempty"`
 	// The storage size in Gigabytes.
@@ -36,8 +36,9 @@ type _CloneInstanceOverrides CloneInstanceOverrides
 // This constructor will assign default values to properties that have it defined,
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
-func NewCloneInstanceOverrides(size int64) *CloneInstanceOverrides {
+func NewCloneInstanceOverrides(class string, size int64) *CloneInstanceOverrides {
 	this := CloneInstanceOverrides{}
+	this.Class = class
 	this.Size = size
 	return &this
 }
@@ -50,36 +51,28 @@ func NewCloneInstanceOverridesWithDefaults() *CloneInstanceOverrides {
 	return &this
 }
 
-// GetClass returns the Class field value if set, zero value otherwise.
+// GetClass returns the Class field value
 func (o *CloneInstanceOverrides) GetClass() string {
-	if o == nil || IsNil(o.Class) {
+	if o == nil {
 		var ret string
 		return ret
 	}
-	return *o.Class
+
+	return o.Class
 }
 
-// GetClassOk returns a tuple with the Class field value if set, nil otherwise
+// GetClassOk returns a tuple with the Class field value
 // and a boolean to check if the value has been set.
 func (o *CloneInstanceOverrides) GetClassOk() (*string, bool) {
-	if o == nil || IsNil(o.Class) {
+	if o == nil {
 		return nil, false
 	}
-	return o.Class, true
-}
-
-// HasClass returns a boolean if a field has been set.
-func (o *CloneInstanceOverrides) HasClass() bool {
-	if o != nil && !IsNil(o.Class) {
-		return true
-	}
-
-	return false
+	return &o.Class, true
 }
 
-// SetClass gets a reference to the given string and assigns it to the Class field.
+// SetClass sets field value
 func (o *CloneInstanceOverrides) SetClass(v string) {
-	o.Class = &v
+	o.Class = v
 }
 
 // GetName returns the Name field value if set, zero value otherwise.
@@ -148,9 +141,7 @@ func (o CloneInstanceOverrides) MarshalJSON() ([]byte, error) {
 
 func (o CloneInstanceOverrides) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
-	if !IsNil(o.Class) {
-		toSerialize["class"] = o.Class
-	}
+	toSerialize["class"] = o.Class
 	if !IsNil(o.Name) {
 		toSerialize["name"] = o.Name
 	}
@@ -168,6 +159,7 @@ func (o *CloneInstanceOverrides) UnmarshalJSON(data []byte) (err error) {
 	// by unmarshalling the object into a generic map with string keys and checking
 	// that every required field exists as a key in the generic map.
 	requiredProperties := []string{
+		"class",
 		"size",
 	}
 
diff --git a/services/postgresflex/v3api/model_create_instance_payload.go b/services/postgresflex/v3api/model_create_instance_payload.go
index c12a9d94e..46e653828 100644
--- a/services/postgresflex/v3api/model_create_instance_payload.go
+++ b/services/postgresflex/v3api/model_create_instance_payload.go
@@ -27,7 +27,7 @@ type CreateInstancePayload struct {
 	// The id of the instance flavor.
 	FlavorId string `json:"flavorId"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string                `json:"name"`
 	Network InstanceNetworkCreate `json:"network"`
@@ -146,9 +146,9 @@ func (o *CreateInstancePayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *CreateInstancePayload) GetLabels() map[string]string {
+func (o *CreateInstancePayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -156,7 +156,7 @@ func (o *CreateInstancePayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *CreateInstancePayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *CreateInstancePayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -172,8 +172,8 @@ func (o *CreateInstancePayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *CreateInstancePayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *CreateInstancePayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3api/model_get_instance_response.go b/services/postgresflex/v3api/model_get_instance_response.go
index d9d872bed..a6c458e00 100644
--- a/services/postgresflex/v3api/model_get_instance_response.go
+++ b/services/postgresflex/v3api/model_get_instance_response.go
@@ -32,7 +32,7 @@ type GetInstanceResponse struct {
 	// Whether the instance can be deleted or not.
 	IsDeletable bool `json:"isDeletable"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string          `json:"name"`
 	Network InstanceNetwork `json:"network"`
@@ -228,9 +228,9 @@ func (o *GetInstanceResponse) SetIsDeletable(v bool) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *GetInstanceResponse) GetLabels() map[string]string {
+func (o *GetInstanceResponse) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -238,7 +238,7 @@ func (o *GetInstanceResponse) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *GetInstanceResponse) GetLabelsOk() (*map[string]string, bool) {
+func (o *GetInstanceResponse) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -254,8 +254,8 @@ func (o *GetInstanceResponse) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *GetInstanceResponse) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *GetInstanceResponse) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3api/model_partial_update_instance_payload.go b/services/postgresflex/v3api/model_partial_update_instance_payload.go
index 47a25a964..81303bf06 100644
--- a/services/postgresflex/v3api/model_partial_update_instance_payload.go
+++ b/services/postgresflex/v3api/model_partial_update_instance_payload.go
@@ -25,7 +25,7 @@ type PartialUpdateInstancePayload struct {
 	// The id of the instance flavor.
 	FlavorId *string `json:"flavorId,omitempty"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    *string             `json:"name,omitempty"`
 	Network *InstanceNetworkOpt `json:"network,omitempty"`
@@ -121,9 +121,9 @@ func (o *PartialUpdateInstancePayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *PartialUpdateInstancePayload) GetLabels() map[string]string {
+func (o *PartialUpdateInstancePayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -131,7 +131,7 @@ func (o *PartialUpdateInstancePayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *PartialUpdateInstancePayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *PartialUpdateInstancePayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -147,8 +147,8 @@ func (o *PartialUpdateInstancePayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *PartialUpdateInstancePayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *PartialUpdateInstancePayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3api/model_storage_create.go b/services/postgresflex/v3api/model_storage_create.go
index 810220b65..b8e084405 100644
--- a/services/postgresflex/v3api/model_storage_create.go
+++ b/services/postgresflex/v3api/model_storage_create.go
@@ -22,7 +22,7 @@ var _ MappedNullable = &StorageCreate{}
 // StorageCreate The object containing information about the storage size and class.
 type StorageCreate struct {
 	// The storage class for the storage.
-	Class *string `json:"class,omitempty"`
+	Class string `json:"class"`
 	// The storage size in Gigabytes.
 	Size                 int64 `json:"size"`
 	AdditionalProperties map[string]interface{}
@@ -34,8 +34,9 @@ type _StorageCreate StorageCreate
 // This constructor will assign default values to properties that have it defined,
 // and makes sure properties required by API are set, but the set of arguments
 // will change when the set of required properties is changed
-func NewStorageCreate(size int64) *StorageCreate {
+func NewStorageCreate(class string, size int64) *StorageCreate {
 	this := StorageCreate{}
+	this.Class = class
 	this.Size = size
 	return &this
 }
@@ -48,36 +49,28 @@ func NewStorageCreateWithDefaults() *StorageCreate {
 	return &this
 }
 
-// GetClass returns the Class field value if set, zero value otherwise.
+// GetClass returns the Class field value
 func (o *StorageCreate) GetClass() string {
-	if o == nil || IsNil(o.Class) {
+	if o == nil {
 		var ret string
 		return ret
 	}
-	return *o.Class
+
+	return o.Class
 }
 
-// GetClassOk returns a tuple with the Class field value if set, nil otherwise
+// GetClassOk returns a tuple with the Class field value
 // and a boolean to check if the value has been set.
 func (o *StorageCreate) GetClassOk() (*string, bool) {
-	if o == nil || IsNil(o.Class) {
+	if o == nil {
 		return nil, false
 	}
-	return o.Class, true
-}
-
-// HasClass returns a boolean if a field has been set.
-func (o *StorageCreate) HasClass() bool {
-	if o != nil && !IsNil(o.Class) {
-		return true
-	}
-
-	return false
+	return &o.Class, true
 }
 
-// SetClass gets a reference to the given string and assigns it to the Class field.
+// SetClass sets field value
 func (o *StorageCreate) SetClass(v string) {
-	o.Class = &v
+	o.Class = v
 }
 
 // GetSize returns the Size field value
@@ -114,9 +107,7 @@ func (o StorageCreate) MarshalJSON() ([]byte, error) {
 
 func (o StorageCreate) ToMap() (map[string]interface{}, error) {
 	toSerialize := map[string]interface{}{}
-	if !IsNil(o.Class) {
-		toSerialize["class"] = o.Class
-	}
+	toSerialize["class"] = o.Class
 	toSerialize["size"] = o.Size
 
 	for key, value := range o.AdditionalProperties {
@@ -131,6 +122,7 @@ func (o *StorageCreate) UnmarshalJSON(data []byte) (err error) {
 	// by unmarshalling the object into a generic map with string keys and checking
 	// that every required field exists as a key in the generic map.
 	requiredProperties := []string{
+		"class",
 		"size",
 	}
 
diff --git a/services/postgresflex/v3api/model_update_instance_payload.go b/services/postgresflex/v3api/model_update_instance_payload.go
index cf9b3d1cb..1f88528c1 100644
--- a/services/postgresflex/v3api/model_update_instance_payload.go
+++ b/services/postgresflex/v3api/model_update_instance_payload.go
@@ -26,7 +26,7 @@ type UpdateInstancePayload struct {
 	// The id of the instance flavor.
 	FlavorId string `json:"flavorId"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string                `json:"name"`
 	Network InstanceNetworkUpdate `json:"network"`
@@ -113,9 +113,9 @@ func (o *UpdateInstancePayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *UpdateInstancePayload) GetLabels() map[string]string {
+func (o *UpdateInstancePayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -123,7 +123,7 @@ func (o *UpdateInstancePayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *UpdateInstancePayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *UpdateInstancePayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -139,8 +139,8 @@ func (o *UpdateInstancePayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *UpdateInstancePayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *UpdateInstancePayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3beta1api/client.go b/services/postgresflex/v3beta1api/client.go
index 6465acf91..a07267541 100644
--- a/services/postgresflex/v3beta1api/client.go
+++ b/services/postgresflex/v3beta1api/client.go
@@ -462,6 +462,15 @@ func (c *APIClient) decode(v interface{}, b []byte, contentType string) (err err
 		*s = string(b)
 		return nil
 	}
+	if r, ok := v.(*io.Reader); ok {
+		*r = bytes.NewReader(b)
+		return nil
+	}
+	// Must stay before the JSON branch: json.Unmarshal would base64-decode into *[]byte.
+	if p, ok := v.(*[]byte); ok {
+		*p = b
+		return nil
+	}
 	if f, ok := v.(*os.File); ok {
 		f, err = os.CreateTemp("", "HttpClientFile")
 		if err != nil {
diff --git a/services/postgresflex/v3beta1api/model_create_instance_payload.go b/services/postgresflex/v3beta1api/model_create_instance_payload.go
index 1d1efb4ff..e91d1fe53 100644
--- a/services/postgresflex/v3beta1api/model_create_instance_payload.go
+++ b/services/postgresflex/v3beta1api/model_create_instance_payload.go
@@ -27,7 +27,7 @@ type CreateInstancePayload struct {
 	// The id of the instance flavor.
 	FlavorId string `json:"flavorId"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string                `json:"name"`
 	Network InstanceNetworkCreate `json:"network"`
@@ -146,9 +146,9 @@ func (o *CreateInstancePayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *CreateInstancePayload) GetLabels() map[string]string {
+func (o *CreateInstancePayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -156,7 +156,7 @@ func (o *CreateInstancePayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *CreateInstancePayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *CreateInstancePayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -172,8 +172,8 @@ func (o *CreateInstancePayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *CreateInstancePayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *CreateInstancePayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3beta1api/model_get_instance_response.go b/services/postgresflex/v3beta1api/model_get_instance_response.go
index a7e974612..e1c8a7c5d 100644
--- a/services/postgresflex/v3beta1api/model_get_instance_response.go
+++ b/services/postgresflex/v3beta1api/model_get_instance_response.go
@@ -34,7 +34,7 @@ type GetInstanceResponse struct {
 	// Whether the instance can be deleted or not.
 	IsDeletable bool `json:"isDeletable"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string          `json:"name"`
 	Network InstanceNetwork `json:"network"`
@@ -262,9 +262,9 @@ func (o *GetInstanceResponse) SetIsDeletable(v bool) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *GetInstanceResponse) GetLabels() map[string]string {
+func (o *GetInstanceResponse) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -272,7 +272,7 @@ func (o *GetInstanceResponse) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *GetInstanceResponse) GetLabelsOk() (*map[string]string, bool) {
+func (o *GetInstanceResponse) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -288,8 +288,8 @@ func (o *GetInstanceResponse) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *GetInstanceResponse) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *GetInstanceResponse) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3beta1api/model_partial_update_instance_payload.go b/services/postgresflex/v3beta1api/model_partial_update_instance_payload.go
index a7a527d5a..646f7cc0f 100644
--- a/services/postgresflex/v3beta1api/model_partial_update_instance_payload.go
+++ b/services/postgresflex/v3beta1api/model_partial_update_instance_payload.go
@@ -25,7 +25,7 @@ type PartialUpdateInstancePayload struct {
 	// The id of the instance flavor.
 	FlavorId *string `json:"flavorId,omitempty"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    *string             `json:"name,omitempty"`
 	Network *InstanceNetworkOpt `json:"network,omitempty"`
@@ -121,9 +121,9 @@ func (o *PartialUpdateInstancePayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *PartialUpdateInstancePayload) GetLabels() map[string]string {
+func (o *PartialUpdateInstancePayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -131,7 +131,7 @@ func (o *PartialUpdateInstancePayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *PartialUpdateInstancePayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *PartialUpdateInstancePayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -147,8 +147,8 @@ func (o *PartialUpdateInstancePayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *PartialUpdateInstancePayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *PartialUpdateInstancePayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }
 
diff --git a/services/postgresflex/v3beta1api/model_update_instance_payload.go b/services/postgresflex/v3beta1api/model_update_instance_payload.go
index 3358817f7..a9a8f8461 100644
--- a/services/postgresflex/v3beta1api/model_update_instance_payload.go
+++ b/services/postgresflex/v3beta1api/model_update_instance_payload.go
@@ -26,7 +26,7 @@ type UpdateInstancePayload struct {
 	// The id of the instance flavor.
 	FlavorId string `json:"flavorId"`
 	// Key-value pairs, 63 characters max, begin and end with an alphanumerical character, may contain dashes (-), underscores (_), dots (.), and alphanumerics between. Key MUST be at least 1 character. Max 64 labels Regex for keys: ^(?=.{1,63}$)([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]$ Regex for values: ^(?=.{0,63}$)(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])*$ The stackit- prefix is reserved and cannot be used for Keys.
-	Labels *map[string]string `json:"labels,omitempty"`
+	Labels *map[string]*string `json:"labels,omitempty"`
 	// The name of the instance.
 	Name    string                `json:"name"`
 	Network InstanceNetworkUpdate `json:"network"`
@@ -113,9 +113,9 @@ func (o *UpdateInstancePayload) SetFlavorId(v string) {
 }
 
 // GetLabels returns the Labels field value if set, zero value otherwise.
-func (o *UpdateInstancePayload) GetLabels() map[string]string {
+func (o *UpdateInstancePayload) GetLabels() map[string]*string {
 	if o == nil || IsNil(o.Labels) {
-		var ret map[string]string
+		var ret map[string]*string
 		return ret
 	}
 	return *o.Labels
@@ -123,7 +123,7 @@ func (o *UpdateInstancePayload) GetLabels() map[string]string {
 
 // GetLabelsOk returns a tuple with the Labels field value if set, nil otherwise
 // and a boolean to check if the value has been set.
-func (o *UpdateInstancePayload) GetLabelsOk() (*map[string]string, bool) {
+func (o *UpdateInstancePayload) GetLabelsOk() (*map[string]*string, bool) {
 	if o == nil || IsNil(o.Labels) {
 		return nil, false
 	}
@@ -139,8 +139,8 @@ func (o *UpdateInstancePayload) HasLabels() bool {
 	return false
 }
 
-// SetLabels gets a reference to the given map[string]string and assigns it to the Labels field.
-func (o *UpdateInstancePayload) SetLabels(v map[string]string) {
+// SetLabels gets a reference to the given map[string]*string and assigns it to the Labels field.
+func (o *UpdateInstancePayload) SetLabels(v map[string]*string) {
 	o.Labels = &v
 }