diff --git a/pkg/acloudapi/admin_scheduledclusterupgrades.go b/pkg/acloudapi/admin_scheduledclusterupgrades.go
index 6bccbaf..7e2d184 100644
--- a/pkg/acloudapi/admin_scheduledclusterupgrades.go
+++ b/pkg/acloudapi/admin_scheduledclusterupgrades.go
@@ -57,7 +57,7 @@ func (c *adminClientImpl) UpdateScheduledClusterUpgrade(ctx context.Context, req
 		SetContext(ctx).
 		SetResult(&scheduledClusterUpgrade).
 		SetBody(&request).
-		Put(fmt.Sprintf("/admin/v1/scheduled-cluster-upgrades/%s", request.Identity))
+		Patch(fmt.Sprintf("/admin/v1/scheduled-cluster-upgrades/%s", request.Identity))
 	if err := c.CheckResponse(response, err); err != nil {
 		return nil, err
 	}
diff --git a/pkg/acloudapi/apitypes.go b/pkg/acloudapi/apitypes.go
index 30d7e84..45e4707 100644
--- a/pkg/acloudapi/apitypes.go
+++ b/pkg/acloudapi/apitypes.go
@@ -388,21 +388,29 @@ type SilenceMatcher struct {
 }
 
 type ScheduledClusterUpgrade struct {
-	Identity           string                        `json:"identity" yaml:"Identity"`
-	ClusterIdentity    string                        `json:"clusterIdentity" yaml:"ClusterIdentity"`
-	CreatedAt          time.Time                     `json:"createdAt" yaml:"CreatedAt"`
-	ModifiedAt         time.Time                     `json:"modifiedAt" yaml:"ModifiedAt"`
-	WindowStart        time.Time                     `json:"windowStart" yaml:"WindowStart"`
-	WindowEnd          time.Time                     `json:"windowEnd" yaml:"WindowEnd"`
-	FromClusterVersion string                        `json:"fromClusterVersion" yaml:"FromClusterVersion"`
-	ToClusterVersion   string                        `json:"toClusterVersion" yaml:"ToClusterVersion"`
-	Status             ScheduledClusterUpgradeStatus `json:"status" yaml:"Status"`
-	Reason             string                        `json:"reason" yaml:"Reason"`
+	Identity                  string                        `json:"identity" yaml:"Identity"`
+	ClusterIdentity           string                        `json:"clusterIdentity" yaml:"ClusterIdentity"`
+	CreatedAt                 time.Time                     `json:"createdAt" yaml:"CreatedAt"`
+	ModifiedAt                time.Time                     `json:"modifiedAt" yaml:"ModifiedAt"`
+	WindowStart               time.Time                     `json:"windowStart" yaml:"WindowStart"`
+	WindowEnd                 time.Time                     `json:"windowEnd" yaml:"WindowEnd"`
+	FromClusterVersion        string                        `json:"fromClusterVersion" yaml:"FromClusterVersion"`
+	ToClusterVersion          string                        `json:"toClusterVersion" yaml:"ToClusterVersion"`
+	Status                    ScheduledClusterUpgradeStatus `json:"status" yaml:"Status"`
+	Reason                    string                        `json:"reason" yaml:"Reason"`
+	ScheduleRequestDate       time.Time                     `json:"scheduleRequestDate" yaml:"ScheduleRequestDate"`
+	IgnoreMaintenanceSchedule bool                          `json:"ignoreMaintenanceSchedule" yaml:"IgnoreMaintenanceSchedule"`
 }
 
 type ScheduledClusterUpgradeStatus string
 
 const (
+	// Requested represents the status where a cluster upgrade
+	// has been explicitly requested but not yet scheduled.
+	// This status is used to indicate that a new scheduled
+	// cluster upgrade has been initiated by the user or system.
+	Requested ScheduledClusterUpgradeStatus = "REQUESTED"
+
 	// Scheduled indicates that this cluster upgrade has been scheduled
 	// and is pending execution.
 	Scheduled ScheduledClusterUpgradeStatus = "SCHEDULED"
@@ -418,10 +426,6 @@ const (
 	// Succeeded indicates that the cluster upgrade has been completed successfully.
 	Succeeded ScheduledClusterUpgradeStatus = "SUCCEEDED"
 
-	// Skipped indicates that this version of the cluster upgrade has been skipped.
-	// The automatic upgrade process will not attempt to upgrade to a skipped version.
-	Skipped ScheduledClusterUpgradeStatus = "SKIPPED"
-
 	// Superseded means that this scheduled cluster upgrade has been superseded
 	// due to external factors, such as a change in the update channel version
 	// or a change in the cluster's status.
@@ -445,9 +449,12 @@ type CreateScheduledClusterUpgradeRequest struct {
 }
 
 type UpdateScheduledClusterUpgradeRequest struct {
-	Identity string                        `json:"identity"`
-	Status   ScheduledClusterUpgradeStatus `json:"status"`
-	Reason   string                        `json:"reason" yaml:"Reason"`
+	Identity    string                        `json:"identity"`
+	Status      ScheduledClusterUpgradeStatus `json:"status,omitempty"`
+	Reason      string                        `json:"reason,omitempty"`
+	WindowStart *time.Time                    `json:"windowStart,omitempty"`
+	WindowEnd   *time.Time                    `json:"windowEnd,omitempty"`
+	Version     string                        `json:"version,omitempty"`
 }
 
 type ListScheduledClusterUpgradesOpts struct {