diff --git a/pkg/resource/db_cluster/delta.go b/pkg/resource/db_cluster/delta.go
index 7aefd8a..47c46b6 100644
--- a/pkg/resource/db_cluster/delta.go
+++ b/pkg/resource/db_cluster/delta.go
@@ -45,6 +45,10 @@ func newResourceDelta(
 	}
 	compareTags(delta, a, b)
 
+	// Handle case where auto update minor version is true
+	// DBCluster Engine Version is major version and RDS Cluster Version is major and minor
+	reconcileDBClusterEngineVersion(a, b)
+
 	// Handle special case for StorageType field for Aurora engines
 	// When StorageType is set to "aurora" (default), the API doesn't return it
 
@@ -147,7 +151,9 @@ func newResourceDelta(
 		}
 	}
 	if ackcompare.HasNilDifference(a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode) {
-		delta.Add("Spec.DatabaseInsightsMode", a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode)
+		if a.ko.Spec.DatabaseInsightsMode != nil {
+			delta.Add("Spec.DatabaseInsightsMode", a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode)
+		}
 	} else if a.ko.Spec.DatabaseInsightsMode != nil && b.ko.Spec.DatabaseInsightsMode != nil {
 		if *a.ko.Spec.DatabaseInsightsMode != *b.ko.Spec.DatabaseInsightsMode {
 			delta.Add("Spec.DatabaseInsightsMode", a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode)
diff --git a/pkg/resource/db_cluster/hooks.go b/pkg/resource/db_cluster/hooks.go
index 10194bc..ead135b 100644
--- a/pkg/resource/db_cluster/hooks.go
+++ b/pkg/resource/db_cluster/hooks.go
@@ -17,6 +17,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"strings"
 
 	svcapitypes "github.com/aws-controllers-k8s/rds-controller/apis/v1alpha1"
 	"github.com/aws-controllers-k8s/runtime/apis/core/v1alpha1"
@@ -400,3 +401,19 @@ func setDeleteDBClusterInput(
 	input.DeleteAutomatedBackups = params.DeleteAutomatedBackup
 	return nil
 }
+
+// RDS will choose preferred engine minor version if only
+// engine major version is provided and controller should not
+// treat them as different, such as spec has 14, status has 14.1
+// controller should treat them as same
+func reconcileDBClusterEngineVersion(
+	a *resource,
+	b *resource,
+) {
+	if a != nil && b != nil &&
+		a.ko.Spec.EngineVersion != nil && b.ko.Spec.EngineVersion != nil &&
+		strings.HasPrefix(*b.ko.Spec.EngineVersion, *a.ko.Spec.EngineVersion) &&
+		b.ko.Spec.AutoMinorVersionUpgrade != nil && *b.ko.Spec.AutoMinorVersionUpgrade {
+		a.ko.Spec.EngineVersion = b.ko.Spec.EngineVersion
+	}
+}
diff --git a/pkg/resource/db_instance/delta.go b/pkg/resource/db_instance/delta.go
index c70f4ae..978590c 100644
--- a/pkg/resource/db_instance/delta.go
+++ b/pkg/resource/db_instance/delta.go
@@ -202,7 +202,9 @@ func newResourceDelta(
 		delta.Add("Spec.DBSubnetGroupRef", a.ko.Spec.DBSubnetGroupRef, b.ko.Spec.DBSubnetGroupRef)
 	}
 	if ackcompare.HasNilDifference(a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode) {
-		delta.Add("Spec.DatabaseInsightsMode", a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode)
+		if a.ko.Spec.DatabaseInsightsMode != nil {
+			delta.Add("Spec.DatabaseInsightsMode", a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode)
+		}
 	} else if a.ko.Spec.DatabaseInsightsMode != nil && b.ko.Spec.DatabaseInsightsMode != nil {
 		if *a.ko.Spec.DatabaseInsightsMode != *b.ko.Spec.DatabaseInsightsMode {
 			delta.Add("Spec.DatabaseInsightsMode", a.ko.Spec.DatabaseInsightsMode, b.ko.Spec.DatabaseInsightsMode)