diff --git a/docs/book/src/cronjob-tutorial/testdata/project/api/v1/cronjob_types.go b/docs/book/src/cronjob-tutorial/testdata/project/api/v1/cronjob_types.go
index 32bbc67fb29..9db5ea28c02 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/api/v1/cronjob_types.go
+++ b/docs/book/src/cronjob-tutorial/testdata/project/api/v1/cronjob_types.go
@@ -81,6 +81,7 @@ type CronJobSpec struct {
 	// - "Forbid": forbids concurrent runs, skipping next run if previous run hasn't finished yet;
 	// - "Replace": cancels currently running job and replaces it with a new one
 	// +optional
+	// +kubebuilder:default:=Allow
 	ConcurrencyPolicy ConcurrencyPolicy `json:"concurrencyPolicy,omitempty"`
 
 	// suspend tells the controller to suspend subsequent executions, it does
@@ -89,6 +90,7 @@ type CronJobSpec struct {
 	Suspend *bool `json:"suspend,omitempty"`
 
 	// jobTemplate defines the job that will be created when executing a CronJob.
+	// +required
 	JobTemplate batchv1.JobTemplateSpec `json:"jobTemplate"`
 
 	// successfulJobsHistoryLimit defines the number of successful finished jobs to retain.
@@ -146,6 +148,9 @@ type CronJobStatus struct {
 
 	// active defines a list of pointers to currently running jobs.
 	// +optional
+	// +listType=atomic
+	// +kubebuilder:validation:MinItems=1
+	// +kubebuilder:validation:MaxItems=10
 	Active []corev1.ObjectReference `json:"active,omitempty"`
 
 	// lastScheduleTime defines when was the last time the job was successfully scheduled.
diff --git a/docs/book/src/cronjob-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml b/docs/book/src/cronjob-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml
index 905fd957564..9cb4c4c4845 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml
+++ b/docs/book/src/cronjob-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml
@@ -27,6 +27,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -3835,7 +3836,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
diff --git a/docs/book/src/cronjob-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml b/docs/book/src/cronjob-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml
index 5f95f79c736..207560caad8 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml
+++ b/docs/book/src/cronjob-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml
@@ -33,6 +33,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -3841,7 +3842,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
diff --git a/docs/book/src/cronjob-tutorial/testdata/project/dist/install.yaml b/docs/book/src/cronjob-tutorial/testdata/project/dist/install.yaml
index 7d342a5524e..8bc6ae0e7d6 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/dist/install.yaml
+++ b/docs/book/src/cronjob-tutorial/testdata/project/dist/install.yaml
@@ -35,6 +35,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -3843,7 +3844,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
diff --git a/docs/book/src/cronjob-tutorial/testdata/project/go.mod b/docs/book/src/cronjob-tutorial/testdata/project/go.mod
index 79515961cf3..cf7c5c8e132 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/go.mod
+++ b/docs/book/src/cronjob-tutorial/testdata/project/go.mod
@@ -9,6 +9,7 @@ require (
 	k8s.io/api v0.33.0
 	k8s.io/apimachinery v0.33.0
 	k8s.io/client-go v0.33.0
+	k8s.io/utils v0.0.0-20241104100929-3ea5e8cea738
 	sigs.k8s.io/controller-runtime v0.21.0
 )
 
@@ -89,7 +90,6 @@ require (
 	k8s.io/component-base v0.33.0 // indirect
 	k8s.io/klog/v2 v2.130.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20250318190949-c8a335a9a2ff // indirect
-	k8s.io/utils v0.0.0-20241104100929-3ea5e8cea738 // indirect
 	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.31.2 // indirect
 	sigs.k8s.io/json v0.0.0-20241010143419-9aa6b5e7a4b3 // indirect
 	sigs.k8s.io/randfill v1.0.0 // indirect
diff --git a/docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go b/docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go
index d3922bb5063..a52e890b74a 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go
+++ b/docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go
@@ -22,6 +22,7 @@ import (
 
 	batchv1 "tutorial.kubebuilder.io/project/api/v1"
 	// TODO (user): Add any additional imports if needed
+	"k8s.io/utils/ptr"
 )
 
 var _ = Describe("CronJob Webhook", func() {
@@ -40,8 +41,8 @@ var _ = Describe("CronJob Webhook", func() {
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*obj.Spec.SuccessfulJobsHistoryLimit = 3
@@ -51,8 +52,8 @@ var _ = Describe("CronJob Webhook", func() {
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*oldObj.Spec.SuccessfulJobsHistoryLimit = 3
@@ -95,20 +96,20 @@ var _ = Describe("CronJob Webhook", func() {
 		It("Should not overwrite fields that are already set", func() {
 			By("setting fields that would normally get a default")
 			obj.Spec.ConcurrencyPolicy = batchv1.ForbidConcurrent
-			obj.Spec.Suspend = new(bool)
-			*obj.Spec.Suspend = true
-			obj.Spec.SuccessfulJobsHistoryLimit = new(int32)
-			*obj.Spec.SuccessfulJobsHistoryLimit = 5
-			obj.Spec.FailedJobsHistoryLimit = new(int32)
-			*obj.Spec.FailedJobsHistoryLimit = 2
+			obj.Spec.Suspend = ptr.To(true)
+			obj.Spec.SuccessfulJobsHistoryLimit = ptr.To(int32(5))
+			obj.Spec.FailedJobsHistoryLimit = ptr.To(int32(2))
 
 			By("calling the Default method to apply defaults")
 			_ = defaulter.Default(ctx, obj)
 
 			By("checking that the fields were not overwritten")
 			Expect(obj.Spec.ConcurrencyPolicy).To(Equal(batchv1.ForbidConcurrent), "Expected ConcurrencyPolicy to retain its set value")
+			Expect(obj.Spec.Suspend).NotTo(BeNil())
 			Expect(*obj.Spec.Suspend).To(BeTrue(), "Expected Suspend to retain its set value")
+			Expect(obj.Spec.SuccessfulJobsHistoryLimit).NotTo(BeNil())
 			Expect(*obj.Spec.SuccessfulJobsHistoryLimit).To(Equal(int32(5)), "Expected SuccessfulJobsHistoryLimit to retain its set value")
+			Expect(obj.Spec.FailedJobsHistoryLimit).NotTo(BeNil())
 			Expect(*obj.Spec.FailedJobsHistoryLimit).To(Equal(int32(2)), "Expected FailedJobsHistoryLimit to retain its set value")
 		})
 	})
diff --git a/docs/book/src/getting-started.md b/docs/book/src/getting-started.md
index d621818b288..eb18c6d8a89 100644
--- a/docs/book/src/getting-started.md
+++ b/docs/book/src/getting-started.md
@@ -83,7 +83,9 @@ we will allow configuring the number of instances with the following:
 ```go
 type MemcachedSpec struct {
 	...
-	Size int32 `json:"size,omitempty"`
+	// +kubebuilder:validation:Minimum=0
+	// +required
+	Size *int32 `json:"size,omitempty"`
 }
 ```
 
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/api/v1/cronjob_types.go b/docs/book/src/multiversion-tutorial/testdata/project/api/v1/cronjob_types.go
index 1ba53b4963f..22b11c6ad7b 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/api/v1/cronjob_types.go
+++ b/docs/book/src/multiversion-tutorial/testdata/project/api/v1/cronjob_types.go
@@ -53,6 +53,7 @@ type CronJobSpec struct {
 	// - "Forbid": forbids concurrent runs, skipping next run if previous run hasn't finished yet;
 	// - "Replace": cancels currently running job and replaces it with a new one
 	// +optional
+	// +kubebuilder:default:=Allow
 	ConcurrencyPolicy ConcurrencyPolicy `json:"concurrencyPolicy,omitempty"`
 
 	// suspend tells the controller to suspend subsequent executions, it does
@@ -61,6 +62,7 @@ type CronJobSpec struct {
 	Suspend *bool `json:"suspend,omitempty"`
 
 	// jobTemplate defines the job that will be created when executing a CronJob.
+	// +required
 	JobTemplate batchv1.JobTemplateSpec `json:"jobTemplate"`
 
 	// successfulJobsHistoryLimit defines the number of successful finished jobs to retain.
@@ -102,6 +104,9 @@ type CronJobStatus struct {
 
 	// active defines a list of pointers to currently running jobs.
 	// +optional
+	// +listType=atomic
+	// +kubebuilder:validation:MinItems=1
+	// +kubebuilder:validation:MaxItems=10
 	Active []corev1.ObjectReference `json:"active,omitempty"`
 
 	// lastScheduleTime defines when was the last time the job was successfully scheduled.
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/api/v2/cronjob_types.go b/docs/book/src/multiversion-tutorial/testdata/project/api/v2/cronjob_types.go
index 969e64b38a9..8906086ea75 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/api/v2/cronjob_types.go
+++ b/docs/book/src/multiversion-tutorial/testdata/project/api/v2/cronjob_types.go
@@ -41,7 +41,8 @@ We'll leave our spec largely unchanged, except to change the schedule field to a
 */
 // CronJobSpec defines the desired state of CronJob
 type CronJobSpec struct {
-	// The schedule in Cron format, see https://en.wikipedia.org/wiki/Cron.
+	// schedule in Cron format, see https://en.wikipedia.org/wiki/Cron.
+	// +required
 	Schedule CronSchedule `json:"schedule"`
 
 	/*
@@ -59,6 +60,7 @@ type CronJobSpec struct {
 	// - "Forbid": forbids concurrent runs, skipping next run if previous run hasn't finished yet;
 	// - "Replace": cancels currently running job and replaces it with a new one
 	// +optional
+	// +kubebuilder:default:=Allow
 	ConcurrencyPolicy ConcurrencyPolicy `json:"concurrencyPolicy,omitempty"`
 
 	// suspend tells the controller to suspend subsequent executions, it does
@@ -67,6 +69,7 @@ type CronJobSpec struct {
 	Suspend *bool `json:"suspend,omitempty"`
 
 	// jobTemplate defines the job that will be created when executing a CronJob.
+	// +required
 	JobTemplate batchv1.JobTemplateSpec `json:"jobTemplate"`
 
 	// successfulJobsHistoryLimit defines the number of successful finished jobs to retain.
@@ -148,6 +151,9 @@ type CronJobStatus struct {
 	// Important: Run "make" to regenerate code after modifying this file
 	// active defines a list of pointers to currently running jobs.
 	// +optional
+	// +listType=atomic
+	// +kubebuilder:validation:MinItems=1
+	// +kubebuilder:validation:MaxItems=10
 	Active []corev1.ObjectReference `json:"active,omitempty"`
 
 	// lastScheduleTime defines the information when was the last time the job was successfully scheduled.
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml b/docs/book/src/multiversion-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml
index aaa06b3df9f..fd7b425e05f 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml
+++ b/docs/book/src/multiversion-tutorial/testdata/project/config/crd/bases/batch.tutorial.kubebuilder.io_cronjobs.yaml
@@ -27,6 +27,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -3835,7 +3836,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
@@ -3899,6 +3903,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -7717,7 +7722,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml b/docs/book/src/multiversion-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml
index 4a72842ddab..ca0210790ce 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml
+++ b/docs/book/src/multiversion-tutorial/testdata/project/dist/chart/templates/crd/batch.tutorial.kubebuilder.io_cronjobs.yaml
@@ -48,6 +48,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -3856,7 +3857,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
@@ -3920,6 +3924,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -7738,7 +7743,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/dist/install.yaml b/docs/book/src/multiversion-tutorial/testdata/project/dist/install.yaml
index 63469894196..ff7d1280807 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/dist/install.yaml
+++ b/docs/book/src/multiversion-tutorial/testdata/project/dist/install.yaml
@@ -46,6 +46,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -3854,7 +3855,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
@@ -3918,6 +3922,7 @@ spec:
           spec:
             properties:
               concurrencyPolicy:
+                default: Allow
                 enum:
                 - Allow
                 - Forbid
@@ -7736,7 +7741,10 @@ spec:
                       type: string
                   type: object
                   x-kubernetes-map-type: atomic
+                maxItems: 10
+                minItems: 1
                 type: array
+                x-kubernetes-list-type: atomic
               conditions:
                 items:
                   properties:
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go b/docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go
index 95cf7a2b9e9..c7983a21a63 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go
+++ b/docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook_test.go
@@ -22,6 +22,7 @@ import (
 
 	batchv1 "tutorial.kubebuilder.io/project/api/v1"
 	// TODO (user): Add any additional imports if needed
+	"k8s.io/utils/ptr"
 )
 
 var _ = Describe("CronJob Webhook", func() {
@@ -39,8 +40,8 @@ var _ = Describe("CronJob Webhook", func() {
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*obj.Spec.SuccessfulJobsHistoryLimit = 3
@@ -50,8 +51,8 @@ var _ = Describe("CronJob Webhook", func() {
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*oldObj.Spec.SuccessfulJobsHistoryLimit = 3
diff --git a/hack/docs/internal/cronjob-tutorial/api_design.go b/hack/docs/internal/cronjob-tutorial/api_design.go
index 1f66b777405..6c402edd5ba 100644
--- a/hack/docs/internal/cronjob-tutorial/api_design.go
+++ b/hack/docs/internal/cronjob-tutorial/api_design.go
@@ -67,6 +67,7 @@ const cronjobSpecStruct = `
 	// - "Forbid": forbids concurrent runs, skipping next run if previous run hasn't finished yet;
 	// - "Replace": cancels currently running job and replaces it with a new one
 	// +optional
+	// +kubebuilder:default:=Allow
 	ConcurrencyPolicy ConcurrencyPolicy` + " `" + `json:"concurrencyPolicy,omitempty"` + "`" + `
 
 	// suspend tells the controller to suspend subsequent executions, it does
@@ -75,6 +76,7 @@ const cronjobSpecStruct = `
 	Suspend *bool` + " `" + `json:"suspend,omitempty"` + "`" + `
 
 	// jobTemplate defines the job that will be created when executing a CronJob.
+	// +required
 	JobTemplate batchv1.JobTemplateSpec` + " `" + `json:"jobTemplate"` + "`" + `
 
 	// successfulJobsHistoryLimit defines the number of successful finished jobs to retain.
@@ -129,6 +131,9 @@ const cronjobList = `
 
 	// active defines a list of pointers to currently running jobs.
 	// +optional
+	// +listType=atomic
+	// +kubebuilder:validation:MinItems=1
+	// +kubebuilder:validation:MaxItems=10
 	Active []corev1.ObjectReference` + " `" + `json:"active,omitempty"` + "`" + `
 
 	// lastScheduleTime defines when was the last time the job was successfully scheduled.
diff --git a/hack/docs/internal/cronjob-tutorial/generate_cronjob.go b/hack/docs/internal/cronjob-tutorial/generate_cronjob.go
index 8d61a4cfd31..0fe2b09ba12 100644
--- a/hack/docs/internal/cronjob-tutorial/generate_cronjob.go
+++ b/hack/docs/internal/cronjob-tutorial/generate_cronjob.go
@@ -397,7 +397,13 @@ manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and Cust
 func (sp *Sample) updateWebhookTests() {
 	file := filepath.Join(sp.ctx.Dir, "internal/webhook/v1/cronjob_webhook_test.go")
 
-	err := pluginutil.ReplaceInFile(file,
+	err := pluginutil.InsertCode(file,
+		`// TODO (user): Add any additional imports if needed`,
+		`
+	"k8s.io/utils/ptr"`)
+	hackutils.CheckError("add import for webhook tests", err)
+
+	err = pluginutil.ReplaceInFile(file,
 		webhookTestCreateDefaultingFragment,
 		webhookTestCreateDefaultingReplaceFragment)
 	hackutils.CheckError("replace create defaulting test", err)
diff --git a/hack/docs/internal/cronjob-tutorial/webhook_implementation.go b/hack/docs/internal/cronjob-tutorial/webhook_implementation.go
index 950a90d4291..ec6bfdd3d53 100644
--- a/hack/docs/internal/cronjob-tutorial/webhook_implementation.go
+++ b/hack/docs/internal/cronjob-tutorial/webhook_implementation.go
@@ -217,22 +217,22 @@ const webhookTestCreateDefaultingReplaceFragment = `It("Should apply defaults wh
 		It("Should not overwrite fields that are already set", func() {
 			By("setting fields that would normally get a default")
 			obj.Spec.ConcurrencyPolicy = batchv1.ForbidConcurrent
-			obj.Spec.Suspend = new(bool)
-			*obj.Spec.Suspend = true
-			obj.Spec.SuccessfulJobsHistoryLimit = new(int32)
-			*obj.Spec.SuccessfulJobsHistoryLimit = 5
-			obj.Spec.FailedJobsHistoryLimit = new(int32)
-			*obj.Spec.FailedJobsHistoryLimit = 2
+			obj.Spec.Suspend = ptr.To(true)
+			obj.Spec.SuccessfulJobsHistoryLimit = ptr.To(int32(5))
+			obj.Spec.FailedJobsHistoryLimit = ptr.To(int32(2))
 
 			By("calling the Default method to apply defaults")
 			_ = defaulter.Default(ctx, obj)
 			
 			By("checking that the fields were not overwritten")
 			Expect(obj.Spec.ConcurrencyPolicy).To(Equal(batchv1.ForbidConcurrent), "Expected ConcurrencyPolicy to retain its set value")
+			Expect(obj.Spec.Suspend).NotTo(BeNil())
 			Expect(*obj.Spec.Suspend).To(BeTrue(), "Expected Suspend to retain its set value")
+			Expect(obj.Spec.SuccessfulJobsHistoryLimit).NotTo(BeNil())
 			Expect(*obj.Spec.SuccessfulJobsHistoryLimit).To(Equal(int32(5)), "Expected SuccessfulJobsHistoryLimit to retain its set value")
+			Expect(obj.Spec.FailedJobsHistoryLimit).NotTo(BeNil())
 			Expect(*obj.Spec.FailedJobsHistoryLimit).To(Equal(int32(2)), "Expected FailedJobsHistoryLimit to retain its set value")
-		})`
+})`
 
 const webhookTestingValidatingTodoFragment = `// TODO (user): Add logic for validating webhooks
 		// Example:
@@ -338,8 +338,8 @@ const webhookTestsBeforeEachChanged = `obj = &batchv1.CronJob{
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*obj.Spec.SuccessfulJobsHistoryLimit = 3
@@ -349,8 +349,8 @@ const webhookTestsBeforeEachChanged = `obj = &batchv1.CronJob{
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*oldObj.Spec.SuccessfulJobsHistoryLimit = 3
diff --git a/hack/docs/internal/multiversion-tutorial/cronjob_v2.go b/hack/docs/internal/multiversion-tutorial/cronjob_v2.go
index 1dd2348b5fa..03c6cd2d4bc 100644
--- a/hack/docs/internal/multiversion-tutorial/cronjob_v2.go
+++ b/hack/docs/internal/multiversion-tutorial/cronjob_v2.go
@@ -41,6 +41,7 @@ const cronjobSpecMore = `// startingDeadlineSeconds defines in seconds for start
 	// - "Forbid": forbids concurrent runs, skipping next run if previous run hasn't finished yet;
 	// - "Replace": cancels currently running job and replaces it with a new one
 	// +optional
+	// +kubebuilder:default:=Allow
 	ConcurrencyPolicy ConcurrencyPolicy ` + "`json:\"concurrencyPolicy,omitempty\"`" + `
 
 	// suspend tells the controller to suspend subsequent executions, it does
@@ -49,6 +50,7 @@ const cronjobSpecMore = `// startingDeadlineSeconds defines in seconds for start
 	Suspend *bool ` + "`json:\"suspend,omitempty\"`" + `
 
 	// jobTemplate defines the job that will be created when executing a CronJob.
+	// +required
 	JobTemplate batchv1.JobTemplateSpec ` + "`json:\"jobTemplate\"`" + `
 
 	// successfulJobsHistoryLimit defines the number of successful finished jobs to retain.
diff --git a/hack/docs/internal/multiversion-tutorial/generate_multiversion.go b/hack/docs/internal/multiversion-tutorial/generate_multiversion.go
index 3b5ca4252a3..124c372a947 100644
--- a/hack/docs/internal/multiversion-tutorial/generate_multiversion.go
+++ b/hack/docs/internal/multiversion-tutorial/generate_multiversion.go
@@ -101,6 +101,14 @@ func (sp *Sample) UpdateTutorial() {
 	sp.updateAPIV1()
 	sp.updateAPIV2()
 	sp.updateWebhookV2()
+
+	path := "internal/webhook/v1/cronjob_webhook_test.go"
+	err := pluginutil.InsertCode(filepath.Join(sp.ctx.Dir, path),
+		`// TODO (user): Add any additional imports if needed`,
+		`
+	"k8s.io/utils/ptr"`)
+	hackutils.CheckError("add import for webhook tests", err)
+
 	sp.updateConversionFiles()
 	sp.updateSampleV2()
 	sp.updateMain()
@@ -147,8 +155,8 @@ interfaces, a conversion webhook will be registered.
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*obj.Spec.SuccessfulJobsHistoryLimit = 3
@@ -158,8 +166,8 @@ interfaces, a conversion webhook will be registered.
 			Spec: batchv1.CronJobSpec{
 				Schedule:                   schedule,
 				ConcurrencyPolicy:          batchv1.AllowConcurrent,
-				SuccessfulJobsHistoryLimit: new(int32),
-				FailedJobsHistoryLimit:     new(int32),
+				SuccessfulJobsHistoryLimit: ptr.To(int32(3)),
+				FailedJobsHistoryLimit:     ptr.To(int32(1)),
 			},
 		}
 		*oldObj.Spec.SuccessfulJobsHistoryLimit = 3
@@ -716,7 +724,8 @@ We'll leave our spec largely unchanged, except to change the schedule field to a
 	// Important: Run "make" to regenerate code after modifying this file
 	// The following markers will use OpenAPI v3 schema to validate the value
 	// More info: https://book.kubebuilder.io/reference/markers/crd-validation.html`,
-		`// The schedule in Cron format, see https://en.wikipedia.org/wiki/Cron.
+		`// schedule in Cron format, see https://en.wikipedia.org/wiki/Cron.
+	// +required
 	Schedule CronSchedule `+"`json:\"schedule\"`"+`
 
 	/*
@@ -752,6 +761,9 @@ We'll leave our spec largely unchanged, except to change the schedule field to a
 		`
 	// active defines a list of pointers to currently running jobs.
 	// +optional
+	// +listType=atomic
+	// +kubebuilder:validation:MinItems=1
+	// +kubebuilder:validation:MaxItems=10
 	Active []corev1.ObjectReference `+"`json:\"active,omitempty\"`"+`
 
 	// lastScheduleTime defines the information when was the last time the job was successfully scheduled.