diff --git a/hcn/hcn.go b/hcn/hcn.go
index df3a59a78c..b6ecd75981 100644
--- a/hcn/hcn.go
+++ b/hcn/hcn.go
@@ -264,6 +264,18 @@ func SetPolicySupported() error {
 	return platformDoesNotSupportError("SetPolicy")
 }
 
+// ModifyLoadbalancerSupported returns an error if the HCN version does not support ModifyLoadbalancer.
+func ModifyLoadbalancerSupported() error {
+	supported, err := GetCachedSupportedFeatures()
+	if err != nil {
+		return err
+	}
+	if supported.ModifyLoadbalancer {
+		return nil
+	}
+	return platformDoesNotSupportError("ModifyLoadbalancer")
+}
+
 // VxlanPortSupported returns an error if the HCN version does not support configuring the VXLAN TCP port.
 func VxlanPortSupported() error {
 	supported, err := GetCachedSupportedFeatures()
diff --git a/hcn/hcnerrors.go b/hcn/hcnerrors.go
index ad30d320d9..c8cd009749 100644
--- a/hcn/hcnerrors.go
+++ b/hcn/hcnerrors.go
@@ -10,6 +10,7 @@ import (
 	"github.com/Microsoft/hcsshim/internal/hcserror"
 	"github.com/Microsoft/hcsshim/internal/interop"
 	"github.com/sirupsen/logrus"
+	"golang.org/x/sys/windows"
 )
 
 var (
@@ -50,6 +51,7 @@ type ErrorCode uint32
 const (
 	ERROR_NOT_FOUND                     = 0x490
 	HCN_E_PORT_ALREADY_EXISTS ErrorCode = 0x803b0013
+	HCN_E_NOTIMPL             ErrorCode = ErrorCode(windows.E_NOTIMPL)
 )
 
 type HcnError struct {
@@ -77,6 +79,10 @@ func IsPortAlreadyExistsError(err error) bool {
 	return CheckErrorWithCode(err, HCN_E_PORT_ALREADY_EXISTS)
 }
 
+func IsNotImplemented(err error) bool {
+	return CheckErrorWithCode(err, HCN_E_NOTIMPL)
+}
+
 func new(hr error, title string, rest string) error {
 	err := &HcnError{}
 	hcsError := hcserror.New(hr, title, rest)
diff --git a/hcn/hcnglobals.go b/hcn/hcnglobals.go
index 14903bc5e9..c0e9bc63bc 100644
--- a/hcn/hcnglobals.go
+++ b/hcn/hcnglobals.go
@@ -82,6 +82,11 @@ var (
 
 	//HNS 15.0 allows for NestedIpSet support
 	NestedIpSetVersion = VersionRanges{VersionRange{MinVersion: Version{Major: 15, Minor: 0}, MaxVersion: Version{Major: math.MaxInt32, Minor: math.MaxInt32}}}
+
+	//HNS 15.1 allows support for DisableHostPort flag.
+	DisableHostPortVersion = VersionRanges{VersionRange{MinVersion: Version{Major: 15, Minor: 1}, MaxVersion: Version{Major: math.MaxInt32, Minor: math.MaxInt32}}}
+	// HNS 15.4 allows for Modify Loadbalancer support
+	ModifyLoadbalancerVersion = VersionRanges{VersionRange{MinVersion: Version{Major: 15, Minor: 4}, MaxVersion: Version{Major: math.MaxInt32, Minor: math.MaxInt32}}}
 )
 
 // GetGlobals returns the global properties of the HCN Service.
diff --git a/hcn/hcnsupport.go b/hcn/hcnsupport.go
index bacb91feda..c34d89dbec 100644
--- a/hcn/hcnsupport.go
+++ b/hcn/hcnsupport.go
@@ -34,6 +34,8 @@ type SupportedFeatures struct {
 	TierAcl                  bool        `json:"TierAcl"`
 	NetworkACL               bool        `json:"NetworkACL"`
 	NestedIpSet              bool        `json:"NestedIpSet"`
+	DisableHostPort          bool        `json:"DisableHostPort"`
+	ModifyLoadbalancer       bool        `json:"ModifyLoadbalancer"`
 }
 
 // AclFeatures are the supported ACL possibilities.
@@ -111,6 +113,8 @@ func getSupportedFeatures() (SupportedFeatures, error) {
 	features.TierAcl = isFeatureSupported(globals.Version, TierAclPolicyVersion)
 	features.NetworkACL = isFeatureSupported(globals.Version, NetworkACLPolicyVersion)
 	features.NestedIpSet = isFeatureSupported(globals.Version, NestedIpSetVersion)
+	features.DisableHostPort = isFeatureSupported(globals.Version, DisableHostPortVersion)
+	features.ModifyLoadbalancer = isFeatureSupported(globals.Version, ModifyLoadbalancerVersion)
 
 	logrus.WithFields(logrus.Fields{
 		"version":           fmt.Sprintf("%+v", globals.Version),