diff --git a/.pubnub.yml b/.pubnub.yml
index cf149072..522fea9e 100644
--- a/.pubnub.yml
+++ b/.pubnub.yml
@@ -1,5 +1,15 @@
 --- 
 changelog: 
+  - 
+    changes: 
+      - 
+        text: "Fixes for 32bit and armv7 systems"
+        type: improvement
+      - 
+        text: "QueryParam and State in Presence Heartbeat"
+        type: improvement
+    date: Jan 15, 19  
+    version: v4.1.6
   - 
     changes: 
       - 
@@ -303,4 +313,4 @@ supported-platforms:
       - "Mac OS X 10.8 or later, amd64"
       - "Windows 7 or later, amd64, 386"
     version: "PubNub Go SDK"
-version: v4.1.5
+version: v4.1.6
diff --git a/README.md b/README.md
index 89e294c4..77508439 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 
-# PubNub 4.1.5 client for Go
+# PubNub 4.1.6 client for Go
 * Go (1.9+)
 
 # Please direct all Support Questions and Concerns to Support@PubNub.com
diff --git a/VERSION b/VERSION
index b1cbc1fc..561ad334 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.1.5
+4.1.6
diff --git a/examples/cli/cli_demo.go b/examples/cli/cli_demo.go
index 39f3f462..e7f69875 100644
--- a/examples/cli/cli_demo.go
+++ b/examples/cli/cli_demo.go
@@ -360,7 +360,14 @@ func runPresenceRequest(args []string) {
 	if len(args) > 2 {
 		groups = strings.Split(args[2], ",")
 	}
-	pn.Presence().Connected(connected).Channels(channels).ChannelGroups(groups).Execute()
+	queryParam := map[string]string{
+		"q1": "v1",
+		"q2": "v2",
+	}
+	state := map[string]interface{}{
+		"state": "stateval",
+	}
+	pn.Presence().Connected(connected).Channels(channels).QueryParam(queryParam).State(state).ChannelGroups(groups).Execute()
 }
 
 func setPresenceTimeout(args []string) {
diff --git a/heartbeat_manager.go b/heartbeat_manager.go
index eb54a865..29c940d9 100644
--- a/heartbeat_manager.go
+++ b/heartbeat_manager.go
@@ -20,6 +20,8 @@ type HeartbeatManager struct {
 	ctx                       Context
 	runIndependentOfSubscribe bool
 	hbRunning                 bool
+	queryParam                map[string]string
+	state                     map[string]interface{}
 }
 
 func newHeartbeatManager(pn *PubNub, context Context) *HeartbeatManager {
@@ -156,17 +158,23 @@ func (m *HeartbeatManager) prepareList(subItem map[string]*SubscriptionItem) []s
 }
 
 func (m *HeartbeatManager) performHeartbeatLoop() error {
+	var stateStorage map[string]interface{}
+
 	m.RLock()
 	presenceChannels := m.prepareList(m.heartbeatChannels)
 	presenceGroups := m.prepareList(m.heartbeatGroups)
+	stateStorage = m.state
+	queryParam := m.queryParam
 	m.pubnub.Config.Log.Println("performHeartbeatLoop: count presenceChannels, presenceGroups", len(presenceChannels), len(presenceGroups))
 	m.RUnlock()
-	var stateStorage map[string]interface{}
+
 	if (len(presenceChannels) == 0) && (len(presenceGroups) == 0) {
 		m.pubnub.Config.Log.Println("performHeartbeatLoop: count presenceChannels, presenceGroups nil")
 		presenceChannels = m.pubnub.subscriptionManager.stateManager.prepareChannelList(false)
 		presenceGroups = m.pubnub.subscriptionManager.stateManager.prepareGroupList(false)
 		stateStorage = m.pubnub.subscriptionManager.stateManager.createStatePayload()
+		queryParam = nil
+
 		m.pubnub.Config.Log.Println("performHeartbeatLoop: count sub presenceChannels, presenceGroups", len(presenceChannels), len(presenceGroups))
 	}
 
@@ -180,6 +188,7 @@ func (m *HeartbeatManager) performHeartbeatLoop() error {
 		Channels(presenceChannels).
 		ChannelGroups(presenceGroups).
 		State(stateStorage).
+		QueryParam(queryParam).
 		Execute()
 
 	if err != nil {
diff --git a/heartbeat_request.go b/heartbeat_request.go
index 33e567f0..c454585d 100644
--- a/heartbeat_request.go
+++ b/heartbeat_request.go
@@ -39,6 +39,13 @@ func newHeartbeatBuilderWithContext(pubnub *PubNub,
 	return &builder
 }
 
+// QueryParam accepts a map, the keys and values of the map are passed as the query string parameters of the URL called by the API.
+func (b *heartbeatBuilder) QueryParam(queryParam map[string]string) *heartbeatBuilder {
+	b.opts.QueryParam = queryParam
+
+	return b
+}
+
 // State sets the state for the Heartbeat request.
 func (b *heartbeatBuilder) State(state interface{}) *heartbeatBuilder {
 	b.opts.State = state
@@ -84,6 +91,7 @@ type heartbeatOpts struct {
 
 	Channels      []string
 	ChannelGroups []string
+	QueryParam    map[string]string
 
 	ctx Context
 }
@@ -139,6 +147,7 @@ func (o *heartbeatOpts) buildQuery() (*url.Values, error) {
 			q.Set("state", string(state))
 		}
 	}
+	SetQueryParam(q, o.QueryParam)
 
 	return q, nil
 }
diff --git a/history_request.go b/history_request.go
index 6baad636..8756fd59 100644
--- a/history_request.go
+++ b/history_request.go
@@ -251,7 +251,7 @@ func parseInterface(vv []interface{}, o *historyOpts) []HistoryResponseItem {
 					s := fmt.Sprintf("%.0f", f)
 					o.pubnub.Config.Log.Println("s:", s)
 
-					if tt, err := strconv.Atoi(s); err == nil {
+					if tt, err := strconv.ParseInt(s, 10, 64); err == nil {
 						o.pubnub.Config.Log.Println("tt:", tt)
 						items[i].Timetoken = int64(tt)
 					} else {
diff --git a/presence_request.go b/presence_request.go
index addc8602..f0a4f409 100644
--- a/presence_request.go
+++ b/presence_request.go
@@ -15,6 +15,8 @@ type presenceOpts struct {
 	channelGroups []string
 	connected     bool
 	ctx           Context
+	queryParam    map[string]string
+	state         map[string]interface{}
 }
 
 func newPresenceBuilder(pubnub *PubNub) *presenceBuilder {
@@ -59,6 +61,19 @@ func (b *presenceBuilder) Connected(connected bool) *presenceBuilder {
 	return b
 }
 
+// QueryParam accepts a map, the keys and values of the map are passed as the query string parameters of the URL called by the API.
+func (b *presenceBuilder) QueryParam(queryParam map[string]string) *presenceBuilder {
+	b.opts.queryParam = queryParam
+
+	return b
+}
+
+// State sets the State for the Set State request.
+func (b *presenceBuilder) State(state map[string]interface{}) *presenceBuilder {
+	b.opts.state = state
+	return b
+}
+
 func (b *presenceBuilder) Execute() {
 	if b.opts.connected {
 		for _, ch := range b.opts.channels {
@@ -77,12 +92,16 @@ func (b *presenceBuilder) Execute() {
 			b.opts.pubnub.heartbeatManager.heartbeatGroups[cg] = newSubscriptionItem(cg)
 			b.opts.pubnub.heartbeatManager.Unlock()
 		}
-
+		b.opts.pubnub.heartbeatManager.state = b.opts.state
+		b.opts.pubnub.heartbeatManager.queryParam = b.opts.queryParam
 		b.opts.pubnub.heartbeatManager.startHeartbeatTimer(true)
 	} else {
 		b.opts.pubnub.heartbeatManager.Lock()
 		b.opts.pubnub.heartbeatManager.heartbeatChannels = make(map[string]*SubscriptionItem)
 		b.opts.pubnub.heartbeatManager.heartbeatGroups = make(map[string]*SubscriptionItem)
+		b.opts.pubnub.heartbeatManager.state = nil
+		b.opts.pubnub.heartbeatManager.queryParam = nil
+
 		b.opts.pubnub.heartbeatManager.Unlock()
 		// b.opts.pubnub.heartbeatManager.stopHeartbeat(true, true)
 	}
diff --git a/publish_request.go b/publish_request.go
index 875a3f05..c675d71d 100644
--- a/publish_request.go
+++ b/publish_request.go
@@ -45,7 +45,7 @@ type publishOpts struct {
 
 // PublishResponse is the response after the execution on Publish and Fire operations.
 type PublishResponse struct {
-	Timestamp int
+	Timestamp int64
 }
 
 type publishBuilder struct {
@@ -68,7 +68,7 @@ func newPublishResponse(jsonBytes []byte, status StatusResponse) (
 	if !ok {
 		return emptyPublishResponse, status, pnerr.NewResponseParsingError(fmt.Sprintf("Error unmarshalling response, %s %v", value[2], value), nil, nil)
 	}
-	timestamp, err := strconv.Atoi(timeString)
+	timestamp, err := strconv.ParseInt(timeString, 10, 64)
 	if err != nil {
 		return emptyPublishResponse, status, err
 	}
diff --git a/pubnub.go b/pubnub.go
index be2a25c1..aaa8f78b 100644
--- a/pubnub.go
+++ b/pubnub.go
@@ -12,7 +12,7 @@ import (
 // Default constants
 const (
 	// Version :the version of the SDK
-	Version = "4.1.5"
+	Version = "4.1.6"
 	// MaxSequence for publish messages
 	MaxSequence = 65535
 )
diff --git a/subscription_manager.go b/subscription_manager.go
index 45878bbf..61c413a6 100644
--- a/subscription_manager.go
+++ b/subscription_manager.go
@@ -573,6 +573,9 @@ func processSubscribePayload(m *SubscriptionManager, payload subscribeMessage) {
 			case int:
 				timestamp = int64(presencePayload["timestamp"].(int))
 				break
+			case int64:
+				timestamp = presencePayload["timestamp"].(int64)
+				break
 			case float64:
 				timestamp = int64(presencePayload["timestamp"].(float64))
 				break
diff --git a/subscription_manager_test.go b/subscription_manager_test.go
index 68eddb37..7d576cf8 100644
--- a/subscription_manager_test.go
+++ b/subscription_manager_test.go
@@ -403,7 +403,7 @@ func TestProcessSubscribePayload(t *testing.T) {
 
 	payload := &map[string]interface{}{
 		"action":    "join",
-		"timestamp": 15078947309567840,
+		"timestamp": int64(15078947309567840),
 		"uuid":      "bfce00ff4018fce180438bb04afc8da8",
 		"occupancy": 1,
 	}
@@ -504,7 +504,7 @@ func TestProcessSubscribePayloadSubMatch(t *testing.T) {
 
 	payload := &map[string]interface{}{
 		"action":           "join",
-		"timestamp":        15078947309567840,
+		"timestamp":        int64(15078947309567840),
 		"uuid":             "bfce00ff4018fce180438bb04afc8da8",
 		"occupancy":        1,
 		"here_now_refresh": true,