diff --git a/.gitignore b/.gitignore
index eb7a23b..d3083e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 coverage.out
 tmp/
 book/
+.vscode/
diff --git a/configs.go b/configs.go
index 1831337..d90f29e 100644
--- a/configs.go
+++ b/configs.go
@@ -1164,6 +1164,7 @@ type WebhookConfig struct {
 	MaxConnections     int
 	AllowedUpdates     []string
 	DropPendingUpdates bool
+	SecretToken        string
 }
 
 func (config WebhookConfig) method() string {
@@ -1181,6 +1182,7 @@ func (config WebhookConfig) params() (Params, error) {
 	params.AddNonZero("max_connections", config.MaxConnections)
 	err := params.AddInterface("allowed_updates", config.AllowedUpdates)
 	params.AddBool("drop_pending_updates", config.DropPendingUpdates)
+	params.AddNonEmpty("secret_token", config.SecretToken)
 
 	return params, err
 }
@@ -1784,6 +1786,64 @@ func (config InvoiceConfig) method() string {
 	return "sendInvoice"
 }
 
+// InvoiceLinkConfig contains information for createInvoiceLink method
+type InvoiceLinkConfig struct {
+	Title                     string         //Required
+	Description               string         //Required
+	Payload                   string         //Required
+	ProviderToken             string         //Required
+	Currency                  string         //Required
+	Prices                    []LabeledPrice //Required
+	MaxTipAmount              int
+	SuggestedTipAmounts       []int
+	ProviderData              string
+	PhotoURL                  string
+	PhotoSize                 int
+	PhotoWidth                int
+	PhotoHeight               int
+	NeedName                  bool
+	NeedPhoneNumber           bool
+	NeedEmail                 bool
+	NeedShippingAddress       bool
+	SendPhoneNumberToProvider bool
+	SendEmailToProvider       bool
+	IsFlexible                bool
+}
+
+func (config InvoiceLinkConfig) params() (Params, error) {
+	params := make(Params)
+
+	params["title"] = config.Title
+	params["description"] = config.Description
+	params["payload"] = config.Payload
+	params["provider_token"] = config.ProviderToken
+	params["currency"] = config.Currency
+	if err := params.AddInterface("prices", config.Prices); err != nil {
+		return params, err
+	}
+
+	params.AddNonZero("max_tip_amount", config.MaxTipAmount)
+	err := params.AddInterface("suggested_tip_amounts", config.SuggestedTipAmounts)
+	params.AddNonEmpty("provider_data", config.ProviderData)
+	params.AddNonEmpty("photo_url", config.PhotoURL)
+	params.AddNonZero("photo_size", config.PhotoSize)
+	params.AddNonZero("photo_width", config.PhotoWidth)
+	params.AddNonZero("photo_height", config.PhotoHeight)
+	params.AddBool("need_name", config.NeedName)
+	params.AddBool("need_phone_number", config.NeedPhoneNumber)
+	params.AddBool("need_email", config.NeedEmail)
+	params.AddBool("need_shipping_address", config.NeedShippingAddress)
+	params.AddBool("send_phone_number_to_provider", config.SendPhoneNumberToProvider)
+	params.AddBool("send_email_to_provider", config.SendEmailToProvider)
+	params.AddBool("is_flexible", config.IsFlexible)
+
+	return params, err
+}
+
+func (config InvoiceLinkConfig) method() string {
+	return "createInvoiceLink"
+}
+
 // ShippingConfig contains information for answerShippingQuery request.
 type ShippingConfig struct {
 	ShippingQueryID string // required
diff --git a/types.go b/types.go
index 36c174b..8d44f58 100644
--- a/types.go
+++ b/types.go
@@ -187,6 +187,10 @@ type User struct {
 	//
 	// optional
 	IsPremium bool `json:"is_premium,omitempty"`
+	// AddedToAttachmentMenu true, if this user added the bot to the attachment menu
+	//
+	// optional
+	AddedToAttachmentMenu bool `json:"added_to_attachment_menu,omitempty"`
 	// FirstName user's or bot's first name
 	FirstName string `json:"first_name"`
 	// LastName user's or bot's last name
@@ -274,6 +278,18 @@ type Chat struct {
 	//
 	// optional
 	HasPrivateForwards bool `json:"has_private_forwards,omitempty"`
+	// JoinToSendMessages is true, if users need to join the supergroup
+	// before they can send messages.
+	// Returned only in getChat
+	//
+	// optional
+	JoinToSendMessages bool `json:"join_to_send_messages,omitempty"`
+	// JoinByRequest is true, if all users directly joining the supergroup
+	// need to be approved by supergroup administrators.
+	// Returned only in getChat.
+	//
+	// optional
+	JoinByRequest bool `json:"join_by_request,omitempty"`
 	// Description for groups, supergroups and channel chats
 	//
 	// optional
@@ -863,7 +879,7 @@ type Animation struct {
 	// FileSize file size
 	//
 	// optional
-	FileSize int `json:"file_size,omitempty"`
+	FileSize int64 `json:"file_size,omitempty"`
 }
 
 // Audio represents an audio file to be treated as music by the Telegram clients.
@@ -896,7 +912,7 @@ type Audio struct {
 	// FileSize file size
 	//
 	// optional
-	FileSize int `json:"file_size,omitempty"`
+	FileSize int64 `json:"file_size,omitempty"`
 	// Thumbnail is the album cover to which the music file belongs
 	//
 	// optional
@@ -927,7 +943,7 @@ type Document struct {
 	// FileSize file size
 	//
 	// optional
-	FileSize int `json:"file_size,omitempty"`
+	FileSize int64 `json:"file_size,omitempty"`
 }
 
 // Video represents a video file.
@@ -960,7 +976,7 @@ type Video struct {
 	// FileSize file size
 	//
 	// optional
-	FileSize int `json:"file_size,omitempty"`
+	FileSize int64 `json:"file_size,omitempty"`
 }
 
 // VideoNote object represents a video message.
@@ -1002,7 +1018,7 @@ type Voice struct {
 	// FileSize file size
 	//
 	// optional
-	FileSize int `json:"file_size,omitempty"`
+	FileSize int64 `json:"file_size,omitempty"`
 }
 
 // Contact represents a phone contact.
@@ -1234,7 +1250,7 @@ type File struct {
 	// FileSize file size, if known
 	//
 	// optional
-	FileSize int `json:"file_size,omitempty"`
+	FileSize int64 `json:"file_size,omitempty"`
 	// FilePath file path
 	//
 	// optional