diff --git a/_schema/tdesktop.tl b/_schema/tdesktop.tl
index 2f56328bcf..46bdd51540 100644
--- a/_schema/tdesktop.tl
+++ b/_schema/tdesktop.tl
@@ -1,8 +1,8 @@
 // Code generated by ./cmd/dltl, DO NOT EDIT.
 //
 // Source: https://raw.githubusercontent.com/telegramdesktop/tdesktop/dev/Telegram/SourceFiles/mtproto/scheme/api.tl
-// Layer:  187
-// SHA256: 13e5ee643d6d776ab46f2cd1a21c9b274a4cb46106dea20770ebce90115e1e42
+// Layer:  188
+// SHA256: 89808bbed6042add7f7ed5bf49c07086c6e4b17e38744a4653d30865ab7eb3da
 
 boolFalse#bc799737 = Bool;
 
@@ -204,7 +204,7 @@ messageMediaContact#70322949 phone_number:string first_name:string last_name:str
 
 messageMediaUnsupported#9f84f49e = MessageMedia;
 
-messageMediaDocument#4cf4d72d flags:# nopremium:flags.3?true spoiler:flags.4?true video:flags.6?true round:flags.7?true voice:flags.8?true document:flags.0?Document alt_document:flags.5?Document ttl_seconds:flags.2?int = MessageMedia;
+messageMediaDocument#dd570bd5 flags:# nopremium:flags.3?true spoiler:flags.4?true video:flags.6?true round:flags.7?true voice:flags.8?true document:flags.0?Document alt_documents:flags.5?Vector<Document> ttl_seconds:flags.2?int = MessageMedia;
 
 messageMediaWebPage#ddf10c3b flags:# force_large_media:flags.0?true force_small_media:flags.1?true manual:flags.3?true safe:flags.4?true webpage:WebPage = MessageMedia;
 
@@ -984,7 +984,7 @@ documentAttributeAnimated#11b58939 = DocumentAttribute;
 
 documentAttributeSticker#6319d612 flags:# mask:flags.1?true alt:string stickerset:InputStickerSet mask_coords:flags.0?MaskCoords = DocumentAttribute;
 
-documentAttributeVideo#17399fad flags:# round_message:flags.0?true supports_streaming:flags.1?true nosound:flags.3?true duration:double w:int h:int preload_prefix_size:flags.2?int video_start_ts:flags.4?double = DocumentAttribute;
+documentAttributeVideo#43c57c48 flags:# round_message:flags.0?true supports_streaming:flags.1?true nosound:flags.3?true duration:double w:int h:int preload_prefix_size:flags.2?int video_start_ts:flags.4?double video_codec:flags.5?string = DocumentAttribute;
 
 documentAttributeAudio#9852f9c6 flags:# voice:flags.10?true duration:int title:flags.0?string performer:flags.1?string waveform:flags.2?bytes = DocumentAttribute;
 
@@ -1104,6 +1104,8 @@ keyboardButtonRequestPeer#53d7bfd8 text:string button_id:int peer_type:RequestPe
 
 inputKeyboardButtonRequestPeer#c9662d05 flags:# name_requested:flags.0?true username_requested:flags.1?true photo_requested:flags.2?true text:string button_id:int peer_type:RequestPeerType max_quantity:int = KeyboardButton;
 
+keyboardButtonCopy#75d2698e text:string copy_text:string = KeyboardButton;
+
 keyboardButtonRow#77608b83 buttons:Vector<KeyboardButton> = KeyboardButtonRow;
 
 replyKeyboardHide#a03e5b85 flags:# selective:flags.2?true = ReplyMarkup;
@@ -3681,7 +3683,7 @@ channels.reportAntiSpamFalsePositive#a850a693 channel:InputChannel msg_id:int =
 
 channels.toggleParticipantsHidden#6a6e7854 channel:InputChannel enabled:Bool = Updates;
 
-channels.clickSponsoredMessage#18afbc93 channel:InputChannel random_id:bytes = Bool;
+channels.clickSponsoredMessage#1445d75 flags:# media:flags.0?true fullscreen:flags.1?true channel:InputChannel random_id:bytes = Bool;
 
 channels.updateColor#d8aa3671 flags:# for_profile:flags.1?true channel:InputChannel color:flags.2?int background_emoji_id:flags.0?long = Updates;
 
@@ -4023,4 +4025,4 @@ smsjobs.finishJob#4f1ebf24 flags:# job_id:string error:flags.0?string = Bool;
 
 fragment.getCollectibleInfo#be1e85ba collectible:InputCollectible = fragment.CollectibleInfo;
 
-// LAYER 187
+// LAYER 188
diff --git a/_schema/telegram.tl b/_schema/telegram.tl
index d5109b4366..17a97ec837 100644
--- a/_schema/telegram.tl
+++ b/_schema/telegram.tl
@@ -2,8 +2,8 @@
 //
 // Source: https://raw.githubusercontent.com/telegramdesktop/tdesktop/dev/Telegram/SourceFiles/mtproto/scheme/api.tl
 // Merge:  _schema/legacy.tl
-// Layer:  187
-// SHA256: 13e5ee643d6d776ab46f2cd1a21c9b274a4cb46106dea20770ebce90115e1e42
+// Layer:  188
+// SHA256: 89808bbed6042add7f7ed5bf49c07086c6e4b17e38744a4653d30865ab7eb3da
 
 boolFalse#bc799737 = Bool;
 
@@ -205,7 +205,7 @@ messageMediaContact#70322949 phone_number:string first_name:string last_name:str
 
 messageMediaUnsupported#9f84f49e = MessageMedia;
 
-messageMediaDocument#4cf4d72d flags:# nopremium:flags.3?true spoiler:flags.4?true video:flags.6?true round:flags.7?true voice:flags.8?true document:flags.0?Document alt_document:flags.5?Document ttl_seconds:flags.2?int = MessageMedia;
+messageMediaDocument#dd570bd5 flags:# nopremium:flags.3?true spoiler:flags.4?true video:flags.6?true round:flags.7?true voice:flags.8?true document:flags.0?Document alt_documents:flags.5?Vector<Document> ttl_seconds:flags.2?int = MessageMedia;
 
 messageMediaWebPage#ddf10c3b flags:# force_large_media:flags.0?true force_small_media:flags.1?true manual:flags.3?true safe:flags.4?true webpage:WebPage = MessageMedia;
 
@@ -985,7 +985,7 @@ documentAttributeAnimated#11b58939 = DocumentAttribute;
 
 documentAttributeSticker#6319d612 flags:# mask:flags.1?true alt:string stickerset:InputStickerSet mask_coords:flags.0?MaskCoords = DocumentAttribute;
 
-documentAttributeVideo#17399fad flags:# round_message:flags.0?true supports_streaming:flags.1?true nosound:flags.3?true duration:double w:int h:int preload_prefix_size:flags.2?int video_start_ts:flags.4?double = DocumentAttribute;
+documentAttributeVideo#43c57c48 flags:# round_message:flags.0?true supports_streaming:flags.1?true nosound:flags.3?true duration:double w:int h:int preload_prefix_size:flags.2?int video_start_ts:flags.4?double video_codec:flags.5?string = DocumentAttribute;
 
 documentAttributeAudio#9852f9c6 flags:# voice:flags.10?true duration:int title:flags.0?string performer:flags.1?string waveform:flags.2?bytes = DocumentAttribute;
 
@@ -1105,6 +1105,8 @@ keyboardButtonRequestPeer#53d7bfd8 text:string button_id:int peer_type:RequestPe
 
 inputKeyboardButtonRequestPeer#c9662d05 flags:# name_requested:flags.0?true username_requested:flags.1?true photo_requested:flags.2?true text:string button_id:int peer_type:RequestPeerType max_quantity:int = KeyboardButton;
 
+keyboardButtonCopy#75d2698e text:string copy_text:string = KeyboardButton;
+
 keyboardButtonRow#77608b83 buttons:Vector<KeyboardButton> = KeyboardButtonRow;
 
 replyKeyboardHide#a03e5b85 flags:# selective:flags.2?true = ReplyMarkup;
@@ -3682,7 +3684,7 @@ channels.reportAntiSpamFalsePositive#a850a693 channel:InputChannel msg_id:int =
 
 channels.toggleParticipantsHidden#6a6e7854 channel:InputChannel enabled:Bool = Updates;
 
-channels.clickSponsoredMessage#18afbc93 channel:InputChannel random_id:bytes = Bool;
+channels.clickSponsoredMessage#1445d75 flags:# media:flags.0?true fullscreen:flags.1?true channel:InputChannel random_id:bytes = Bool;
 
 channels.updateColor#d8aa3671 flags:# for_profile:flags.1?true channel:InputChannel color:flags.2?int background_emoji_id:flags.0?long = Updates;
 
@@ -4056,4 +4058,4 @@ test.useError#ee75af01 = Error;
 
 test.useConfigSimple#f9b7b23d = help.ConfigSimple;
 
-// LAYER 187
+// LAYER 188
diff --git a/tg/tl_channels_click_sponsored_message_gen.go b/tg/tl_channels_click_sponsored_message_gen.go
index 099196584c..b5cd28419a 100644
--- a/tg/tl_channels_click_sponsored_message_gen.go
+++ b/tg/tl_channels_click_sponsored_message_gen.go
@@ -31,11 +31,17 @@ var (
 	_ = tdjson.Encoder{}
 )
 
-// ChannelsClickSponsoredMessageRequest represents TL type `channels.clickSponsoredMessage#18afbc93`.
+// ChannelsClickSponsoredMessageRequest represents TL type `channels.clickSponsoredMessage#1445d75`.
 // Informs the server that the user has either:
 //
 // See https://core.telegram.org/method/channels.clickSponsoredMessage for reference.
 type ChannelsClickSponsoredMessageRequest struct {
+	// Flags field of ChannelsClickSponsoredMessageRequest.
+	Flags bin.Fields
+	// Media field of ChannelsClickSponsoredMessageRequest.
+	Media bool
+	// Fullscreen field of ChannelsClickSponsoredMessageRequest.
+	Fullscreen bool
 	// Channel where the sponsored message was posted
 	Channel InputChannelClass
 	// Message ID
@@ -43,7 +49,7 @@ type ChannelsClickSponsoredMessageRequest struct {
 }
 
 // ChannelsClickSponsoredMessageRequestTypeID is TL type id of ChannelsClickSponsoredMessageRequest.
-const ChannelsClickSponsoredMessageRequestTypeID = 0x18afbc93
+const ChannelsClickSponsoredMessageRequestTypeID = 0x1445d75
 
 // Ensuring interfaces in compile-time for ChannelsClickSponsoredMessageRequest.
 var (
@@ -57,6 +63,15 @@ func (c *ChannelsClickSponsoredMessageRequest) Zero() bool {
 	if c == nil {
 		return true
 	}
+	if !(c.Flags.Zero()) {
+		return false
+	}
+	if !(c.Media == false) {
+		return false
+	}
+	if !(c.Fullscreen == false) {
+		return false
+	}
 	if !(c.Channel == nil) {
 		return false
 	}
@@ -78,9 +93,13 @@ func (c *ChannelsClickSponsoredMessageRequest) String() string {
 
 // FillFrom fills ChannelsClickSponsoredMessageRequest from given interface.
 func (c *ChannelsClickSponsoredMessageRequest) FillFrom(from interface {
+	GetMedia() (value bool)
+	GetFullscreen() (value bool)
 	GetChannel() (value InputChannelClass)
 	GetRandomID() (value []byte)
 }) {
+	c.Media = from.GetMedia()
+	c.Fullscreen = from.GetFullscreen()
 	c.Channel = from.GetChannel()
 	c.RandomID = from.GetRandomID()
 }
@@ -108,6 +127,16 @@ func (c *ChannelsClickSponsoredMessageRequest) TypeInfo() tdp.Type {
 		return typ
 	}
 	typ.Fields = []tdp.Field{
+		{
+			Name:       "Media",
+			SchemaName: "media",
+			Null:       !c.Flags.Has(0),
+		},
+		{
+			Name:       "Fullscreen",
+			SchemaName: "fullscreen",
+			Null:       !c.Flags.Has(1),
+		},
 		{
 			Name:       "Channel",
 			SchemaName: "channel",
@@ -120,10 +149,20 @@ func (c *ChannelsClickSponsoredMessageRequest) TypeInfo() tdp.Type {
 	return typ
 }
 
+// SetFlags sets flags for non-zero fields.
+func (c *ChannelsClickSponsoredMessageRequest) SetFlags() {
+	if !(c.Media == false) {
+		c.Flags.Set(0)
+	}
+	if !(c.Fullscreen == false) {
+		c.Flags.Set(1)
+	}
+}
+
 // Encode implements bin.Encoder.
 func (c *ChannelsClickSponsoredMessageRequest) Encode(b *bin.Buffer) error {
 	if c == nil {
-		return fmt.Errorf("can't encode channels.clickSponsoredMessage#18afbc93 as nil")
+		return fmt.Errorf("can't encode channels.clickSponsoredMessage#1445d75 as nil")
 	}
 	b.PutID(ChannelsClickSponsoredMessageRequestTypeID)
 	return c.EncodeBare(b)
@@ -132,13 +171,17 @@ func (c *ChannelsClickSponsoredMessageRequest) Encode(b *bin.Buffer) error {
 // EncodeBare implements bin.BareEncoder.
 func (c *ChannelsClickSponsoredMessageRequest) EncodeBare(b *bin.Buffer) error {
 	if c == nil {
-		return fmt.Errorf("can't encode channels.clickSponsoredMessage#18afbc93 as nil")
+		return fmt.Errorf("can't encode channels.clickSponsoredMessage#1445d75 as nil")
+	}
+	c.SetFlags()
+	if err := c.Flags.Encode(b); err != nil {
+		return fmt.Errorf("unable to encode channels.clickSponsoredMessage#1445d75: field flags: %w", err)
 	}
 	if c.Channel == nil {
-		return fmt.Errorf("unable to encode channels.clickSponsoredMessage#18afbc93: field channel is nil")
+		return fmt.Errorf("unable to encode channels.clickSponsoredMessage#1445d75: field channel is nil")
 	}
 	if err := c.Channel.Encode(b); err != nil {
-		return fmt.Errorf("unable to encode channels.clickSponsoredMessage#18afbc93: field channel: %w", err)
+		return fmt.Errorf("unable to encode channels.clickSponsoredMessage#1445d75: field channel: %w", err)
 	}
 	b.PutBytes(c.RandomID)
 	return nil
@@ -147,10 +190,10 @@ func (c *ChannelsClickSponsoredMessageRequest) EncodeBare(b *bin.Buffer) error {
 // Decode implements bin.Decoder.
 func (c *ChannelsClickSponsoredMessageRequest) Decode(b *bin.Buffer) error {
 	if c == nil {
-		return fmt.Errorf("can't decode channels.clickSponsoredMessage#18afbc93 to nil")
+		return fmt.Errorf("can't decode channels.clickSponsoredMessage#1445d75 to nil")
 	}
 	if err := b.ConsumeID(ChannelsClickSponsoredMessageRequestTypeID); err != nil {
-		return fmt.Errorf("unable to decode channels.clickSponsoredMessage#18afbc93: %w", err)
+		return fmt.Errorf("unable to decode channels.clickSponsoredMessage#1445d75: %w", err)
 	}
 	return c.DecodeBare(b)
 }
@@ -158,25 +201,70 @@ func (c *ChannelsClickSponsoredMessageRequest) Decode(b *bin.Buffer) error {
 // DecodeBare implements bin.BareDecoder.
 func (c *ChannelsClickSponsoredMessageRequest) DecodeBare(b *bin.Buffer) error {
 	if c == nil {
-		return fmt.Errorf("can't decode channels.clickSponsoredMessage#18afbc93 to nil")
+		return fmt.Errorf("can't decode channels.clickSponsoredMessage#1445d75 to nil")
+	}
+	{
+		if err := c.Flags.Decode(b); err != nil {
+			return fmt.Errorf("unable to decode channels.clickSponsoredMessage#1445d75: field flags: %w", err)
+		}
 	}
+	c.Media = c.Flags.Has(0)
+	c.Fullscreen = c.Flags.Has(1)
 	{
 		value, err := DecodeInputChannel(b)
 		if err != nil {
-			return fmt.Errorf("unable to decode channels.clickSponsoredMessage#18afbc93: field channel: %w", err)
+			return fmt.Errorf("unable to decode channels.clickSponsoredMessage#1445d75: field channel: %w", err)
 		}
 		c.Channel = value
 	}
 	{
 		value, err := b.Bytes()
 		if err != nil {
-			return fmt.Errorf("unable to decode channels.clickSponsoredMessage#18afbc93: field random_id: %w", err)
+			return fmt.Errorf("unable to decode channels.clickSponsoredMessage#1445d75: field random_id: %w", err)
 		}
 		c.RandomID = value
 	}
 	return nil
 }
 
+// SetMedia sets value of Media conditional field.
+func (c *ChannelsClickSponsoredMessageRequest) SetMedia(value bool) {
+	if value {
+		c.Flags.Set(0)
+		c.Media = true
+	} else {
+		c.Flags.Unset(0)
+		c.Media = false
+	}
+}
+
+// GetMedia returns value of Media conditional field.
+func (c *ChannelsClickSponsoredMessageRequest) GetMedia() (value bool) {
+	if c == nil {
+		return
+	}
+	return c.Flags.Has(0)
+}
+
+// SetFullscreen sets value of Fullscreen conditional field.
+func (c *ChannelsClickSponsoredMessageRequest) SetFullscreen(value bool) {
+	if value {
+		c.Flags.Set(1)
+		c.Fullscreen = true
+	} else {
+		c.Flags.Unset(1)
+		c.Fullscreen = false
+	}
+}
+
+// GetFullscreen returns value of Fullscreen conditional field.
+func (c *ChannelsClickSponsoredMessageRequest) GetFullscreen() (value bool) {
+	if c == nil {
+		return
+	}
+	return c.Flags.Has(1)
+}
+
 // GetChannel returns value of Channel field.
 func (c *ChannelsClickSponsoredMessageRequest) GetChannel() (value InputChannelClass) {
 	if c == nil {
@@ -198,7 +286,7 @@ func (c *ChannelsClickSponsoredMessageRequest) GetChannelAsNotEmpty() (NotEmptyI
 	return c.Channel.AsNotEmpty()
 }
 
-// ChannelsClickSponsoredMessage invokes method channels.clickSponsoredMessage#18afbc93 returning error if any.
+// ChannelsClickSponsoredMessage invokes method channels.clickSponsoredMessage#1445d75 returning error if any.
 // Informs the server that the user has either:
 //
 // Possible errors:
diff --git a/tg/tl_document_attribute_gen.go b/tg/tl_document_attribute_gen.go
index d6183ac264..e051e79368 100644
--- a/tg/tl_document_attribute_gen.go
+++ b/tg/tl_document_attribute_gen.go
@@ -566,7 +566,7 @@ func (d *DocumentAttributeSticker) GetMaskCoords() (value MaskCoords, ok bool) {
 	return d.MaskCoords, true
 }
 
-// DocumentAttributeVideo represents TL type `documentAttributeVideo#17399fad`.
+// DocumentAttributeVideo represents TL type `documentAttributeVideo#43c57c48`.
 // Defines a video
 //
 // See https://core.telegram.org/constructor/documentAttributeVideo for reference.
@@ -601,10 +601,14 @@ type DocumentAttributeVideo struct {
 	//
 	// Use SetVideoStartTs and GetVideoStartTs helpers.
 	VideoStartTs float64
+	// VideoCodec field of DocumentAttributeVideo.
+	//
+	// Use SetVideoCodec and GetVideoCodec helpers.
+	VideoCodec string
 }
 
 // DocumentAttributeVideoTypeID is TL type id of DocumentAttributeVideo.
-const DocumentAttributeVideoTypeID = 0x17399fad
+const DocumentAttributeVideoTypeID = 0x43c57c48
 
 // construct implements constructor of DocumentAttributeClass.
 func (d DocumentAttributeVideo) construct() DocumentAttributeClass { return &d }
@@ -650,6 +654,9 @@ func (d *DocumentAttributeVideo) Zero() bool {
 	if !(d.VideoStartTs == 0) {
 		return false
 	}
+	if !(d.VideoCodec == "") {
+		return false
+	}
 
 	return true
 }
@@ -673,6 +680,7 @@ func (d *DocumentAttributeVideo) FillFrom(from interface {
 	GetH() (value int)
 	GetPreloadPrefixSize() (value int, ok bool)
 	GetVideoStartTs() (value float64, ok bool)
+	GetVideoCodec() (value string, ok bool)
 }) {
 	d.RoundMessage = from.GetRoundMessage()
 	d.SupportsStreaming = from.GetSupportsStreaming()
@@ -688,6 +696,10 @@ func (d *DocumentAttributeVideo) FillFrom(from interface {
 		d.VideoStartTs = val
 	}
 
+	if val, ok := from.GetVideoCodec(); ok {
+		d.VideoCodec = val
+	}
+
 }
 
 // TypeID returns type id in TL schema.
@@ -750,6 +762,11 @@ func (d *DocumentAttributeVideo) TypeInfo() tdp.Type {
 			SchemaName: "video_start_ts",
 			Null:       !d.Flags.Has(4),
 		},
+		{
+			Name:       "VideoCodec",
+			SchemaName: "video_codec",
+			Null:       !d.Flags.Has(5),
+		},
 	}
 	return typ
 }
@@ -771,12 +788,15 @@ func (d *DocumentAttributeVideo) SetFlags() {
 	if !(d.VideoStartTs == 0) {
 		d.Flags.Set(4)
 	}
+	if !(d.VideoCodec == "") {
+		d.Flags.Set(5)
+	}
 }
 
 // Encode implements bin.Encoder.
 func (d *DocumentAttributeVideo) Encode(b *bin.Buffer) error {
 	if d == nil {
-		return fmt.Errorf("can't encode documentAttributeVideo#17399fad as nil")
+		return fmt.Errorf("can't encode documentAttributeVideo#43c57c48 as nil")
 	}
 	b.PutID(DocumentAttributeVideoTypeID)
 	return d.EncodeBare(b)
@@ -785,11 +805,11 @@ func (d *DocumentAttributeVideo) Encode(b *bin.Buffer) error {
 // EncodeBare implements bin.BareEncoder.
 func (d *DocumentAttributeVideo) EncodeBare(b *bin.Buffer) error {
 	if d == nil {
-		return fmt.Errorf("can't encode documentAttributeVideo#17399fad as nil")
+		return fmt.Errorf("can't encode documentAttributeVideo#43c57c48 as nil")
 	}
 	d.SetFlags()
 	if err := d.Flags.Encode(b); err != nil {
-		return fmt.Errorf("unable to encode documentAttributeVideo#17399fad: field flags: %w", err)
+		return fmt.Errorf("unable to encode documentAttributeVideo#43c57c48: field flags: %w", err)
 	}
 	b.PutDouble(d.Duration)
 	b.PutInt(d.W)
@@ -800,16 +820,19 @@ func (d *DocumentAttributeVideo) EncodeBare(b *bin.Buffer) error {
 	if d.Flags.Has(4) {
 		b.PutDouble(d.VideoStartTs)
 	}
+	if d.Flags.Has(5) {
+		b.PutString(d.VideoCodec)
+	}
 	return nil
 }
 
 // Decode implements bin.Decoder.
 func (d *DocumentAttributeVideo) Decode(b *bin.Buffer) error {
 	if d == nil {
-		return fmt.Errorf("can't decode documentAttributeVideo#17399fad to nil")
+		return fmt.Errorf("can't decode documentAttributeVideo#43c57c48 to nil")
 	}
 	if err := b.ConsumeID(DocumentAttributeVideoTypeID); err != nil {
-		return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: %w", err)
+		return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: %w", err)
 	}
 	return d.DecodeBare(b)
 }
@@ -817,11 +840,11 @@ func (d *DocumentAttributeVideo) Decode(b *bin.Buffer) error {
 // DecodeBare implements bin.BareDecoder.
 func (d *DocumentAttributeVideo) DecodeBare(b *bin.Buffer) error {
 	if d == nil {
-		return fmt.Errorf("can't decode documentAttributeVideo#17399fad to nil")
+		return fmt.Errorf("can't decode documentAttributeVideo#43c57c48 to nil")
 	}
 	{
 		if err := d.Flags.Decode(b); err != nil {
-			return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: field flags: %w", err)
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field flags: %w", err)
 		}
 	}
 	d.RoundMessage = d.Flags.Has(0)
@@ -830,38 +853,45 @@ func (d *DocumentAttributeVideo) DecodeBare(b *bin.Buffer) error {
 	{
 		value, err := b.Double()
 		if err != nil {
-			return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: field duration: %w", err)
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field duration: %w", err)
 		}
 		d.Duration = value
 	}
 	{
 		value, err := b.Int()
 		if err != nil {
-			return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: field w: %w", err)
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field w: %w", err)
 		}
 		d.W = value
 	}
 	{
 		value, err := b.Int()
 		if err != nil {
-			return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: field h: %w", err)
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field h: %w", err)
 		}
 		d.H = value
 	}
 	if d.Flags.Has(2) {
 		value, err := b.Int()
 		if err != nil {
-			return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: field preload_prefix_size: %w", err)
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field preload_prefix_size: %w", err)
 		}
 		d.PreloadPrefixSize = value
 	}
 	if d.Flags.Has(4) {
 		value, err := b.Double()
 		if err != nil {
-			return fmt.Errorf("unable to decode documentAttributeVideo#17399fad: field video_start_ts: %w", err)
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field video_start_ts: %w", err)
 		}
 		d.VideoStartTs = value
 	}
+	if d.Flags.Has(5) {
+		value, err := b.String()
+		if err != nil {
+			return fmt.Errorf("unable to decode documentAttributeVideo#43c57c48: field video_codec: %w", err)
+		}
+		d.VideoCodec = value
+	}
 	return nil
 }
 
@@ -982,6 +1012,24 @@ func (d *DocumentAttributeVideo) GetVideoStartTs() (value float64, ok bool) {
 	return d.VideoStartTs, true
 }
 
+// SetVideoCodec sets value of VideoCodec conditional field.
+func (d *DocumentAttributeVideo) SetVideoCodec(value string) {
+	d.Flags.Set(5)
+	d.VideoCodec = value
+}
+
+// GetVideoCodec returns value of VideoCodec conditional field and
+// boolean which is true if field was set.
+func (d *DocumentAttributeVideo) GetVideoCodec() (value string, ok bool) {
+	if d == nil {
+		return
+	}
+	if !d.Flags.Has(5) {
+		return value, false
+	}
+	return d.VideoCodec, true
+}
+
 // DocumentAttributeAudio represents TL type `documentAttributeAudio#9852f9c6`.
 // Represents an audio file
 //
@@ -1835,7 +1883,7 @@ const DocumentAttributeClassName = "DocumentAttribute"
 //	case *tg.DocumentAttributeImageSize: // documentAttributeImageSize#6c37c15c
 //	case *tg.DocumentAttributeAnimated: // documentAttributeAnimated#11b58939
 //	case *tg.DocumentAttributeSticker: // documentAttributeSticker#6319d612
-//	case *tg.DocumentAttributeVideo: // documentAttributeVideo#17399fad
+//	case *tg.DocumentAttributeVideo: // documentAttributeVideo#43c57c48
 //	case *tg.DocumentAttributeAudio: // documentAttributeAudio#9852f9c6
 //	case *tg.DocumentAttributeFilename: // documentAttributeFilename#15590068
 //	case *tg.DocumentAttributeHasStickers: // documentAttributeHasStickers#9801d2f7
@@ -1890,7 +1938,7 @@ func DecodeDocumentAttribute(buf *bin.Buffer) (DocumentAttributeClass, error) {
 		}
 		return &v, nil
 	case DocumentAttributeVideoTypeID:
-		// Decoding documentAttributeVideo#17399fad.
+		// Decoding documentAttributeVideo#43c57c48.
 		v := DocumentAttributeVideo{}
 		if err := v.Decode(buf); err != nil {
 			return nil, fmt.Errorf("unable to decode DocumentAttributeClass: %w", err)
diff --git a/tg/tl_keyboard_button_gen.go b/tg/tl_keyboard_button_gen.go
index 1e57a4c1c8..a758882625 100644
--- a/tg/tl_keyboard_button_gen.go
+++ b/tg/tl_keyboard_button_gen.go
@@ -3465,6 +3465,167 @@ func (i *InputKeyboardButtonRequestPeer) GetMaxQuantity() (value int) {
 	return i.MaxQuantity
 }
 
+// KeyboardButtonCopy represents TL type `keyboardButtonCopy#75d2698e`.
+//
+// See https://core.telegram.org/constructor/keyboardButtonCopy for reference.
+type KeyboardButtonCopy struct {
+	// Text field of KeyboardButtonCopy.
+	Text string
+	// CopyText field of KeyboardButtonCopy.
+	CopyText string
+}
+
+// KeyboardButtonCopyTypeID is TL type id of KeyboardButtonCopy.
+const KeyboardButtonCopyTypeID = 0x75d2698e
+
+// construct implements constructor of KeyboardButtonClass.
+func (k KeyboardButtonCopy) construct() KeyboardButtonClass { return &k }
+
+// Ensuring interfaces in compile-time for KeyboardButtonCopy.
+var (
+	_ bin.Encoder     = &KeyboardButtonCopy{}
+	_ bin.Decoder     = &KeyboardButtonCopy{}
+	_ bin.BareEncoder = &KeyboardButtonCopy{}
+	_ bin.BareDecoder = &KeyboardButtonCopy{}
+
+	_ KeyboardButtonClass = &KeyboardButtonCopy{}
+)
+
+func (k *KeyboardButtonCopy) Zero() bool {
+	if k == nil {
+		return true
+	}
+	if !(k.Text == "") {
+		return false
+	}
+	if !(k.CopyText == "") {
+		return false
+	}
+
+	return true
+}
+
+// String implements fmt.Stringer.
+func (k *KeyboardButtonCopy) String() string {
+	if k == nil {
+		return "KeyboardButtonCopy(nil)"
+	}
+	type Alias KeyboardButtonCopy
+	return fmt.Sprintf("KeyboardButtonCopy%+v", Alias(*k))
+}
+
+// FillFrom fills KeyboardButtonCopy from given interface.
+func (k *KeyboardButtonCopy) FillFrom(from interface {
+	GetText() (value string)
+	GetCopyText() (value string)
+}) {
+	k.Text = from.GetText()
+	k.CopyText = from.GetCopyText()
+}
+
+// TypeID returns type id in TL schema.
+//
+// See https://core.telegram.org/mtproto/TL-tl#remarks.
+func (*KeyboardButtonCopy) TypeID() uint32 {
+	return KeyboardButtonCopyTypeID
+}
+
+// TypeName returns name of type in TL schema.
+func (*KeyboardButtonCopy) TypeName() string {
+	return "keyboardButtonCopy"
+}
+
+// TypeInfo returns info about TL type.
+func (k *KeyboardButtonCopy) TypeInfo() tdp.Type {
+	typ := tdp.Type{
+		Name: "keyboardButtonCopy",
+		ID:   KeyboardButtonCopyTypeID,
+	}
+	if k == nil {
+		typ.Null = true
+		return typ
+	}
+	typ.Fields = []tdp.Field{
+		{
+			Name:       "Text",
+			SchemaName: "text",
+		},
+		{
+			Name:       "CopyText",
+			SchemaName: "copy_text",
+		},
+	}
+	return typ
+}
+
+// Encode implements bin.Encoder.
+func (k *KeyboardButtonCopy) Encode(b *bin.Buffer) error {
+	if k == nil {
+		return fmt.Errorf("can't encode keyboardButtonCopy#75d2698e as nil")
+	}
+	b.PutID(KeyboardButtonCopyTypeID)
+	return k.EncodeBare(b)
+}
+
+// EncodeBare implements bin.BareEncoder.
+func (k *KeyboardButtonCopy) EncodeBare(b *bin.Buffer) error {
+	if k == nil {
+		return fmt.Errorf("can't encode keyboardButtonCopy#75d2698e as nil")
+	}
+	b.PutString(k.Text)
+	b.PutString(k.CopyText)
+	return nil
+}
+
+// Decode implements bin.Decoder.
+func (k *KeyboardButtonCopy) Decode(b *bin.Buffer) error {
+	if k == nil {
+		return fmt.Errorf("can't decode keyboardButtonCopy#75d2698e to nil")
+	}
+	if err := b.ConsumeID(KeyboardButtonCopyTypeID); err != nil {
+		return fmt.Errorf("unable to decode keyboardButtonCopy#75d2698e: %w", err)
+	}
+	return k.DecodeBare(b)
+}
+
+// DecodeBare implements bin.BareDecoder.
+func (k *KeyboardButtonCopy) DecodeBare(b *bin.Buffer) error {
+	if k == nil {
+		return fmt.Errorf("can't decode keyboardButtonCopy#75d2698e to nil")
+	}
+	{
+		value, err := b.String()
+		if err != nil {
+			return fmt.Errorf("unable to decode keyboardButtonCopy#75d2698e: field text: %w", err)
+		}
+		k.Text = value
+	}
+	{
+		value, err := b.String()
+		if err != nil {
+			return fmt.Errorf("unable to decode keyboardButtonCopy#75d2698e: field copy_text: %w", err)
+		}
+		k.CopyText = value
+	}
+	return nil
+}
+
+// GetText returns value of Text field.
+func (k *KeyboardButtonCopy) GetText() (value string) {
+	if k == nil {
+		return
+	}
+	return k.Text
+}
+
+// GetCopyText returns value of CopyText field.
+func (k *KeyboardButtonCopy) GetCopyText() (value string) {
+	if k == nil {
+		return
+	}
+	return k.CopyText
+}
+
 // KeyboardButtonClassName is schema name of KeyboardButtonClass.
 const KeyboardButtonClassName = "KeyboardButton"
 
@@ -3496,6 +3657,7 @@ const KeyboardButtonClassName = "KeyboardButton"
 //	case *tg.KeyboardButtonSimpleWebView: // keyboardButtonSimpleWebView#a0c0505c
 //	case *tg.KeyboardButtonRequestPeer: // keyboardButtonRequestPeer#53d7bfd8
 //	case *tg.InputKeyboardButtonRequestPeer: // inputKeyboardButtonRequestPeer#c9662d05
+//	case *tg.KeyboardButtonCopy: // keyboardButtonCopy#75d2698e
 //	default: panic(v)
 //	}
 type KeyboardButtonClass interface {
@@ -3646,6 +3808,13 @@ func DecodeKeyboardButton(buf *bin.Buffer) (KeyboardButtonClass, error) {
 			return nil, fmt.Errorf("unable to decode KeyboardButtonClass: %w", err)
 		}
 		return &v, nil
+	case KeyboardButtonCopyTypeID:
+		// Decoding keyboardButtonCopy#75d2698e.
+		v := KeyboardButtonCopy{}
+		if err := v.Decode(buf); err != nil {
+			return nil, fmt.Errorf("unable to decode KeyboardButtonClass: %w", err)
+		}
+		return &v, nil
 	default:
 		return nil, fmt.Errorf("unable to decode KeyboardButtonClass: %w", bin.NewUnexpectedID(id))
 	}
diff --git a/tg/tl_keyboard_button_slices_gen.go b/tg/tl_keyboard_button_slices_gen.go
index 6fa97ce117..3f83ff131b 100644
--- a/tg/tl_keyboard_button_slices_gen.go
+++ b/tg/tl_keyboard_button_slices_gen.go
@@ -337,6 +337,19 @@ func (s KeyboardButtonClassArray) AsInputKeyboardButtonRequestPeer() (to InputKe
 	return to
 }
 
+// AsKeyboardButtonCopy returns copy with only KeyboardButtonCopy constructors.
+func (s KeyboardButtonClassArray) AsKeyboardButtonCopy() (to KeyboardButtonCopyArray) {
+	for _, elem := range s {
+		value, ok := elem.(*KeyboardButtonCopy)
+		if !ok {
+			continue
+		}
+		to = append(to, *value)
+	}
+
+	return to
+}
+
 // KeyboardButtonArray is adapter for slice of KeyboardButton.
 type KeyboardButtonArray []KeyboardButton
 
@@ -1730,3 +1743,85 @@ func (s *InputKeyboardButtonRequestPeerArray) Pop() (v InputKeyboardButtonReques
 
 	return v, true
 }
+
+// KeyboardButtonCopyArray is adapter for slice of KeyboardButtonCopy.
+type KeyboardButtonCopyArray []KeyboardButtonCopy
+
+// Sort sorts slice of KeyboardButtonCopy.
+func (s KeyboardButtonCopyArray) Sort(less func(a, b KeyboardButtonCopy) bool) KeyboardButtonCopyArray {
+	sort.Slice(s, func(i, j int) bool {
+		return less(s[i], s[j])
+	})
+	return s
+}
+
+// SortStable sorts slice of KeyboardButtonCopy.
+func (s KeyboardButtonCopyArray) SortStable(less func(a, b KeyboardButtonCopy) bool) KeyboardButtonCopyArray {
+	sort.SliceStable(s, func(i, j int) bool {
+		return less(s[i], s[j])
+	})
+	return s
+}
+
+// Retain filters in-place slice of KeyboardButtonCopy.
+func (s KeyboardButtonCopyArray) Retain(keep func(x KeyboardButtonCopy) bool) KeyboardButtonCopyArray {
+	n := 0
+	for _, x := range s {
+		if keep(x) {
+			s[n] = x
+			n++
+		}
+	}
+	s = s[:n]
+
+	return s
+}
+
+// First returns first element of slice (if exists).
+func (s KeyboardButtonCopyArray) First() (v KeyboardButtonCopy, ok bool) {
+	if len(s) < 1 {
+		return
+	}
+	return s[0], true
+}
+
+// Last returns last element of slice (if exists).
+func (s KeyboardButtonCopyArray) Last() (v KeyboardButtonCopy, ok bool) {
+	if len(s) < 1 {
+		return
+	}
+	return s[len(s)-1], true
+}
+
+// PopFirst returns first element of slice (if exists) and deletes it.
+func (s *KeyboardButtonCopyArray) PopFirst() (v KeyboardButtonCopy, ok bool) {
+	if s == nil || len(*s) < 1 {
+		return
+	}
+
+	a := *s
+	v = a[0]
+
+	// Delete by index from SliceTricks.
+	copy(a[0:], a[1:])
+	var zero KeyboardButtonCopy
+	a[len(a)-1] = zero
+	a = a[:len(a)-1]
+	*s = a
+
+	return v, true
+}
+
+// Pop returns last element of slice (if exists) and deletes it.
+func (s *KeyboardButtonCopyArray) Pop() (v KeyboardButtonCopy, ok bool) {
+	if s == nil || len(*s) < 1 {
+		return
+	}
+
+	a := *s
+	v = a[len(a)-1]
+	a = a[:len(a)-1]
+	*s = a
+
+	return v, true
+}
diff --git a/tg/tl_message_media_gen.go b/tg/tl_message_media_gen.go
index e408a3bfc1..8d39d50881 100644
--- a/tg/tl_message_media_gen.go
+++ b/tg/tl_message_media_gen.go
@@ -883,7 +883,7 @@ func (m *MessageMediaUnsupported) DecodeBare(b *bin.Buffer) error {
 	return nil
 }
 
-// MessageMediaDocument represents TL type `messageMediaDocument#4cf4d72d`.
+// MessageMediaDocument represents TL type `messageMediaDocument#dd570bd5`.
 // Document (video, audio, voice, sticker, any media type except photo)
 //
 // See https://core.telegram.org/constructor/messageMediaDocument for reference.
@@ -908,12 +908,10 @@ type MessageMediaDocument struct {
 	//
 	// Use SetDocument and GetDocument helpers.
 	Document DocumentClass
-	// Currently only used for story videos, may contain an alternative version of the story
-	// video, explicitly encoded using H.264 (in MPEG4 transport) at a lower resolution than
-	// document.
+	// AltDocuments field of MessageMediaDocument.
 	//
-	// Use SetAltDocument and GetAltDocument helpers.
-	AltDocument DocumentClass
+	// Use SetAltDocuments and GetAltDocuments helpers.
+	AltDocuments []DocumentClass
 	// Time to live of self-destructing document
 	//
 	// Use SetTTLSeconds and GetTTLSeconds helpers.
@@ -921,7 +919,7 @@ type MessageMediaDocument struct {
 }
 
 // MessageMediaDocumentTypeID is TL type id of MessageMediaDocument.
-const MessageMediaDocumentTypeID = 0x4cf4d72d
+const MessageMediaDocumentTypeID = 0xdd570bd5
 
 // construct implements constructor of MessageMediaClass.
 func (m MessageMediaDocument) construct() MessageMediaClass { return &m }
@@ -961,7 +959,7 @@ func (m *MessageMediaDocument) Zero() bool {
 	if !(m.Document == nil) {
 		return false
 	}
-	if !(m.AltDocument == nil) {
+	if !(m.AltDocuments == nil) {
 		return false
 	}
 	if !(m.TTLSeconds == 0) {
@@ -988,7 +986,7 @@ func (m *MessageMediaDocument) FillFrom(from interface {
 	GetRound() (value bool)
 	GetVoice() (value bool)
 	GetDocument() (value DocumentClass, ok bool)
-	GetAltDocument() (value DocumentClass, ok bool)
+	GetAltDocuments() (value []DocumentClass, ok bool)
 	GetTTLSeconds() (value int, ok bool)
 }) {
 	m.Nopremium = from.GetNopremium()
@@ -1000,8 +998,8 @@ func (m *MessageMediaDocument) FillFrom(from interface {
 		m.Document = val
 	}
 
-	if val, ok := from.GetAltDocument(); ok {
-		m.AltDocument = val
+	if val, ok := from.GetAltDocuments(); ok {
+		m.AltDocuments = val
 	}
 
 	if val, ok := from.GetTTLSeconds(); ok {
@@ -1064,8 +1062,8 @@ func (m *MessageMediaDocument) TypeInfo() tdp.Type {
 			Null:       !m.Flags.Has(0),
 		},
 		{
-			Name:       "AltDocument",
-			SchemaName: "alt_document",
+			Name:       "AltDocuments",
+			SchemaName: "alt_documents",
 			Null:       !m.Flags.Has(5),
 		},
 		{
@@ -1097,7 +1095,7 @@ func (m *MessageMediaDocument) SetFlags() {
 	if !(m.Document == nil) {
 		m.Flags.Set(0)
 	}
-	if !(m.AltDocument == nil) {
+	if !(m.AltDocuments == nil) {
 		m.Flags.Set(5)
 	}
 	if !(m.TTLSeconds == 0) {
@@ -1108,7 +1106,7 @@ func (m *MessageMediaDocument) SetFlags() {
 // Encode implements bin.Encoder.
 func (m *MessageMediaDocument) Encode(b *bin.Buffer) error {
 	if m == nil {
-		return fmt.Errorf("can't encode messageMediaDocument#4cf4d72d as nil")
+		return fmt.Errorf("can't encode messageMediaDocument#dd570bd5 as nil")
 	}
 	b.PutID(MessageMediaDocumentTypeID)
 	return m.EncodeBare(b)
@@ -1117,26 +1115,29 @@ func (m *MessageMediaDocument) Encode(b *bin.Buffer) error {
 // EncodeBare implements bin.BareEncoder.
 func (m *MessageMediaDocument) EncodeBare(b *bin.Buffer) error {
 	if m == nil {
-		return fmt.Errorf("can't encode messageMediaDocument#4cf4d72d as nil")
+		return fmt.Errorf("can't encode messageMediaDocument#dd570bd5 as nil")
 	}
 	m.SetFlags()
 	if err := m.Flags.Encode(b); err != nil {
-		return fmt.Errorf("unable to encode messageMediaDocument#4cf4d72d: field flags: %w", err)
+		return fmt.Errorf("unable to encode messageMediaDocument#dd570bd5: field flags: %w", err)
 	}
 	if m.Flags.Has(0) {
 		if m.Document == nil {
-			return fmt.Errorf("unable to encode messageMediaDocument#4cf4d72d: field document is nil")
+			return fmt.Errorf("unable to encode messageMediaDocument#dd570bd5: field document is nil")
 		}
 		if err := m.Document.Encode(b); err != nil {
-			return fmt.Errorf("unable to encode messageMediaDocument#4cf4d72d: field document: %w", err)
+			return fmt.Errorf("unable to encode messageMediaDocument#dd570bd5: field document: %w", err)
 		}
 	}
 	if m.Flags.Has(5) {
-		if m.AltDocument == nil {
-			return fmt.Errorf("unable to encode messageMediaDocument#4cf4d72d: field alt_document is nil")
-		}
-		if err := m.AltDocument.Encode(b); err != nil {
-			return fmt.Errorf("unable to encode messageMediaDocument#4cf4d72d: field alt_document: %w", err)
+		b.PutVectorHeader(len(m.AltDocuments))
+		for idx, v := range m.AltDocuments {
+			if v == nil {
+				return fmt.Errorf("unable to encode messageMediaDocument#dd570bd5: field alt_documents element with index %d is nil", idx)
+			}
+			if err := v.Encode(b); err != nil {
+				return fmt.Errorf("unable to encode messageMediaDocument#dd570bd5: field alt_documents element with index %d: %w", idx, err)
+			}
 		}
 	}
 	if m.Flags.Has(2) {
@@ -1148,10 +1149,10 @@ func (m *MessageMediaDocument) EncodeBare(b *bin.Buffer) error {
 // Decode implements bin.Decoder.
 func (m *MessageMediaDocument) Decode(b *bin.Buffer) error {
 	if m == nil {
-		return fmt.Errorf("can't decode messageMediaDocument#4cf4d72d to nil")
+		return fmt.Errorf("can't decode messageMediaDocument#dd570bd5 to nil")
 	}
 	if err := b.ConsumeID(MessageMediaDocumentTypeID); err != nil {
-		return fmt.Errorf("unable to decode messageMediaDocument#4cf4d72d: %w", err)
+		return fmt.Errorf("unable to decode messageMediaDocument#dd570bd5: %w", err)
 	}
 	return m.DecodeBare(b)
 }
@@ -1159,11 +1160,11 @@ func (m *MessageMediaDocument) Decode(b *bin.Buffer) error {
 // DecodeBare implements bin.BareDecoder.
 func (m *MessageMediaDocument) DecodeBare(b *bin.Buffer) error {
 	if m == nil {
-		return fmt.Errorf("can't decode messageMediaDocument#4cf4d72d to nil")
+		return fmt.Errorf("can't decode messageMediaDocument#dd570bd5 to nil")
 	}
 	{
 		if err := m.Flags.Decode(b); err != nil {
-			return fmt.Errorf("unable to decode messageMediaDocument#4cf4d72d: field flags: %w", err)
+			return fmt.Errorf("unable to decode messageMediaDocument#dd570bd5: field flags: %w", err)
 		}
 	}
 	m.Nopremium = m.Flags.Has(3)
@@ -1174,21 +1175,31 @@ func (m *MessageMediaDocument) DecodeBare(b *bin.Buffer) error {
 	if m.Flags.Has(0) {
 		value, err := DecodeDocument(b)
 		if err != nil {
-			return fmt.Errorf("unable to decode messageMediaDocument#4cf4d72d: field document: %w", err)
+			return fmt.Errorf("unable to decode messageMediaDocument#dd570bd5: field document: %w", err)
 		}
 		m.Document = value
 	}
 	if m.Flags.Has(5) {
-		value, err := DecodeDocument(b)
+		headerLen, err := b.VectorHeader()
 		if err != nil {
-			return fmt.Errorf("unable to decode messageMediaDocument#4cf4d72d: field alt_document: %w", err)
+			return fmt.Errorf("unable to decode messageMediaDocument#dd570bd5: field alt_documents: %w", err)
+		}
+
+		if headerLen > 0 {
+			m.AltDocuments = make([]DocumentClass, 0, headerLen%bin.PreallocateLimit)
+		}
+		for idx := 0; idx < headerLen; idx++ {
+			value, err := DecodeDocument(b)
+			if err != nil {
+				return fmt.Errorf("unable to decode messageMediaDocument#dd570bd5: field alt_documents: %w", err)
+			}
+			m.AltDocuments = append(m.AltDocuments, value)
 		}
-		m.AltDocument = value
 	}
 	if m.Flags.Has(2) {
 		value, err := b.Int()
 		if err != nil {
-			return fmt.Errorf("unable to decode messageMediaDocument#4cf4d72d: field ttl_seconds: %w", err)
+			return fmt.Errorf("unable to decode messageMediaDocument#dd570bd5: field ttl_seconds: %w", err)
 		}
 		m.TTLSeconds = value
 	}
@@ -1308,22 +1319,22 @@ func (m *MessageMediaDocument) GetDocument() (value DocumentClass, ok bool) {
 	return m.Document, true
 }
 
-// SetAltDocument sets value of AltDocument conditional field.
-func (m *MessageMediaDocument) SetAltDocument(value DocumentClass) {
+// SetAltDocuments sets value of AltDocuments conditional field.
+func (m *MessageMediaDocument) SetAltDocuments(value []DocumentClass) {
 	m.Flags.Set(5)
-	m.AltDocument = value
+	m.AltDocuments = value
 }
 
-// GetAltDocument returns value of AltDocument conditional field and
+// GetAltDocuments returns value of AltDocuments conditional field and
 // boolean which is true if field was set.
-func (m *MessageMediaDocument) GetAltDocument() (value DocumentClass, ok bool) {
+func (m *MessageMediaDocument) GetAltDocuments() (value []DocumentClass, ok bool) {
 	if m == nil {
 		return
 	}
 	if !m.Flags.Has(5) {
 		return value, false
 	}
-	return m.AltDocument, true
+	return m.AltDocuments, true
 }
 
 // SetTTLSeconds sets value of TTLSeconds conditional field.
@@ -1344,6 +1355,14 @@ func (m *MessageMediaDocument) GetTTLSeconds() (value int, ok bool) {
 	return m.TTLSeconds, true
 }
 
+// MapAltDocuments returns field AltDocuments wrapped in DocumentClassArray helper.
+func (m *MessageMediaDocument) MapAltDocuments() (value DocumentClassArray, ok bool) {
+	if !m.Flags.Has(5) {
+		return value, false
+	}
+	return DocumentClassArray(m.AltDocuments), true
+}
+
 // MessageMediaWebPage represents TL type `messageMediaWebPage#ddf10c3b`.
 // Preview of webpage
 //
@@ -4784,7 +4803,7 @@ const MessageMediaClassName = "MessageMedia"
 //	case *tg.MessageMediaGeo: // messageMediaGeo#56e0d474
 //	case *tg.MessageMediaContact: // messageMediaContact#70322949
 //	case *tg.MessageMediaUnsupported: // messageMediaUnsupported#9f84f49e
-//	case *tg.MessageMediaDocument: // messageMediaDocument#4cf4d72d
+//	case *tg.MessageMediaDocument: // messageMediaDocument#dd570bd5
 //	case *tg.MessageMediaWebPage: // messageMediaWebPage#ddf10c3b
 //	case *tg.MessageMediaVenue: // messageMediaVenue#2ec0533f
 //	case *tg.MessageMediaGame: // messageMediaGame#fdb19008
@@ -4860,7 +4879,7 @@ func DecodeMessageMedia(buf *bin.Buffer) (MessageMediaClass, error) {
 		}
 		return &v, nil
 	case MessageMediaDocumentTypeID:
-		// Decoding messageMediaDocument#4cf4d72d.
+		// Decoding messageMediaDocument#dd570bd5.
 		v := MessageMediaDocument{}
 		if err := v.Decode(buf); err != nil {
 			return nil, fmt.Errorf("unable to decode MessageMediaClass: %w", err)
diff --git a/tg/tl_registry_gen.go b/tg/tl_registry_gen.go
index 0686b6dfe5..797cbb92db 100644
--- a/tg/tl_registry_gen.go
+++ b/tg/tl_registry_gen.go
@@ -32,7 +32,7 @@ var (
 )
 
 // Layer version of schema.
-const Layer = 187
+const Layer = 188
 
 // TypesMap returns mapping from type ids to TL type names.
 func TypesMap() map[uint32]string {
@@ -137,7 +137,7 @@ func TypesMap() map[uint32]string {
 		MessageMediaGeoTypeID:                                    "messageMediaGeo#56e0d474",
 		MessageMediaContactTypeID:                                "messageMediaContact#70322949",
 		MessageMediaUnsupportedTypeID:                            "messageMediaUnsupported#9f84f49e",
-		MessageMediaDocumentTypeID:                               "messageMediaDocument#4cf4d72d",
+		MessageMediaDocumentTypeID:                               "messageMediaDocument#dd570bd5",
 		MessageMediaWebPageTypeID:                                "messageMediaWebPage#ddf10c3b",
 		MessageMediaVenueTypeID:                                  "messageMediaVenue#2ec0533f",
 		MessageMediaGameTypeID:                                   "messageMediaGame#fdb19008",
@@ -527,7 +527,7 @@ func TypesMap() map[uint32]string {
 		DocumentAttributeImageSizeTypeID:                         "documentAttributeImageSize#6c37c15c",
 		DocumentAttributeAnimatedTypeID:                          "documentAttributeAnimated#11b58939",
 		DocumentAttributeStickerTypeID:                           "documentAttributeSticker#6319d612",
-		DocumentAttributeVideoTypeID:                             "documentAttributeVideo#17399fad",
+		DocumentAttributeVideoTypeID:                             "documentAttributeVideo#43c57c48",
 		DocumentAttributeAudioTypeID:                             "documentAttributeAudio#9852f9c6",
 		DocumentAttributeFilenameTypeID:                          "documentAttributeFilename#15590068",
 		DocumentAttributeHasStickersTypeID:                       "documentAttributeHasStickers#9801d2f7",
@@ -587,6 +587,7 @@ func TypesMap() map[uint32]string {
 		KeyboardButtonSimpleWebViewTypeID:                        "keyboardButtonSimpleWebView#a0c0505c",
 		KeyboardButtonRequestPeerTypeID:                          "keyboardButtonRequestPeer#53d7bfd8",
 		InputKeyboardButtonRequestPeerTypeID:                     "inputKeyboardButtonRequestPeer#c9662d05",
+		KeyboardButtonCopyTypeID:                                 "keyboardButtonCopy#75d2698e",
 		KeyboardButtonRowTypeID:                                  "keyboardButtonRow#77608b83",
 		ReplyKeyboardHideTypeID:                                  "replyKeyboardHide#a03e5b85",
 		ReplyKeyboardForceReplyTypeID:                            "replyKeyboardForceReply#86b40b08",
@@ -1874,7 +1875,7 @@ func TypesMap() map[uint32]string {
 		ChannelsToggleAntiSpamRequestTypeID:                                     "channels.toggleAntiSpam#68f3e4eb",
 		ChannelsReportAntiSpamFalsePositiveRequestTypeID:                        "channels.reportAntiSpamFalsePositive#a850a693",
 		ChannelsToggleParticipantsHiddenRequestTypeID:                           "channels.toggleParticipantsHidden#6a6e7854",
-		ChannelsClickSponsoredMessageRequestTypeID:                              "channels.clickSponsoredMessage#18afbc93",
+		ChannelsClickSponsoredMessageRequestTypeID:                              "channels.clickSponsoredMessage#1445d75",
 		ChannelsUpdateColorRequestTypeID:                                        "channels.updateColor#d8aa3671",
 		ChannelsToggleViewForumAsMessagesRequestTypeID:                          "channels.toggleViewForumAsMessages#9738bb15",
 		ChannelsGetChannelRecommendationsRequestTypeID:                          "channels.getChannelRecommendations#25a71742",
@@ -2614,6 +2615,7 @@ func NamesMap() map[string]uint32 {
 		"keyboardButtonSimpleWebView":                        KeyboardButtonSimpleWebViewTypeID,
 		"keyboardButtonRequestPeer":                          KeyboardButtonRequestPeerTypeID,
 		"inputKeyboardButtonRequestPeer":                     InputKeyboardButtonRequestPeerTypeID,
+		"keyboardButtonCopy":                                 KeyboardButtonCopyTypeID,
 		"keyboardButtonRow":                                  KeyboardButtonRowTypeID,
 		"replyKeyboardHide":                                  ReplyKeyboardHideTypeID,
 		"replyKeyboardForceReply":                            ReplyKeyboardForceReplyTypeID,
@@ -4641,6 +4643,7 @@ func TypesConstructorMap() map[uint32]func() bin.Object {
 		KeyboardButtonSimpleWebViewTypeID:                        func() bin.Object { return &KeyboardButtonSimpleWebView{} },
 		KeyboardButtonRequestPeerTypeID:                          func() bin.Object { return &KeyboardButtonRequestPeer{} },
 		InputKeyboardButtonRequestPeerTypeID:                     func() bin.Object { return &InputKeyboardButtonRequestPeer{} },
+		KeyboardButtonCopyTypeID:                                 func() bin.Object { return &KeyboardButtonCopy{} },
 		KeyboardButtonRowTypeID:                                  func() bin.Object { return &KeyboardButtonRow{} },
 		ReplyKeyboardHideTypeID:                                  func() bin.Object { return &ReplyKeyboardHide{} },
 		ReplyKeyboardForceReplyTypeID:                            func() bin.Object { return &ReplyKeyboardForceReply{} },
@@ -6778,6 +6781,7 @@ func ClassConstructorsMap() map[string][]uint32 {
 			KeyboardButtonSimpleWebViewTypeID,
 			KeyboardButtonRequestPeerTypeID,
 			InputKeyboardButtonRequestPeerTypeID,
+			KeyboardButtonCopyTypeID,
 		},
 		LangPackStringClassName: {
 			LangPackStringTypeID,