diff --git a/public/eiface.h b/public/eiface.h
index abdf3fd3..df94bd63 100644
--- a/public/eiface.h
+++ b/public/eiface.h
@@ -63,6 +63,7 @@ class ISPSharedMemory;
 class CGamestatsData;
 class CEngineHltvInfo_t;
 class INetMessage;
+class HltvReplayParams_t;
 
 namespace google
 {
@@ -487,6 +488,15 @@ public:
 	
 	// Update counts of external viewers (Twitch.tv)
 	virtual void UpdateHltvExternalViewers( uint32 totalSpectators, uint32 spectatorsLinkedToSteam) = 0;
+	
+	virtual bool WasShutDownRequested( void ) const = 0;
+	virtual void *StartClientHltvReplay( int client , const HltvReplayParams_t & ) = 0;
+	virtual void *StopClientHltvReplay( int client ) = 0;
+	virtual int GetClientHltvReplayDelay( int client ) = 0;
+	virtual bool HasHltvReplay( void ) = 0;
+	virtual bool ClientCanStartHltvReplay( int client ) = 0;
+	virtual int ClientResetReplayRequestTime( int client ) = 0;
+	virtual bool AnyClientsInHltvReplayMode( void ) = 0;
 };
 
 #define INTERFACEVERSION_SERVERGAMEDLL				"ServerGameDLL005"
@@ -625,7 +635,10 @@ public:
 	virtual bool			OnPureServerFileValidationFailure( edict_t *pPlayer, const char *pszPathID, const char *pszFileName,
 								CRC32_t crcIOSequence, int eFileHashType, int cbFileLen, int nPackFileNumber, int nPackFileID ) = 0;
 	virtual void			PrecacheParticleSystemFile( const char *pszFilename ) = 0;
+	virtual void			ClientConnectionValidatePreNetChan( bool, const char *, int, unsigned long long ) = 0;
+	virtual void			OnEngineClientNetworkEvent( edict_t *, unsigned long long, int, void * ) = 0;
 	virtual void			GetNewestSubscribedFiles() = 0;
+	virtual bool			ValidateAndAddActiveCaster( const CSteamID & ) = 0;
 };
 
 //-----------------------------------------------------------------------------
diff --git a/public/iclient.h b/public/iclient.h
index f289d509..1828892e 100644
--- a/public/iclient.h
+++ b/public/iclient.h
@@ -19,6 +19,7 @@ class INetMessage;
 struct NetMessageCvar_t;
 struct USERID_t;
 class CMsg_CVars;
+class HltvReplayParams_t;
 
 enum CrossPlayPlatform_t
 {
@@ -108,6 +109,13 @@ public:
 	virtual bool	IsHumanPlayer() const = 0;
 
 	virtual CrossPlayPlatform_t		GetClientPlatform() const = 0;
+	
+	virtual bool StartHltvReplay( const HltvReplayParams_t & ) = 0;
+	virtual void StopHltvReplay( void ) = 0;
+	virtual int GetHltvReplayDelay( void ) = 0;
+	virtual const char *GetHltvReplayStatus( void ) const = 0;
+	virtual bool CanStartHltvReplay( void ) = 0;
+	virtual void ResetReplayRequestTime( void ) = 0;
 };
 
 #endif // ICLIENT_H
diff --git a/public/inetmsghandler.h b/public/inetmsghandler.h
index 422fb870..31f1b100 100644
--- a/public/inetmsghandler.h
+++ b/public/inetmsghandler.h
@@ -25,6 +25,8 @@ public:
 	virtual	~INetChannelHandler( void ) {};
 
 	virtual void ConnectionStart(INetChannel *chan) = 0;	// called first time network channel is established
+	
+	virtual void ConnectionStop() = 0;
 
 	virtual void ConnectionClosing(const char *reason) = 0; // network channel is being closed by remote site