[TD-11544]<feature>(query):compatibility between old version client and new version server

src/rpc/src/rpcMain.c

@@ -963,7 +963,8 @@ static SRpcConn *rpcProcessMsgHead(SRpcInfo *pRpc, SRecvInfo *pRecv, SRpcReqCont
     terrno = TSDB_CODE_RPC_INVALID_SESSION_ID; return NULL;
   }
 
-  if (rpcIsReq(pHead->msgType) && htonl(pHead->msgVer) != tsVersion >> 8) {
+  // compatibility between old version client and new version server, since 2.4.0.0
+  if (rpcIsReq(pHead->msgType) && htonl(pHead->msgVer) < ((2 << 24) | (4 << 16)) && htonl(pHead->msgVer) >> 16 != tsVersion >> 24) {
     tDebug("%s sid:%d, invalid client version:%x/%x %s", pRpc->label, sid, htonl(pHead->msgVer), tsVersion, taosMsg[pHead->msgType]);
     terrno = TSDB_CODE_RPC_INVALID_VERSION; return NULL;
   }