Release Notes FIX BUGS: [TD-2301]: change [TD-2267]: remove redundant macro definition [TD-2199]: fix bugs in percentile in case of no data in table. [TD-2236]: fix bugs in groupby normal colunms + last query [TD-2281]: filter unsupported mixed up query functions. [TD-2313]: ensure length of nchar cols not exceed limit [TD-2169]: fix memory leaks in group by query processing. [TD-2265]: add the total number of rows in submit block during parse insert sql. [TD-2298]: fix taosd crash during table interval query. [TD-2255]: fix incorrect log variable and sim test cases [TD-2277]: fix invalid column type in stable query. [TD-2265]: fix TSDB_MAX_ALLOWED_SQL_LEN from 8MB to 1MB [TD-2129]: fix bug in twa calculation. [TD-2198]: cq can be created more than once [TD-2182]: coverity issues [TD-2216]: crash in qUtil.c [TD-2129]: fix bugs in twa query. [TD-2227]: remove false error message in the log file while no results returned from server in case of query against super table. [TD-2220]: fix the bug in column arithmetic expression. [TD-2220]: fix the bug in column arithmetic expression. [TD-2193]: fix the offset error in arithmetic expression. [TD-2180]: fix coverity issues. [TD-2169]: fix memory leak in handing the group by binary|nchar type data. [TD-2175]: fix the error in result field name and nchar column length ENHANCEMENTS: [TD-2293]: improve projection query performance for super table. [TD-2263]: debug log epSet.fqdn when connect success [TD-2255]: make db options days and keep error message more clear [TD-2163]: add the version check for query message. NEW FEATURES: [TD-2325]: enable configure if 50% cpu will be used in query processing. [TD-2309]: add config option to enable/disable stream (continuous query) [TD-1859]: restful implementation for taos-jdbc DOCS: TEST: [TD-2132]: add memory leak test case