Release Notes FIX BUGS: [TD-2420]: fix import file crash. [TD-2373]: data race in removeFromWheel [TD-2368]: show 4 new variables [TD-2366]: is (not) null for binary/nchar [TD-2274]: make ep inconsistent log message more clear [TD-2363]: Super Table hash is emptied abnormally, resulting in data query failure [TD-2370]: fix the deadlock when the system exits [TD-2347]: Modify some bugs in data migration and add mandatory check [TD-2342]: disallow cross db create child table [TD-2420]: fix import file crash. [TD-2424]: fix the float column precision caused filter failure. [TD-2129]: fix the bug that twa query result is incorrect while the value is less than 0. [TD-2414]: fix the bug that twa query processing causes server crash while query time range is empty. [TD-2165]: fix the bug that query can not be stopped if all query threads are busy. [TD-2364]: fix mybatis-plus pagenation exceptions [TD-2373]: data race in removeFromWheel [TD-2366]: is (not) null for binary/nchar [TD-2342]: disallow cross db create child table [TD-2344]: fix bugs for percentile against float columns. ENHANCEMENTS: [TD-2371]:Record important information to a separate log file called taoinfo [TD-2304]: make *Invalid timestamp* error more clear [TD-2379]: configure the number of CPU cores available for query processing. [TD-2375]: configure the number of CPU cores available for query processing. [TD-2361]: optimize the failure retry in insert processing. NEW FEATURES: [TD-2405]: new option -C (--dump-config) for taos and -C for taosd to dump configuration [TD-2310]: add dest table into show streams [TD-2191]: taosdemo tool for java developers [TD-1680]: print ellipsis when binary/nchar is too long DOCS: TEST: [TD-2129]: add test case for twa [TD-2114]: Improve performance test script [TD-2342]: add test case