MySQL Manual | D.8.2 Changes in release 3.19.4

Fixed horrible locking bug when inserting in one thread and reading in another thread.
Fixed one-off decimal bug. 1.00 was output as 1.0.
Added attribute 'Locked' to process list as information if a query is locked by another query.
Fixed full magic timestamp. Timestamp length may now be 14, 12, 10, 8, 6, 4 or 2 bytes.
Sort on some numeric functions could sort incorrectly on last number.
IF(arg,syntax_error,syntax_error) crashed.
Added functions CEILING(), ROUND(), EXP(), LOG() and SQRT().
Enhanced BETWEEN to handle strings.

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