Improved crash recovery performance.
Fixed MySQL Bug #52102: InnoDB Plugin shows performance drop comparing to builtin InnoDB on Windows only. Disabled Windows atomics by default.
Fixed MySQL Bug #51378: Init 'ref_length' to correct value, in case of an out of bound MySQL primary_key.
SHOW ENGINE INNODB MUTEX STATUS display
SUM(os_waits) for the buffer pool block mutexes
ALTER TABLE ... IMPORT TABLESPACE of
Fixed MySQL Bug #49535: Available memory check slows down crash recovery tens of times.
Let the master thread sleep if the amount of work to be done is calibrated as taking less than a second.
Fixed MySQL Bug #49001: SHOW INNODB STATUS deadlock info incorrect when deadlock detection aborts.
Fixed MySQL Bug #35077: Very slow DROP TABLE (ALTER TABLE, OPTIMIZE TABLE) on compressed tables.
Fixed MySQL Bug #49497: Error 1467
ER_AUTOINC_READ_FAILED) on inserting a
Do not merge buffered inserts to compressed pages before the redo log has been applied in crash recovery.
Do not attempt to access a clustered index record that has been
marked for deletion, On the
isolation level. In previous versions, the InnoDB would attempt
to retrieve a previous version of the record in this case.
Fixed an uninitialized access to
block->is_hashed, when disabling the adaptive
Fixed MySQL Bug #46193>: Crash when accessing tables after
Fixed MySQL Bug #49238: Creating / Dropping a temporary table while at 1023 transactions will cause assert.
zlib version number at startup.