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Percona Toolkit
***************
v3.0.10 released 2018-05-21
===========================
.. include:: rn.3-0-11.txt
New Features
.. include:: rn.3-0-10.txt
* :jirabug:`PT-131`: ``pt-table-checksum`` disables the QRT plugin
* :jirabug:`PT-118`: ``pt-table-checksum`` report the number of rows
of difference between master and slave.
.. include:: rn.3-0-9.txt
Improvements
.. include:: rn.3-0-8.txt
* :jirabug:`PT-1546`: Improved support of MySQL 8 roles
* :jirabug:`PT-1543`: The encrypted table status query causes high load over multiple minutes
* :jirabug:`PT-1536`: Added info about encrypted tablespaces in ``pt-mysql-summary``
.. include:: rn.3-0-7.txt
Bug Fixes
.. include:: rn.3-0-6.txt
* :jirabug:`PT-1556`: ``pt-table-checksum`` 3.0.9 does not change ``binlog_format`` to statement any more.
.. include:: rn.3-0-5.txt
v3.0.9 released 2018-04-20
==========================
.. include:: rn.3-0-4.txt
New Tools
.. include:: rn.3-0-3.txt
* :jirabug:`PT-1501`: ``pt-secure-collect`` - New tool to collect and sanitize pt-tools outputs
New Features
* :jirabug:`PT-1530`: Add support for encryption status to ``pt-mysql-summary``
* :jirabug:`PT-1526`: Add ndb status to ``pt-mysql-summary`` (Thanks Fernando Ipar)
* :jirabug:`PT-1525`: Add support for MySQL 8 roles into ``pt-mysql-summary``
* :jirabug:`PT-1509`: Make ``pt-table-sync`` only set binlog_format when necessary (Thanks Moritz Lenz)
* :jirabug:`PT-1508`: Add ``--read-only-interval`` and ``--fail-successive-errors`` flags to ``pt-heartbeat`` (Thanks Shlomi Noach)
* :jirabug:`PT-243`: Add ``--max-hostname-length`` and ``--max-line-length`` flags to ``pt-query-digest``
Bug Fixes
* :jirabug:`PT-1527`: Fixed ``pt-table-checksum`` ignores ``--nocheck-binlog-format``
Improvements
* :jirabug:`PT-1507`: ``pt-summary`` does not reliably read in the transparent huge pages setting (Thanks Nick Veenhof)
* :jirabug:`PT-1488`: ``pt-show-grants`` support for MySQL 8.0
v3.0.8 released 2018-03-13
==========================
New Features
* :jirabug:`PT-1500`: Added --output=secure-slowlog option to ``pt-query-digest``
Buf Fixes
* :jirabug:`PT-1503`: The post-install script fails on VM due to improper UUID file detection
* :jirabug:`PT-1492`: ``pt-kill`` in version 3.0.7 ignores the value of the ``--busy-time``
v3.0.7 released 2018-03-01
==========================
New Features
* :jirabug:`PT-633`: Added --mysql-only option to ``pt-stalk`` for RDS
Bug Fixes
* :jirabug:`PT-244`: The ``--data-dir`` option of ``pt-online-schema-change`` is broken for partitioned table
* :jirabug:`PT-1256`: ``pt-table-sync`` does not use the character set for the table it is synchronizing
* :jirabug:`PT-1455`: ``pt-osc`` is stuck when filtering out on the slave the table that is being altered
* :jirabug:`PT-1485`: The *Security* section of ``pt-mysql-summary`` is broken in versions bigger than 5.6
* :jirabug:`PMM-1905`: ``Explain`` fails if it encounters a negative ``ntoreturn``
Known Issues:
* pt-online-schema-change will lock forever if using ``--drop-swap`` under MySQL 8.0.3-rc and 8.0.4-rc due to an error in MySQL: https://bugs.mysql.com/bug.php?id=8948
* pt-online-schema-change will lose FK constraints under MySQL 8.0.2-dmr, 8.0.3-rc 8.0.4-rc due to an error in MySQL: https://bugs.mysql.com/bug.php?id=89441
* pt-show-grants can't handle MySQL 8 roles yet
v3.0.6 released 2018-01-04
==========================
Percona Toolkit 3.0.6 includes the following changes:
New Features
* :jirabug:`PT-221`: Improve ``pt-table-sync`` support for ``MyRocks``
* :jirabug:`PT-218`: ``pt-stalk`` now checks the ``RocksDB`` status
* :jirabug:`PT-214`: ``pt-mysql-summary`` contains the ``RocksDB`` section
* :jirabug:`PT-205`: ``pt-osc`` shows a message if trying to set the engine to
``rocksdb`` and ``binlog_format != row``.
* :jirabug:`PT-204`: ``pt-table-checksum`` skips ``RocksDB`` tables.
Known Issues
* :jirabug:`PT-238`: The information message implemented for :jirabug:`PT-204` has a typo when referring to the ``--ignore-engines`` parameter. This problem is planned to be fixed in the next release.
* :jirabug:`PT-240`: It has been detected that the implementation of :jirabug:`PT-205` is not complete and ``pt-osc`` may fail when altering tables. This problem is planned to be fixed in the next release.
Bug Fixes
* :jirabug:`PT-234`: The general log parser cannot handle timestamps which include time zones
* :jirabug:`PT-229`: ``pt-online-schema-change`` does not retry on a deadlock error when using ``Percona Server`` 5.7
* :jirabug:`PT-225`: ``pt-table-checksum`` ignores generated columns
v3.0.5 released 2017-11-20
==========================
Percona Toolkit 3.0.5 includes the following changes:
New Features
* :jirabug:`PMM-1590`: Improve MongoDB Profiler for ``PMM`` and ``PT``
* :jirabug:`PT-216`: The ``mongodb-query-digest`` supports ``MongoDB`` versions lower than 3.2; incorrect output was fixed.
* :jirabug:`PT-182`: The ``pt-summary``, ``pt-mysql-summary``, ``pt-mongodb-summary`` commands provide output in the the JSON format.
* :jirabug:`PT-152`: ``pt-mysql-summary`` shows the output of the *Show Slave Hosts* command.
* :jirabug:`PT-139`: ``pt-table-sync`` supports replication channels (requires MySQL version 5.7.6 or higher)
Bug fixes
* :jirabug:`PT-211`: ``pt-mext`` fails if the ``Rsa_public_key`` variable is empty.
* :jirabug:`PT-212`: ``pt-mongodb-query-digest --version`` produced incorrect values.
* :jirabug:`PT-202`: ``pt-online-schema-change`` incorrectly processed virtual columns.
* :jirabug:`PT-200`: ``pt-online-schema-change`` command reported an error when the name of an index contained 'unique' as as the prefix or suffix.
* :jirabug:`PT-199`: ``pt-table-checksum`` did not detect differences on a system with the ROW based replication active.
* :jirabug:`PT-196`: ``pt-onine-schema-change --max-load`` paused if a status variable was passed **0** as the value.
* :jirabug:`PT-193`: ``pt-table-checksum`` reported a misleading error if a column comment contained an apostrophe. For more information, see :lpbug:`1708749`.
* :jirabug:`PT-187`: In some cases, ``pt-table-checksum`` did not report that the same table contained different values on the master and slave.
* :jirabug:`PT-186`: ``pt-online-schema-change --alter`` could fail if field names contained upper case characters. For more information, see :lpbug:`1705998`.
* :jirabug:`PT-183`: In some cases ``pt-mongodb-query-digest`` could not connect to a db using authentication.
* :jirabug:`PT-167`: In some cases, ``pt-kill`` could ignore the value of the ``--busy-time`` parameter. For more information, see :lpbug:`1016272`.
* :jirabug:`PT-161`: When run with the ``--skip-check-slave-lag``, the ``pt-table-checksum`` could fail in some cases.
v3.0.4 released 2017-08-02
==========================
Percona Toolkit 3.0.4 includes the following changes:
New Features
* :jirabug:`PT-90`: Added collection of information about prepared statements
by ``pt-stalk`` when Performance Schema is enabled.
For more information, see :lpbug:`1642750`.
* :jirabug:`PT-91`: Added the ``--preserve-triggers`` option
for ``pt-online-schema-change`` to support ``AFTER`` triggers.
* :jirabug:`PT-138`: Added ``--output-format`` option
for ``pt-mongodb-summary`` to choose between JSON format
and the default plain text.
* :jirabug:`PT-141`: Added the ``--output-format=csv`` parameter
for ``pt-archiver`` to archive rows in CSV format.
* :jirabug:`PT-142`: Added the ``--only-same-schema-fks`` option
for ``pt-online-schema-change`` to check foreigns keys only on tables
with the same schema as the original table.
This should speed up the tool's execution,
but keep in mind that if you have foreign keys
referencing tables in other schemas,
they won't be detected.
For more information, see :lpbug:`1690122`.
* :jirabug:`PT-153`: Added the ``--check-unique-key-change`` option
for ``pt-online-schema-change`` to abort
if the specified statement for ``--alter`` is trying to add a unique index.
This is supposed to avoid adding duplicate keys
that might lead to silently losing data.
* :jirabug:`PT-173`: Added the ``--truncate-replicate-table`` option
for ``pt-table-checksum`` to ensure stale data is removed.
Bug fixes
* :jirabug:`PT-136`: Fixed ``pt-table-checksum`` to support tables
that have columns with different collations or charsets.
For more information, see :lpbug:`1674266`.
* :jirabug:`PT-143`: Fixed primary key handling by ``pt-archiver``.
For more information, see :lpbug:`1691630`.
* :jirabug:`PT-144`: Limited constraint name in the new table
when running ``pt-online-schema-change``.
For more information, see :lpbug:`1491674`.
* :jirabug:`PT-146`: Fixed the ``--no-check-binlog-format`` option
for ``pt-table-checksum`` to work as expected.
* :jirabug:`PT-148`: Fixed the use of uninitialized value in ``printf()``
for ``pt-online-schema-change``.
For more information, see :lpbug:`1693614`.
* :jirabug:`PT-151`: Fixed ``pt-table-sync`` to prevent field type ``point``
to be taken as decimal.
* :jirabug:`PT-154`: Reverted :jirabug:`PT-116`
to remove the ``--use-insert-ignore`` option
from ``pt-online-schema-change``.
* :jirabug:`PT-161`: Fixed the ``--skip-check-slave-lag`` feature
for ``pt-table-checksum`` to safely check for undefined values.
* :jirabug:`PT-178`: Fixed regression in ``--check-slave-lag`` option
for ``pt-online-schema-change``.
* :jirabug:`PT-180`: Fixed regression in ``--skip-check-slave-lag`` option
for ``pt-online-schema-change``.
* :jirabug:`PT-181`: Fixed syntax error in ``pt-online-schema-change``.
Other Improvements
* :jirabug:`PT-162`: Updated list of tables ignored by ``pt-table-checksum``.
v3.0.3 released 2017-05-18
==========================
Percona Toolkit 3.0.3 includes the following changes:
New Features
* Added the ``--skip-check-slave-lag`` option for ``pt-table-checksum``, ``pt-online-schema-change``, and ``pt-archiver``.
This option can be used to specify list of servers where to skip checking for slave lag.
* 1642754: Added support for collecting replication slave information in ``pt-stalk``.
* PT-111: Added support for collecting information about variables from Performance Schema in ``pt-stalk``. For more information, see 1642753.
* PT-116: Added the ``--[no]use-insert-ignore`` option for ``pt-online-schema-change`` to force or prevent using ``IGNORE`` on ``INSERT`` statements. For more information, see 1545129.
Bug Fixes
* PT-115: Fixed ``OptionParser`` to accept repeatable DSNs.
* PT-126: Fixed ``pt-online-schema-change`` to correctly parse comments. For more information, see 1592072.
* PT-128: Fixed ``pt-stalk`` to include memory usage information. For more information, see 1510809.
* PT-130: Fixed ``pt-mext`` to work with non-empty RSA public key. For more information, see 1587404.
* PT-132: Fixed ``pt-online-schema-change`` to enable ``--no-drop-new-table`` when ``--no-swap-tables`` and ``--no-drop-triggers`` are used.
v3.0.2 released 2017-03-27
==========================
Percona Toolkit 3.0.2 includes the following changes:
New Features
* PT-73: Added support for SSL connections to ``pt-mongodb-summary`` and ``pt-mongodb-query-digest``
* 1642751: Enabled gathering of information about locks and transactions by ``pt-stalk`` using Performance Schema if it is enabled (Thanks Agustin Gallego)
Bug Fixes
* PT-74: Fixed gathering of security settings when running ``pt-mongodb-summary`` on a mongod instance that is specified as the host
* PT-75: Changed the default sort order in ``pt-mongodb-query-digest`` output to descending
* PT-76: Added support of ``&`` and ``#`` symbols in passwords for ``pt-mysql-summary``
* PT-77: Updated ``Makefile`` to support new MongoDB tools
* PT-89: Fixed ``pt-stalk`` to run ``top`` more than once to collect useful CPU usage
* PT-93: Fixed ``pt-mongodb-query-digest`` to make query ID match query key (Thanks Kamil Dziedzic)
* PT-94: Fixed ``pt-online-schema-change`` to not make duplicate rows in ``_t_new`` when updating primary key. Also see 1646713.
* PT-101: Fixed ``pt-table-checksum`` to correctly use the ``--slave-user`` and ``--slave-password`` options. Also see 1651002.
* PT-105: Fixed ``pt-table-checksum`` to continue running if a database is dropped in the process
v3.0.1 released 2017-02-20
==========================
Percona Toolkit 3.0.1 GA includes the following changes:
* Added requirement to run ``pt-mongodb-summary`` as a user with the ``clusterAdmin`` or ``root`` built-in roles.
v3.0 released 2017-02-06
========================
Percona Toolkit 3.0.0 RC includes the following changes:
New Features
* Added ``pt-mongodb-summary`` tool
* Added ``pt-mongodb-query-digest`` tool
Bug fixes
* 1402776: Updated ``MySQLProtocolParser`` to fix error when parsing ``tcpdump`` capture with ``pt-query-digest``
* 1632522: Fixed failure of ``pt-online-schema-change`` when altering a table with a self-referencing foreign key (Thanks Amiel Marqeta)
* 1654668: Fixed failure of ``pt-summary`` on Red Hat and derivatives (Thanks Marcelo Altmann)
.. include:: rn.3-0-2.txt
.. include:: rn.3-0-1.txt
v2.2.20 released 2016-12-09
===========================

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v3.0.1 released 2017-02-20
==========================
Percona Toolkit 3.0.1 GA includes the following changes:
* Added requirement to run ``pt-mongodb-summary`` as a user with the ``clusterAdmin`` or ``root`` built-in roles.
v3.0 released 2017-02-06
========================
Percona Toolkit 3.0.0 RC includes the following changes:
New Features
* Added ``pt-mongodb-summary`` tool
* Added ``pt-mongodb-query-digest`` tool
Bug fixes
* 1402776: Updated ``MySQLProtocolParser`` to fix error when parsing ``tcpdump`` capture with ``pt-query-digest``
* 1632522: Fixed failure of ``pt-online-schema-change`` when altering a table with a self-referencing foreign key (Thanks Amiel Marqeta)
* 1654668: Fixed failure of ``pt-summary`` on Red Hat and derivatives (Thanks Marcelo Altmann)

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v3.0.10 released 2018-05-21
===========================
New Features
* :jirabug:`PT-131`: ``pt-table-checksum`` disables the QRT plugin
* :jirabug:`PT-118`: ``pt-table-checksum`` report the number of rows
of difference between master and slave.
Improvements
* :jirabug:`PT-1546`: Improved support of MySQL 8 roles
* :jirabug:`PT-1543`: The encrypted table status query causes high load over multiple minutes
* :jirabug:`PT-1536`: Added info about encrypted tablespaces in ``pt-mysql-summary``
Bug Fixes
* :jirabug:`PT-1556`: ``pt-table-checksum`` 3.0.9 does not change ``binlog_format`` to statement any more.

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v3.0.11 released 2018-07-06
===========================
New features
* :jirabug:`PT-1571`: Improved hostname recognition in ``pt-secure-collect``
* :jirabug:`PT-1569`: Disabled ``--alter-foreign-keys-method=drop_swap`` in ``pt-online-schema-change``
* :jirabug:`PT-242`: (``pt-stalk``) Include ``SHOW SLAVE STATUS`` on MySQL 5.7 (Thanks `Marcelo Altmann <https://www.percona.com/blog/author/marcelo-altmann/>`_)
Fixed bugs
* :jirabug:`PT-1570`: ``pt-archiver`` fails to detect columns with the word *GENERATED* as part of the comment
* :jirabug:`PT-1563`: ``pt-show-grants`` fails for MySQL 5.6 producing an error which reports that an unknown column **account_locked** has been detected.
* :jirabug:`PT-1551`: ``pt-table-checksum`` fails on MySQL 8.0.11
* :jirabug:`PT-241`: (``pt-stalk``) Slave queries don\'t run on MySQL 5.7 because the FQDN is missing (Thanks `Marcelo Altmann <https://www.percona.com/blog/author/marcelo-altmann/>`_)
Breaking changes:
Starting with this version, the queries checksum in ``pt-query-digest`` will
store the full MD5 field as a CHAR(32) field instead of storing just the least
significant bytes of the checksum as a BIGINT field. The reason for this
change is that storing only the least significant bytes as a BIGINT was
producing inconsistent results in MySQL 8 compared to MySQL 5.6+.
``pt-online-schema-change`` in MySQL 8:
Due to a `bug in MySQL 8.0+ <https://bugs.mysql.com/bug.php?id=89441>`_, it
is not possible to use the ``drop_swap`` method to rebuild constraints because
renaming a table will result in losing the foreign keys. You must specify a
different method explicitly.

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v3.0.2 released 2017-03-27
==========================
Percona Toolkit 3.0.2 includes the following changes:
New Features
* PT-73: Added support for SSL connections to ``pt-mongodb-summary`` and ``pt-mongodb-query-digest``
* 1642751: Enabled gathering of information about locks and transactions by ``pt-stalk`` using Performance Schema if it is enabled (Thanks Agustin Gallego)
Bug Fixes
* PT-74: Fixed gathering of security settings when running ``pt-mongodb-summary`` on a mongod instance that is specified as the host
* PT-75: Changed the default sort order in ``pt-mongodb-query-digest`` output to descending
* PT-76: Added support of ``&`` and ``#`` symbols in passwords for ``pt-mysql-summary``
* PT-77: Updated ``Makefile`` to support new MongoDB tools
* PT-89: Fixed ``pt-stalk`` to run ``top`` more than once to collect useful CPU usage
* PT-93: Fixed ``pt-mongodb-query-digest`` to make query ID match query key (Thanks Kamil Dziedzic)
* PT-94: Fixed ``pt-online-schema-change`` to not make duplicate rows in ``_t_new`` when updating primary key. Also see 1646713.
* PT-101: Fixed ``pt-table-checksum`` to correctly use the ``--slave-user`` and ``--slave-password`` options. Also see 1651002.
* PT-105: Fixed ``pt-table-checksum`` to continue running if a database is dropped in the process

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v3.0.3 released 2017-05-18
==========================
Percona Toolkit 3.0.3 includes the following changes:
New Features
* Added the ``--skip-check-slave-lag`` option for ``pt-table-checksum``, ``pt-online-schema-change``, and ``pt-archiver``.
This option can be used to specify list of servers where to skip checking for slave lag.
* 1642754: Added support for collecting replication slave information in ``pt-stalk``.
* PT-111: Added support for collecting information about variables from Performance Schema in ``pt-stalk``. For more information, see 1642753.
* PT-116: Added the ``--[no]use-insert-ignore`` option for ``pt-online-schema-change`` to force or prevent using ``IGNORE`` on ``INSERT`` statements. For more information, see 1545129.
Bug Fixes
* PT-115: Fixed ``OptionParser`` to accept repeatable DSNs.
* PT-126: Fixed ``pt-online-schema-change`` to correctly parse comments. For more information, see 1592072.
* PT-128: Fixed ``pt-stalk`` to include memory usage information. For more information, see 1510809.
* PT-130: Fixed ``pt-mext`` to work with non-empty RSA public key. For more information, see 1587404.
* PT-132: Fixed ``pt-online-schema-change`` to enable ``--no-drop-new-table`` when ``--no-swap-tables`` and ``--no-drop-triggers`` are used.

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v3.0.4 released 2017-08-02
==========================
Percona Toolkit 3.0.4 includes the following changes:
New Features
* :jirabug:`PT-90`: Added collection of information about prepared statements
by ``pt-stalk`` when Performance Schema is enabled.
For more information, see :lpbug:`1642750`.
* :jirabug:`PT-91`: Added the ``--preserve-triggers`` option
for ``pt-online-schema-change`` to support ``AFTER`` triggers.
* :jirabug:`PT-138`: Added ``--output-format`` option
for ``pt-mongodb-summary`` to choose between JSON format
and the default plain text.
* :jirabug:`PT-141`: Added the ``--output-format=csv`` parameter
for ``pt-archiver`` to archive rows in CSV format.
* :jirabug:`PT-142`: Added the ``--only-same-schema-fks`` option
for ``pt-online-schema-change`` to check foreigns keys only on tables
with the same schema as the original table.
This should speed up the tool's execution,
but keep in mind that if you have foreign keys
referencing tables in other schemas,
they won't be detected.
For more information, see :lpbug:`1690122`.
* :jirabug:`PT-153`: Added the ``--check-unique-key-change`` option
for ``pt-online-schema-change`` to abort
if the specified statement for ``--alter`` is trying to add a unique index.
This is supposed to avoid adding duplicate keys
that might lead to silently losing data.
* :jirabug:`PT-173`: Added the ``--truncate-replicate-table`` option
for ``pt-table-checksum`` to ensure stale data is removed.
Bug fixes
* :jirabug:`PT-136`: Fixed ``pt-table-checksum`` to support tables
that have columns with different collations or charsets.
For more information, see :lpbug:`1674266`.
* :jirabug:`PT-143`: Fixed primary key handling by ``pt-archiver``.
For more information, see :lpbug:`1691630`.
* :jirabug:`PT-144`: Limited constraint name in the new table
when running ``pt-online-schema-change``.
For more information, see :lpbug:`1491674`.
* :jirabug:`PT-146`: Fixed the ``--no-check-binlog-format`` option
for ``pt-table-checksum`` to work as expected.
* :jirabug:`PT-148`: Fixed the use of uninitialized value in ``printf()``
for ``pt-online-schema-change``.
For more information, see :lpbug:`1693614`.
* :jirabug:`PT-151`: Fixed ``pt-table-sync`` to prevent field type ``point``
to be taken as decimal.
* :jirabug:`PT-154`: Reverted :jirabug:`PT-116`
to remove the ``--use-insert-ignore`` option
from ``pt-online-schema-change``.
* :jirabug:`PT-161`: Fixed the ``--skip-check-slave-lag`` feature
for ``pt-table-checksum`` to safely check for undefined values.
* :jirabug:`PT-178`: Fixed regression in ``--check-slave-lag`` option
for ``pt-online-schema-change``.
* :jirabug:`PT-180`: Fixed regression in ``--skip-check-slave-lag`` option
for ``pt-online-schema-change``.
* :jirabug:`PT-181`: Fixed syntax error in ``pt-online-schema-change``.
Other Improvements
* :jirabug:`PT-162`: Updated list of tables ignored by ``pt-table-checksum``.

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v3.0.5 released 2017-11-20
==========================
Percona Toolkit 3.0.5 includes the following changes:
New Features
* :jirabug:`PMM-1590`: Improve MongoDB Profiler for ``PMM`` and ``PT``
* :jirabug:`PT-216`: The ``mongodb-query-digest`` supports ``MongoDB`` versions lower than 3.2; incorrect output was fixed.
* :jirabug:`PT-182`: The ``pt-summary``, ``pt-mysql-summary``, ``pt-mongodb-summary`` commands provide output in the the JSON format.
* :jirabug:`PT-152`: ``pt-mysql-summary`` shows the output of the *Show Slave Hosts* command.
* :jirabug:`PT-139`: ``pt-table-sync`` supports replication channels (requires MySQL version 5.7.6 or higher)
Bug fixes
* :jirabug:`PT-211`: ``pt-mext`` fails if the ``Rsa_public_key`` variable is empty.
* :jirabug:`PT-212`: ``pt-mongodb-query-digest --version`` produced incorrect values.
* :jirabug:`PT-202`: ``pt-online-schema-change`` incorrectly processed virtual columns.
* :jirabug:`PT-200`: ``pt-online-schema-change`` command reported an error when the name of an index contained 'unique' as as the prefix or suffix.
* :jirabug:`PT-199`: ``pt-table-checksum`` did not detect differences on a system with the ROW based replication active.
* :jirabug:`PT-196`: ``pt-onine-schema-change --max-load`` paused if a status variable was passed **0** as the value.
* :jirabug:`PT-193`: ``pt-table-checksum`` reported a misleading error if a column comment contained an apostrophe. For more information, see :lpbug:`1708749`.
* :jirabug:`PT-187`: In some cases, ``pt-table-checksum`` did not report that the same table contained different values on the master and slave.
* :jirabug:`PT-186`: ``pt-online-schema-change --alter`` could fail if field names contained upper case characters. For more information, see :lpbug:`1705998`.
* :jirabug:`PT-183`: In some cases ``pt-mongodb-query-digest`` could not connect to a db using authentication.
* :jirabug:`PT-167`: In some cases, ``pt-kill`` could ignore the value of the ``--busy-time`` parameter. For more information, see :lpbug:`1016272`.
* :jirabug:`PT-161`: When run with the ``--skip-check-slave-lag``, the ``pt-table-checksum`` could fail in some cases.

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v3.0.6 released 2018-01-04
==========================
Percona Toolkit 3.0.6 includes the following changes:
New Features
* :jirabug:`PT-221`: Improve ``pt-table-sync`` support for ``MyRocks``
* :jirabug:`PT-218`: ``pt-stalk`` now checks the ``RocksDB`` status
* :jirabug:`PT-214`: ``pt-mysql-summary`` contains the ``RocksDB`` section
* :jirabug:`PT-205`: ``pt-osc`` shows a message if trying to set the engine to
``rocksdb`` and ``binlog_format != row``.
* :jirabug:`PT-204`: ``pt-table-checksum`` skips ``RocksDB`` tables.
Known Issues
* :jirabug:`PT-238`: The information message implemented for :jirabug:`PT-204` has a typo when referring to the ``--ignore-engines`` parameter. This problem is planned to be fixed in the next release.
* :jirabug:`PT-240`: It has been detected that the implementation of :jirabug:`PT-205` is not complete and ``pt-osc`` may fail when altering tables. This problem is planned to be fixed in the next release.
Bug Fixes
* :jirabug:`PT-234`: The general log parser cannot handle timestamps which include time zones
* :jirabug:`PT-229`: ``pt-online-schema-change`` does not retry on a deadlock error when using ``Percona Server`` 5.7
* :jirabug:`PT-225`: ``pt-table-checksum`` ignores generated columns

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v3.0.7 released 2018-03-01
==========================
New Features
* :jirabug:`PT-633`: Added --mysql-only option to ``pt-stalk`` for RDS
Bug Fixes
* :jirabug:`PT-244`: The ``--data-dir`` option of ``pt-online-schema-change`` is broken for partitioned table
* :jirabug:`PT-1256`: ``pt-table-sync`` does not use the character set for the table it is synchronizing
* :jirabug:`PT-1455`: ``pt-osc`` is stuck when filtering out on the slave the table that is being altered
* :jirabug:`PT-1485`: The *Security* section of ``pt-mysql-summary`` is broken in versions bigger than 5.6
* :jirabug:`PMM-1905`: ``Explain`` fails if it encounters a negative ``ntoreturn``
Known Issues:
* pt-online-schema-change will lock forever if using ``--drop-swap`` under MySQL 8.0.3-rc and 8.0.4-rc due to an error in MySQL: https://bugs.mysql.com/bug.php?id=8948
* pt-online-schema-change will lose FK constraints under MySQL 8.0.2-dmr, 8.0.3-rc 8.0.4-rc due to an error in MySQL: https://bugs.mysql.com/bug.php?id=89441
* pt-show-grants can't handle MySQL 8 roles yet

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v3.0.8 released 2018-03-13
==========================
New Features
* :jirabug:`PT-1500`: Added --output=secure-slowlog option to ``pt-query-digest``
Buf Fixes
* :jirabug:`PT-1503`: The post-install script fails on VM due to improper UUID file detection
* :jirabug:`PT-1492`: ``pt-kill`` in version 3.0.7 ignores the value of the ``--busy-time``

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v3.0.9 released 2018-04-20
==========================
New Tools
* :jirabug:`PT-1501`: ``pt-secure-collect`` - New tool to collect and sanitize pt-tools outputs
New Features
* :jirabug:`PT-1530`: Add support for encryption status to ``pt-mysql-summary``
* :jirabug:`PT-1526`: Add ndb status to ``pt-mysql-summary`` (Thanks Fernando Ipar)
* :jirabug:`PT-1525`: Add support for MySQL 8 roles into ``pt-mysql-summary``
* :jirabug:`PT-1509`: Make ``pt-table-sync`` only set binlog_format when necessary (Thanks Moritz Lenz)
* :jirabug:`PT-1508`: Add ``--read-only-interval`` and ``--fail-successive-errors`` flags to ``pt-heartbeat`` (Thanks Shlomi Noach)
* :jirabug:`PT-243`: Add ``--max-hostname-length`` and ``--max-line-length`` flags to ``pt-query-digest``
Bug Fixes
* :jirabug:`PT-1527`: Fixed ``pt-table-checksum`` ignores ``--nocheck-binlog-format``
Improvements
* :jirabug:`PT-1507`: ``pt-summary`` does not reliably read in the transparent huge pages setting (Thanks Nick Veenhof)
* :jirabug:`PT-1488`: ``pt-show-grants`` support for MySQL 8.0