.. _version_2.1.10:

==============
Version 2.1.10
==============

Released on 2017/11/13.

.. NOTE::

   If you are upgrading a cluster, you must be running CrateDB
   :ref:`version_1.1.3` or higher before you upgrade to 2.1.10.

   If you want to perform a :ref:`rolling_upgrade`, your current CrateDB
   version number must be :ref:`version_2.1.0`.  If you want to upgrade from a
   version prior to this, the upgrade will introduce all of the breaking
   changes listed for :ref:`version_2.1.0`, and will require a
   :ref:`full_restart_upgrade`.

   Consult the :ref:`version_2.1.0_upgrade_notes` for ``2.1.0`` when upgrading.

.. WARNING::

   Before upgrading, you should `back up your data`_.

.. _back up your data: https://crate.io/a/backing-up-and-restoring-crate/

Changelog
=========

Fixes
-----

- Fixed an issue that resulted in closed partitions showing a ``CRITICAL`` data
  state in the Admin UI.

- Fixed an issue that caused ``INSERT INTO .. VALUES`` statements to fail if
  the ``VALUES`` clause contains multiple rows and the table has a generated
  column as primary key.

- Fixed a performance regression for ``DELETE`` and ``UPDATE`` statements
  introduced in ``2.1.9``.
