.. _version_2.0.1:

=============
Version 2.0.1
=============

Released on 2017/06/12.

.. WARNING::

    CrateDB 2.x versions prior 2.0.4 (including this version) contain a critical
    bug which leads to deletion of blob data upon node shutdown. It is
    recommended to not install those versions.

.. rubric:: Table of contents

.. contents::
   :local:

Changelog
=========

Breaking Changes
----------------

- Changed default required shard copies for table creation and write
  operations from ``quorum`` to ``all``.

- Changed the default value of ``number_of_replicas`` from ``1`` to ``0-1``.

Changes
-------

- Expose new setting ``write.wait_for_active_shards`` to allow users to
  adjust the required shard copies for write operation to their needs.

- Expose fields for ``information_schema.columns`` and
  ``information_schema.tables`` so that it conforms to SQL-99 standard.

Fixes
-----

- Added missing table setting ``translog.durability`` which is required and
  must be set accordingly so that ``translog.sync_interval`` takes effect.

- Fixed a NPE when querying ``sys.shards`` table.

- Log failed authentication attempts at log level ``WARN``.
