Version 4.2.1

Released on 2020-07-14.


If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher before you upgrade to 4.2.1.

We recommend that you upgrade to the latest 4.1 release before moving to 4.2.1.

A rolling upgrade from 4.1.7+ to 4.2.1 is supported.

Before upgrading, you should back up your data.

Table of Contents

See the Version 4.2.0 release notes for a full list of changes in the 4.2 series.


  • Fixed an issue with the quote_ident scalar function that caused it to quote subscript expressions like "col['x']" instead of "col"['x'].

  • Fixed an issue that prevented the use of subscript expressions as conflict target in ON CONFLICT clauses of INSERT statements.

  • Fixed an issue where drop snapshot on an azure repository would not delete all the related data.

  • Fixed an issue that could lead to a Field is not streamable error message when using window functions.