Version 4.8.4

Released on 2022-09-15.


If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher before you upgrade to 4.8.4.

We recommend that you upgrade to the latest 4.7 release before moving to 4.8.4.

A rolling upgrade from 4.7.x to 4.8.4 is supported.

Before upgrading, you should back up your data.

Table of Contents

See the Version 4.8.0 release notes for a full list of changes in the 4.8 series.


  • Fixed a file descriptor leak that was triggered by querying the os column of the sys.nodes table.

  • Fixed an issue that could lead to stuck queries.

  • Fixed EXPLAIN plan output for queries with a WHERE clause containing implicit cast symbols. A possible optimization of our planner/optimizer was not used, resulting in different output than actually used on plan execution.

  • Fixed an issue that could lead to a NoSuchElementException when using the JDBC client and mixing different DML statements using the addBatch functionality.