Version 6.3.5

Released on 2026-07-06.

Note

If you are upgrading a cluster, you must be running CrateDB 5.0.0 or higher before you upgrade to 6.3.5.

We recommend that you upgrade to the latest 6.2 release before moving to 6.3.5.

A rolling upgrade from >= 6.2.0 to 6.3.5 is supported. Before upgrading, you should back up your data.

Warning

Tables that were created before CrateDB 5.x will not function with 6.x and must be recreated before moving to 6.x.x.

You can recreate tables using COPY TO and COPY FROM or by inserting the data into a new table.

Table of contents

See the Version 6.3.0 release notes for a full list of changes in the 6.3 series.

Fixes

  • Fixed an issue causing IllegalStateException errors on inserts into a table with primary keys.

  • Fixed an issue with the JWT authentication method that caused authentication failures if the key resources endpoint included the optional alg field.

  • Fixed a regression introduced in 6.3.0 that caused a region is missing error when using a COPY <tbl> FROM 's3://...' statement where the endpoint wasn’t part of the URI.

  • Fixed an issue that caused authentication to fail when requiring the pg protocol in the HBA configuration section while connecting via the postgres protocol.

  • Fixed an issue that would throw a misleading NullPointerException when CREATE REPOSITORY failed during repository verification, by returning a user friendly error message.

  • Fixed an issue causing KILL statement or statement_timeout to not properly kill a query and leading to resources leak.

  • Fixed an issue that led to an error being thrown when using distinct with the mean alias of the avg() function. e.g.:

    SELECT mean(DISTINCT <columnName>) FROM tbl