Version 4.0.1

    Note

    Please consult the Upgrade Notes before upgrading. Before upgrading to 4.0.1 you should be running a CrateDB cluster that is at least on 3.0.7.

    An upgrade to requires a full restart upgrade.

    When restarting, CrateDB will migrate indexes to a newer format. Depending on the amount of data, this may delay node start-up time.

    Tables that were created prior CrateDB 3.x will not function with 4.x and must be recreated before moving to 4.x.x.

    You can recreate tables using and COPY FROM or by .

    Before upgrading, you should back up your data.

    Table of Contents

    • Fixed a possible NPE which could occur when querying the table.

    • Fixed an issue that led to DEFAULT constraints of inner columns of object columns to be ignored.