Version 4.2.1
Note
If you are upgrading a cluster, you must be running CrateDB 4.0.2 or higher before you upgrade 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.
Fixed an issue that prevented the use of subscript expressions as conflict target in clauses of statements.
Fixed an issue that could lead to a error message when using .