Created a database with R package fresh install version 0.2.3
insert, select, update...all goes fine

then I use a database client (Dbeaver) with jdbc driver version duckdb_jdbc-0.2.3.jar
classname org.duckdb.DuckDBDriver

i get this error regarding versions:

 IO Error: Trying to read a database file with version number 4, but we can only read version 6.
The database file was created with an older version of DuckDB.

is there any way of creating a file forcing version 6 to be read properly?

[solved]
reinstalled R package and rebooted machine.