Function problem - Mailing list pgsql-admin

Hi Admins

I’m using pgbouncer in my postgresql installation. For authorization purposese I use function public.lookup (https://www.cybertec-postgresql.com/en/pgbouncer-authentication-made-easy/)   which is defined for each database. Since we upgraded postgresql from V14 to V16 I have problems when migrating database from one instance to another:  authentication doesn’t work. I have to drop function and define it again on database to make authentication work.  Any idea why ?

Best regards!