RMAN – PL/SQL package SYS.DBMS_RCVMAN version xxxxxx in TARGET database is not current

This is an easy one. This is the error/warning you might while connecting to RMAN:

[oracle@persephone ~]$ rman target=/
Recovery Manager: Release 19.0.0.0.0 - Production on Wed Apr 26 14:26:57 2023
Version 19.15.0.0.0

Copyright (c) 1982, 2019, Oracle and/or its affiliates.  All rights reserved.

PL/SQL package SYS.DBMS_BACKUP_RESTORE version 19.13.00.00 in TARGET database is not current
PL/SQL package SYS.DBMS_RCVMAN version 19.13.00.00 in TARGET database is not current
connected to target database: DBTEST (DBID=1498654489)

RMAN>

The way to fix it is running this:

SQL> @$ORACLE_HOME/rdbms/admin/dbmsrman.sql 
SQL> @$ORACLE_HOME/rdbms/admin/dbmsbkrs.sql 
SQL> @$ORACLE_HOME/rdbms/admin/prvtrmns.plb 
SQL> @$ORACLE_HOME/rdbms/admin/prvtbkrs.plb

And error gone!

[oracle@persephone ~]$ rman target=/

Recovery Manager: Release 19.0.0.0.0 - Production on Wed Apr 26 14:29:24 2023
Version 19.15.0.0.0

Copyright (c) 1982, 2019, Oracle and/or its affiliates.  All rights reserved.

connected to target database: DBTEST (DBID=1498654489)

RMAN>