SQL & PL/SQL

Hi,
I'm fighting with developers bad behaviour which is, something like that:

CREATE OR REPLACE PACKAGE pkg1 IS

g_version VARCHAR2(20) := '7.3';
    TYPE t_id_kon IS RECORD(
    id_kon VARCHAR2(12),
    sr_id    NUMBER(5));

  TYPE t_id_kont IS TABLE OF t_id_kon INDEX BY BINARY_INTEGER;
  FUNCTION get_version RETURN VARCHAR2;
END pkg1;
/

I did some tests and looks like when You recompile pkg1 with
global variable g_version there is ORA-04068 generated for every sessions using that pkg1 before recompile.
But what about type and table_type declared in pkg1 are they causing same behaviour as global varialbe g_version ?

And generally how to deal with that kind of situations from application point of view, You have to catch that exception and rerun your request right ?
regards
GregG